diff options
Diffstat (limited to 'testhal/STM32F37x/ADC/main.c')
| -rw-r--r-- | testhal/STM32F37x/ADC/main.c | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/testhal/STM32F37x/ADC/main.c b/testhal/STM32F37x/ADC/main.c new file mode 100644 index 000000000..b9a481825 --- /dev/null +++ b/testhal/STM32F37x/ADC/main.c @@ -0,0 +1,172 @@ +/*
+ ChibiOS/RT - Copyright (C) 2006-2013 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 "ch.h"
+#include "hal.h"
+
+#define ADC_GRP1_NUM_CHANNELS 2
+#define ADC_GRP1_BUF_DEPTH 8
+
+#define ADC_GRP2_NUM_CHANNELS 8
+#define ADC_GRP2_BUF_DEPTH 16
+
+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;
+static void adccallback(ADCDriver *adcp, adcsample_t *buffer, size_t n) {
+
+ (void)adcp;
+ if (samples2 == buffer) {
+ nx += n;
+ }
+ else {
+ ny += n;
+ }
+}
+
+static void adcerrorcallback(ADCDriver *adcp, adcerror_t err) {
+
+ (void)adcp;
+ (void)err;
+}
+
+/*
+ * ADC conversion group.
+ * Mode: Linear buffer, 8 samples of 2 channels, SW triggered.
+ * Channels: IN1, IN9.
+ */
+static const ADCConversionGroup adcgrpcfg1 = {
+ FALSE,
+ ADC_GRP1_NUM_CHANNELS,
+ NULL,
+ adcerrorcallback,
+ .u.adc = {
+ 0, /* CR1 */
+ ADC_CR2_SWSTART, /* CR2 */
+ 0, /* LTR */
+ 0, /* HTR */
+ { /* SMPR[2] */
+ 0,
+ ADC_SMPR2_SMP_AN9(ADC_SAMPLE_41P5) | ADC_SMPR2_SMP_AN1(ADC_SAMPLE_41P5),
+ },
+ { /* SQR[3] */
+ 0,
+ 0,
+ ADC_SQR3_SQ2_N(ADC_CHANNEL_IN9) | ADC_SQR3_SQ1_N(ADC_CHANNEL_IN1)
+ }
+ }
+};
+
+/*
+ * ADC conversion group.
+ * Mode: Continuous, 16 samples of 8 channels, SW triggered.
+ * Channels: IN1, IN9, IN1, IN9, IN1, IN9, VBat, Sensor.
+ */
+static const ADCConversionGroup adcgrpcfg2 = {
+ TRUE,
+ ADC_GRP2_NUM_CHANNELS,
+ adccallback,
+ adcerrorcallback,
+ .u.adc = {
+ 0, /* CR1 */
+ ADC_CR2_SWSTART, /* CR2 */
+ 0, /* LTR */
+ 0, /* HTR */
+ { /* SMPR[2] */
+ ADC_SMPR1_SMP_SENSOR(ADC_SAMPLE_239P5) | ADC_SMPR1_SMP_VREF(ADC_SAMPLE_239P5),
+ ADC_SMPR2_SMP_AN9(ADC_SAMPLE_41P5) | ADC_SMPR2_SMP_AN1(ADC_SAMPLE_41P5)
+ },
+ { /* SQR[3] */
+ 0,
+ ADC_SQR2_SQ8_N(ADC_CHANNEL_SENSOR) | ADC_SQR2_SQ7_N(ADC_CHANNEL_VBAT),
+ ADC_SQR3_SQ6_N(ADC_CHANNEL_IN9) | ADC_SQR3_SQ5_N(ADC_CHANNEL_IN1) |
+ ADC_SQR3_SQ4_N(ADC_CHANNEL_IN9) | ADC_SQR3_SQ3_N(ADC_CHANNEL_IN1) |
+ ADC_SQR3_SQ2_N(ADC_CHANNEL_IN9) | ADC_SQR3_SQ1_N(ADC_CHANNEL_IN1)
+ }
+ }
+};
+
+/*
+ * Red LEDs blinker thread, times are in milliseconds.
+ */
+static WORKING_AREA(waThread1, 128);
+static msg_t Thread1(void *arg) {
+
+ (void)arg;
+ chRegSetThreadName("blinker");
+ while (TRUE) {
+ palClearPad(GPIOC, GPIOC_LED1);
+ chThdSleepMilliseconds(500);
+ palSetPad(GPIOC, GPIOC_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 driver, the temperature sensor and the VBat
+ * measurement.
+ */
+ adcStart(&ADCD1, NULL);
+ adcSTM32Calibrate(&ADCD1);
+ adcSTM32EnableTSVREFE();
+ adcSTM32EnableVBATE();
+
+ /*
+ * Linear conversion.
+ */
+ adcConvert(&ADCD1, &adcgrpcfg1, samples1, ADC_GRP1_BUF_DEPTH);
+ chThdSleepMilliseconds(1000);
+
+ /*
+ * Starts an ADC continuous conversion.
+ */
+ adcStartConversion(&ADCD1, &adcgrpcfg2, samples2, ADC_GRP2_BUF_DEPTH);
+
+ /*
+ * Normal main() thread activity, in this demo it does nothing.
+ */
+ while (TRUE) {
+ if (palReadPad(GPIOA, GPIOA_WKUP_BUTTON)) {
+ adcStopConversion(&ADCD1);
+ }
+ chThdSleepMilliseconds(500);
+ }
+}
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