kopia lustrzana https://github.com/micropython/micropython
stmhal - add pin mapping, gpio, exti, usrsw
Dave Hylands
rodzic
0a64c92a9c
commit
ca5444e6cd
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@ -45,6 +45,10 @@ vpath %.c . $(TOP)
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$(BUILD)/%.o: %.c
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$(call compile_c)
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$(BUILD)/%.pp: %.c
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$(ECHO) "PreProcess $<"
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$(Q)$(CC) $(CFLAGS) -E -Wp,-C,-dD,-dI -o $@ $<
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# The following rule uses | to create an order only prereuisite. Order only
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# prerequisites only get built if they don't exist. They don't cause timestamp
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# checkng to be performed.
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@ -62,6 +62,8 @@ SRC_C = \
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systick.c \
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led.c \
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pin.c \
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pin_map.c \
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pin_named_pins.c \
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usart.c \
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usb.c \
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printf.c \
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@ -72,8 +74,10 @@ SRC_C = \
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pybmodule.c \
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import.c \
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lexerfatfs.c \
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gpio.c \
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exti.c \
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usrsw.c \
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# gpio.c \
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# lcd.c \
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# servo.c \
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# flash.c \
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@ -86,10 +90,6 @@ SRC_C = \
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# adc.c \
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# rtc.c \
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# file.c \
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# pin_named_pins.c \
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# pin_map.c \
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# exti.c \
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# usrsw.c \
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# pybwlan.c \
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SRC_S = \
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@ -20,8 +20,8 @@
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// USRSW is pulled low. Pressing the button makes the input go high.
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#define USRSW_PIN (pin_B11)
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#define USRSW_PUPD (GPIO_PuPd_NOPULL)
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#define USRSW_EXTI_EDGE (EXTI_Trigger_Rising)
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#define USRSW_PULL (GPIO_NOPULL)
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#define USRSW_EXTI_MODE (GPIO_MODE_IT_RISING)
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#define USRSW_PRESSED (1)
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/* LED */
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@ -16,8 +16,8 @@
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// USRSW has no pullup or pulldown, and pressing the switch makes the input go low
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#define USRSW_PIN (pin_A13)
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#define USRSW_PUPD (GPIO_PuPd_UP)
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#define USRSW_EXTI_EDGE (EXTI_Trigger_Falling)
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#define USRSW_PULL (GPIO_PULLUP)
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#define USRSW_EXTI_MODE (GPIO_MODE_IT_FALLING)
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#define USRSW_PRESSED (0)
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/* LED */
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@ -16,8 +16,8 @@
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// USRSW has no pullup or pulldown, and pressing the switch makes the input go low
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#define USRSW_PIN (pin_B3)
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#define USRSW_PUPD (GPIO_PuPd_UP)
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#define USRSW_EXTI_EDGE (EXTI_Trigger_Falling)
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#define USRSW_PULL (GPIO_PULLUP)
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#define USRSW_EXTI_MODE (GPIO_MODE_IT_FALLING)
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#define USRSW_PRESSED (0)
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/* LED */
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@ -16,8 +16,8 @@
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// USRSW is pulled low. Pressing the button makes the input go high.
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#define USRSW_PIN (pin_A0)
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#define USRSW_PUPD (GPIO_PuPd_NOPULL)
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#define USRSW_EXTI_EDGE (EXTI_Trigger_Rising)
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#define USRSW_PULL (GPIO_NOPULL)
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#define USRSW_EXTI_MODE (GPIO_MODE_IT_RISING)
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#define USRSW_PRESSED (1)
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/* LED */
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@ -0,0 +1,346 @@
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#include <stdio.h>
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#include <stddef.h>
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#include <string.h>
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#include <stm32f4xx_hal.h>
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#include "misc.h"
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#include "mpconfig.h"
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#include "qstr.h"
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#include "obj.h"
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#include "runtime.h"
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#include "nlr.h"
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#include "pin.h"
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#include "exti.h"
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// Usage Model:
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//
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// There are a total of 22 interrupt lines. 16 of these can come from GPIO pins
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// and the remaining 6 are from internal sources.
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//
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// For lines 0 thru 15, a given line can map to the corresponding line from an
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// arbitrary port. So line 0 can map to Px0 where x is A, B, C, ... and
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// line 1 can map to Px1 where x is A, B, C, ...
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//
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// def callback(line):
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// print("line =", line)
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//
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// # Configure the pin as a GPIO input.
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// pin = pyb.Pin.board.X1
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// pyb.gpio_in(pin, pyb.PULL_UP)
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// exti = pyb.Exti(pin, pyb.Exti.MODE_IRQ_FALLING, pyb.PULLUP, callback)
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//
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// Now every time a falling edge is seen on the X1 pin, the callback will be
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// called. Caution: mechanical pushbuttons have "bounce" and pushing or
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// releasing a switch will often generate multiple edges.
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// See: http://www.eng.utah.edu/~cs5780/debouncing.pdf for a detailed
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// explanation, along with various techniques for debouncing.
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//
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// Trying to register 2 callbacks onto the same pin will throw an exception.
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//
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// If pin is passed as an integer, then it is assumed to map to one of the
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// internal interrupt sources, and must be in the range 16 thru 22.
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//
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// All other pin objects go through the pin mapper to come up with one of the
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// gpio pins.
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//
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// exti = pyb.Exti(pin, mode, pull, callback)
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//
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// Valid modes are pyb.Exti.MODE_IRQ_RISING, pyb.Exti.MODE_IRQ_FALLING,
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// pyb.Exti.MODE_IRQ_RISING_FALLING, pyb.Exti.MODE_EVT_RISING,
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// pyb.Exti.MODE_EVT_FALLING, and pyb.Exti.MODE_EVT_RISING_FALLING.
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//
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// Only the MODE_IRQ_xxx modes have been tested. The MODE_EVENT_xxx modes have
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// something to do with sleep mode and he WFE instruction.
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//
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// Valid pull values are pyb.PULL_UP, pyb.PULL_DOWN, pyb.PULL_NONE.
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//
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// exti.line() will return the line number that pin was mapped to.
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// exti.disable() can be use to disable the interrupt associated with a given
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// exti object. This could be useful for debouncing.
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// exti.enable() enables a disabled interrupt
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// exti.swint() will allow the callback to be triggered from software.
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//
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// pyb.Exti.regs() will dump the values of the EXTI registers.
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//
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// There is also a C API, so that drivers which require EXTI interrupt lines
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// can also use this code. See exti.h for the available functions and
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// usrsw.h for an example of using this.
