/* * This file is part of the Black Magic Debug project. * * Copyright (C) 2011 Black Sphere Technologies Ltd. * Written by Gareth McMullin * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ /* This file implements the platform specific functions for the STM32 * implementation. */ #include "general.h" #include "cdcacm.h" #include "usbuart.h" #include "morse.h" #include #include #include #include #include #include #include jmp_buf fatal_error_jmpbuf; void platform_init(void) { /* Check the USER button*/ rcc_peripheral_enable_clock(&RCC_AHB1ENR, RCC_AHB1ENR_IOPAEN); if(gpio_get(GPIOA, GPIO0)) { platform_request_boot(); scb_reset_core(); } rcc_clock_setup_hse_3v3(&hse_8mhz_3v3[CLOCK_3V3_48MHZ]); /* Enable peripherals */ rcc_peripheral_enable_clock(&RCC_AHB2ENR, RCC_AHB2ENR_OTGFSEN); rcc_peripheral_enable_clock(&RCC_AHB1ENR, RCC_AHB1ENR_IOPCEN); rcc_peripheral_enable_clock(&RCC_AHB1ENR, RCC_AHB1ENR_IOPDEN); rcc_peripheral_enable_clock(&RCC_AHB1ENR, RCC_AHB1ENR_CRCEN); /* Set up USB Pins and alternate function*/ gpio_mode_setup(GPIOA, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO9 | GPIO11 | GPIO12); gpio_set_af(GPIOA, GPIO_AF10, GPIO9 | GPIO11 | GPIO12); GPIOC_OSPEEDR &=~0xF30; GPIOC_OSPEEDR |= 0xA20; gpio_mode_setup(JTAG_PORT, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, TMS_PIN | TCK_PIN | TDI_PIN); gpio_mode_setup(TDO_PORT, GPIO_MODE_INPUT, GPIO_PUPD_NONE, TDO_PIN); gpio_mode_setup(LED_PORT, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, LED_UART | LED_IDLE_RUN | LED_ERROR | LED_BOOTLOADER); platform_timing_init(); usbuart_init(); cdcacm_init(); } const char *platform_target_voltage(void) { return "ABSENT!"; } void platform_request_boot(void) { /* Disconnect USB cable */ usbd_disconnect(usbdev, 1); nvic_disable_irq(USB_IRQ); /* Assert blue LED as indicator we are in the bootloader */ rcc_peripheral_enable_clock(&RCC_AHB1ENR, RCC_AHB1ENR_IOPDEN); gpio_mode_setup(LED_PORT, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, LED_BOOTLOADER); gpio_set(LED_PORT, LED_BOOTLOADER); /* Jump to the built in bootloader by mapping System flash */ rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_SYSCFGEN); SYSCFG_MEMRM &= ~3; SYSCFG_MEMRM |= 1; }