TIM4 runs at 96MHz, not 48MHz

2024-12-30 11:45:04 +01:00
parent 6d2a01d574
commit 943415dd2d
1 changed files with 2 additions and 2 deletions
--- a/src/timer.c
+++ b/src/timer.c
@@ -10,8 +10,8 @@ void tim4_init(void) {
  TIM4->CR2 = 0x0000;

  // Set prescaler
-  // f_clk = 48MHz -> /48000 = 1KHz counting frequency = 1ms
-  TIM4->PSC = (uint16_t) 48000 - 1;
+  // f_clk = 96MHz -> 96E6/96E3 = 1E3 = 1KHz counting frequency = 1ms
+  TIM4->PSC = (uint16_t) 96000 - 1;

  // Set ARR to maximum value to get 1ms between updates
  TIM4->ARR = (uint16_t) 0xFFFF;