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#define EXTI_OFFSET (EXTI_BASE - PERIPH_BASE)
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// Macro used to set/clear the bit corresponding to the line in the IMR/EMR
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// register in an atomic fashion by using bitband addressing.
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#define EXTI_MODE_BB(mode, line) (*(__IO uint32_t *)(PERIPH_BB_BASE + ((EXTI_OFFSET + (mode)) * 32) + ((line) * 4)))
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#define EXTI_Mode_Interrupt offsetof(EXTI_TypeDef, IMR)
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#define EXTI_Mode_Event offsetof(EXTI_TypeDef, EMR)
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#define EXTI_SWIER_BB(line) (*(__IO uint32_t *)(PERIPH_BB_BASE + ((EXTI_OFFSET + offsetof(EXTI_TypeDef, SWIER)) * 32) + ((line) * 4)))
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typedef struct {
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mp_obj_base_t base;
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mp_small_int_t line;
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} exti_obj_t;
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typedef struct {
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mp_obj_t callback_obj;
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void *param;
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uint32_t mode;
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} exti_vector_t;
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static exti_vector_t exti_vector[EXTI_NUM_VECTORS];
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#if !defined(ETH)
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#define ETH_WKUP_IRQn 62 // The 405 doesn't have ETH, but we want a value to put in our table
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#endif
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static const uint8_t nvic_irq_channel[EXTI_NUM_VECTORS] = {
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EXTI0_IRQn, EXTI1_IRQn, EXTI2_IRQn, EXTI3_IRQn, EXTI4_IRQn,
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EXTI9_5_IRQn, EXTI9_5_IRQn, EXTI9_5_IRQn, EXTI9_5_IRQn, EXTI9_5_IRQn,
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EXTI15_10_IRQn, EXTI15_10_IRQn, EXTI15_10_IRQn, EXTI15_10_IRQn, EXTI15_10_IRQn,
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EXTI15_10_IRQn, PVD_IRQn, RTC_Alarm_IRQn, OTG_FS_WKUP_IRQn, ETH_WKUP_IRQn,
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OTG_HS_WKUP_IRQn, TAMP_STAMP_IRQn, RTC_WKUP_IRQn
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};
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// NOTE: param is for C callers. Python can use closure to get an object bound
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// with the function.
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uint exti_register(mp_obj_t pin_obj, mp_obj_t mode_obj, mp_obj_t pull_obj, mp_obj_t callback_obj, void *param) {
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const pin_obj_t *pin = NULL;
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uint v_line;
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if (MP_OBJ_IS_INT(pin_obj)) {
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// If an integer is passed in, then use it to identify lines 16 thru 22
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// We expect lines 0 thru 15 to be passed in as a pin, so that we can
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// get both the port number and line number.
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v_line = mp_obj_get_int(pin_obj);
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if (v_line < 16) {
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nlr_jump(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "EXTI vector %d < 16, use a Pin object", v_line));
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}
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if (v_line >= EXTI_NUM_VECTORS) {
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nlr_jump(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "EXTI vector %d >= max of %d", v_line, EXTI_NUM_VECTORS));
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}
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} else {
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pin = pin_map_user_obj(pin_obj);
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v_line = pin->pin;
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}
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int mode = mp_obj_get_int(mode_obj);
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if (mode != GPIO_MODE_IT_RISING &&
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mode != GPIO_MODE_IT_FALLING &&
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mode != GPIO_MODE_IT_RISING_FALLING &&
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mode != GPIO_MODE_EVT_RISING &&
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mode != GPIO_MODE_EVT_FALLING &&
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mode != GPIO_MODE_EVT_RISING_FALLING) {
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nlr_jump(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "Invalid EXTI Mode: %d", mode));
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}
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int pull = mp_obj_get_int(pull_obj);
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if (pull != GPIO_NOPULL &&
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pull != GPIO_PULLUP &&
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pull != GPIO_PULLDOWN) {
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nlr_jump(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "Invalid EXTI Pull: %d", pull));
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}
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exti_vector_t *v = &exti_vector[v_line];
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if (v->callback_obj != mp_const_none && callback_obj != mp_const_none) {
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nlr_jump(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "EXTI vector %d is already in use", v_line));
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}
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// We need to update callback and param atomically, so we disable the line
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// before we update anything.
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exti_disable(v_line);
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v->callback_obj = callback_obj;
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v->param = param;
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v->mode = (mode & 0x00010000) ? // GPIO_MODE_IT == 0x00010000
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EXTI_Mode_Interrupt : EXTI_Mode_Event;
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if (v->callback_obj != mp_const_none) {
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GPIO_InitTypeDef exti;
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exti.Pin = pin->pin_mask;
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exti.Mode = mode;
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exti.Pull = pull;
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exti.Speed = GPIO_SPEED_FAST;
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HAL_GPIO_Init(pin->gpio, &exti);
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// Calling HAL_GPIO_Init does an implicit exti_enable
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/* Enable and set NVIC Interrupt to the lowest priority */
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HAL_NVIC_SetPriority(nvic_irq_channel[v_line], 0x0F, 0x0F);
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HAL_NVIC_EnableIRQ(nvic_irq_channel[v_line]);
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}
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return v_line;
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}
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void exti_enable(uint line) {
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if (line >= EXTI_NUM_VECTORS) {
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return;
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}
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// Since manipulating IMR/EMR is a read-modify-write, and we want this to
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// be atomic, we use the bit-band area to just affect the bit we're
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// interested in.
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EXTI_MODE_BB(exti_vector[line].mode, line) = 1;
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}
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void exti_disable(uint line) {
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if (line >= EXTI_NUM_VECTORS) {
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return;
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}
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// Since manipulating IMR/EMR is a read-modify-write, and we want this to
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// be atomic, we use the bit-band area to just affect the bit we're
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// interested in.
