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Fix the way that tone_alarm idles the GPIO and make it idle safely for v2 boards.

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This commit is contained in:
px4dev
2013-04-06 15:47:34 -07:00
parent d8e8e6cd20
commit e7e35616c0
3 changed files with 7 additions and 5 deletions
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8
apps/drivers/stm32/tone_alarm/tone_alarm.cpp
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@@ -494,7 +494,7 @@ ToneAlarm::init()
return ret; return ret;
/* configure the GPIO to the idle state */ /* configure the GPIO to the idle state */
stm32_configgpio(GPIO_TONE_ALARM); stm32_configgpio(GPIO_TONE_ALARM_IDLE);
/* clock/power on our timer */ /* clock/power on our timer */
modifyreg32(STM32_RCC_APB1ENR, 0, TONE_ALARM_CLOCK_ENABLE); modifyreg32(STM32_RCC_APB1ENR, 0, TONE_ALARM_CLOCK_ENABLE);
@@ -606,6 +606,8 @@ ToneAlarm::start_note(unsigned note)
rEGR = GTIM_EGR_UG; // force a reload of the period rEGR = GTIM_EGR_UG; // force a reload of the period
rCCER |= TONE_CCER; // enable the output rCCER |= TONE_CCER; // enable the output
// configure the GPIO to enable timer output
stm32_configgpio(GPIO_TONE_ALARM);
} }
void void
@@ -616,10 +618,8 @@ ToneAlarm::stop_note()
/* /*
* Make sure the GPIO is not driving the speaker. * Make sure the GPIO is not driving the speaker.
*
* XXX this presumes PX4FMU and the onboard speaker driver FET.
*/ */
stm32_gpiowrite(GPIO_TONE_ALARM, 0); stm32_configgpio(GPIO_TONE_ALARM_IDLE);
} }
void void

1
nuttx/configs/px4fmu/include/board.h
View File

@@ -326,6 +326,7 @@
*/ */
#define TONE_ALARM_TIMER 3 /* timer 3 */ #define TONE_ALARM_TIMER 3 /* timer 3 */
#define TONE_ALARM_CHANNEL 3 /* channel 3 */ #define TONE_ALARM_CHANNEL 3 /* channel 3 */
#define GPIO_TONE_ALARM_IDLE (GPIO_OUTPUT|GPIO_PUSHPULL|GPIO_SPEED_2MHz|GPIO_OUTPUT_CLEAR|GPIO_PORTC|GPIO_PIN8)
#define GPIO_TONE_ALARM (GPIO_ALT|GPIO_AF2|GPIO_SPEED_2MHz|GPIO_FLOAT|GPIO_PUSHPULL|GPIO_PORTC|GPIO_PIN8) #define GPIO_TONE_ALARM (GPIO_ALT|GPIO_AF2|GPIO_SPEED_2MHz|GPIO_FLOAT|GPIO_PUSHPULL|GPIO_PORTC|GPIO_PIN8)
/************************************************************************************ /************************************************************************************

3
nuttx/configs/px4fmuv2/include/board.h
View File

@@ -311,7 +311,8 @@
*/ */
#define TONE_ALARM_TIMER 2 /* timer 2 */ #define TONE_ALARM_TIMER 2 /* timer 2 */
#define TONE_ALARM_CHANNEL 1 /* channel 1 */ #define TONE_ALARM_CHANNEL 1 /* channel 1 */
#define GPIO_TONE_ALARM (GPIO_ALT|GPIO_AF1|GPIO_SPEED_2MHz|GPIO_FLOAT|GPIO_PUSHPULL|GPIO_PORTA|GPIO_PIN15) #define GPIO_TONE_ALARM_IDLE (GPIO_OUTPUT|GPIO_PUSHPULL|GPIO_SPEED_2MHz|GPIO_OUTPUT_CLEAR|GPIO_PORTA|GPIO_PIN15)
#define GPIO_TONE_ALARM (GPIO_ALT|GPIO_AF1|GPIO_SPEED_2MHz|GPIO_PUSHPULL|GPIO_PORTA|GPIO_PIN15)
/************************************************************************************ /************************************************************************************
* Public Data * Public Data