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stmhal: Add accelerometer driver; fix bug with LFN.

pull/356/head
Damien George 2014-03-20 23:33:30 +00:00
rodzic d02f6eaa10
commit f78d9b1a72
8 zmienionych plików z 179 dodań i 35 usunięć
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3
stmhal/Makefile
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@ -84,9 +84,9 @@ SRC_C = \
sdcard.c \
diskio.c \
lcd.c \
accel.c \
# servo.c \
# accel.c \
# timer.c \
# audio.c \
# i2c.c \
@ -104,6 +104,7 @@ SRC_HAL = $(addprefix $(HAL_DIR)/src/,\
stm32f4xx_hal_flash.c \
stm32f4xx_hal_flash_ex.c \
stm32f4xx_hal_gpio.c \
stm32f4xx_hal_i2c.c \
stm32f4xx_hal_pcd.c \
stm32f4xx_hal_rcc.c \
stm32f4xx_hal_rcc_ex.c \

137
stmhal/accel.c 100644
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@ -0,0 +1,137 @@
#include <stdio.h>
#include <string.h>
#include <stm32f4xx_hal.h>
#include "misc.h"
#include "mpconfig.h"
#include "qstr.h"
#include "obj.h"
#include "runtime.h"
#include "accel.h"
#define MMA_ADDR (0x98)
#define MMA_REG_MODE (7)
STATIC I2C_HandleTypeDef I2cHandle;
void accel_init(void) {
GPIO_InitTypeDef GPIO_InitStructure;
// PB5 is connected to AVDD; pull high to enable MMA accel device
GPIOB->BSRRH = GPIO_PIN_5; // turn off AVDD
GPIO_InitStructure.Pin = GPIO_PIN_5;
GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStructure.Speed = GPIO_SPEED_LOW;
GPIO_InitStructure.Pull = GPIO_NOPULL;
HAL_GPIO_Init(GPIOB, &GPIO_InitStructure);
// wait 20ms, then turn on AVDD, then wait 20ms again
HAL_Delay(20);
GPIOB->BSRRL = GPIO_PIN_5;
HAL_Delay(20);
// PB6=SCL, PB7=SDA
GPIO_InitStructure.Pin = GPIO_PIN_6 | GPIO_PIN_7;
GPIO_InitStructure.Mode = GPIO_MODE_AF_OD;
GPIO_InitStructure.Speed = GPIO_SPEED_FAST;
GPIO_InitStructure.Pull = GPIO_NOPULL; // have external pull-up resistors on both lines
GPIO_InitStructure.Alternate = GPIO_AF4_I2C1;
HAL_GPIO_Init(GPIOB, &GPIO_InitStructure);
// enable the I2C1 clock
__I2C1_CLK_ENABLE();
// set up the I2C1 device
memset(&I2cHandle, 0, sizeof(I2C_HandleTypeDef));
I2cHandle.Instance = I2C1;
I2cHandle.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
I2cHandle.Init.ClockSpeed = 400000;
I2cHandle.Init.DualAddressMode = I2C_DUALADDRESS_DISABLED;
I2cHandle.Init.DutyCycle = I2C_DUTYCYCLE_16_9;
I2cHandle.Init.GeneralCallMode = I2C_GENERALCALL_DISABLED;
I2cHandle.Init.NoStretchMode = I2C_NOSTRETCH_DISABLED;
I2cHandle.Init.OwnAddress1 = 0xfe; // unused
I2cHandle.Init.OwnAddress2 = 0xfe; // unused
if (HAL_I2C_Init(&I2cHandle) != HAL_OK) {
// init error
printf("accel_init: HAL_I2C_Init failed\n");
return;
}
HAL_StatusTypeDef status;
//printf("IsDeviceReady\n");
for (int i = 0; i < 10; i++) {
status = HAL_I2C_IsDeviceReady(&I2cHandle, MMA_ADDR, 10, 200);
//printf(" got %d\n", status);
if (status == HAL_OK) {
break;
}
}
//printf("MemWrite\n");
uint8_t data[1];
data[0] = 1; // active mode
status = HAL_I2C_Mem_Write(&I2cHandle, MMA_ADDR, MMA_REG_MODE, I2C_MEMADD_SIZE_8BIT, data, 1, 200);
//printf(" got %d\n", status);
}
/******************************************************************************/
/* Micro Python bindings */
int accel_buf[12];
mp_obj_t pyb_accel_read(void) {
for (int i = 0; i <= 6; i += 3) {
accel_buf[0 + i] = accel_buf[0 + i + 3];
accel_buf[1 + i] = accel_buf[1 + i + 3];
accel_buf[2 + i] = accel_buf[2 + i + 3];
}
uint8_t data_[4];
HAL_I2C_Mem_Read(&I2cHandle, MMA_ADDR, 0, I2C_MEMADD_SIZE_8BIT, data_, 4, 200);
accel_buf[9] = data_[0] & 0x3f; if (accel_buf[9] & 0x20) accel_buf[9] |= ~0x1f;
accel_buf[10] = data_[1] & 0x3f; if (accel_buf[10] & 0x20) accel_buf[10] |= ~0x1f;
accel_buf[11] = data_[2] & 0x3f; if (accel_buf[11] & 0x20) accel_buf[11] |= ~0x1f;
int jolt_info = data_[3];
mp_obj_t data[4];
data[0] = mp_obj_new_int(accel_buf[0] + accel_buf[3] + accel_buf[6] + accel_buf[9]);
data[1] = mp_obj_new_int(accel_buf[1] + accel_buf[4] + accel_buf[7] + accel_buf[10]);
data[2] = mp_obj_new_int(accel_buf[2] + accel_buf[5] + accel_buf[8] + accel_buf[11]);
data[3] = mp_obj_new_int(jolt_info);
return rt_build_tuple(4, data);
}
MP_DEFINE_CONST_FUN_OBJ_0(pyb_accel_read_obj, pyb_accel_read);
/*
mp_obj_t pyb_accel_read_all(void) {
mp_obj_t data[11];
accel_start(MMA_ADDR, 1);
accel_send_byte(0);
accel_restart(MMA_ADDR, 0);
for (int i = 0; i <= 9; i++) {
data[i] = mp_obj_new_int(accel_read_ack());
}
data[10] = mp_obj_new_int(accel_read_nack());
return rt_build_tuple(11, data);
}
MP_DEFINE_CONST_FUN_OBJ_0(pyb_accel_read_all_obj, pyb_accel_read_all);
mp_obj_t pyb_accel_write_mode(mp_obj_t o_int, mp_obj_t o_mode) {
accel_start(MMA_ADDR, 1);
accel_send_byte(6); // start at int
accel_send_byte(mp_obj_get_int(o_int));
accel_send_byte(mp_obj_get_int(o_mode));
accel_stop();
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_2(pyb_accel_write_mode_obj, pyb_accel_write_mode);
*/