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EXTI_MODE_BB(EXTI_Mode_Interrupt, line) = 0;
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EXTI_MODE_BB(EXTI_Mode_Event, line) = 0;
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}
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void exti_swint(uint line) {
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if (line >= EXTI_NUM_VECTORS) {
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return;
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}
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EXTI->SWIER = (1 << line);
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}
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static mp_obj_t exti_obj_line(mp_obj_t self_in) {
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exti_obj_t *self = self_in;
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return MP_OBJ_NEW_SMALL_INT(self->line);
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}
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static mp_obj_t exti_obj_enable(mp_obj_t self_in) {
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exti_obj_t *self = self_in;
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exti_enable(self->line);
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return mp_const_none;
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}
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static mp_obj_t exti_obj_disable(mp_obj_t self_in) {
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exti_obj_t *self = self_in;
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exti_disable(self->line);
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return mp_const_none;
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}
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static mp_obj_t exti_obj_swint(mp_obj_t self_in) {
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exti_obj_t *self = self_in;
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exti_swint(self->line);
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return mp_const_none;
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}
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static MP_DEFINE_CONST_FUN_OBJ_1(exti_obj_line_obj, exti_obj_line);
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static MP_DEFINE_CONST_FUN_OBJ_1(exti_obj_enable_obj, exti_obj_enable);
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static MP_DEFINE_CONST_FUN_OBJ_1(exti_obj_disable_obj, exti_obj_disable);
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static MP_DEFINE_CONST_FUN_OBJ_1(exti_obj_swint_obj, exti_obj_swint);
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static const mp_method_t exti_methods[] = {
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{ "line", &exti_obj_line_obj },
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{ "enable", &exti_obj_enable_obj },
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{ "disable", &exti_obj_disable_obj },
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{ "swint", &exti_obj_swint_obj },
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{ NULL, NULL },
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};
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static mp_obj_t exti_regs(void) {
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printf("EXTI_IMR %08lx\n", EXTI->IMR);
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printf("EXTI_EMR %08lx\n", EXTI->EMR);
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printf("EXTI_RTSR %08lx\n", EXTI->RTSR);
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printf("EXTI_FTSR %08lx\n", EXTI->FTSR);
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printf("EXTI_SWIER %08lx\n", EXTI->SWIER);
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printf("EXTI_PR %08lx\n", EXTI->PR);
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return mp_const_none;
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}
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static MP_DEFINE_CONST_FUN_OBJ_0(exti_regs_obj, exti_regs);
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typedef struct {
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const char *name;
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uint val;
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} exti_const_t;
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static const exti_const_t exti_const[] = {
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{ "MODE_IRQ_RISING", GPIO_MODE_IT_RISING },
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{ "MODE_IRQ_FALLING", GPIO_MODE_IT_FALLING },
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{ "MODE_IRQ_RISING_FALLING", GPIO_MODE_IT_RISING_FALLING },
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{ "MODE_EVT_RISING", GPIO_MODE_EVT_RISING },
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{ "MODE_EVT_FALLING", GPIO_MODE_EVT_FALLING },
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{ "MODE_EVT_RISING_FALLING", GPIO_MODE_EVT_RISING_FALLING },
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};
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#define EXTI_NUM_CONST (sizeof(exti_const) / sizeof(exti_const[0]))
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static void exti_load_attr(mp_obj_t self_in, qstr attr_qstr, mp_obj_t *dest) {
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(void)self_in;
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const char *attr = qstr_str(attr_qstr);
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if (strcmp(attr, "regs") == 0) {
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dest[0] = (mp_obj_t)&exti_regs_obj;
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return;
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}
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const exti_const_t *entry = &exti_const[0];
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for (; entry < &exti_const[EXTI_NUM_CONST]; entry++) {
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if (strcmp(attr, entry->name) == 0) {
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dest[0] = MP_OBJ_NEW_SMALL_INT(entry->val);
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dest[1] = MP_OBJ_NULL;
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return;
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}
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}
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}
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// line_obj = pyb.Exti(pin, mode, trigger, callback)
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static mp_obj_t exti_call(mp_obj_t type_in, uint n_args, uint n_kw, const mp_obj_t *args) {
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// type_in == exti_obj_type
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rt_check_nargs(n_args, 4, 4, n_kw, 0);
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exti_obj_t *self = m_new_obj(exti_obj_t);
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self->base.type = type_in;
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mp_obj_t line_obj = args[0];
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mp_obj_t mode_obj = args[1];
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mp_obj_t trigger_obj = args[2];
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mp_obj_t callback_obj = args[3];
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self->line = exti_register(line_obj, mode_obj, trigger_obj, callback_obj, NULL);
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return self;
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}
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static void exti_meta_obj_print(void (*print)(void *env, const char *fmt, ...), void *env, mp_obj_t self_in, mp_print_kind_t kind) {
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(void) self_in;
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print(env, "<Exti meta>");
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}
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static void exti_obj_print(void (*print)(void *env, const char *fmt, ...), void *env, mp_obj_t self_in, mp_print_kind_t kind) {
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exti_obj_t *self = self_in;
|
||||
print(env, "<Exti line=%u>", self->line);
|
||||
}
|
||||
|
||||
static const mp_obj_type_t exti_meta_obj_type = {
|
||||
{ &mp_type_type },
|
||||
.name = MP_QSTR_ExtiMeta,
|
||||
.print = exti_meta_obj_print,
|
||||
.call = exti_call,
|
||||
.load_attr = exti_load_attr,
|
||||
};
|
||||
|
||||
const mp_obj_type_t exti_obj_type = {
|
||||
{ &exti_meta_obj_type },
|
||||
.name = MP_QSTR_Exti,
|
||||
.print = exti_obj_print,
|
||||
.methods = exti_methods,
|
||||
};
|
||||
|
||||
void exti_init(void) {
|
||||
for (exti_vector_t *v = exti_vector; v < &exti_vector[EXTI_NUM_VECTORS]; v++) {
|
||||
v->callback_obj = mp_const_none;
|
||||
v->param = NULL;
|
||||
v->mode = EXTI_Mode_Interrupt;
|
||||
}
|
||||
}
|
||||
|
||||
void Handle_EXTI_Irq(uint32_t line) {
|
||||
if (__HAL_GPIO_EXTI_GET_FLAG(1 << line)) {
|
||||
__HAL_GPIO_EXTI_CLEAR_FLAG(1 << line);
|
||||
if (line < EXTI_NUM_VECTORS) {
|
||||
exti_vector_t *v = &exti_vector[line];
|
||||
if (v->callback_obj != mp_const_none) {
|
||||
rt_call_function_1(v->callback_obj, MP_OBJ_NEW_SMALL_INT(line));
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,38 @@
|
|||
// Vectors 0-15 are for regular pins
|
||||
// Vectors 16-22 are for internal sources.
