From 0b5ac831d2e63a091833c702b07b0331fba32e72 Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Tue, 11 Sep 2018 18:49:22 -0700 Subject: altos/stm32f4: Add usart driver for usart6 This is what the disco board hooks up. Signed-off-by: Keith Packard --- src/stm32f4/ao_arch.h | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) (limited to 'src/stm32f4/ao_arch.h') diff --git a/src/stm32f4/ao_arch.h b/src/stm32f4/ao_arch.h index d4c78f60..083a4e5b 100644 --- a/src/stm32f4/ao_arch.h +++ b/src/stm32f4/ao_arch.h @@ -100,4 +100,32 @@ #define AO_SYSTICK (AO_HCLK) #define AO_PANIC_DELAY_SCALE (AO_SYSCLK / 12000000) +/* The stm32f413 implements only 4 bits of the priority fields? */ + +#if AO_NONMASK_INTERRUPT +#define AO_STM_NVIC_NONMASK_PRIORITY 0x00 + +/* Set the basepri register to this value to mask all + * non-maskable priorities + */ +#define AO_STM_NVIC_BASEPRI_MASK 0x10 +#endif + +#define AO_STM_NVIC_HIGH_PRIORITY 0x40 +#define AO_STM_NVIC_MED_PRIORITY 0x80 +#define AO_STM_NVIC_LOW_PRIORITY 0xC0 +#define AO_STM_NVIC_CLOCK_PRIORITY 0xf0 + +#define AO_GPIO_MODE_PULL_NONE 0 +#define AO_GPIO_MODE_PULL_UP 4 +#define AO_GPIO_MODE_PULL_DOWN 8 + +/* usart stuff */ + +#define AO_SERIAL_SPEED_4800 4800 +#define AO_SERIAL_SPEED_9600 9600 +#define AO_SERIAL_SPEED_19200 19200 +#define AO_SERIAL_SPEED_57600 57600 +#define AO_SERIAL_SPEED_115200 115200 + #endif /* _AO_ARCH_H_ */ -- cgit v1.2.3