11
stmhal/accel.h 100644
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@ -0,0 +1,11 @@
void accel_init(void);
void accel_restart(uint8_t addr, int write);
void accel_start(uint8_t addr, int write);
void accel_send_byte(uint8_t data);
uint8_t accel_read_ack(void);
uint8_t accel_read_nack(void);
void accel_stop(void);
MP_DECLARE_CONST_FUN_OBJ(pyb_accel_read_obj);
MP_DECLARE_CONST_FUN_OBJ(pyb_accel_read_all_obj);
MP_DECLARE_CONST_FUN_OBJ(pyb_accel_write_mode_obj);

9
stmhal/import.c
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@ -1,16 +1,18 @@
#include <stdio.h>
#include <stdint.h>
#include "misc.h"
#include "mpconfig.h"
#include "qstr.h"
#include "lexer.h"
#if 0
#include "ff.h"
#endif
mp_import_stat_t mp_import_stat(const char *path) {
#if 0
FILINFO fno;
#if _USE_LFN
fno.lfname = NULL;
fno.lfsize = 0;
#endif
FRESULT res = f_stat(path, &fno);
if (res == FR_OK) {
if ((fno.fattrib & AM_DIR) != 0) {
@ -19,6 +21,5 @@ mp_import_stat_t mp_import_stat(const char *path) {
return MP_IMPORT_STAT_FILE;
}
}
#endif
return MP_IMPORT_STAT_NO_EXIST;
}