|
||||
//
|
||||
// Use the following constants for the internal sources:
|
||||
|
||||
#define EXTI_PVD_OUTPUT (16)
|
||||
#define EXTI_RTC_ALARM (17)
|
||||
#define EXTI_USB_OTG_FS_WAKEUP (18)
|
||||
#define EXTI_ETH_WAKEUP (19)
|
||||
#define EXTI_USB_OTG_HS_WAKEUP (20)
|
||||
#define EXTI_RTC_TIMESTAMP (21)
|
||||
#define EXTI_RTC_WAKEUP (22)
|
||||
|
||||
#define EXTI_NUM_VECTORS (23)
|
||||
|
||||
#define EXTI_MODE_INTERRUPT (offsetof(EXTI_TypeDef, IMR))
|
||||
#define EXTI_MODE_EVENT (offsetof(EXTI_TypeDef, EMR))
|
||||
|
||||
#define EXTI_TRIGGER_RISING (offsetof(EXTI_TypeDef, RTSR))
|
||||
#define EXTI_TRIGGER_FALLING (offsetof(EXTI_TypeDef, FTSR))
|
||||
#define EXTI_TRIGGER_RISING_FALLING (EXTI_TRIGGER_RISING + EXTI_TRIGGER_FALLING) // just different from RISING or FALLING
|
||||
|
||||
void exti_init(void);
|
||||
|
||||
uint exti_register(mp_obj_t pin_obj, mp_obj_t mode_obj, mp_obj_t trigger_obj, mp_obj_t callback_obj, void *param);
|
||||
|
||||
void exti_enable(uint line);
|
||||
void exti_disable(uint line);
|
||||
void exti_swint(uint line);
|
||||
|
||||
void Handle_EXTI_Irq(uint32_t line);
|
||||
|
||||
typedef struct {
|
||||
mp_obj_t callback;
|
||||
void *param;
|
||||
} exti_t;
|
||||
|
||||
extern const mp_obj_type_t exti_obj_type;
|
||||
|
|
@ -0,0 +1,72 @@
|
|||
// This is a woefully inadequate set of bindings for GPIO control, and
|
||||
// needs to be replaced with something much better.
|
||||
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
#include <stm32f4xx_hal.h>
|
||||
|
||||
#include "nlr.h"
|
||||
#include "misc.h"
|
||||
#include "mpconfig.h"
|
||||
#include "qstr.h"
|
||||
#include "misc.h"
|
||||
#include "parse.h"
|
||||
#include "obj.h"
|
||||
#include "compile.h"
|
||||
#include "runtime0.h"
|
||||
#include "runtime.h"
|
||||
#include "systick.h"
|
||||
#include "gpio.h"
|
||||
#include "pin.h"
|
||||
|
||||
mp_obj_t pyb_gpio(uint n_args, mp_obj_t *args) {
|
||||
const pin_obj_t *pin = pin_map_user_obj(args[0]);
|
||||
if (n_args == 1) {
|
||||
// get pin
|
||||
return MP_OBJ_NEW_SMALL_INT(HAL_GPIO_ReadPin(pin->gpio, pin->pin_mask));
|
||||
}
|
||||
|
||||
// set pin
|
||||
HAL_GPIO_WritePin(pin->gpio, pin->pin_mask, rt_is_true(args[1]));
|
||||
return mp_const_none;
|
||||
}
|
||||
|
||||
MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pyb_gpio_obj, 1, 2, pyb_gpio);
|
||||
|
||||
mp_obj_t pyb_gpio_input(uint n_args, mp_obj_t *args) {
|
||||
const pin_obj_t *pin = pin_map_user_obj(args[0]);
|
||||
|
||||
uint32_t pull = GPIO_NOPULL;
|
||||
if (n_args > 1) {
|
||||
pull = mp_obj_get_int(args[1]);
|
||||
}
|
||||
GPIO_InitTypeDef GPIO_InitStructure;
|
||||
GPIO_InitStructure.Pin = pin->pin_mask;
|
||||
GPIO_InitStructure.Mode = GPIO_MODE_INPUT;
|
||||
GPIO_InitStructure.Pull = pull;
|
||||
HAL_GPIO_Init(pin->gpio, &GPIO_InitStructure);
|
||||
|
||||
return mp_const_none;
|
||||
}
|
||||
|
||||
MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pyb_gpio_input_obj, 1, 2, pyb_gpio_input);
|
||||
|
||||
mp_obj_t pyb_gpio_output(uint n_args, mp_obj_t *args) {
|
||||
const pin_obj_t *pin = pin_map_user_obj(args[0]);
|
||||
|
||||
uint32_t mode = GPIO_MODE_OUTPUT_PP;
|
||||
if (n_args > 1) {
|
||||
mode = mp_obj_get_int(args[1]) == GPIO_MODE_OUTPUT_OD ?
|
||||
GPIO_MODE_OUTPUT_OD: GPIO_MODE_OUTPUT_PP;
|
||||
}
|
||||
GPIO_InitTypeDef GPIO_InitStructure;
|
||||
GPIO_InitStructure.Pin = pin->pin_mask;
|
||||
GPIO_InitStructure.Mode = mode;
|
||||
GPIO_InitStructure.Speed = GPIO_SPEED_FAST;
|
||||
GPIO_InitStructure.Pull = GPIO_NOPULL;
|
||||
HAL_GPIO_Init(pin->gpio, &GPIO_InitStructure);
|
||||
|
||||
return mp_const_none;
|
||||
}
|
||||
|
||||
MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pyb_gpio_output_obj, 1, 2, pyb_gpio_output);
|
||||
|
|
@ -0,0 +1,7 @@
|
|||
mp_obj_t pyb_gpio(uint n_args, mp_obj_t *args);
|
||||
mp_obj_t pyb_gpio_output(uint n_args, mp_obj_t *args);
|
||||
mp_obj_t pyb_gpio_input(uint n_args, mp_obj_t *args);
|
||||
|
||||
MP_DECLARE_CONST_FUN_OBJ(pyb_gpio_obj);
|
||||
MP_DECLARE_CONST_FUN_OBJ(pyb_gpio_input_obj);
|
||||
MP_DECLARE_CONST_FUN_OBJ(pyb_gpio_output_obj);
|
||||
|
|
@ -38,6 +38,8 @@
|
|||
#include "pyexec.h"
|
||||
#include "pybmodule.h"
|
||||
#include "led.h"
|
||||
#include "exti.h"
|
||||
#include "usrsw.h"
|
||||
#include "usb.h"
|
||||
#if 0
|
||||
#include "ff.h"
|
||||
|
|
@ -49,11 +51,9 @@
|
|||
#include "accel.h"
|
||||
#include "timer.h"
|
||||
#include "pybwlan.h"
|
||||
#include "usrsw.h"
|
||||
#include "rtc.h"
|
||||
#include "file.h"
|
||||
#include "pin.h"
|
||||
#include "exti.h"
|
||||
#endif
|
||||
|
||||
void SystemClock_Config(void);
|
||||
|
|
@ -309,13 +309,13 @@ soft_reset:
|
|||
def_path[2] = MP_OBJ_NEW_QSTR(MP_QSTR_0_colon__slash_lib);
|
||||
sys_path = mp_obj_new_list(3, def_path);
|
||||
|
||||
#if 0
|
||||
exti_init();
|
||||
|
||||
#if MICROPY_HW_HAS_SWITCH
|
||||
switch_init();
|
||||
#endif
|
||||
|
||||
#if 0
|
||||
#if MICROPY_HW_HAS_LCD
|
||||
// LCD init (just creates class, init hardware by calling LCD())
|
||||
lcd_init();
|
||||
|
|
|
|||
|
|
@ -0,0 +1,227 @@
|
|||
#include <stdio.h>
|
||||
#include <stdint.h>
|
||||
#include <string.h>
|
||||
#include <stm32f4xx_hal.h>
|
||||
|
||||
#include "misc.h"
|
||||
#include "mpconfig.h"
|
||||
#include "qstr.h"
|
||||
#include "obj.h"
|
||||
#include "runtime.h"
|
||||
#include "nlr.h"
|
||||
#include "map.h"
|
||||
|
||||
#include "pin.h"
|
||||
|
||||
// Usage Model:
|
||||
//
|
||||
// All Board Pins are predefined as pyb.Pin.board.Name
|
||||
//
|
||||
// x1_pin = pyb.Pin.board.X1
|
||||
//
|
||||
// g = pyb.gpio(pyb.Pin.board.X1, 0)
|
||||
//
|
||||
// CPU pins which correspond to the board pins are available
|
||||
// as pyb.cpu.Name. For the CPU pins, the names are the port letter
|
||||
// followed by the pin number. On the PYBOARD4, pyb.Pin.board.X1 and
|
||||
// pyb.Pin.cpu.B6 are the same pin.
