From 7437bfef11387f1521f8c33e81885e186b583626 Mon Sep 17 00:00:00 2001
From: Theodore Ateba <tf.ateba@gmail.com>
Date: Wed, 16 Aug 2017 06:39:57 +0000
Subject: Add a specific directory for AVR MEGA in the testhal.

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@10436 35acf78f-673a-0410-8e92-d51de3d6d3f4
---
 testhal/AVR/MEGA/EXT/main.c | 97 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 97 insertions(+)
 create mode 100644 testhal/AVR/MEGA/EXT/main.c

(limited to 'testhal/AVR/MEGA/EXT/main.c')

diff --git a/testhal/AVR/MEGA/EXT/main.c b/testhal/AVR/MEGA/EXT/main.c
new file mode 100644
index 000000000..6aed40867
--- /dev/null
+++ b/testhal/AVR/MEGA/EXT/main.c
@@ -0,0 +1,97 @@
+/*
+    ChibiOS - Copyright (C) 2016 Theodore Ateba
+
+    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"
+#include "chprintf.h"
+
+/**
+ * @brief Global variables.
+ */
+BaseSequentialStream* chp = (BaseSequentialStream*) &SD1;
+static int isrCpt; /**< Interrupt counter. */
+
+/**
+ * @brief  This is the External Interruption 4 callback.
+ *         The onboard LED is toggled every time an interruption is
+ *         detected. A varible is also incremented.
+ */
+static void extcb(EXTDriver *extp, expchannel_t channel) {
+  (void)extp;
+  (void)channel;
+
+  chSysLockFromISR();
+  palTogglePad(IOPORT2, PORTB_LED1);
+  isrCpt++;
+  chSysUnlockFromISR();
+}
+
+/**
+ * @brief  EXT Driver configurations.
+ */
+static const EXTConfig extcfg = {
+  {
+    {EXT_CH_MODE_DISABLED , NULL},      /* INT0 Config. */
+    {EXT_CH_MODE_DISABLED , NULL},      /* INT1 Config. */
+    {EXT_CH_MODE_DISABLED , NULL},      /* INT2 Config. */
+    {EXT_CH_MODE_DISABLED , NULL},      /* INT3 Config. */
+    {EXT_CH_MODE_RISING_EDGE , extcb},  /* INT4 Config. */
+    {EXT_CH_MODE_DISABLED , NULL},      /* INT5 Config. */
+  }
+};
+
+/**
+ * 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();
+
+  /*
+   * External interrupt on the Pin D2 of the Arduino Mega2560.
+   */
+  palSetPadMode(IOPORT5, PE4, PAL_MODE_INPUT);  /* INT4 pin. */
+
+  /*
+   * Start the serial driver.
+   */
+  sdStart(&SD1, NULL);
+
+  /*
+   * Active the EXT driver 1 and select INT channel 4.
+   */
+  extStart(&EXTD1, &extcfg);
+  extChannelEnable(&EXTD1, INT4);
+
+  palClearPad(IOPORT2, PORTB_LED1);
+  chprintf(chp, "\n\r EXT hal test started...");
+
+  /*
+   * Normal main() thread activity, in this demo it print IRQ counter every
+   * seconde.
+   */
+  while (TRUE) {
+    chThdSleepMilliseconds(1000);
+    chprintf(chp, "\n\r External Interrupt counter: %d", isrCpt);
+  }
+}
-- 
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