From 677d882bbb158cf471617b6f51bbaebc8397fea8 Mon Sep 17 00:00:00 2001
From: zaubentrucker <frederik.menke@rwth-aachen.de>
Date: Mon, 23 Dec 2024 14:07:54 +0100
Subject: [PATCH] Set proper prescaler and period for 100Hz

---
 red/mod-io2/src/main.cpp    | 7 ++++++-
 red/mod-io2/src/mod_io2.cpp | 6 +++---
 2 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/red/mod-io2/src/main.cpp b/red/mod-io2/src/main.cpp
index 318f72f..baa1c0a 100644
--- a/red/mod-io2/src/main.cpp
+++ b/red/mod-io2/src/main.cpp
@@ -1,3 +1,4 @@
+#include <cstdio>
 #if defined(CH32V00X)
 #include <ch32v00x.h>
 #elif defined(CH32V10X)
@@ -59,17 +60,21 @@ int main(void) {
 
 	MOD_IO2::Setup();
 
-	bool should_blink = true;
+	bool should_blink = false;
+	TIM_TimeBaseInitTypeDef TimerConfig;
 	while (1)
 	{
 		Wait_Ms(1000);
 
+		printf("sizeof(TimerConfig.TIM_Period): %lu \r\n", sizeof(TimerConfig.TIM_Period));
 		printf("-DEBUG-PR-%08x\r\n", i++);
 		if(should_blink) {
 			MOD_IO2::onRegisterSet(0x41);
 			MOD_IO2::onRegWrite(0x41, 0, 3);
 			// MOD_IO2::onRelayOn(0x40, 0, 0x03);
 		}
+		MOD_IO2::onRegisterSet(0x51);
+		MOD_IO2::onRegWrite(0x51, 0, 255);
 		Wait_Ms(1000);
 
 		printf("-DEBUG-PR-%08x\r\n", i++);
diff --git a/red/mod-io2/src/mod_io2.cpp b/red/mod-io2/src/mod_io2.cpp
index ba08214..87063a6 100644
--- a/red/mod-io2/src/mod_io2.cpp
+++ b/red/mod-io2/src/mod_io2.cpp
@@ -390,14 +390,14 @@ void MOD_IO2::PWMConfig(TIM_TypeDef *TIM, uint8_t channel, uint16_t pulse) {
 	TIM_CtrlPWMOutputs(TIM, DISABLE);
 
 	TIM_TimeBaseInitTypeDef TimerConfig;
- 	TimerConfig.TIM_Period = 255;
-	TimerConfig.TIM_Prescaler = 608;
+ 	TimerConfig.TIM_Period = 65535;
+	TimerConfig.TIM_Prescaler = 6;
 	TimerConfig.TIM_CounterMode = TIM_CounterMode_Up;
 	TimerConfig.TIM_ClockDivision = TIM_CKD_DIV1;	
 	TIM_TimeBaseInit(TIM, &TimerConfig);
 
 	TIM_OCInitTypeDef TIM_OCConfig={0};
-	TIM_OCConfig.TIM_Pulse = pulse;
+	TIM_OCConfig.TIM_Pulse = 6553;
 	TIM_OCConfig.TIM_OCMode = TIM_OCMode_PWM1;
 	TIM_OCConfig.TIM_OutputState = TIM_OutputState_Enable;
 	TIM_OCConfig.TIM_OCPolarity = TIM_OCPolarity_High;