|
||||
//
|
||||
// You can also use strings:
|
||||
//
|
||||
// g = pyb.gpio('X1', 0)
|
||||
//
|
||||
// Users can add their own names:
|
||||
//
|
||||
// pyb.Pin("LeftMotorDir", pyb.Pin.cpu.C12)
|
||||
// g = pyb.gpio("LeftMotorDir", 0)
|
||||
//
|
||||
// and can query mappings
|
||||
//
|
||||
// pin = pyb.Pin("LeftMotorDir");
|
||||
//
|
||||
// Users can also add their own mapping function:
|
||||
//
|
||||
// def MyMapper(pin_name):
|
||||
// if pin_name == "LeftMotorDir":
|
||||
// return pyb.Pin.cpu.A0
|
||||
//
|
||||
// pyb.Pin.mapper(MyMapper)
|
||||
//
|
||||
// So, if you were to call: pyb.gpio("LeftMotorDir", 0)
|
||||
// then "LeftMotorDir" is passed directly to the mapper function.
|
||||
//
|
||||
// To summarize, the following order determines how things get mapped into
|
||||
// an ordinal pin number:
|
||||
//
|
||||
// 1 - Directly specify a pin object
|
||||
// 2 - User supplied mapping function
|
||||
// 3 - User supplied mapping (object must be usable as a dictionary key)
|
||||
// 4 - Supply a string which matches a board pin
|
||||
// 5 - Supply a string which matches a CPU port/pin
|
||||
//
|
||||
// You can set pyb.Pin.debug(True) to get some debug information about
|
||||
// how a particular object gets mapped to a pin.
|
||||
|
||||
static void pin_map_obj_print(void (*print)(void *env, const char *fmt, ...), void *env, mp_obj_t self_in, mp_print_kind_t kind) {
|
||||
(void)self_in;
|
||||
print(env, "<PinMap>");
|
||||
}
|
||||
|
||||
static mp_obj_t pin_map_call(mp_obj_t self_in, uint n_args, uint n_kw, const mp_obj_t *args) {
|
||||
pin_map_obj_t *self = self_in;
|
||||
rt_check_nargs(n_args, 1, 2, n_kw, false);
|
||||
|
||||
if (n_args > 1) {
|
||||
if (!self->map_dict) {
|
||||
self->map_dict = mp_obj_new_dict(1);
|
||||
}
|
||||
mp_obj_dict_store(self->map_dict, args[0], args[1]);
|
||||
return mp_const_none;
|
||||
}
|
||||
|
||||
// Run an argument through the mapper and return the result.
|
||||
return (mp_obj_t)pin_map_user_obj(args[0]);
|
||||
}
|
||||
|
||||
static mp_obj_t pin_map_obj_mapper(uint n_args, mp_obj_t *args) {
|
||||
pin_map_obj_t *self = args[0];
|
||||
if (n_args > 1) {
|
||||
self->mapper = args[1];
|
||||
return mp_const_none;
|
||||
}
|
||||
return self->mapper;
|
||||
}
|
||||
static MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pin_map_obj_mapper_obj, 1, 2, pin_map_obj_mapper);
|
||||
|
||||
static mp_obj_t pin_map_obj_debug(uint n_args, mp_obj_t *args) {
|
||||
pin_map_obj_t *self = args[0];
|
||||
if (n_args > 1) {
|
||||
self->debug = rt_is_true(args[1]);
|
||||
return mp_const_none;
|
||||
}
|
||||
return MP_BOOL(self->debug);
|
||||
}
|
||||
static MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pin_map_obj_debug_obj, 1, 2, pin_map_obj_debug);
|
||||
|
||||
static void pin_map_load_attr(mp_obj_t self_in, qstr attr_qstr, mp_obj_t *dest) {
|
||||
(void)self_in;
|
||||
const char *attr = qstr_str(attr_qstr);
|
||||
|
||||
if (strcmp(attr, "mapper") == 0) {
|
||||
dest[0] = (mp_obj_t)&pin_map_obj_mapper_obj;
|
||||
dest[1] = self_in;
|
||||
}
|
||||
if (strcmp(attr, "debug") == 0) {
|
||||
dest[0] = (mp_obj_t)&pin_map_obj_debug_obj;
|
||||
dest[1] = self_in;
|
||||
}
|
||||
if (strcmp(attr, pin_board_pins_obj.name) == 0) {
|
||||
dest[0] = (mp_obj_t)&pin_board_pins_obj;
|
||||
dest[1] = MP_OBJ_NULL;
|
||||
}
|
||||
if (strcmp(attr, pin_cpu_pins_obj.name) == 0) {
|
||||
dest[0] = (mp_obj_t)&pin_cpu_pins_obj;
|
||||
dest[1] = MP_OBJ_NULL;
|
||||
}
|
||||
}
|
||||
|
||||
static const mp_obj_type_t pin_map_obj_type = {
|
||||
{ &mp_type_type },
|
||||
.name = MP_QSTR_PinMap,
|
||||
.print = pin_map_obj_print,
|
||||
.call = pin_map_call,
|
||||
.load_attr = pin_map_load_attr,
|
||||
};
|
||||
|
||||
static const pin_map_obj_t pin_map_obj_init = {
|
||||
{ &pin_map_obj_type },
|
||||
.mapper = MP_OBJ_NULL,
|
||||
.map_dict = MP_OBJ_NULL,
|
||||
.debug = false,
|
||||
};
|
||||
|
||||
pin_map_obj_t pin_map_obj;
|
||||
|
||||
void pin_map_init(void) {
|
||||
pin_map_obj = pin_map_obj_init;
|
||||
}
|
||||
|
||||
// C API used to convert a user-supplied pin name into an ordinal pin number.
