1 files changed, 124 insertions, 0 deletions

diff --git a/lib/chibios-contrib/testhal/NRF51/NRF51822/GPT/main.c b/lib/chibios-contrib/testhal/NRF51/NRF51822/GPT/main.c
new file mode 100644
index 000000000..bda2b188c
--- /dev/null
+++ b/lib/chibios-contrib/testhal/NRF51/NRF51822/GPT/main.c
@@ -0,0 +1,124 @@
+/*
+    Copyright (C) 2015 Stephen Caudle
+
+    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"
+
+/*
+ * GPT callback for GPTD2.
+ */
+static void gptcallback1(GPTDriver *gptp) {
+
+  (void)gptp;
+  palTogglePad(IOPORT1, LED1);
+
+  /*
+   * Start a one-shot timer (@ 250ms)
+   */
+  chSysLockFromISR();
+  gptStartOneShotI(&GPTD3, 15625);
+  chSysUnlockFromISR();
+}
+
+/*
+ * GPT callback for GPTD3.
+ */
+static void gptcallback2(GPTDriver *gptp) {
+
+  (void)gptp;
+  palTogglePad(IOPORT1, LED2);
+}
+
+/*
+ * GPT configuration
+ * Frequency: 31250Hz (32us period)
+ * Resolution: 16 bits
+ */
+static const GPTConfig gptcfg1 = {
+  31250,
+  gptcallback1,
+  16,
+};
+
+/*
+ * GPT configuration
+ * Frequency: 62500Hz (16us period)
+ * Resolution: 16 bits
+ */
+static const GPTConfig gptcfg2 = {
+  62500,
+  gptcallback2,
+  16,
+};
+
+/*
+ * LED blinker thread, times are in milliseconds.
+ */
+static THD_WORKING_AREA(waThread1, 128);
+static THD_FUNCTION(Thread1, arg) {
+
+  (void)arg;
+  chRegSetThreadName("blinker");
+  while (true) {
+    palTogglePad(IOPORT1, LED0);
+    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);
+
+  /*
+   * Sets up the GPT timers
+   */
+  gptStart(&GPTD2, &gptcfg1);
+  gptStart(&GPTD3, &gptcfg2);
+
+  /*
+   * Start a continuous timer
+   */
+  gptStartContinuous(&GPTD2, 15625);
+
+  /*
+   * Normal main() thread activity, in this demo it does nothing.
+   */
+  while (true) {
+    if (palReadPad(IOPORT1, KEY1) == 0) {
+      gptStopTimer(&GPTD2);
+      gptStop(&GPTD2);
+      gptStopTimer(&GPTD3);
+      gptStop(&GPTD3);
+    }
+    chThdSleepMilliseconds(500);
+  }
+}