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stm32f0:usart: Correctly allow >8bit words.

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Make them 16bit regs, like on other periphs.  This allows proper access
to the "8th" bit.  (0..8 is 9 bits, not 8)

Found and reported in https://github.com/libopencm3/libopencm3/pull/651
This commit is contained in:
Karl Palsson
2017-01-12 23:25:53 +00:00
parent 6dd7b3ecc5
commit 7ee1d948e9
2 changed files with 10 additions and 10 deletions
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12
include/libopencm3/stm32/f0/usart.h
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@@ -100,13 +100,13 @@
#define USART3_ICR USART_ICR(USART3_BASE)
#define USART4_ICR USART_ICR(USART4_BASE)
#define USART_RDR(usart_base) MMIO8((usart_base) + 0x24)
#define USART_RDR(usart_base) MMIO16((usart_base) + 0x24)
#define USART1_RDR USART_RDR(USART1_BASE)
#define USART2_RDR USART_RDR(USART2_BASE)
#define USART3_RDR USART_RDR(USART3_BASE)
#define USART4_RDR USART_RDR(USART4_BASE)
#define USART_TDR(usart_base) MMIO8((usart_base) + 0x28)
#define USART_TDR(usart_base) MMIO16((usart_base) + 0x28)
#define USART1_TDR USART_TDR(USART1_BASE)
#define USART2_TDR USART_TDR(USART2_BASE)
#define USART3_TDR USART_TDR(USART3_BASE)
@@ -309,12 +309,12 @@ void usart_set_mode(uint32_t usart, uint32_t mode);
void usart_set_flow_control(uint32_t usart, uint32_t flowcontrol);
void usart_enable(uint32_t usart);
void usart_disable(uint32_t usart);
void usart_send(uint32_t usart, uint8_t data);
uint8_t usart_recv(uint32_t usart);
void usart_send(uint32_t usart, uint16_t data);
uint16_t usart_recv(uint32_t usart);
void usart_wait_send_ready(uint32_t usart);
void usart_wait_recv_ready(uint32_t usart);
void usart_send_blocking(uint32_t usart, uint8_t data);
uint8_t usart_recv_blocking(uint32_t usart);
void usart_send_blocking(uint32_t usart, uint16_t data);
uint16_t usart_recv_blocking(uint32_t usart);
void usart_enable_rx_dma(uint32_t usart);
void usart_disable_rx_dma(uint32_t usart);
void usart_enable_tx_dma(uint32_t usart);