|
||||
const pin_obj_t *pin_map_user_obj(mp_obj_t user_obj) {
|
||||
const pin_obj_t *pin_obj;
|
||||
|
||||
// If a pin was provided, then use it
|
||||
if (MP_OBJ_IS_TYPE(user_obj, &pin_obj_type)) {
|
||||
pin_obj = user_obj;
|
||||
if (pin_map_obj.debug) {
|
||||
printf("Pin map passed pin ");
|
||||
mp_obj_print((mp_obj_t)pin_obj, PRINT_STR);
|
||||
printf("\n");
|
||||
}
|
||||
return pin_obj;
|
||||
}
|
||||
|
||||
if (pin_map_obj.mapper) {
|
||||
pin_obj = rt_call_function_1(pin_map_obj.mapper, user_obj);
|
||||
if (pin_obj != mp_const_none) {
|
||||
if (!MP_OBJ_IS_TYPE(pin_obj, &pin_obj_type)) {
|
||||
nlr_jump(mp_obj_new_exception_msg(&mp_type_ValueError, "Pin.mapper didn't return a Pin object"));
|
||||
}
|
||||
if (pin_map_obj.debug) {
|
||||
printf("Pin.mapper maps ");
|
||||
mp_obj_print(user_obj, PRINT_REPR);
|
||||
printf(" to ");
|
||||
mp_obj_print((mp_obj_t)pin_obj, PRINT_STR);
|
||||
printf("\n");
|
||||
}
|
||||
return pin_obj;
|
||||
}
|
||||
// The pin mapping function returned mp_const_none, fall through to
|
||||
// other lookup methods.
|
||||
}
|
||||
|
||||
if (pin_map_obj.map_dict) {
|
||||
mp_map_t *pin_map_map = mp_obj_dict_get_map(pin_map_obj.map_dict);
|
||||
mp_map_elem_t *elem = mp_map_lookup(pin_map_map, user_obj, MP_MAP_LOOKUP);
|
||||
if (elem != NULL && elem->value != NULL) {
|
||||
pin_obj = elem->value;
|
||||
if (pin_map_obj.debug) {
|
||||
printf("Pin.map_dict maps ");
|
||||
mp_obj_print(user_obj, PRINT_REPR);
|
||||
printf(" to ");
|
||||
mp_obj_print((mp_obj_t)pin_obj, PRINT_STR);
|
||||
printf("\n");
|
||||
}
|
||||
return pin_obj;
|
||||
}
|
||||
}
|
||||
|
||||
// See if the pin name matches a board pin
|
||||
const char *pin_name = mp_obj_str_get_str(user_obj);
|
||||
pin_obj = pin_find_named_pin(pin_board_pins, pin_name);
|
||||
if (pin_obj) {
|
||||
if (pin_map_obj.debug) {
|
||||
printf("Pin.board maps ");
|
||||
mp_obj_print(user_obj, PRINT_REPR);
|
||||
printf(" to ");
|
||||
mp_obj_print((mp_obj_t)pin_obj, PRINT_STR);
|
||||
printf("\n");
|
||||
}
|
||||
return pin_obj;
|
||||
}
|
||||
|
||||
// See if the pin name matches a cpu pin
|
||||
pin_obj = pin_find_named_pin(pin_cpu_pins, pin_name);
|
||||
if (pin_obj) {
|
||||
if (pin_map_obj.debug) {
|
||||
printf("Pin.cpu maps ");
|
||||
mp_obj_print(user_obj, PRINT_REPR);
|
||||
printf(" to ");
|
||||
mp_obj_print((mp_obj_t)pin_obj, PRINT_STR);
|
||||
printf("\n");
|
||||
}
|
||||
return pin_obj;
|
||||
}
|
||||
|
||||
nlr_jump(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "pin '%s' not a valid pin identifier", pin_name));
|
||||
}
|
||||
|
|
@ -0,0 +1,67 @@
|
|||
#include <stdio.h>
|
||||
#include <stdint.h>
|
||||
#include <string.h>
|
||||
#include <stm32f4xx_hal.h>
|
||||
|
||||
#include "misc.h"
|
||||
#include "mpconfig.h"
|
||||
#include "qstr.h"
|
||||
#include "obj.h"
|
||||
#include "runtime.h"
|
||||
|
||||
#include "pin.h"
|
||||
|
||||
static void pin_named_pins_obj_print(void (*print)(void *env, const char *fmt, ...), void *env, mp_obj_t self_in, mp_print_kind_t kind) {
|
||||
pin_named_pins_obj_t *self = self_in;
|
||||
print(env, "<Pin.%s>", self->name);
|
||||
}
|
||||
|
||||
static void pin_named_pins_obj_load_attr(mp_obj_t self_in, qstr attr_qstr, mp_obj_t *dest) {
|
||||
pin_named_pins_obj_t *self = self_in;
|
||||
const char *attr = qstr_str(attr_qstr);
|
||||
const pin_obj_t *pin = pin_find_named_pin(self->named_pins, attr);
|
||||
if (pin) {
|
||||
dest[0] = (mp_obj_t)pin;
|
||||
dest[1] = MP_OBJ_NULL;
|
||||
}
|
||||
}
|
||||
|
||||
static const mp_obj_type_t pin_named_pins_obj_type = {
|
||||
{ &mp_type_type },
|
||||
.name = MP_QSTR_PinNamed,
|
||||
.print = pin_named_pins_obj_print,
|
||||
.load_attr = pin_named_pins_obj_load_attr,
|
||||
};
|
||||
|
||||
const pin_named_pins_obj_t pin_board_pins_obj = {
|
||||
{ &pin_named_pins_obj_type },
|
||||
.name = "board",
|
||||
.named_pins = pin_board_pins,
|
||||
};
|
||||
|
||||
const pin_named_pins_obj_t pin_cpu_pins_obj = {
|
||||
{ &pin_named_pins_obj_type },
|
||||
