diff options
| -rw-r--r-- | hw/bsp/stm32h7rs/family.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/hw/bsp/stm32h7rs/family.c b/hw/bsp/stm32h7rs/family.c index 1fbbd3cdb..4b81deea0 100644 --- a/hw/bsp/stm32h7rs/family.c +++ b/hw/bsp/stm32h7rs/family.c @@ -63,6 +63,10 @@ UART_HandleTypeDef UartHandle = { }; #endif +#ifndef SWO_FREQ +#define SWO_FREQ 4000000 +#endif + //--------------------------------------------------------------------+ // Forward USB interrupt events to TinyUSB IRQ Handler //--------------------------------------------------------------------+ @@ -97,6 +101,28 @@ void trace_etm_init(void) { #define trace_etm_init() #endif +#ifdef LOGGER_SWO +void log_swo_init(void) +{ + //UNLOCK FUNNEL + *(volatile uint32_t*)(0x5C004FB0) = 0xC5ACCE55; // SWTF_LAR + *(volatile uint32_t*)(0x5C003FB0) = 0xC5ACCE55; // SWO_LAR + + //SWO current output divisor register + //To change it, you can use the following rule + // value = (CPU_Freq / 3 / SWO_Freq) - 1 + *(volatile uint32_t*)(0x5C003010) = ((SystemCoreClock / 3 / SWO_FREQ) - 1); // SWO_CODR + + //SWO selected pin protocol register + *(volatile uint32_t*)(0x5C0030F0) = 0x00000002; // SWO_SPPR + + //Enable ITM input of SWO trace funnel + *(volatile uint32_t*)(0x5C004000) |= 0x00000001; // SWFT_CTRL +} +#else + #define log_swo_init() +#endif + void board_init(void) { HAL_Init(); @@ -117,6 +143,7 @@ void board_init(void) { __HAL_RCC_GPIOO_CLK_ENABLE(); __HAL_RCC_GPIOP_CLK_ENABLE(); + log_swo_init(); trace_etm_init(); for (uint8_t i = 0; i < TU_ARRAY_SIZE(board_pindef); i++) { |