diff --git a/src/platforms/stm32/stm32_can.ld b/src/platforms/stm32/stm32_can.ld new file mode 100644 index 0000000..86861b8 --- /dev/null +++ b/src/platforms/stm32/stm32_can.ld @@ -0,0 +1,28 @@ +/* + * This file is part of the libopenstm32 project. + * + * Copyright (C) 2010 Thomas Otto + * + * 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 . + */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x08000000, LENGTH = 256K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 64K +} + +/* Include the common ld script from libopenstm32. */ +INCLUDE libopencm3_stm32f1.ld diff --git a/src/platforms/stm32/usbdfu.c b/src/platforms/stm32/usbdfu.c index f809a2a..e33eddb 100644 --- a/src/platforms/stm32/usbdfu.c +++ b/src/platforms/stm32/usbdfu.c @@ -130,14 +130,26 @@ static char serial_no[9]; static const char *usb_strings[] = { "Black Sphere Technologies", -#if defined(DISCOVERY_STLINK) - "Black Magic (Upgrade) for STLink/Discovery", -#else +#if defined(BLACKMAGIC) "Black Magic Probe (Upgrade)", +#elif defined(DISCOVERY_STLINK) + "Black Magic (Upgrade) for STLink/Discovery", +#elif defined(STM32_CAN) + "Black Magic (Upgrade) for STM32_CAN", +#else +#warning "Unhandled board" #endif serial_no, /* This string is used by ST Microelectronics' DfuSe utility */ +#if defined(BLACKMAGIC) "@Internal Flash /0x08000000/8*001Ka,120*001Kg" +#elif defined(DISCOVERY_STLINK) + "@Internal Flash /0x08000000/8*001Ka,56*001Kg" +#elif defined(STM32_CAN) + "@Internal Flash /0x08000000/4*002Ka,124*002Kg" +#else +#warning "Unhandled board" +#endif }; static u8 usbdfu_getstatus(u32 *bwPollTimeout) @@ -190,6 +202,7 @@ usbdfu_getstatus_complete(usbd_device *dev, struct usb_setup_data *req) flash_erase_page(page_start); last_erased_pages = page_start; } + } case CMD_SETADDR: prog.addr = *(u32*)(prog.buf+1); @@ -295,6 +308,9 @@ int main(void) #if defined (DISCOVERY_STLINK) rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPCEN); if(!gpio_get(GPIOC, GPIO13)) { +#elif defined (STM32_CAN) + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN); + if(!gpio_get(GPIOA, GPIO0)) { #else rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPBEN); if(gpio_get(GPIOB, GPIO12)) { @@ -316,6 +332,8 @@ int main(void) FLASH_CR = 0; flash_erase_option_bytes(); flash_program_option_bytes(FLASH_OBP_RDP, FLASH_OBP_RDP_KEY); + /* CL Device: Protect 2 bits with (2 * 2k pages each)*/ + /* MD Device: Protect 2 bits with (4 * 1k pages each)*/ flash_program_option_bytes(FLASH_OBP_WRP10, 0x03FC); } @@ -332,13 +350,18 @@ int main(void) #endif rcc_clock_setup_in_hse_8mhz_out_72mhz(); - rcc_peripheral_enable_clock(&RCC_APB1ENR, RCC_APB1ENR_USBEN); rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN); #if defined(DISCOVERY_STLINK) gpio_set_mode(GPIOA, GPIO_MODE_INPUT, GPIO_CNF_INPUT_ANALOG, GPIO0); +#elif defined (STM32_CAN) + rcc_peripheral_enable_clock(&RCC_AHBENR, RCC_AHBENR_OTGFSEN); + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPBEN); + gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_2_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO0); #else + rcc_peripheral_enable_clock(&RCC_APB1ENR, RCC_APB1ENR_USBEN); gpio_set_mode(GPIOA, GPIO_MODE_INPUT, 0, GPIO8); gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_2_MHZ, @@ -353,8 +376,13 @@ int main(void) get_dev_unique_id(serial_no); +#if