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stm32: Add serial USART serial port option for port PD9/PD8 

Signed-off-by: Gerrit Sturm <gsturm16@gmail.com>
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2019-08-09 20:32:46 -04:00
parent 8c5fc1688a
commit 96ff54e143
2 changed files with 10 additions and 0 deletions
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3
src/stm32/Kconfig
View File

@ -111,9 +111,12 @@ choice
bool "USART2"
config STM32_SERIAL_USART3
bool "USART3"
config STM32_SERIAL_USART3_ALT
bool "USART3 (on PD9/PD8)" if MACH_STM32F4
endchoice
config SERIAL_PORT
int
default 103 if STM32_SERIAL_USART3_ALT
default 3 if STM32_SERIAL_USART3
default 2 if STM32_SERIAL_USART2
default 1

7
src/stm32/serial.c
View File

@ -25,6 +25,13 @@ DECL_CONSTANT_STR("RESERVE_PINS_serial", "PA3,PA2");
#define USARTx USART2
#define USARTx_IRQn USART2_IRQn
#define USARTx_IRQHandler USART2_IRQHandler
#elif CONFIG_SERIAL_PORT == 103
DECL_CONSTANT_STR("RESERVE_PINS_serial", "PD9,PD8");
#define GPIO_Rx GPIO('D', 9)
#define GPIO_Tx GPIO('D', 8)
#define USARTx USART3
#define USARTx_IRQn USART3_IRQn
#define USARTx_IRQHandler USART3_IRQHandler
#else
DECL_CONSTANT_STR("RESERVE_PINS_serial", "PB11,PB10");
#define GPIO_Rx GPIO('B', 11)