131 lines
3.3 KiB
C
131 lines
3.3 KiB
C
/*
|
|
ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
|
|
#include "ch.h"
|
|
#include "hal.h"
|
|
#include "hal_adc.h"
|
|
|
|
#include "chprintf.h"
|
|
|
|
#define LED_GREEN_PIN 25U
|
|
|
|
#define ADC_CH0_PIN 26U
|
|
#define ADC_CH1_PIN 27U
|
|
#define ADC_CH2_PIN 28U
|
|
|
|
/*
|
|
* Green LED blinker thread, times are in milliseconds.
|
|
*/
|
|
static CH_SYS_CORE0_MEMORY THD_WORKING_AREA(waThread1, 128);
|
|
static THD_FUNCTION(Thread1, arg) {
|
|
|
|
(void)arg;
|
|
chRegSetThreadName("blinker");
|
|
while (true) {
|
|
chThdSleepMilliseconds(500);
|
|
palToggleLine(LED_GREEN_PIN);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Call back function which called when ADC is finished.
|
|
*/
|
|
void adc_end_callback(ADCDriver *adcp) {
|
|
(void)adcp;
|
|
//chprintf((BaseSequentialStream *)&SIOD0, "ADC end cb\r\n");
|
|
}
|
|
|
|
/*
|
|
* Call back function which called when ADC gives some error.
|
|
*/
|
|
void adc_error_callback(ADCDriver *adcp, adcerror_t err) {
|
|
(void)adcp;
|
|
chprintf((BaseSequentialStream *)&SIOD0, "error: %d\r\n", err);
|
|
}
|
|
|
|
/*
|
|
* Application entry point.
|
|
*/
|
|
int main(void) {
|
|
/*
|
|
* System initializations.
|
|
* - HAL initialization, this also initializes the configured device drivers
|
|
* and performs the board-specific initializations.
|
|
* - Kernel initialization, the main() function becomes a thread and the
|
|
* RTOS is active.
|
|
*/
|
|
halInit();
|
|
chSysInit();
|
|
|
|
/*
|
|
* Activates the UART0 SIO driver using the default configuration.
|
|
*/
|
|
sioStart(&SIOD0, NULL);
|
|
sioStartOperation(&SIOD0, NULL);
|
|
|
|
/*
|
|
* Setting up GPIOs.
|
|
*/
|
|
palSetLineMode(LED_GREEN_PIN, PAL_MODE_OUTPUT_PUSHPULL | PAL_RP_PAD_DRIVE12);
|
|
|
|
// Set pin to ADC.
|
|
palSetLineMode(ADC_CH0_PIN, PAL_MODE_INPUT_ANALOG);
|
|
|
|
/*
|
|
* Creates the blinker thread.
|
|
*/
|
|
chThdCreateStatic(waThread1, sizeof(waThread1), NORMALPRIO, Thread1, NULL);
|
|
|
|
const ADCConfig adcConfig = {
|
|
0, // div_int
|
|
0, // div_frac
|
|
false, // shift
|
|
};
|
|
|
|
const ADCConversionGroup adcConvGroup = {
|
|
false, // circular
|
|
2, // num_channels
|
|
&adc_end_callback, // end_cb
|
|
&adc_error_callback, // error_cb
|
|
RP_ADC_CH0 | RP_ADC_CH4, // channel_mask
|
|
};
|
|
|
|
adcStart(&ADCD1, &adcConfig);
|
|
|
|
/* Enable temperature sensor. */
|
|
adcRPEnableTS(&ADCD1);
|
|
|
|
adcsample_t buf[4] = {0, 0, 0, 0};
|
|
|
|
chprintf((BaseSequentialStream *)&SIOD0, "--\r\n");
|
|
chThdSleepMilliseconds(100);
|
|
adcStartConversion(&ADCD1, &adcConvGroup, (adcsample_t *)&buf, 2);
|
|
/*
|
|
* Normal main() thread activity, in this demo it does nothing except
|
|
* sleeping in a loop.
|
|
*/
|
|
while (true) {
|
|
chThdSleepMilliseconds(500);
|
|
chprintf((BaseSequentialStream *)&SIOD0, "buf: %d, %d, %d, %d\r\n", buf[0], buf[1], buf[2], buf[3]);
|
|
if (!adcConvGroup.circular) {
|
|
adcStartConversion(&ADCD1, &adcConvGroup, (adcsample_t *)&buf, 2);
|
|
}
|
|
}
|
|
}
|