.name = "cpu",
|
||||
.named_pins = pin_cpu_pins,
|
||||
};
|
||||
|
||||
const pin_obj_t *pin_find_named_pin(const pin_named_pin_t *named_pins, const char *name) {
|
||||
const pin_named_pin_t *named_pin = named_pins;
|
||||
while (named_pin->name) {
|
||||
if (!strcmp(name, named_pin->name)) {
|
||||
return named_pin->pin;
|
||||
}
|
||||
named_pin++;
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
const pin_af_obj_t *pin_find_af(const pin_obj_t *pin, uint8_t fn, uint8_t unit, uint8_t type) {
|
||||
const pin_af_obj_t *af = pin->af;
|
||||
for (int i = 0; i < pin->num_af; i++, af++) {
|
||||
if (af->fn == fn && af->unit == unit && af->type == type) {
|
||||
return af;
|
||||
}
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
|
@ -16,21 +16,21 @@
|
|||
#include "systick.h"
|
||||
#include "pyexec.h"
|
||||
#include "led.h"
|
||||
#include "gpio.h"
|
||||
#include "pin.h"
|
||||
#include "exti.h"
|
||||
#include "usrsw.h"
|
||||
#if 0
|
||||
#include "rtc.h"
|
||||
#include "servo.h"
|
||||
#include "storage.h"
|
||||
#include "usb.h"
|
||||
#include "usrsw.h"
|
||||
#include "sdcard.h"
|
||||
#include "accel.h"
|
||||
#include "i2c.h"
|
||||
#include "usart.h"
|
||||
#include "adc.h"
|
||||
#include "audio.h"
|
||||
#include "pin.h"
|
||||
#include "gpio.h"
|
||||
#include "exti.h"
|
||||
#endif
|
||||
#include "pybmodule.h"
|
||||
|
||||
|
|
@ -252,11 +252,13 @@ STATIC const mp_map_elem_t pyb_module_globals_table[] = {
|
|||
{ MP_OBJ_NEW_QSTR(MP_QSTR_servo), (mp_obj_t)&pyb_servo_set_obj },
|
||||
{ MP_OBJ_NEW_QSTR(MP_QSTR_Servo), (mp_obj_t)&pyb_Servo_obj },
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#if MICROPY_HW_HAS_SWITCH
|
||||
{ MP_OBJ_NEW_QSTR(MP_QSTR_switch), (mp_obj_t)&pyb_switch_obj },
|
||||
#endif
|
||||
|
||||
#if 0
|
||||
#if MICROPY_HW_HAS_SDCARD
|
||||
{ MP_OBJ_NEW_QSTR(MP_QSTR_SD), (mp_obj_t)&pyb_sdcard_obj },
|
||||
#endif
|
||||
|
|
@ -278,6 +280,7 @@ STATIC const mp_map_elem_t pyb_module_globals_table[] = {
|
|||
|
||||
#if MICROPY_HW_ENABLE_AUDIO
|
||||
{ MP_OBJ_NEW_QSTR(MP_QSTR_Audio), (mp_obj_t)&pyb_Audio_obj },
|
||||
#endif
|
||||
#endif
|
||||
|
||||
// pin mapper
|
||||
|
|
@ -287,15 +290,14 @@ STATIC const mp_map_elem_t pyb_module_globals_table[] = {
|
|||
{ MP_OBJ_NEW_QSTR(MP_QSTR_gpio), (mp_obj_t)&pyb_gpio_obj },
|
||||
{ MP_OBJ_NEW_QSTR(MP_QSTR_gpio_in), (mp_obj_t)&pyb_gpio_input_obj },
|
||||
{ MP_OBJ_NEW_QSTR(MP_QSTR_gpio_out), (mp_obj_t)&pyb_gpio_output_obj },
|
||||
{ MP_OBJ_NEW_QSTR(MP_QSTR_PULL_NONE), MP_OBJ_NEW_SMALL_INT(GPIO_PuPd_NOPULL) },
|
||||
{ MP_OBJ_NEW_QSTR(MP_QSTR_PULL_UP), MP_OBJ_NEW_SMALL_INT(GPIO_PuPd_UP) },
|
||||
{ MP_OBJ_NEW_QSTR(MP_QSTR_PULL_DOWN), MP_OBJ_NEW_SMALL_INT(GPIO_PuPd_DOWN) },
|
||||
{ MP_OBJ_NEW_QSTR(MP_QSTR_PUSH_PULL), MP_OBJ_NEW_SMALL_INT(GPIO_OType_PP) },
|
||||
{ MP_OBJ_NEW_QSTR(MP_QSTR_OPEN_DRAIN), MP_OBJ_NEW_SMALL_INT(GPIO_OType_OD) },
|
||||
{ MP_OBJ_NEW_QSTR(MP_QSTR_PULL_NONE), MP_OBJ_NEW_SMALL_INT(GPIO_NOPULL) },
|
||||
{ MP_OBJ_NEW_QSTR(MP_QSTR_PULL_UP), MP_OBJ_NEW_SMALL_INT(GPIO_PULLUP) },
|
||||
{ MP_OBJ_NEW_QSTR(MP_QSTR_PULL_DOWN), MP_OBJ_NEW_SMALL_INT(GPIO_PULLDOWN) },
|
||||
{ MP_OBJ_NEW_QSTR(MP_QSTR_PUSH_PULL), MP_OBJ_NEW_SMALL_INT(GPIO_MODE_OUTPUT_PP) },
|
||||
{ MP_OBJ_NEW_QSTR(MP_QSTR_OPEN_DRAIN), MP_OBJ_NEW_SMALL_INT(GPIO_MODE_OUTPUT_OD) },
|
||||
|
||||
// EXTI bindings
|
||||
{ MP_OBJ_NEW_QSTR(MP_QSTR_Exti), (mp_obj_t)&exti_obj_type },
|
||||
#endif
|
||||
};
|
||||
|
||||
STATIC const mp_map_t pyb_module_globals = {
|
||||
|
|
|
|||
|
|
@ -43,6 +43,12 @@
|
|||
#include "stm32f4xx_it.h"
|
||||
#include "stm32f4xx_hal.h"
|
||||
|
||||
#include "misc.h"
|
||||
#include "mpconfig.h"
|
||||
#include "qstr.h"
|
||||
#include "obj.h"
|
||||
#include "exti.h"
|
||||
|
||||
/** @addtogroup STM32F4xx_HAL_Examples
|
||||
* @{
|
||||
*/
|
||||
|
|
@ -256,13 +262,90 @@ void OTG_XX_WKUP_IRQHandler(void)
|
|||
{
|
||||
}*/
|
||||
|
||||
|
||||
/**
|
||||
* @}
|
||||
*/
|
||||
|
||||
/**
|
||||
* @}
|
||||
* @brief These functions handle the EXTI interrupt requests.
