Mirrors_Framework/paparazzi
1
0
Fork 0
mirror of https://github.com/paparazzi/paparazzi.git synced 2026-05-23 13:24:03 +08:00
Code Issues Actions 30 Packages Projects Releases Wiki Activity

Merge pull request #814 from esden/spektrum_bind_pin_fix

Browse Source 
[Spektrum] Configure the bind pin to be pullup/pulldown.
This commit is contained in:
Felix Ruess
2014-08-28 09:52:48 +02:00
parent cb343313ae ecb3d841cf
commit f9a7d4dafc
3 changed files with 53 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files
sw/airborne/arch/stm32/mcu_periph/gpio_arch.c
+22
View File
@@ -86,6 +86,18 @@ void gpio_setup_input(uint32_t port, uint16_t gpios) {
gpio_set_mode(port, GPIO_MODE_INPUT, GPIO_CNF_INPUT_FLOAT, gpios);
}
void gpio_setup_input_pullup(uint32_t port, uint16_t gpios) {
gpio_enable_clock(port);
gpio_set(port, gpios);
gpio_set_mode(port, GPIO_MODE_INPUT, GPIO_CNF_INPUT_PULL_UPDOWN, gpios);
}
void gpio_setup_input_pulldown(uint32_t port, uint16_t gpios) {
gpio_enable_clock(port);
gpio_clear(port, gpios);
gpio_set_mode(port, GPIO_MODE_INPUT, GPIO_CNF_INPUT_PULL_UPDOWN, gpios);
}
void gpio_setup_pin_af(uint32_t port, uint16_t pin, uint32_t af, bool_t is_output) {
gpio_enable_clock(port);
/* remap alternate function if needed */
@@ -116,6 +128,16 @@ void gpio_setup_input(uint32_t port, uint16_t gpios) {
gpio_mode_setup(port, GPIO_MODE_INPUT, GPIO_PUPD_NONE, gpios);
}
void gpio_setup_input_pullup(uint32_t port, uint16_t gpios) {
gpio_enable_clock(port);
gpio_mode_setup(port, GPIO_MODE_INPUT, GPIO_PUPD_PULLUP, gpios);
}
void gpio_setup_input_pulldown(uint32_t port, uint16_t gpios) {
gpio_enable_clock(port);
gpio_mode_setup(port, GPIO_MODE_INPUT, GPIO_PUPD_PULLDOWN, gpios);
}
void gpio_setup_pin_af(uint32_t port, uint16_t pin, uint8_t af, bool_t is_output __attribute__ ((unused))) {
gpio_enable_clock(port);
gpio_mode_setup(port, GPIO_MODE_AF, GPIO_PUPD_NONE, pin);
sw/airborne/arch/stm32/mcu_periph/gpio_arch.h
+14
View File
@@ -47,6 +47,20 @@ extern void gpio_setup_output(uint32_t port, uint16_t gpios);
*/
extern void gpio_setup_input(uint32_t port, uint16_t gpios);
/**
* Setup one or more pins of the given GPIO port as inputs with pull up resistor enabled.
* @param[in] port
* @param[in] gpios If multiple pins are to be changed, use logical OR '|' to separate them.
*/
extern void gpio_setup_input_pullup(uint32_t port, uint16_t gpios);
/**
* Setup one or more pins of the given GPIO port as inputs with pull down resistors enabled.
* @param[in] port
* @param[in] gpios If multiple pins are to be changed, use logical OR '|' to separate them.
*/
extern void gpio_setup_input_pulldown(uint32_t port, uint16_t gpios);
/**
* Setup a gpio for input or output with alternate function.
* This is an STM32 specific helper funtion and should only be used in stm32 arch code.
sw/airborne/arch/stm32/subsystems/radio_control/spektrum_arch.c
+17 -5
View File
@@ -686,15 +686,27 @@ void SecondaryUart(_ISR)(void) {
*****************************************************************************/
void radio_control_spektrum_try_bind(void) {
/* Init GPIO for the bind pin */
gpio_setup_input(SPEKTRUM_BIND_PIN_PORT, SPEKTRUM_BIND_PIN);
/* exit if the BIND_PIN is high, it needs to
be pulled low at startup to initiate bind */
#ifdef SPEKTRUM_BIND_PIN_HIGH
/* Init GPIO for the bind pin, we enable the pulldown resistor.
* (esden) As far as I can tell only navstick is using the PIN LOW version of
* the bind pin, but I assume this should not harm anything. If I am mistaken
* than I appologise for the inconvenience. :)
*/
gpio_setup_input_pulldown(SPEKTRUM_BIND_PIN_PORT, SPEKTRUM_BIND_PIN);
/* exit if the BIND_PIN is low, it needs to
be pulled high at startup to initiate bind */
if (gpio_get(SPEKTRUM_BIND_PIN_PORT, SPEKTRUM_BIND_PIN) == 0)
return;
#else
/* Init GPIO for the bind pin, we enable the pullup resistor in case we have
* a floating pin that does not have a hardware pullup resistor as it is the
* case with Lisa/M and Lisa/MX prior to version 2.1.
*/
gpio_setup_input_pullup(SPEKTRUM_BIND_PIN_PORT, SPEKTRUM_BIND_PIN);
/* exit if the BIND_PIN is high, it needs to
be pulled low at startup to initiate bind */
if (gpio_get(SPEKTRUM_BIND_PIN_PORT, SPEKTRUM_BIND_PIN) != 0)
return;
#endif