From eefaedd59cccaeddcde8f54f89c98a26cc570e82 Mon Sep 17 00:00:00 2001
From: gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>
Date: Wed, 7 May 2014 10:44:43 +0000
Subject: git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@6920
 35acf78f-673a-0410-8e92-d51de3d6d3f4

---
 testhal/STM32/STM32F37x/SDADC/main.c | 165 +++++++++++++++++++++++++++++++++++
 1 file changed, 165 insertions(+)
 create mode 100644 testhal/STM32/STM32F37x/SDADC/main.c

(limited to 'testhal/STM32/STM32F37x/SDADC/main.c')

diff --git a/testhal/STM32/STM32F37x/SDADC/main.c b/testhal/STM32/STM32F37x/SDADC/main.c
new file mode 100644
index 000000000..6d5bd4383
--- /dev/null
+++ b/testhal/STM32/STM32F37x/SDADC/main.c
@@ -0,0 +1,165 @@
+/*
+    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   1
+#define ADC_GRP1_BUF_DEPTH      8
+
+#define ADC_GRP2_NUM_CHANNELS   1
+#define ADC_GRP2_BUF_DEPTH      32
+
+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;
+}
+
+/*
+ * SDADC configuration.
+ */
+static const ADCConfig sdadc_config = {
+  0,
+  {
+     SDADC_CONFR_GAIN_1X | SDADC_CONFR_SE_ZERO_VOLT | SDADC_CONFR_COMMON_VSSSD,
+     0,
+     0
+  }
+};
+
+/*
+ * ADC conversion group.
+ * Mode:        Linear buffer, 8 samples of 1 channel, SW triggered.
+ * Channels:    ADC_IN5P.
+ */
+static const ADCConversionGroup adcgrpcfg1 = {
+  FALSE,
+  ADC_GRP1_NUM_CHANNELS,
+  NULL,
+  adcerrorcallback,
+  .u.sdadc = {
+    SDADC_CR2_JSWSTART,     /* CR2      */
+    SDADC_JCHGR_CH(5),      /* JCHGR    */
+    {                       /* CONFCHR[2]*/
+      SDADC_CONFCHR1_CH5(0),
+      0
+    }
+  }
+};
+
+/*
+ * ADC conversion group.
+ * Mode:        Continuous, 32 samples of 1 channel, SW triggered.
+ * Channels:    ADC_IN5P.
+ */
+static const ADCConversionGroup adcgrpcfg2 = {
+  TRUE,
+  ADC_GRP2_NUM_CHANNELS,
+  adccallback,
+  adcerrorcallback,
+  .u.sdadc = {
+    SDADC_CR2_JSWSTART,     /* CR2      */
+    SDADC_JCHGR_CH(5),      /* JCHGR    */
+    {                       /* CONFCHR[2]*/
+      SDADC_CONFCHR1_CH5(0),
+      0
+    }
+  }
+};
+
+/*
+ * Red LEDs blinker thread, times are in milliseconds.
+ */
+static THD_WORKING_AREA(waThread1, 128);
+static THD_FUNCTION(Thread1, 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 SDADC1 driver.
+   */
+  adcStart(&SDADCD1, &sdadc_config);
+  adcSTM32Calibrate(&SDADCD1);
+
+  /*
+   * Linear conversion.
+   */
+  adcConvert(&SDADCD1, &adcgrpcfg1, samples1, ADC_GRP1_BUF_DEPTH);
+
+  /*
+   * Starts an ADC continuous conversion.
+   */
+  adcStartConversion(&SDADCD1, &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(&SDADCD1);
+    }
+    chThdSleepMilliseconds(500);
+  }
+}
-- 
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