1 files changed, 122 insertions, 0 deletions
diff --git a/testhal/NRF52/NRF52832/PWM-ICU/main.c b/testhal/NRF52/NRF52832/PWM-ICU/main.c
new file mode 100644
index 0000000..6ad8a4c
--- /dev/null
+++ b/testhal/NRF52/NRF52832/PWM-ICU/main.c
@@ -0,0 +1,122 @@
+/*
+    Copyright (C) 2018 andru
+
+    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"
+
+static icucnt_t last_width, last_period;
+
+static SerialConfig serial_config = {
+    .speed   = 38400,
+    .tx_pad  = UART_TX,
+    .rx_pad  = UART_RX,
+#if NRF5_SERIAL_USE_HWFLOWCTRL  == TRUE
+    .rts_pad = UART_RTS,
+    .cts_pad = UART_CTS,
+#endif
+};
+
+static void pwm_cb_period(PWMDriver *pwmp) {
+  (void)pwmp;
+  palTogglePad(IOPORT1, LED1);
+}
+
+void icu_width_cb(ICUDriver *icup) {
+  last_width = icuGetWidthX(icup);
+}
+
+void icu_period_cb(ICUDriver *icup) {
+  last_period = icuGetPeriodX(icup);
+}
+
+ICUConfig icucfg = {
+  .frequency = ICU_FREQUENCY_250KHZ,
+  .width_cb = icu_width_cb,
+  .period_cb = icu_period_cb,
+  NULL,
+  .iccfgp = {
+	{
+      .ioline = { BTN1, BTN2 },
+	  .mode = ICU_INPUT_ACTIVE_HIGH,
+	  .gpiote_channel = { 0, 1 },
+	  .ppi_channel = { 0, 1 },
+    },
+  },
+};
+
+PWMConfig pwmcfg = {
+  .frequency = PWM_FREQUENCY_125KHZ,
+  .period = 12500,
+  .callback = pwm_cb_period,
+  {
+	{ .mode = PWM_OUTPUT_DISABLED,
+    },
+    { .mode = PWM_OUTPUT_ACTIVE_HIGH,
+  	.ioline = LINE_LED2,
+    },
+  },
+};
+
+/*
+ * 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();
+
+  sdStart(&SD1, &serial_config);
+
+  /*
+   *
+   */
+  pwmStart(&PWMD1, &pwmcfg);
+  pwmEnablePeriodicNotification(&PWMD1);
+
+  icuStart(&ICUD1, &icucfg);
+  icuStartCapture(&ICUD1);
+
+  pwmEnableChannel(&PWMD1, 1, PWM_PERCENTAGE_TO_WIDTH(&PWMD1, 2500));	// 25%
+  chThdSleepMilliseconds(5000);
+  chprintf((BaseSequentialStream *) &SD1, "period=%d, width=%d\r\n", last_period, last_width);
+
+  pwmEnableChannel(&PWMD1, 1, PWM_PERCENTAGE_TO_WIDTH(&PWMD1, 5000));	// 50%
+  chThdSleepMilliseconds(5000);
+  chprintf((BaseSequentialStream *) &SD1, "period=%d, width=%d\r\n", last_period, last_width);
+
+  pwmEnableChannel(&PWMD1, 1, PWM_PERCENTAGE_TO_WIDTH(&PWMD1, 7500));	// 75%
+  chThdSleepMilliseconds(5000);
+  chprintf((BaseSequentialStream *) &SD1, "period=%d, width=%d\r\n", last_period, last_width);
+
+  pwmChangePeriod(&PWMD1, 5000);
+  chThdSleepMilliseconds(5000);
+
+  pwmDisableChannel(&PWMD1, 1);
+  pwmStop(&PWMD1);
+  icuStopCapture(&ICUD1);
+  icuStop(&ICUD1);
+
+  while (true) {
+    chThdSleepMilliseconds(500);
+  }
+}