|
||||
* @param None
|
||||
* @retval None
|
||||
*/
|
||||
void EXTI0_IRQHandler(void) {
|
||||
Handle_EXTI_Irq(0);
|
||||
}
|
||||
|
||||
void EXTI1_IRQHandler(void) {
|
||||
Handle_EXTI_Irq(1);
|
||||
}
|
||||
|
||||
void EXTI2_IRQHandler(void) {
|
||||
Handle_EXTI_Irq(2);
|
||||
}
|
||||
|
||||
void EXTI3_IRQHandler(void) {
|
||||
Handle_EXTI_Irq(3);
|
||||
}
|
||||
|
||||
void EXTI4_IRQHandler(void) {
|
||||
Handle_EXTI_Irq(4);
|
||||
}
|
||||
|
||||
void EXTI9_5_IRQHandler(void) {
|
||||
Handle_EXTI_Irq(5);
|
||||
Handle_EXTI_Irq(6);
|
||||
Handle_EXTI_Irq(7);
|
||||
Handle_EXTI_Irq(8);
|
||||
Handle_EXTI_Irq(9);
|
||||
}
|
||||
|
||||
void EXTI15_10_IRQHandler(void) {
|
||||
Handle_EXTI_Irq(10);
|
||||
Handle_EXTI_Irq(11);
|
||||
Handle_EXTI_Irq(12);
|
||||
Handle_EXTI_Irq(13);
|
||||
Handle_EXTI_Irq(14);
|
||||
Handle_EXTI_Irq(15);
|
||||
|
||||
#if 0
|
||||
// for CC3000 support, needs to be re-written to use new EXTI code
|
||||
if (EXTI_GetITStatus(EXTI_Line14) != RESET) {
|
||||
led_toggle(PYB_LED_G2);
|
||||
/* these are needed for CC3000 support
|
||||
extern void SpiIntGPIOHandler(void);
|
||||
extern uint32_t exti14_enabled;
|
||||
extern uint32_t exti14_missed;
|
||||
//printf("-> EXTI14 en=%lu miss=%lu\n", exti14_enabled, exti14_missed);
|
||||
if (exti14_enabled) {
|
||||
exti14_missed = 0;
|
||||
SpiIntGPIOHandler(); // CC3000 interrupt
|
||||
} else {
|
||||
exti14_missed = 1;
|
||||
}
|
||||
*/
|
||||
EXTI_ClearITPendingBit(EXTI_Line14);
|
||||
//printf("<- EXTI14 done\n");
|
||||
}
|
||||
#endif
|
||||
}
|
||||
|
||||
void PVD_IRQHandler(void) {
|
||||
Handle_EXTI_Irq(EXTI_PVD_OUTPUT);
|
||||
}
|
||||
|
||||
void RTC_Alarm_IRQHandler(void) {
|
||||
Handle_EXTI_Irq(EXTI_RTC_ALARM);
|
||||
}
|
||||
|
||||
|
||||
#if defined(ETH) // The 407 has ETH, the 405 doesn't
|
||||
void ETH_WKUP_IRQHandler(void) {
|
||||
Handle_EXTI_Irq(EXTI_ETH_WAKEUP);
|
||||
}
|
||||
#endif
|
||||
|
||||
void TAMP_STAMP_IRQHandler(void) {
|
||||
Handle_EXTI_Irq(EXTI_RTC_TIMESTAMP);
|
||||
}
|
||||
|
||||
void RTC_WKUP_IRQHandler(void) {
|
||||
Handle_EXTI_Irq(EXTI_RTC_WAKEUP);
|
||||
}
|
||||
|
||||
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|
||||
|
|
|
|||
|
|
@ -0,0 +1,67 @@
|
|||
#include <stdio.h>
|
||||
#include <stm32f4xx_hal.h>
|
||||
|
||||
#include "misc.h"
|
||||
#include "mpconfig.h"
|
||||
#include "qstr.h"
|
||||
#include "obj.h"
|
||||
#include "runtime.h"
|
||||
#include "usrsw.h"
|
||||
|
||||
#include "exti.h"
|
||||
#include "gpio.h"
|
||||
#include "pin.h"
|
||||
#include "build/pins.h"
|
||||
|
||||
// Usage Model:
|
||||
//
|
||||
// pyb.switch() returns True if the user switch is pressed, False otherwise.
|
||||
//
|
||||
// pyb.switch(callback) will register a callback to be called when the user
|
||||
// switch is pressed.
|
||||
//
|
||||
// pyb.switch(None) will remove the callback.
|
||||
//
|
||||
// Example:
|
||||
//
|
||||
// def switch_pressed():
|
||||
// print("User Switch pressed")
|
||||
//
|
||||
// pyb.switch(switch_pressed)
|
||||
|
||||
static mp_obj_t switch_user_callback_obj;
|
||||
|
||||
static mp_obj_t switch_callback(mp_obj_t line) {
|
||||
if (switch_user_callback_obj != mp_const_none) {
|
||||
rt_call_function_0(switch_user_callback_obj);
|
||||
}
|
||||
return mp_const_none;
|
||||
}
|
||||
static MP_DEFINE_CONST_FUN_OBJ_1(switch_callback_obj, switch_callback);
|
||||
|
||||
void switch_init(void) {
|
||||
switch_user_callback_obj = mp_const_none;
|
||||
exti_register((mp_obj_t)&USRSW_PIN,
|
||||
MP_OBJ_NEW_SMALL_INT(USRSW_EXTI_MODE),
|
||||
MP_OBJ_NEW_SMALL_INT(USRSW_PULL),
|
||||
(mp_obj_t)&switch_callback_obj,
|
||||
NULL);
|
||||
}
|
||||
|
||||
int switch_get(void) {
|
||||
int val = ((USRSW_PIN.gpio->IDR & USRSW_PIN.pin_mask) != 0);
|
||||
return val == USRSW_PRESSED;
|
||||
}
|
||||
|
||||
/******************************************************************************/
|
||||
/* Micro Python bindings */
|
||||
|
||||
static mp_obj_t pyb_switch(uint n_args, mp_obj_t *args) {
|
||||
if (n_args == 0) {
|
||||
return switch_get() ? mp_const_true : mp_const_false;
|
||||
}
|
||||
switch_user_callback_obj = args[0];
|
||||
return mp_const_none;
|
||||
}
|
||||
|
||||
MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(pyb_switch_obj, 0, 1, pyb_switch);
|
||||
|
|
@ -0,0 +1,4 @@
|
|||
void switch_init(void);
|
||||
int switch_get(void);
|
||||
|
||||
MP_DECLARE_CONST_FUN_OBJ(pyb_switch_obj);
|
||||
Ładowanie…
Reference in New Issue