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| author | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2013-06-15 15:58:20 +0000 |
|---|---|---|
| committer | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2013-06-15 15:58:20 +0000 |
| commit | 7c68ef157d009f9932ac47ba21ba5d74e321623f (patch) | |
| tree | 6c2442ca44cd090656ec3059ffb959f3d747e18d /testhal/SPC564Axx/ICU-PWM/main.c | |
| parent | 076746af63d317f8e96766b9137a65679f60463f (diff) | |
| parent | e0d850113610f3efa0c0ac4946901f683e5e7332 (diff) | |
| download | ChibiOS-7c68ef157d009f9932ac47ba21ba5d74e321623f.tar.gz ChibiOS-7c68ef157d009f9932ac47ba21ba5d74e321623f.tar.bz2 ChibiOS-7c68ef157d009f9932ac47ba21ba5d74e321623f.zip | |
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/branches/kernel_3_dev@5854 35acf78f-673a-0410-8e92-d51de3d6d3f4
Diffstat (limited to 'testhal/SPC564Axx/ICU-PWM/main.c')
| -rw-r--r-- | testhal/SPC564Axx/ICU-PWM/main.c | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/testhal/SPC564Axx/ICU-PWM/main.c b/testhal/SPC564Axx/ICU-PWM/main.c new file mode 100644 index 000000000..9f175890c --- /dev/null +++ b/testhal/SPC564Axx/ICU-PWM/main.c @@ -0,0 +1,142 @@ +/*
+ ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
+
+ 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"
+
+static void pwmpcb(PWMDriver *pwmp) {
+
+ (void)pwmp;
+ palClearPad(PORT11, P11_LED1);
+}
+
+static void pwmc1cb(PWMDriver *pwmp) {
+
+ (void)pwmp;
+ palSetPad(PORT11, P11_LED1);
+}
+
+static PWMConfig pwmcfg = {
+ 187500, /* 187500Hz PWM clock frequency.*/
+ 19500, /* Initial PWM period 0.1040s.*/
+ pwmpcb,
+ {
+ {PWM_OUTPUT_ACTIVE_HIGH, pwmc1cb}
+ },
+ PWM_ALIGN_EDGE
+};
+
+icucnt_t last_width, last_period;
+
+static void icuwidthcb(ICUDriver *icup) {
+
+ palSetPad(PORT11, P11_LED2);
+ last_width = icuGetWidth(icup);
+}
+
+static void icuperiodcb(ICUDriver *icup) {
+
+ palClearPad(PORT11, P11_LED2);
+ last_period = icuGetPeriod(icup);
+}
+
+static ICUConfig icucfg = {
+ ICU_INPUT_ACTIVE_HIGH,
+ 187500, /* 187500Hz ICU clock frequency.*/
+ icuwidthcb,
+ icuperiodcb,
+ NULL
+};
+
+/*
+ * Application entry point.
+ */
+int main(void) {
+
+ /* Initialization of all the imported components in the order specified in
+ the application wizard. The function is generated automatically.*/
+ componentsInit();
+
+ palClearPad(PORT11, P11_LED4);
+
+ /*
+ * Initializes the PWM driver 6 and ICU driver 3.
+ * PIN78 is the PWM output.
+ * PIN65 is the ICU input.
+ * The two pins have to be externally connected together.
+ */
+
+ /* Sets PIN65 alternative function.*/
+ SIU.PCR[181].R = 0b0000010100001100;
+
+ /* Sets PIN78 alternative function.*/
+ SIU.PCR[193].R = 0b0000011000001100;
+
+ icuStart(&ICUD3, &icucfg);
+ icuEnable(&ICUD3);
+ pwmStart(&PWMD6, &pwmcfg);
+
+ chThdSleepMilliseconds(2000);
+
+ /*
+ * Starts the PWM channel 0 using 75% duty cycle.
+ */
+ pwmEnableChannel(&PWMD6, 0, PWM_PERCENTAGE_TO_WIDTH(&PWMD6, 7500));
+ chThdSleepMilliseconds(5000);
+
+ /*
+ * Changes the PWM channel 0 to 50% duty cycle.
+ */
+ pwmEnableChannel(&PWMD6, 0, PWM_PERCENTAGE_TO_WIDTH(&PWMD6, 5000));
+ chThdSleepMilliseconds(5000);
+
+ /*
+ * Changes the PWM channel 0 to 25% duty cycle.
+ */
+ pwmEnableChannel(&PWMD6, 0, PWM_PERCENTAGE_TO_WIDTH(&PWMD6, 2500));
+ chThdSleepMilliseconds(5000);
+
+ /*
+ * Changes PWM period and the PWM channel 0 to 50% duty cycle.
+ */
+ pwmChangePeriod(&PWMD6, 25000);
+ pwmEnableChannel(&PWMD6, 0, PWM_PERCENTAGE_TO_WIDTH(&PWMD6, 5000));
+ chThdSleepMilliseconds(5000);
+
+ /*
+ * Disables PWM channel 0 and stops the drivers.
+ */
+ pwmDisableChannel(&PWMD6, 0);
+ pwmStop(&PWMD6);
+
+ /*
+ * Disables and stops the ICU drivers.
+ */
+
+ icuDisable(&ICUD3);
+ icuStop(&ICUD3);
+
+ palClearPad(PORT11, P11_LED3);
+ palClearPad(PORT11, P11_LED4);
+
+ /*
+ * Normal main() thread activity, in this demo it does nothing.
+ */
+ while (TRUE) {
+ chThdSleepMilliseconds(500);
+ }
+ return 0;
+}
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