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-rw-r--r--testhal/NRF51/NRF51822/PAL/main.c117
1 files changed, 117 insertions, 0 deletions
diff --git a/testhal/NRF51/NRF51822/PAL/main.c b/testhal/NRF51/NRF51822/PAL/main.c
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+/*
+ 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"
+
+#ifndef DEBOUNCE_TIME
+#define DEBOUNCE_TIME 100
+#endif
+
+static virtual_timer_t vt1;
+static virtual_timer_t vt2;
+static bool debouncing1;
+static bool debouncing2;
+
+/* LED1 toggled after debounce.*/
+static void led1toggle(void *arg) {
+
+ (void)arg;
+ palTogglePad(IOPORT1, LED1);
+ debouncing1 = false;
+}
+
+/* LED2 toggled after debounce.*/
+static void led2toggle(void *arg) {
+
+ (void)arg;
+ palTogglePad(IOPORT1, LED2);
+ debouncing2 = false;
+}
+
+static void extcb1(void *arg)
+{
+ (void)arg;
+ uint8_t pad1 = palReadPad(IOPORT1, KEY1);
+
+ if (!debouncing1 && (pad1 == PAL_LOW)) {
+ debouncing1 = true;
+ chSysLockFromISR();
+ chVTSetI(&vt1, TIME_MS2I(DEBOUNCE_TIME), led1toggle, NULL);
+ chSysUnlockFromISR();
+ } else if (debouncing1 && (pad1 == PAL_HIGH)) {
+ chSysLockFromISR();
+ if (chVTIsArmedI(&vt1))
+ chVTResetI(&vt1);
+ chSysUnlockFromISR();
+ debouncing1 = false;
+ }
+}
+
+static void extcb2(void *arg)
+{
+ (void)arg;
+ uint8_t pad2 = palReadPad(IOPORT1, KEY2);
+
+ if (!debouncing2 && (pad2 == PAL_LOW)) {
+ debouncing2 = true;
+ chSysLockFromISR();
+ chVTSetI(&vt2, TIME_MS2I(DEBOUNCE_TIME), led2toggle, NULL);
+ chSysUnlockFromISR();
+ } else if (debouncing2 && (pad2 == PAL_HIGH)) {
+ chSysLockFromISR();
+ if (chVTIsArmedI(&vt2))
+ chVTResetI(&vt2);
+ chSysUnlockFromISR();
+ debouncing2 = false;
+ }
+}
+
+/*
+ * 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();
+
+ palSetPadCallback(IOPORT1, KEY1, extcb1, NULL);
+ palSetPadCallback(IOPORT1, KEY2, extcb2, NULL);
+
+ /*
+ * Normal main() thread activity, in this demo it enables and disables the
+ * button EXT channel using 5 seconds intervals.
+ */
+ while (TRUE) {
+ palSetPad(IOPORT1, LED0);
+ chThdSleepMilliseconds(5000);
+ palDisablePadEvent(IOPORT1, KEY1);
+ palDisablePadEvent(IOPORT1, KEY2);
+ palClearPad(IOPORT1, LED0);
+ chThdSleepMilliseconds(5000);
+ palEnablePadEvent(IOPORT1, KEY1, PAL_EVENT_MODE_FALLING_EDGE);
+ palEnablePadEvent(IOPORT1, KEY2, PAL_EVENT_MODE_RISING_EDGE);
+ }
+
+ return 0;
+}