8
stmhal/led.c
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@ -73,6 +73,14 @@ void led_toggle(pyb_led_t led) {
}
}
void led_debug(int n, int delay) {
led_state(1, n & 1);
led_state(2, n & 2);
led_state(3, n & 4);
led_state(4, n & 8);
HAL_Delay(delay);
}
/******************************************************************************/
/* Micro Python bindings */

1
stmhal/led.h
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@ -19,5 +19,6 @@ typedef enum {
void led_init(void);
void led_state(pyb_led_t led, int state);
void led_toggle(pyb_led_t led);
void led_debug(int value, int delay);
MP_DECLARE_CONST_FUN_OBJ(pyb_Led_obj);

37
stmhal/main.c
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@ -33,9 +33,9 @@
#include "sdcard.h"
#include "ff.h"
#include "lcd.h"
#include "accel.h"
#if 0
#include "servo.h"
#include "accel.h"
#include "timer.h"
#include "pybwlan.h"
#include "pin.h"
@ -170,22 +170,6 @@ int main(void) {
// enable the CCM RAM
__CCMDATARAMEN_CLK_ENABLE();
// some test code to flash LEDs
led_init();
led_state(0, 1);
led_state(1, 0);
led_state(2, 1);
#if 0
for (;;) {
HAL_Delay(500);
led_state(1, 1);
HAL_Delay(500);
led_state(1, 0);
}
#endif
#if 0
#if defined(NETDUINO_PLUS_2)
{
@ -348,6 +332,11 @@ soft_reset:
// make sure we have a /boot.py
{
FILINFO fno;
#if _USE_LFN
fno.lfname = NULL;
fno.lfsize = 0;
#endif
led_debug(0, 500);
FRESULT res = f_stat("0:/boot.py", &fno);
if (res == FR_OK) {
if (fno.fattrib & AM_DIR) {
@ -382,15 +371,6 @@ soft_reset:
flash_error(4);
}
if (first_soft_reset) {
#if 0
#if MICROPY_HW_HAS_MMA7660
// MMA accel: init and reset address to zero
accel_init();
#endif
#endif
}
// turn boot-up LED off
led_state(PYB_LED_GREEN, 0);
@ -419,6 +399,11 @@ soft_reset:
pyb_usb_dev_init(PYB_USB_DEV_VCP_MSC);
#endif
#if MICROPY_HW_HAS_MMA7660
// MMA accel: init and reset
accel_init();
#endif
// run main script
{
vstr_t *vstr = vstr_new();

8
stmhal/pybmodule.c
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@ -21,10 +21,10 @@
#include "usart.h"
#include "storage.h"
#include "sdcard.h"
#include "accel.h"
#if 0
#include "servo.h"
#include "usb.h"
#include "accel.h"
#include "i2c.h"
#include "adc.h"
#include "audio.h"
@ -256,13 +256,13 @@ STATIC const mp_map_elem_t pyb_module_globals_table[] = {
{ MP_OBJ_NEW_QSTR(MP_QSTR_SD), (mp_obj_t)&pyb_sdcard_obj },
#endif
#if 0
#if MICROPY_HW_HAS_MMA7660
{ MP_OBJ_NEW_QSTR(MP_QSTR_accel), (mp_obj_t)&pyb_accel_read_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_accel_read), (mp_obj_t)&pyb_accel_read_all_obj },
{ MP_OBJ_NEW_QSTR(MP_QSTR_accel_mode), (mp_obj_t)&pyb_accel_write_mode_obj },
//{ MP_OBJ_NEW_QSTR(MP_QSTR_accel_read), (mp_obj_t)&pyb_accel_read_all_obj },
//{ MP_OBJ_NEW_QSTR(MP_QSTR_accel_mode), (mp_obj_t)&pyb_accel_write_mode_obj },
#endif
#if 0
{ MP_OBJ_NEW_QSTR(MP_QSTR_hid), (mp_obj_t)&pyb_hid_send_report_obj },
#endif
{ MP_OBJ_NEW_QSTR(MP_QSTR_Led), (mp_obj_t)&pyb_Led_obj },