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Retiming all the PWM's

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This commit is contained in:
Ben V. Brown
2021-09-14 21:48:37 +10:00
parent 159ae7a8e2
commit a57449ed0f
8 changed files with 71 additions and 102 deletions
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5
source/Core/BSP/Miniware/Setup.cpp
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@@ -326,7 +326,8 @@ static void MX_TIM2_Init(void) {
// These values give a rate of around 3.5 Hz for "fast" mode and 1.84 Hz for "slow"
htim2.Init.CounterMode = TIM_COUNTERMODE_UP;
// dummy value, will be reconfigured by BSPInit()
htim2.Init.Period = 255 + 17 * 2;
htim2.Init.Period = powerPWM + 14 * 2;
htim2.Init.ClockDivision = TIM_CLOCKDIVISION_DIV4; // 8 MHz (x2 APB1) before divide
htim2.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
htim2.Init.RepetitionCounter = 0;
@@ -344,7 +345,7 @@ static void MX_TIM2_Init(void) {
sConfigOC.OCMode = TIM_OCMODE_PWM1;
// dummy value, will be reconfigured by BSPInit() in the BSP.cpp
sConfigOC.Pulse = 255 + 13 * 2; // 13 -> Delay of 7 ms
sConfigOC.Pulse = powerPWM + 14; // 13 -> Delay of 7 ms
// 255 is the largest time period of the drive signal, and then offset ADC sample to be a bit delayed after this
/*
* It takes 4 milliseconds for output to be stable after PWM turns off.