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Disable SWD if PA13/PA14 are used for another purpose #52

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Merged
devanlai merged 1 commit into from
Jul 15, 2023
Merged

Disable SWD if PA13/PA14 are used for another purpose #52

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27 changes: 19 additions & 8 deletions src/stm32f103/target_stm32f103.c
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Original file line number Diff line number Diff line change
Expand Up @@ -77,15 +77,26 @@ void target_clock_setup(void) {

void target_gpio_setup(void) {
/* Enable GPIO clocks */
if (USES_GPIOA) {
rcc_periph_clock_enable(RCC_GPIOA);
}
if (USES_GPIOB) {
rcc_periph_clock_enable(RCC_GPIOB);
}
if (USES_GPIOC) {
rcc_periph_clock_enable(RCC_GPIOC);
#if USES_GPIOA
rcc_periph_clock_enable(RCC_GPIOA);
#endif
#if USES_GPIOB
rcc_periph_clock_enable(RCC_GPIOB);
#endif
#if USES_GPIOC
rcc_periph_clock_enable(RCC_GPIOC);
#endif

/* Disable SWD if PA13 and/or PA14 are used for another purpose */
#if ((HAVE_LED && LED_GPIO_PORT == GPIOA && (LED_GPIO_PORT == GPIO13 || LED_GPIO_PORT == GPIO14)) || \
(HAVE_BUTTON && BUTTON_GPIO_PORT == GPIOA && (BUTTON_GPIO_PIN == GPIO13 || BUTTON_GPIO_PIN == GPIO14)) || \
(HAVE_USB_PULLUP_CONTROL && USB_PULLUP_GPIO_PORT == GPIOA && \
(USB_PULLUP_GPIO_PIN == GPIO13 || USB_PULLUP_GPIO_PIN == GPIO14)))
{
rcc_periph_clock_enable(RCC_AFIO);
gpio_primary_remap(AFIO_MAPR_SWJ_CFG_JTAG_OFF_SW_OFF, 0);
}
#endif

/* Setup LEDs */
#if HAVE_LED
Expand Down