From d51bace3bbd74a0ef12a7ade39abe3e4e4c248fc Mon Sep 17 00:00:00 2001
From: gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>
Date: Sun, 1 Aug 2010 16:26:58 +0000
Subject: git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@2112
 35acf78f-673a-0410-8e92-d51de3d6d3f4

---
 testhal/STM32/ADC/main.c | 131 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 131 insertions(+)
 create mode 100644 testhal/STM32/ADC/main.c

(limited to 'testhal/STM32/ADC/main.c')

diff --git a/testhal/STM32/ADC/main.c b/testhal/STM32/ADC/main.c
new file mode 100644
index 000000000..b5264130c
--- /dev/null
+++ b/testhal/STM32/ADC/main.c
@@ -0,0 +1,131 @@
+/*
+    ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 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"
+
+#define ADC_GRP1_NUM_CHANNELS   8
+#define ADC_GRP1_BUF_DEPTH      16
+
+/*
+ * ADC configuration, empty for STM32, nothing to configure.
+ */
+static const ADCConfig adccfg = {};
+
+/*
+ * ADC conversion group.
+ * Mode:        Streaming, continuous, 16 samples of 8 channels, SW triggered.
+ * Channels:    IN10, IN11, IN10, IN11, IN10, IN11, Sensor, VRef.
+ */
+static const ADCConversionGroup adcgrpcfg = {
+  TRUE,
+  ADC_GRP1_NUM_CHANNELS,
+  0,
+  ADC_CR2_EXTSEL_SWSTART | ADC_CR2_TSVREFE | ADC_CR2_CONT,
+  0,
+  0,
+  ADC_SQR1_NUM_CH(ADC_GRP1_NUM_CHANNELS),
+  ADC_SQR2_SQ7_N(ADC_CHANNEL_SENSOR) | ADC_SQR2_SQ6_N(ADC_CHANNEL_VREFINT),
+  ADC_SQR3_SQ5_N(ADC_CHANNEL_IN11)   | ADC_SQR3_SQ4_N(ADC_CHANNEL_IN10) |
+  ADC_SQR3_SQ3_N(ADC_CHANNEL_IN11)   | ADC_SQR3_SQ2_N(ADC_CHANNEL_IN10) |
+  ADC_SQR3_SQ1_N(ADC_CHANNEL_IN11)   | ADC_SQR3_SQ0_N(ADC_CHANNEL_IN10)
+};
+static adcsample_t samples[ADC_GRP1_NUM_CHANNELS * ADC_GRP1_BUF_DEPTH];
+static Thread *adctp;
+
+/*
+ * ADC streaming callback.
+ */
+size_t nx = 0, ny = 0;
+static void adccallback(adcsample_t *buffer, size_t n) {
+
+  if (samples == buffer) {
+    nx += n;
+  }
+  else {
+    ny += n;
+  }
+}
+
+/*
+ * ADC continuous conversion thread.
+ */
+static WORKING_AREA(adc_continuous_wa, 256);
+static msg_t adc_continuous_thread(void *p){
+
+  (void)p;
+  adcStart(&ADCD1, &adccfg);
+  adcStartConversion(&ADCD1, &adcgrpcfg, samples,
+                     ADC_GRP1_BUF_DEPTH, adccallback);
+  adcWaitConversion(&ADCD1, TIME_INFINITE);
+  adcStop(&ADCD1);
+  return 0;
+}
+
+/*
+ * Red LEDs blinker thread, times are in milliseconds.
+ */
+static WORKING_AREA(waThread1, 128);
+static msg_t Thread1(void *arg) {
+
+  (void)arg;
+  while (TRUE) {
+    palClearPad(IOPORT3, GPIOC_LED);
+    chThdSleepMilliseconds(500);
+    palSetPad(IOPORT3, GPIOC_LED);
+    chThdSleepMilliseconds(500);
+  }
+  return 0;
+}
+
+/*
+ * Entry point, note, the main() function is already a thread in the system
+ * on entry.
+ */
+int main(int argc, char **argv) {
+
+  (void)argc;
+  (void)argv;
+
+  /*
+   * Setting up analog inputs used by the demo.
+   */
+  palSetGroupMode(IOPORT3,
+                  PAL_PORT_BIT(0) | PAL_PORT_BIT(1),
+                  PAL_MODE_INPUT_ANALOG);
+
+  /*
+   * Creates the blinker thread.
+   */
+  chThdCreateStatic(waThread1, sizeof(waThread1), NORMALPRIO, Thread1, NULL);
+
+  /*
+   * Creates the ADC continuous conversion test thread.
+   */
+  adctp = chThdCreateStatic(adc_continuous_wa, sizeof(adc_continuous_wa),
+                            NORMALPRIO + 10, adc_continuous_thread, NULL);
+
+  /*
+   * Normal main() thread activity, in this demo it does nothing.
+   */
+  while (TRUE) {
+    chThdSleepMilliseconds(500);
+  }
+  return 0;
+}
-- 
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