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Current reading for ACK and overload on ESP32

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This commit is contained in:
Harald Barth 2022-08-02 21:49:16 +02:00
parent 6167a949b6
commit 33327d14c9
2 changed files with 36 additions and 2 deletions
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3
DCCWaveform.cpp
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@ -198,6 +198,7 @@ bool DCCWaveform::getPacketPending() {
#ifdef ARDUINO_ARCH_ESP32
#include "DCCWaveform.h"
#include "DCCACK.h"
DCCWaveform DCCWaveform::mainTrack(PREAMBLE_BITS_MAIN, true);
DCCWaveform DCCWaveform::progTrack(PREAMBLE_BITS_PROG, false);
@ -255,7 +256,7 @@ bool DCCWaveform::getPacketPending() {
else
return rmtProgChannel->busy();
}
void DCCWaveform::loop() {
void IRAM_ATTR DCCWaveform::loop() {
DCCACK::checkAck(progTrack.getResets());
}
#endif

35
MotorDriver.cpp
View File

@ -26,6 +26,24 @@
#include "DCCWaveform.h"
#include "DCCTimer.h"
#include "DIAG.h"
#if defined(ARDUINO_ARCH_ESP32)
#include <driver/adc.h>
#include <soc/sens_reg.h>
#include <soc/sens_struct.h>
#define pinToADC1Channel(X) (adc1_channel_t)(((X) > 35) ? (X)-36 : (X)-28)
int IRAM_ATTR local_adc1_get_raw(int channel) {
uint16_t adc_value;
SENS.sar_meas_start1.sar1_en_pad = (1 << channel); // only one channel is selected
while (SENS.sar_slave_addr1.meas_status != 0);
SENS.sar_meas_start1.meas1_start_sar = 0;
SENS.sar_meas_start1.meas1_start_sar = 1;
while (SENS.sar_meas_start1.meas1_done_sar == 0);
adc_value = SENS.sar_meas_start1.meas1_data_sar;
return adc_value;
}
#endif
bool MotorDriver::commonFaultPin=false;
@ -80,8 +98,16 @@ MotorDriver::MotorDriver(VPIN power_pin, byte signal_pin, byte signal_pin2, int8
currentPin=current_pin;
if (currentPin!=UNUSED_PIN) {
#ifdef ARDUINO_ARCH_ESP32
pinMode(currentPin, ANALOG);
adc1_config_width(ADC_WIDTH_BIT_12);
adc1_config_channel_atten(pinToADC1Channel(currentPin),ADC_ATTEN_DB_11);
senseOffset = adc1_get_raw(pinToADC1Channel(currentPin));
DIAG(F("senseOffset c=%d"), senseOffset);
#else
pinMode(currentPin, INPUT);
senseOffset=analogRead(currentPin); // value of sensor at zero current
#endif
}
faultPin=fault_pin;
@ -161,9 +187,13 @@ int MotorDriver::getCurrentRaw() {
// This function should NOT be called in an interruot so we
// dont need to fart about saving and restoring CPU specific
// interrupt registers.
#ifdef ARDUINO_ARCH_ESP32
current = local_adc1_get_raw(pinToADC1Channel(currentPin))-senseOffset;
#else
noInterrupts();
current = analogRead(currentPin)-senseOffset;
interrupts();
#endif
if (current<0) current=0-current;
if ((faultPin != UNUSED_PIN) && isLOW(fastFaultPin) && powerMode==POWERMODE::ON)
return (current == 0 ? -1 : -current);
@ -218,9 +248,12 @@ int MotorDriver::getCurrentRawInInterrupt() {
// IMPORTANT: This function must be called in Interrupt() time within the 56uS timer
// The default analogRead takes ~100uS which is catastrphic
// so DCCTimer has set the sample time to be much faster.
if (currentPin==UNUSED_PIN) return 0;
#ifdef ARDUINO_ARCH_ESP32 //On ESP we do all in loop() instead of in interrupt
return getCurrentRaw();
#else
return analogRead(currentPin)-senseOffset;
#endif
}
unsigned int MotorDriver::raw2mA( int raw) {