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| author | utzig <utzig@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2014-07-09 01:27:25 +0000 |
|---|---|---|
| committer | utzig <utzig@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2014-07-09 01:27:25 +0000 |
| commit | cfdaaa4edd70701d10f8077965a414cd81e1c412 (patch) | |
| tree | 2aaca636dcc84f805b45ace41eb592ef31347c08 /testhal/AVR/PWM/main.c | |
| parent | 761dde55c3f397522b6c186e28ad0d5d396c8e4c (diff) | |
| download | ChibiOS-cfdaaa4edd70701d10f8077965a414cd81e1c412.tar.gz ChibiOS-cfdaaa4edd70701d10f8077965a414cd81e1c412.tar.bz2 ChibiOS-cfdaaa4edd70701d10f8077965a414cd81e1c412.zip | |
Added AVR PWM test demo
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@7023 35acf78f-673a-0410-8e92-d51de3d6d3f4
Diffstat (limited to 'testhal/AVR/PWM/main.c')
| -rw-r--r-- | testhal/AVR/PWM/main.c | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/testhal/AVR/PWM/main.c b/testhal/AVR/PWM/main.c new file mode 100644 index 000000000..4764bec96 --- /dev/null +++ b/testhal/AVR/PWM/main.c @@ -0,0 +1,74 @@ +/*
+ ChibiOS/RT - Copyright (C) 2006-2014 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 "hal.h"
+
+#ifdef _NIL_
+#include "nil.h"
+#else
+#include "ch.h"
+#endif
+
+#ifdef _NIL_
+THD_WORKING_AREA(waThread1, 128);
+THD_FUNCTION(Thread1, arg) {
+ (void)arg;
+ while (true) {
+ chThdSleepMilliseconds(1);
+ }
+}
+
+THD_TABLE_BEGIN
+ THD_TABLE_ENTRY(waThread1, "main", Thread1, NULL)
+THD_TABLE_END
+#endif
+
+int main(void) {
+
+ halInit();
+
+ /*
+ * NOTE: when compiling for NIL, after the chSysInit() call, nothing
+ * more can be done in this thread so we first initialize PWM subsystem.
+ */
+
+ static PWMConfig pwm1cfg = {
+ 1023, /* Not real clock */
+ 1023, /* Maximum PWM count */
+ NULL,
+ {
+ {PWM_OUTPUT_ACTIVE_HIGH, NULL},
+ {PWM_OUTPUT_ACTIVE_HIGH, NULL},
+ {PWM_OUTPUT_ACTIVE_HIGH, NULL},
+ },
+ };
+
+ /* PB5-7 are timer 1 pwm channel outputs */
+ palSetPadMode(IOPORT2, 7, PAL_MODE_OUTPUT_PUSHPULL);
+ palSetPadMode(IOPORT2, 6, PAL_MODE_OUTPUT_PUSHPULL);
+ palSetPadMode(IOPORT2, 5, PAL_MODE_OUTPUT_PUSHPULL);
+
+ pwmStart(&PWMD1, &pwm1cfg);
+
+ /* channel 0 with 50% duty cycle, 1 with 25% and 2 with 75% */
+ pwmEnableChannel(&PWMD1, 0, 511);
+ pwmEnableChannel(&PWMD1, 1, 255);
+ pwmEnableChannel(&PWMD1, 2, 767);
+
+ chSysInit();
+
+ while (1) {}
+}
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