diff options
Diffstat (limited to 'testhal')
| -rw-r--r-- | testhal/STM32/PWM/main.c | 23 | ||||
| -rw-r--r-- | testhal/STM32/PWM/mcuconf.h | 4 | ||||
| -rw-r--r-- | testhal/STM32/PWM/readme.txt | 6 |
3 files changed, 29 insertions, 4 deletions
diff --git a/testhal/STM32/PWM/main.c b/testhal/STM32/PWM/main.c index ef08b792c..c89b71988 100644 --- a/testhal/STM32/PWM/main.c +++ b/testhal/STM32/PWM/main.c @@ -46,6 +46,25 @@ static PWMConfig pwmcfg = { 0
};
+icucnt_t last_width, last_period;
+
+static void icuwidthcb(ICUDriver *icup) {
+
+ last_width = icuGetWidthI(icup);
+}
+
+static void icuperiodcb(ICUDriver *icup) {
+
+ last_period = icuGetPeriodI(icup);
+}
+
+static ICUConfig icucfg = {
+ ICU_INPUT_ACTIVE_HIGH,
+ 10000, /* 10KHz ICU clock frequency. */
+ icuwidthcb,
+ icuperiodcb
+};
+
/*
* Application entry point.
*/
@@ -71,6 +90,8 @@ int main(void) { */
pwmStart(&PWMD1, &pwmcfg);
palSetPadMode(IOPORT1, 8, PAL_MODE_STM32_ALTERNATE_PUSHPULL);
+ icuStart(&ICUD4, &icucfg);
+ icuEnable(&ICUD4);
chThdSleepMilliseconds(2000);
/*
@@ -97,6 +118,8 @@ int main(void) { */
pwmDisableChannel(&PWMD1, 0);
pwmStop(&PWMD1);
+ icuDisable(&ICUD4);
+ icuStop(&ICUD4);
palSetPad(IOPORT3, GPIOC_LED);
/*
diff --git a/testhal/STM32/PWM/mcuconf.h b/testhal/STM32/PWM/mcuconf.h index 17929817f..bd96de17b 100644 --- a/testhal/STM32/PWM/mcuconf.h +++ b/testhal/STM32/PWM/mcuconf.h @@ -78,9 +78,9 @@ * ICU driver system settings.
*/
#define STM32_ICU_USE_TIM1 FALSE
-#define STM32_ICU_USE_TIM2 TRUE
+#define STM32_ICU_USE_TIM2 FALSE
#define STM32_ICU_USE_TIM3 FALSE
-#define STM32_ICU_USE_TIM4 FALSE
+#define STM32_ICU_USE_TIM4 TRUE
#define STM32_ICU_USE_TIM5 FALSE
#define STM32_ICU_TIM1_IRQ_PRIORITY 7
#define STM32_ICU_TIM2_IRQ_PRIORITY 7
diff --git a/testhal/STM32/PWM/readme.txt b/testhal/STM32/PWM/readme.txt index 4c3fdf2fa..97476205d 100644 --- a/testhal/STM32/PWM/readme.txt +++ b/testhal/STM32/PWM/readme.txt @@ -1,5 +1,5 @@ *****************************************************************************
-** ChibiOS/RT HAL - PWM driver demo for STM32. **
+** ChibiOS/RT HAL - PWM/ICU driver demo for STM32. **
*****************************************************************************
** TARGET **
@@ -8,7 +8,9 @@ The demo will on an Olimex STM32-P103 board. ** The Demo **
-The application demonstrates the use of the STM32 PWM driver.
+The application demonstrates the use of the STM32 PWM and ICU drivers. Pins
+PA8 and PB6 must be connected in order to trigger the ICU input with the
+PWM output. The ICU unit will measure the generated PWM.
** Build Procedure **
|