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Change timing scheduler to only run main timer once ADC is done

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This commit is contained in:
Ben V. Brown
2023-01-23 17:40:06 +11:00
parent 5faa092eb6
commit 5fe019f40b
2 changed files with 22 additions and 23 deletions
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15
source/Core/BSP/Pinecilv2/IRQ.cpp
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@@ -17,6 +17,7 @@ extern "C" {
#include "bl702_pwm.h"
#include "bl702_timer.h"
}
void start_PWM_output(void);
#define ADC_Filter_Smooth 4
history<uint16_t, ADC_Filter_Smooth> ADC_Vin;
@@ -24,6 +25,7 @@ history<uint16_t, ADC_Filter_Smooth> ADC_Temp;
history<uint16_t, ADC_Filter_Smooth> ADC_Tip;
void adc_fifo_irq(void) {
if (ADC_GetIntStatus(ADC_INT_FIFO_READY) == SET) {
start_PWM_output(); // Restart the tip PWM
// Read out all entries in the fifo
while (ADC_Get_FIFO_Count()) {
volatile uint32_t reading = ADC_Read_FIFO();
@@ -45,7 +47,6 @@ void adc_fifo_irq(void) {
break;
}
}
// unblock the PID controller thread
if (xTaskGetSchedulerState() != taskSCHEDULER_NOT_STARTED) {
BaseType_t xHigherPriorityTaskWoken = pdFALSE;
@@ -66,12 +67,10 @@ volatile uint16_t PWMSafetyTimer = 0;
volatile uint8_t pendingPWM = 0;
volatile bool lastPeriodWasFast = false;
// Timer 0 is used to co-ordinate the ADC and the output PWM
void timer0_comp0_callback(void) { ADC_Start(); }
void timer0_comp1_callback(void) { PWM_Channel_Disable(PWM_Channel); }
void timer0_comp2_callback(void) {
void start_PWM_output(void) {
TIMER_Enable(TIMER_CH0);
// This occurs at timer rollover, so if we want to turn on the output PWM; we do so
if (PWMSafetyTimer) {
PWMSafetyTimer--;
if (lastPeriodWasFast != fastPWM) {
@@ -95,6 +94,10 @@ void timer0_comp2_callback(void) {
}
}
// Timer 0 is used to co-ordinate the ADC and the output PWM
void timer0_comp0_callback(void) { ADC_Start(); }
void timer0_comp1_callback(void) { PWM_Channel_Disable(PWM_Channel); } // Trigged at end of output cycle; turn off the tip PWM
void switchToFastPWM(void) {
fastPWM = true;
totalPWM = powerPWM + tempMeasureTicks + holdoffTicks;

30
source/Core/BSP/Pinecilv2/Setup.cpp
View File

@@ -62,10 +62,10 @@ void hardware_init() {
setup_timer_scheduler();
setup_adc();
setup_pwm();
I2C_SetSclSync(I2C0_ID,1);
I2C_SetDeglitchCount(I2C0_ID,1); // Turn on de-glitch
//Note on I2C clock rate @ 100Khz the screen update == 20ms which is too long for USB-PD to work
//200kHz and above works
I2C_SetSclSync(I2C0_ID, 1);
I2C_SetDeglitchCount(I2C0_ID, 1); // Turn on de-glitch
// Note on I2C clock rate @ 100Khz the screen update == 20ms which is too long for USB-PD to work
// 200kHz and above works
I2C_ClockSet(I2C0_ID, 300000); // Sets clock to around 25 kHz less than set here
TIMER_SetCompValue(TIMER_CH0, TIMER_COMP_ID_1, 0);
}
@@ -139,32 +139,28 @@ void setup_timer_scheduler() {
TIMER_Disable(TIMER_CH0);
TIMER_CFG_Type cfg = {
TIMER_CH0, // Channel
TIMER_CLKSRC_32K, // Clock source
TIMER_PRELOAD_TRIG_COMP2, // Trigger
TIMER_COUNT_PRELOAD, // Counter mode
22, // Clock div
(uint16_t)(powerPWM + holdoffTicks), // CH0 compare (adc)
0, // CH1 compare (pwm out)
(uint16_t)(powerPWM + tempMeasureTicks + holdoffTicks), // CH2 comapre (total period)
0, // Preload
TIMER_CH0, // Channel
TIMER_CLKSRC_32K, // Clock source
TIMER_PRELOAD_TRIG_COMP0, // Trigger; reset after trigger 0
TIMER_COUNT_PRELOAD, // Counter mode
22, // Clock div
(uint16_t)(powerPWM + holdoffTicks), // CH0 compare (adc)
0, // CH1 compare (pwm out)
0, // CH2 compare not used
0, // Preload
};
TIMER_Init(&cfg);
Timer_Int_Callback_Install(TIMER_CH0, TIMER_INT_COMP_0, timer0_comp0_callback);
Timer_Int_Callback_Install(TIMER_CH0, TIMER_INT_COMP_1, timer0_comp1_callback);
Timer_Int_Callback_Install(TIMER_CH0, TIMER_INT_COMP_2, timer0_comp2_callback);
TIMER_ClearIntStatus(TIMER_CH0, TIMER_COMP_ID_0);
TIMER_ClearIntStatus(TIMER_CH0, TIMER_COMP_ID_1);
TIMER_ClearIntStatus(TIMER_CH0, TIMER_COMP_ID_2);
TIMER_IntMask(TIMER_CH0, TIMER_INT_COMP_0, UNMASK);
TIMER_IntMask(TIMER_CH0, TIMER_INT_COMP_1, UNMASK);
TIMER_IntMask(TIMER_CH0, TIMER_INT_COMP_2, UNMASK);
CPU_Interrupt_Enable(TIMER_CH0_IRQn);
TIMER_Enable(TIMER_CH0);
// switchToSlowPWM();
}
void setupFUSBIRQ() {