kopia lustrzana https://github.com/micropython/micropython
141 wiersze
4.4 KiB
C
141 wiersze
4.4 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* Based on tinyusb/hw/bsp/teensy_40/teensy40.c
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2018, hathach (tinyusb.org)
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* Copyright (c) 2020, Jim Mussared
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "py/runtime.h"
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#include "tusb.h"
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#include "fsl_device_registers.h"
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#include "fsl_gpio.h"
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#include "fsl_iomuxc.h"
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#include "fsl_clock.h"
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#include "fsl_lpuart.h"
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#include CLOCK_CONFIG_H
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#include "modmachine.h"
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#include "irq.h"
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const uint8_t dcd_data[] = { 0x00 };
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void usb_phy0_init(uint8_t d_cal, uint8_t txcal45dp, uint8_t txcal45dn);
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void board_init(void) {
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// Clean and enable cache
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SCB_CleanDCache();
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SCB_EnableDCache();
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SCB_EnableICache();
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// Init clock
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BOARD_BootClockRUN();
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SystemCoreClockUpdate();
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// Enable IOCON clock
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CLOCK_EnableClock(kCLOCK_Iomuxc);
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// SDRAM
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#if MICROPY_HW_SDRAM_AVAIL
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mimxrt_sdram_init();
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#endif
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// 1ms tick timer
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SysTick_Config(SystemCoreClock / 1000);
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NVIC_SetPriority(SysTick_IRQn, IRQ_PRI_SYSTICK);
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// USB0
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usb_phy0_init(0b0111, 0b0110, 0b0110); // Configure nominal values for D_CAL and TXCAL45DP/DN
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// ADC
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machine_adc_init();
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// SDCard
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#if MICROPY_PY_MACHINE_SDCARD
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machine_sdcard_init0();
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#endif
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#if MICROPY_PY_MACHINE_I2S
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machine_i2s_init0();
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#endif
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// RTC
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machine_rtc_start();
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// OCRAM wait states (discarded, but code kept)
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#if 0
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MECC1->PIPE_ECC_EN =
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MECC_PIPE_ECC_EN_READ_DATA_WAIT_EN(1) |
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MECC_PIPE_ECC_EN_READ_ADDR_PIPE_EN(1) |
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MECC_PIPE_ECC_EN_WRITE_DATA_PIPE_EN(1) |
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MECC_PIPE_ECC_EN_WRITE_ADDR_PIPE_EN(1);
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MECC2->PIPE_ECC_EN =
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MECC_PIPE_ECC_EN_READ_DATA_WAIT_EN(1) |
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MECC_PIPE_ECC_EN_READ_ADDR_PIPE_EN(1) |
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MECC_PIPE_ECC_EN_WRITE_DATA_PIPE_EN(1) |
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MECC_PIPE_ECC_EN_WRITE_ADDR_PIPE_EN(1);
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FLEXRAM->FLEXRAM_CTRL =
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FLEXRAM_FLEXRAM_CTRL_OCRAM_RDATA_WAIT_EN(1) |
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FLEXRAM_FLEXRAM_CTRL_OCRAM_RADDR_PIPELINE_EN(1) |
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FLEXRAM_FLEXRAM_CTRL_OCRAM_WRDATA_PIPELINE_EN(1) |
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FLEXRAM_FLEXRAM_CTRL_OCRAM_WRADDR_PIPELINE_EN(1);
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#endif
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}
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void usb_phy0_init(uint8_t d_cal, uint8_t txcal45dp, uint8_t txcal45dn) {
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#ifdef USBPHY1
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USBPHY_Type *usb_phy = USBPHY1;
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#else
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USBPHY_Type *usb_phy = USBPHY;
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#endif
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CLOCK_EnableUsbhs0PhyPllClock(kCLOCK_Usbphy480M, BOARD_XTAL0_CLK_HZ);
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CLOCK_EnableUsbhs0Clock(kCLOCK_Usb480M, BOARD_XTAL0_CLK_HZ);
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#if defined(MIMXRT117x_SERIES)
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usb_phy->TRIM_OVERRIDE_EN = USBPHY_TRIM_OVERRIDE_EN_TRIM_DIV_SEL_OVERRIDE(1) |
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USBPHY_TRIM_OVERRIDE_EN_TRIM_ENV_TAIL_ADJ_VD_OVERRIDE(1) |
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USBPHY_TRIM_OVERRIDE_EN_TRIM_TX_D_CAL_OVERRIDE(1) |
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USBPHY_TRIM_OVERRIDE_EN_TRIM_TX_CAL45DP_OVERRIDE(1) |
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USBPHY_TRIM_OVERRIDE_EN_TRIM_TX_CAL45DN_OVERRIDE(1); // Enable override for D_CAL and TXCAL45DP/DN
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#endif
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usb_phy->PWD = 0U; // Set all bits in PWD register to normal operation
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usb_phy->TX = ((usb_phy->TX & (~(USBPHY_TX_D_CAL_MASK | USBPHY_TX_TXCAL45DM_MASK | USBPHY_TX_TXCAL45DP_MASK))) |
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(USBPHY_TX_D_CAL(d_cal) | USBPHY_TX_TXCAL45DP(txcal45dp) | USBPHY_TX_TXCAL45DM(txcal45dn))); // Configure values for D_CAL and TXCAL45DP/DN
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}
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void USB_OTG1_IRQHandler(void) {
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tud_int_handler(0);
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tud_task();
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__SEV();
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}
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void USB_OTG2_IRQHandler(void) {
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tud_int_handler(1);
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tud_task();
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__SEV();
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}
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