diff options
Diffstat (limited to 'project')
| -rw-r--r-- | project/Core/Src/Activties/activity13.c | 26 | ||||
| -rw-r--r-- | project/Core/Src/System/systick.c | 4 | ||||
| -rw-r--r-- | project/Core/Src/main.c | 3 |
3 files changed, 30 insertions, 3 deletions
diff --git a/project/Core/Src/Activties/activity13.c b/project/Core/Src/Activties/activity13.c new file mode 100644 index 0000000..19eb0a4 --- /dev/null +++ b/project/Core/Src/Activties/activity13.c @@ -0,0 +1,26 @@ +/* + * activity13.c + * + * Created on: Nov 18, 2025 + * Author: sowgro + */ +#include <stdint.h> +#include <stdio.h> +#include "systick.h" + +//write 1s for half the freq and 0s for the other half +void play_freq(uint8_t hz) { + uint32_t rollover =herz_to_systicks(hz); + int count = systick_get_count(); + if ((count % rollover) < (rollover >> 1)) + printf("1"); + else + printf("0"); +} + +void activity13_run() { + init_systick(); + for(;;) { + play_freq(1); + } +} diff --git a/project/Core/Src/System/systick.c b/project/Core/Src/System/systick.c index f9e2470..5d4d259 100644 --- a/project/Core/Src/System/systick.c +++ b/project/Core/Src/System/systick.c @@ -20,7 +20,7 @@ void init_systick() s->CSR &= ~1; s->CSR |= 1<<2; s->CSR |= 1<<1; // enable interrupt - s->RVR = 78124; // 100 ms + s->RVR = 79; s->CSR |= 1; } @@ -60,7 +60,7 @@ int check_systick() { static uint32_t count = 0; void SysTick_Handler() { - player_action_tick(count++); + count++; } uint32_t systick_get_count() { diff --git a/project/Core/Src/main.c b/project/Core/Src/main.c index eaf1c63..60d5b3d 100644 --- a/project/Core/Src/main.c +++ b/project/Core/Src/main.c @@ -29,6 +29,7 @@ int main(void){ // project_run(); // activity10_run(); // hw6_run(); - activity12_run(); +// activity12_run(); + activity13_run(); } |