EMTime/libopencm3
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

lm4f/uart: Implemented a function to get the current databits setting for a UART

Browse Source
This commit is contained in:
dragonmux
2022-08-23 03:14:22 +01:00
committed by Piotr Esden-Tempski
parent 4d23ac8714
commit 78ace36308
2 changed files with 7 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
include/libopencm3/lm4f/uart.h
View File

@@ -444,6 +444,7 @@ BEGIN_DECLS
void uart_set_baudrate(uint32_t uart, uint32_t baud); void uart_set_baudrate(uint32_t uart, uint32_t baud);
void uart_set_databits(uint32_t uart, uint8_t databits); void uart_set_databits(uint32_t uart, uint8_t databits);
uint8_t uart_get_databits(uint32_t uart);
void uart_set_stopbits(uint32_t uart, uint8_t stopbits); void uart_set_stopbits(uint32_t uart, uint8_t stopbits);
void uart_set_parity(uint32_t uart, enum uart_parity parity); void uart_set_parity(uint32_t uart, enum uart_parity parity);
void uart_set_mode(uint32_t uart, uint32_t mode); void uart_set_mode(uint32_t uart, uint32_t mode);

6
lib/lm4f/uart.c
View File

@@ -151,6 +151,12 @@ void uart_set_databits(uint32_t uart, uint8_t databits)
UART_LCRH(uart) = reg32; UART_LCRH(uart) = reg32;
} }
uint8_t uart_get_databits(uint32_t uart)
{
const uint8_t bits = (UART_LCRH(uart) & UART_LCRH_WLEN_MASK) >> 5;
return bits + 5;
}
/** /**
* \brief Set UART stopbits * \brief Set UART stopbits
* *