defined(STM32_CAN) + usbdev = usbd_init(&stm32f107_usb_driver, + &dev, &config, usb_strings, 4); +#else usbdev = usbd_init(&stm32f103_usb_driver, &dev, &config, usb_strings, 4); +#endif usbd_set_control_buffer_size(usbdev, sizeof(usbd_control_buffer)); usbd_register_control_callback(usbdev, USB_REQ_TYPE_CLASS | USB_REQ_TYPE_INTERFACE, @@ -401,6 +429,8 @@ void sys_tick_handler() gpio_set_mode(GPIOA, GPIO_MODE_INPUT, GPIO_CNF_INPUT_ANALOG, GPIO9); led2_state++; +#elif defined(STM32_CAN) + gpio_toggle(GPIOB, GPIO0); /* LED2 on/off */ #else gpio_toggle(GPIOB, GPIO11); /* LED2 on/off */ #endif diff --git a/src/platforms/stm32_can/Makefile.inc b/src/platforms/stm32_can/Makefile.inc new file mode 100644 index 0000000..6365ce1 --- /dev/null +++ b/src/platforms/stm32_can/Makefile.inc @@ -0,0 +1,35 @@ +CROSS_COMPILE ?= arm-none-eabi- +CC = $(CROSS_COMPILE)gcc +OBJCOPY = $(CROSS_COMPILE)objcopy + +CFLAGS += -Istm32/include -mcpu=cortex-m3 -mthumb \ + -DSTM32F1 -DSTM32_CAN -I../libopencm3/include + +LDFLAGS_BOOT = -lopencm3_stm32f1 -Wl,--defsym,_stack=0x20010000 \ + -Wl,-T,platforms/stm32/stm32_can.ld -nostartfiles -lc -lnosys \ + -Wl,-Map=mapfile -mthumb -mcpu=cortex-m3 -Wl,-gc-sections \ + -L../libopencm3/lib +LDFLAGS = $(LDFLAGS_BOOT) -Wl,-Ttext=0x8002000 + +VPATH += platforms/stm32 + +SRC += cdcacm.c \ + platform.c \ + usbuart.c \ + +all: blackmagic.bin blackmagic_dfu.bin blackmagic_dfu.hex + +blackmagic.bin: blackmagic + $(OBJCOPY) -O binary $^ $@ + +blackmagic_dfu: usbdfu.o + $(CC) $^ -o $@ $(LDFLAGS_BOOT) + +blackmagic_dfu.bin: blackmagic_dfu + $(OBJCOPY) -O binary $^ $@ + +blackmagic_dfu.hex: blackmagic_dfu + $(OBJCOPY) -O ihex $^ $@ + +host_clean: + -rm blackmagic.bin blackmagic_dfu blackmagic_dfu.bin blackmagic_dfu.hex diff --git a/src/platforms/stm32_can/platform.c b/src/platforms/stm32_can/platform.c new file mode 100644 index 0000000..e93d3be --- /dev/null +++ b/src/platforms/stm32_can/platform.c @@ -0,0 +1,197 @@ +/* + * 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 +#include +#include +#include +#include +#include +#include +#include + +#include "platform.h" +#include "jtag_scan.h" +#include + +#include + +uint8_t running_status; +volatile uint32_t timeout_counter; + +jmp_buf fatal_error_jmpbuf; + +static void morse_update(void); + +int platform_init(void) +{ + + /* Enable peripherals */ + rcc_peripheral_enable_clock(&RCC_AHBENR, RCC_AHBENR_OTGFSEN); + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN); + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPBEN); + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPCEN); + rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_AFIOEN); + + rcc_clock_setup_in_hse_8mhz_out_72mhz(); + /* Setup GPIO ports */ + gpio_set_mode(TMS_PORT, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, + TMS_PIN); + + gpio_set_mode(TCK_PORT, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, + TCK_PIN | TDI_PIN); + + gpio_set_mode(TCK_PORT, GPIO_MODE_INPUT, + GPIO_CNF_INPUT_FLOAT, + TDO_PIN); + + gpio_set_mode(LED_PORT, GPIO_MODE_OUTPUT_2_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, + LED_UART | LED_IDLE_RUN | LED_ERROR); + + /* Setup heartbeat timer */ + systick_set_clocksource(STK_CTRL_CLKSOURCE_AHB_DIV8); + systick_set_reload(900000); /* Interrupt us at 10 Hz */ + SCB_SHPR(11) &= ~((15 << 4) & 0xff); + SCB_SHPR(11) |= ((14 << 4) & 0xff); + systick_interrupt_enable(); + systick_counter_enable(); + + usbuart_init(); + + SCB_VTOR = 0x2000; // Relocate interrupt vector table here + + cdcacm_init(); + + jtag_scan(NULL); + + return 0; +} + +void platform_delay(uint32_t delay) +{ + timeout_counter = delay; + while(timeout_counter); +} + +void sys_tick_handler(void) +{ + if(running_status) + gpio_toggle(LED_PORT, LED_IDLE_RUN); + + if(timeout_counter) + timeout_counter--; + + morse_update(); +} + + +/* Morse code patterns and lengths */ +static const struct { + uint16_t code; + uint8_t bits; +} morse_letter[] = { + { 0b00011101, 8}, // 'A' .- + { 0b000101010111, 12}, // 'B' -... + { 0b00010111010111, 14}, // 'C' -.-. + { 0b0001010111, 10}, // 'D' -.. + { 0b0001, 4}, // 'E' . + { 0b000101110101, 12}, // 'F' ..-. + { 0b000101110111, 12}, // 'G' --. + { 0b0001010101, 10}, // 'H' .... + { 0b000101, 6}, // 'I' .. + {0b0001110111011101, 16}, // 'J' .--- + { 0b000111010111, 12}, // 'K' -.- + { 0b000101011101, 12}, // 'L' .-.. + { 0b0001110111, 10}, // 'M' -- + { 0b00010111, 8}, // 'N' -. + { 0b00011101110111, 14}, // 'O' --- + { 0b00010111011101, 14}, // 'P' .--. + {0b0001110101110111, 16}, // 'Q' --.- + { 0b0001011101, 10}, // 'R' .-. + { 0b00010101, 8}, // 'S' ... + { 0b000111, 6}, // 'T' - + { 0b0001110101, 10}, // 'U' ..- + { 0b000111010101, 12}, // 'V' ...- + { 0b000111011101, 12}, // 'W' .-- + { 0b00011101010111, 14}, // 'X' -..- + {0b0001110111010111, 16}, // 'Y' -.-- + { 0b00010101110111, 14}, // 'Z' --.. +}; + + +const char *morse_msg; +static const char * volatile morse_ptr; +static char morse_repeat; + +void morse(const char *msg, char repeat) +{ + morse_msg = morse_ptr = msg; + morse_repeat = repeat; + SET_ERROR_STATE(0); +} +static void morse_update(void) +{ + static uint16_t code; + static uint8_t bits; + + if(!morse_ptr) return; + + if(!bits) { + char c = *morse_ptr++; + if(!c) { + if(morse_repeat) { + morse_ptr = morse_msg; + c = *morse_ptr++; + } else { + morse_ptr = 0; + return; + } + } + if((c >= 'A') && (c <= 'Z')) { + c -= 'A'; + code = morse_letter[c].code; + bits = morse_letter[c].bits; + } else { + code = 0; bits = 4; + } + } + SET_ERROR_STATE(code & 1); + code >>= 1; bits--; +} + +const char *platform_target_voltage(void) +{ + return "ABSENT!"; + +} + +void assert_boot_pin(void) +{ + gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_2_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO0); + gpio_set(GPIOA, GPIO0); +} diff --git a/src/platforms/stm32_can/platform.h b/src/platforms/stm32_can/platform.h new file mode 100644 index 0000000..cf08b54 --- /dev/null +++ b/src/platforms/stm32_can/platform.h @@ -0,0 +1,180 @@ +/* + * 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. + */ +#ifndef __PLATFORM_H +#define __PLATFORM_H + +#include +#include + +#include +#include + +#include "gdb_packet.h" + +#define INLINE_GPIO +#define CDCACM_PACKET_SIZE 64 +/*#define PLATFORM_HAS_TRACESWO*/ + +extern usbd_device *usbdev; +#define CDCACM_GDB_ENDPOINT 1 +#define CDCACM_UART_ENDPOINT 3 + +/* Important pin mappings for STM32 implementation: + * + * LED0 = PB2 (Yellow LED : Running) + * LED1 = PB10 (Yellow LED : Idle) + * LED2 = PB11 (Red LED : Error) + * + * TPWR = RB0 (input) -- analogue on mini design ADC1, ch8 + * nTRST = PC9 + * SRST_OUT = NA + * TDI = PC12 + * TMS = PB14(input for SWDP) + * TCK = PC10 + * TDO = PC11(input) + * nSRST = PA7 (input) + * + * Force DFU mode button: PA0 Read High for Bootloader Req + */ + +/* Hardware definitions... */ +#define TDI_PORT GPIOC +#define TMS_PORT GPIOB +#define TCK_PORT GPIOC +#define TDO_PORT GPIOC +#define TDI_PIN GPIO12 +#define TMS_PIN GPIO14 +#define TCK_PIN GPIO10 +#define TDO_PIN GPIO11 + +#define SWDIO_PORT TMS_PORT +#define SWCLK_PORT TCK_PORT +#define SWDIO_PIN TMS_PIN +#define SWCLK_PIN TCK_PIN + +//#define TRST_PORT GPIOC +//#define TRST_PIN GPIO9 + +#define LED_PORT GPIOB +#define LED_PORT_UART GPIOB +#define LED_UART GPIO0 + +#define LED_IDLE_RUN GPIO1 +#define LED_ERROR GPIO12 + +#define USB_DRIVER stm32f107_usb_driver +#define USB_IRQ NVIC_OTG_FS_IRQ +#define USB_ISR otg_fs_isr +/* Interrupt priorities. Low numbers are high priority. + * For now USART1 preempts USB which may spin while buffer is drained. + * TIM3 is used for traceswo capture and must be highest priority. + */ +#define IRQ_PRI_USB (2 << 4) +#define IRQ_PRI_USBUSART (1 << 4) +#define IRQ_PRI_TIM3 (0 << 4) + +#define USBUSART USART2 +#define USBUSART_CR1 USART2_CR1 +#define USBUSART_IRQ NVIC_USART2_IRQ +#define USBUSART_APB_ENR RCC_APB1ENR +#define USBUSART_CLK_ENABLE RCC_APB1ENR_USART2EN +#define USBUSART_PORT GPIOA +#define USBUSART_TX_PIN GPIO2 +#define USBUSART_ISR usart2_isr + +#define DEBUG(...) + +extern uint8_t running_status; +extern volatile uint32_t timeout_counter; + +extern jmp_buf fatal_error_jmpbuf; + +extern const char *morse_msg; + +#define gpio_set_val(port, pin, val) do { \ + if(val) \ + gpio_set((port), (pin)); \ + else \ + gpio_clear((port), (pin)); \ +} while(0) + +#define SET_RUN_STATE(state) {running_status = (state);} +#define SET_IDLE_STATE(state) {gpio_set_val(LED_PORT, LED_IDLE_RUN, state);} +#define SET_ERROR_STATE(state) {gpio_set_val(LED_PORT, LED_ERROR, state);} + +#define PLATFORM_SET_FATAL_ERROR_RECOVERY() {setjmp(fatal_error_jmpbuf);} +#define PLATFORM_FATAL_ERROR(error) { \ + if(running_status) gdb_putpacketz("X1D"); \ + else gdb_putpacketz("EFF"); \ + running_status = 0; \ + target_list_free(); \ + morse("TARGET LOST.", 1); \ + longjmp(fatal_error_jmpbuf, (error)); \ +} + +int platform_init(void); +void morse(const char *msg, char repeat); +const char *platform_target_voltage(void); +int platform_hwversion(void); +void platform_delay(uint32_t delay); + +/* */ +void cdcacm_init(void); +/* Returns current usb configuration, or 0 if not configured. */ +int cdcacm_get_config(void); +int cdcacm_get_dtr(void); + +/* */ +void uart_usb_buf_drain(uint8_t ep); + +/* Use newlib provided integer only stdio functions */ +#define sscanf siscanf +#define sprintf siprintf +#define vasprintf vasiprintf + +#ifdef INLINE_GPIO +static inline void _gpio_set(u32 gpioport, u16 gpios) +{ + GPIO_BSRR(gpioport) = gpios; +} +#define gpio_set _gpio_set + +static inline void _gpio_clear(u32 gpioport, u16 gpios) +{ + GPIO_BRR(gpioport) = gpios; +} +#define gpio_clear _gpio_clear + +static inline u16 _gpio_get(u32 gpioport, u16 gpios) +{ + return (u16)GPIO_IDR(gpioport) & gpios; +} +#define gpio_get _gpio_get +#endif + +#endif + +#define disconnect_usb() usbd_disconnect(usbdev,1) +void assert_boot_pin(void); +#define setup_vbus_irq()