From b94c000dd86448ce81f1a33fa41cc8a98207e1a9 Mon Sep 17 00:00:00 2001
From: Giovanni Di Sirio <gdisirio@gmail.com>
Date: Sun, 28 Feb 2016 12:47:21 +0000
Subject: Added more STM32L4xx demos.

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@8991 35acf78f-673a-0410-8e92-d51de3d6d3f4
---
 testhal/STM32/STM32L4xx/ADC/main.c | 167 +++++++++++++++++++++++++++++++++++++
 1 file changed, 167 insertions(+)
 create mode 100644 testhal/STM32/STM32L4xx/ADC/main.c

(limited to 'testhal/STM32/STM32L4xx/ADC/main.c')

diff --git a/testhal/STM32/STM32L4xx/ADC/main.c b/testhal/STM32/STM32L4xx/ADC/main.c
new file mode 100644
index 000000000..a7433e811
--- /dev/null
+++ b/testhal/STM32/STM32L4xx/ADC/main.c
@@ -0,0 +1,167 @@
+/*
+    ChibiOS - Copyright (C) 2006..2015 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, IN11.
+ * Notes:       IN1 = PC0, IN2 = PC1
+ */
+static const ADCConversionGroup adcgrpcfg1 = {
+  FALSE,
+  ADC_GRP1_NUM_CHANNELS,
+  NULL,
+  adcerrorcallback,
+  ADC_CFGR_CONT,            /* CFGR    */
+  ADC_TR(0, 4095),          /* TR1     */
+  {                         /* SMPR[2] */
+    0,
+    0
+  },
+  {                         /* SQR[4]  */
+    ADC_SQR1_SQ1_N(ADC_CHANNEL_IN1) | ADC_SQR1_SQ2_N(ADC_CHANNEL_IN2),
+    0,
+    0,
+    0
+  }
+};
+
+/*
+ * ADC conversion group.
+ * Mode:        Continuous, 16 samples of 8 channels, SW triggered.
+ * Channels:    IN5, IN6, IN5, IN6, IN5, IN6, Sensor, VBat/2.
+ * Notes:       IN5 = PA0, IN6 = PA1
+ */
+static const ADCConversionGroup adcgrpcfg2 = {
+  TRUE,
+  ADC_GRP2_NUM_CHANNELS,
+  adccallback,
+  adcerrorcallback,
+  ADC_CFGR_CONT,                    /* CFGR    */
+  ADC_TR(0, 4095),                  /* TR1     */
+  {                                 /* SMPR[2] */
+    ADC_SMPR1_SMP_AN5(ADC_SMPR_SMP_24P5)
+    | ADC_SMPR1_SMP_AN6(ADC_SMPR_SMP_24P5),
+    ADC_SMPR2_SMP_AN17(ADC_SMPR_SMP_47P5)
+    | ADC_SMPR2_SMP_AN18(ADC_SMPR_SMP_47P5),
+  },
+  {                                 /* SQR[4]  */
+    ADC_SQR1_SQ1_N(ADC_CHANNEL_IN5)  | ADC_SQR1_SQ2_N(ADC_CHANNEL_IN6) |
+    ADC_SQR1_SQ3_N(ADC_CHANNEL_IN5)  | ADC_SQR1_SQ4_N(ADC_CHANNEL_IN6),
+    ADC_SQR2_SQ5_N(ADC_CHANNEL_IN5)  | ADC_SQR2_SQ6_N(ADC_CHANNEL_IN6) |
+    ADC_SQR2_SQ7_N(ADC_CHANNEL_IN17) | ADC_SQR2_SQ8_N(ADC_CHANNEL_IN18),
+    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) {
+    palSetPad(GPIOA, GPIOA_LED_GREEN);
+    chThdSleepMilliseconds(500);
+    palClearPad(GPIOA, GPIOA_LED_GREEN);
+    chThdSleepMilliseconds(500);
+  }
+}
+
+/*
+ * 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 and the temperature sensor.
+   */
+  adcStart(&ADCD1, NULL);
+  adcSTM32EnableTS(&ADCD1);
+  adcSTM32EnableVBAT(&ADCD1);
+
+  /*
+   * 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(GPIOC, GPIOC_BUTTON)) {
+      adcStopConversion(&ADCD1);
+    }
+    chThdSleepMilliseconds(500);
+  }
+}
-- 
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