diff options
Diffstat (limited to 'stmhal/mphalport.c')
| -rw-r--r-- | stmhal/mphalport.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/stmhal/mphalport.c b/stmhal/mphalport.c index f392550b80..3bf993ec25 100644 --- a/stmhal/mphalport.c +++ b/stmhal/mphalport.c @@ -7,6 +7,8 @@ #include "usb.h" #include "uart.h" +bool mp_hal_ticks_cpu_enabled = false; + // this table converts from HAL_StatusTypeDef to POSIX errno const byte mp_hal_status_to_errno_table[4] = { [HAL_OK] = 0, @@ -71,6 +73,15 @@ void mp_hal_stdout_tx_strn_cooked(const char *str, size_t len) { } } +void mp_hal_ticks_cpu_enable(void) { + if (!mp_hal_ticks_cpu_enabled) { + CoreDebug->DEMCR |= CoreDebug_DEMCR_TRCENA_Msk; + DWT->CYCCNT = 0; + DWT->CTRL |= DWT_CTRL_CYCCNTENA_Msk; + mp_hal_ticks_cpu_enabled = true; + } +} + void mp_hal_gpio_clock_enable(GPIO_TypeDef *gpio) { if (0) { #ifdef __GPIOA_CLK_ENABLE |