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/*
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
2011,2012,2013 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
ChibiOS/RT is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
ChibiOS/RT is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "ch.h"
#include "hal.h"
#include "adc_cfg.h"
static adcsample_t samples1[ADC_GRP1_NUM_CHANNELS * ADC_GRP1_BUF_DEPTH];
static adcsample_t samples2[ADC_GRP2_NUM_CHANNELS * ADC_GRP2_BUF_DEPTH];
/*
* ADC streaming callback.
*/
size_t nx = 0, ny = 0;
void adccallback(ADCDriver *adcp, adcsample_t *buffer, size_t n) {
(void)adcp;
if (samples2 == buffer) {
nx += n;
}
else {
ny += n;
}
}
/*
* ADC error callback.
*/
void adcerrorcallback(ADCDriver *adcp, adcerror_t err) {
(void)adcp;
(void)err;
palSetPad(PORT11, P11_LED4);
chSysHalt();
}
/*
* LED blinker thread, times are in milliseconds.
*/
static WORKING_AREA(waThread1, 128);
static msg_t Thread1(void *arg) {
(void)arg;
chRegSetThreadName("blinker");
while (TRUE) {
palSetPad(PORT11, P11_LED1);
chThdSleepMilliseconds(500);
palClearPad(PORT11, P11_LED1);
chThdSleepMilliseconds(500);
}
return 0;
}
/*
* 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();
/*
* Creates the blinker thread.
*/
chThdCreateStatic(waThread1, sizeof(waThread1), NORMALPRIO, Thread1, NULL);
/*
* Activates the ADC1, ADC3 drivers.
*/
adcStart(&ADCD1, NULL);
adcStart(&ADCD3, NULL);
/*
* Linear conversion.
*/
adcConvert(&ADCD1, &adcgrpcfg1, samples1, ADC_GRP1_BUF_DEPTH);
chThdSleepMilliseconds(1000);
/*
* Starts an ADC continuous conversion.
*/
adcStartConversion(&ADCD3, &adcgrpcfg2, samples2, ADC_GRP2_BUF_DEPTH);
/*
* Normal main() thread activity, once the button is pressed the ADC
* conversion is stopped.
*/
while (TRUE) {
if (palReadPad(PORT11, P11_BUTTON1)) {
adcStopConversion(&ADCD3);
}
chThdSleepMilliseconds(500);
}
}
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