From ad4879051e7498324fe220e972de35e35b6cc473 Mon Sep 17 00:00:00 2001
From: gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>
Date: Sat, 7 Aug 2010 08:21:19 +0000
Subject: STM32 PWM demo added.

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@2116 35acf78f-673a-0410-8e92-d51de3d6d3f4
---
 testhal/STM32/PWM/main.c | 104 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 104 insertions(+)
 create mode 100644 testhal/STM32/PWM/main.c

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

diff --git a/testhal/STM32/PWM/main.c b/testhal/STM32/PWM/main.c
new file mode 100644
index 000000000..9ab01a793
--- /dev/null
+++ b/testhal/STM32/PWM/main.c
@@ -0,0 +1,104 @@
+/*
+    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"
+
+/*
+ * 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;
+}
+
+static void pwmpcb(void) {
+}
+
+static void pwmc1cb(void) {
+}
+
+static PWMConfig pwmcfg = {
+  pwmpcb,
+  {
+   {PWM_OUTPUT_ACTIVE_HIGH, pwmc1cb},
+   {PWM_OUTPUT_DISABLED, NULL},
+   {PWM_OUTPUT_DISABLED, NULL},
+   {PWM_OUTPUT_DISABLED, NULL}
+  },
+  (uint16_t)(STM32_TIMCLK2 / 10000 - 1),    /* 100 uS clock.*/
+  (uint16_t)(10000 - 1),                    /* Period 1S.*/
+  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;
+
+  /*
+   * Creates the blinker thread.
+   */
+  chThdCreateStatic(waThread1, sizeof(waThread1), NORMALPRIO, Thread1, NULL);
+
+  /*
+   * Initializes the PWM driver 1.
+   */
+  pwmStart(&PWMD1, &pwmcfg);
+  palSetPadMode(IOPORT1, 8, PAL_MODE_STM32_ALTERNATE_PUSHPULL);
+  chThdSleepMilliseconds(2000);
+
+  /*
+   * Starts the channel 0 with 50% duty cycle.
+   */
+  pwmEnableChannel(&PWMD1, 0, 4999); /* 50% */
+  chThdSleepMilliseconds(5000);
+
+  /*
+   * Changes the channel 0 with 75% duty cycle.
+   */
+  pwmEnableChannel(&PWMD1, 0, 7499); /* 75% */
+  chThdSleepMilliseconds(5000);
+
+  /*
+   * Disables channel 0.
+   */
+  pwmDisableChannel(&PWMD1, 0);
+
+
+  /*
+   * Normal main() thread activity, in this demo it does nothing.
+   */
+  while (TRUE) {
+    chThdSleepMilliseconds(500);
+  }
+  return 0;
+}
-- 
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