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Powercore-V2.0
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first version of adc control over off time

This commit is contained in:
John-RackRobotics 2024-02-09 14:24:56 -08:00
parent 895234e20c
commit 80a4cf2e38
1 changed files with 36 additions and 2 deletions
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38
Powercore-V2.0 Firmware/main.c
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@ -2,16 +2,22 @@
#include "pico/stdlib.h"
#include "pico/time.h"
#include "hardware/pwm.h"
#include "hardware/adc.h"
#include "CC_Charger.h"
#include "pulse_generator.h"
//Pinout definitions
// digital definitions
#define CUT_nEN_PIN 0
// analog definitions
#define GPIO29_ADC3_PIN 29
#define GPIO29_ADC3_CHANNEL 3
//OUTPUT PULSE PARAMETERS (times in usecs)
#define OUTPUT_ON_TIME 20
#define OUTPUT_OFF_TIME 70
#define OUTPUT_OFF_TIME_MIN 64
#define OUTPUT_OFF_TIME_MAX 512
#define ISO_PULSE false
#define CAP_VOLTAGE_SETPOINT 70
@ -21,6 +27,28 @@
//Math stuff DO NOT EDIT
#define CAP_VOLTAGE_PWM_LEVEL CAP_VOLTAGE_SETPOINT * 303 / 48
// initiate GPIO pin 29, ADC channel 3
void gpio29_adc3_init() {
// initialize ADC
adc_init();
// make sure GPIO is high-impedance, no pull-ups
adc_gpio_init(GPIO29_ADC3_PIN);
}
// read ADC value from GPIO pin 29 channel 3, and return the value as a 16-bit +integer
uint16_t gpio29_adc3_read() {
// select ADC channel
adc_select_input(GPIO29_ADC3_CHANNEL);
// read ADC value
return adc_read();
}
bool cut_on_off_irq(repeating_timer_t *rt) {
if(short_tripped) {
@ -37,6 +65,10 @@ bool cut_on_off_irq(repeating_timer_t *rt) {
if(!gpio_get(CUT_nEN_PIN) && !cutting_enabled) {
cutting_enabled = true;
// read adc channel 3, and map value from OUTPUT_OFF_TIME_MIN to OUTPUT_OFF_TIME_MAX
uint16_t OUTPUT_OFF_TIME = gpio29_adc3_read() * (OUTPUT_OFF_TIME_MAX - OUTPUT_OFF_TIME_MIN) / 4095 + OUTPUT_OFF_TIME_MIN;
begin_output_pulses(OUTPUT_ON_TIME, OUTPUT_OFF_TIME, ISO_PULSE);
} else if(gpio_get(CUT_nEN_PIN)) {
@ -64,6 +96,8 @@ int main() {
sleep_ms(1000);
gpio29_adc3_init();
CC_Charger_init(CHARGER_CURRENT, CAP_VOLTAGE_PWM_LEVEL); //Setup the CC Charger Outputs
pulse_generator_init(70); //Setup Pulse generator