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Bootloader: LSE/RTC shenanigans, morse error codes, new LED color scheme (#293)

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* Bootloader: LSE and RTS shenanigans, LED control, morse code for LSE failure error.
* Bootloader: add errata fix for flash controller
* Bootloader: target spelling
This commit is contained in:
あく 2021-01-06 22:45:31 +03:00 committed by GitHub
parent f3fa7617c1
commit f070815535
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 63 additions and 9 deletions
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70
bootloader/targets/f4/target.c
View file

@ -7,6 +7,7 @@
#include <stm32wbxx_ll_rtc.h>
#include <stm32wbxx_ll_pwr.h>
#include <stm32wbxx_ll_gpio.h>
#include <stm32wbxx_hal_flash.h>
// Boot request enum
#define BOOT_REQUEST_NONE 0x00000000
@ -30,6 +31,38 @@
#define BOOT_USB_DP_PIN LL_GPIO_PIN_12
#define BOOT_USB_PIN (BOOT_USB_DM_PIN | BOOT_USB_DP_PIN)
void target_led_control(char* c) {
LL_GPIO_SetOutputPin(LED_RED_PORT, LED_RED_PIN);
LL_GPIO_SetOutputPin(LED_GREEN_PORT, LED_GREEN_PIN);
LL_GPIO_SetOutputPin(LED_BLUE_PORT, LED_BLUE_PIN);
do {
if(*c == 'R') {
LL_GPIO_ResetOutputPin(LED_RED_PORT, LED_RED_PIN);
} else if(*c == 'G') {
LL_GPIO_ResetOutputPin(LED_GREEN_PORT, LED_GREEN_PIN);
} else if(*c == 'B') {
LL_GPIO_ResetOutputPin(LED_BLUE_PORT, LED_BLUE_PIN);
} else if(*c == '.') {
LL_mDelay(125);
LL_GPIO_SetOutputPin(LED_RED_PORT, LED_RED_PIN);
LL_GPIO_SetOutputPin(LED_GREEN_PORT, LED_GREEN_PIN);
LL_GPIO_SetOutputPin(LED_BLUE_PORT, LED_BLUE_PIN);
LL_mDelay(125);
} else if(*c == '-') {
LL_mDelay(250);
LL_GPIO_SetOutputPin(LED_RED_PORT, LED_RED_PIN);
LL_GPIO_SetOutputPin(LED_GREEN_PORT, LED_GREEN_PIN);
LL_GPIO_SetOutputPin(LED_BLUE_PORT, LED_BLUE_PIN);
LL_mDelay(250);
} else if(*c == '|') {
LL_GPIO_SetOutputPin(LED_RED_PORT, LED_RED_PIN);
LL_GPIO_SetOutputPin(LED_GREEN_PORT, LED_GREEN_PIN);
LL_GPIO_SetOutputPin(LED_BLUE_PORT, LED_BLUE_PIN);
}
c++;
} while(*c != 0);
}
void clock_init() {
LL_Init1msTick(4000000);
LL_SetSystemCoreClock(4000000);
@ -56,19 +89,37 @@ void gpio_init() {
// LEDs
LL_GPIO_SetPinMode(LED_RED_PORT, LED_RED_PIN, LL_GPIO_MODE_OUTPUT);
LL_GPIO_SetPinOutputType(LED_RED_PORT, LED_RED_PIN, LL_GPIO_OUTPUT_OPENDRAIN);
LL_GPIO_SetOutputPin(LED_RED_PORT, LED_RED_PIN);
LL_GPIO_SetPinMode(LED_GREEN_PORT, LED_GREEN_PIN, LL_GPIO_MODE_OUTPUT);
LL_GPIO_SetPinOutputType(LED_GREEN_PORT, LED_GREEN_PIN, LL_GPIO_OUTPUT_OPENDRAIN);
LL_GPIO_SetOutputPin(LED_GREEN_PORT, LED_GREEN_PIN);
LL_GPIO_SetPinMode(LED_BLUE_PORT, LED_BLUE_PIN, LL_GPIO_MODE_OUTPUT);
LL_GPIO_SetPinOutputType(LED_BLUE_PORT, LED_BLUE_PIN, LL_GPIO_OUTPUT_OPENDRAIN);
LL_GPIO_SetOutputPin(LED_BLUE_PORT, LED_BLUE_PIN);
}
void rtc_init() {
LL_RCC_EnableRTC();
LL_APB2_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_RTCAPB);
// LSE and RTC
LL_PWR_EnableBkUpAccess();
if(!LL_RCC_LSE_IsReady()) {
// Try to start LSE normal way
LL_RCC_LSE_SetDriveCapability(LL_RCC_LSEDRIVE_MEDIUMLOW);
LL_RCC_LSE_Enable();
uint32_t c = 0;
while(!LL_RCC_LSE_IsReady() && c < 200) {
LL_mDelay(10);
c++;
}
// Plan B: reset backup domain
if(!LL_RCC_LSE_IsReady()) {
target_led_control("-R.R.R.");
LL_RCC_ForceBackupDomainReset();
LL_RCC_ReleaseBackupDomainReset();
NVIC_SystemReset();
}
// Set RTC domain clock to LSE
LL_RCC_SetRTCClockSource(LL_RCC_RTC_CLKSOURCE_LSE);
}
// Enable clocking
LL_RCC_EnableRTC();
LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_RTCAPB);
}
void lcd_backlight_on() {
@ -83,9 +134,12 @@ void usb_wire_reset() {
void target_init() {
clock_init();
rtc_init();
gpio_init();
rtc_init();
usb_wire_reset();
// Errata 2.2.9, Flash OPTVERR flag is always set after system reset
__HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_ALL_ERRORS);
}
int target_is_dfu_requested() {
@ -112,14 +166,14 @@ void target_switch(void* offset) {
}
void target_switch2dfu() {
LL_GPIO_ResetOutputPin(LED_BLUE_PORT, LED_BLUE_PIN);
target_led_control("B");
// Remap memory to system bootloader
LL_SYSCFG_SetRemapMemory(LL_SYSCFG_REMAP_SYSTEMFLASH);
target_switch(0x0);
}
void target_switch2os() {
LL_GPIO_ResetOutputPin(LED_RED_PORT, LED_RED_PIN);
target_led_control("G");
SCB->VTOR = BOOT_ADDRESS + OS_OFFSET;
target_switch((void*)(BOOT_ADDRESS + OS_OFFSET));
}

2
bootloader/targets/f4/target.mk
View file

@ -5,7 +5,7 @@ FW_ADDRESS = 0x08008000
OS_OFFSET = 0x00008000
FLASH_ADDRESS = 0x08000000
OPENOCD_OPTS = -f interface/stlink.cfg -c "transport select hla_swd" -f target/stm32wbx.cfg -c "init" -c "adapter speed 4000"
OPENOCD_OPTS = -f interface/stlink.cfg -c "transport select hla_swd" -f ../debug/stm32wbx.cfg -c "init"
BOOT_CFLAGS = -DBOOT_ADDRESS=$(BOOT_ADDRESS) -DFW_ADDRESS=$(FW_ADDRESS) -DOS_OFFSET=$(OS_OFFSET)
MCU_FLAGS = -mcpu=cortex-m4 -mthumb -mfpu=fpv4-sp-d16 -mfloat-abi=hard