SAM UART API Declaration Implementations.
Copyright (c) 2019 Microchip Technology Inc. and its subsidiaries.
Functions | |
uint8_t | buffered_uart_getchar (void) |
This function performs a blocking character receive functionality. More... | |
int | buffered_uart_getchar_nowait (void) |
This function performs a non-blocking character receive functionality. More... | |
void | buffered_uart_init (uint32_t baudrate) |
Initializes the Buffered Serial IO Module. More... | |
int | buffered_uart_is_empty (void) |
check if the uart buffer is empty or not. More... | |
void | buffered_uart_putchar (uint8_t) |
This function prints the character to the host. More... | |
uint8_t | buffered_uart_rx (uint8_t *data, uint8_t max_length) |
Receives data from UART. More... | |
void | buffered_uart_term (void) |
Terminate the Buffered Serial IO Module. More... | |
uint8_t | buffered_uart_tx (uint8_t *data, uint32_t length) |
Transmits data via UART. More... | |
uint8_t buffered_uart_getchar | ( | void | ) |
This function performs a blocking character receive functionality.
References buffered_uart_getchar_nowait().
int buffered_uart_getchar_nowait | ( | void | ) |
This function performs a non-blocking character receive functionality.
References cpu_irq_disable, cpu_irq_enable, serial_rx_buf, serial_rx_buf_head, and serial_rx_buf_tail.
Referenced by buffered_uart_getchar().
void buffered_uart_init | ( | uint32_t | baudrate | ) |
Initializes the Buffered Serial IO Module.
References uart_rs232_options::baudrate, serial_rx_buf_head, serial_rx_buf_tail, stdio_serial_init(), and sysclk_enable_peripheral_clock().
Referenced by main(), and serial_bridge_process_reconfigure().
int buffered_uart_is_empty | ( | void | ) |
check if the uart buffer is empty or not.
void buffered_uart_putchar | ( | uint8_t | ) |
This function prints the character to the host.
References uart_is_tx_buf_empty(), usart_is_tx_buf_empty(), and usart_serial_putchar().
Referenced by serial_bridge_process_frame(), serial_bridge_process_read_block(), serial_bridge_process_read_reg_with_ret(), serial_bridge_process_reconfigure(), serial_bridge_process_sync_cmd(), serial_bridge_process_write_block(), and serial_bridge_process_write_reg().
uint8_t buffered_uart_rx | ( | uint8_t * | data, |
uint8_t | max_length | ||
) |
Receives data from UART.
data | pointer to the buffer where the received data is to be stored |
max_length | maximum length of data to be received |
References cpu_irq_disable, cpu_irq_enable, serial_rx_buf, serial_rx_buf_head, and serial_rx_buf_tail.
Referenced by enter_wifi_firmware_download(), and serial_bridge_frame_receive().
void buffered_uart_term | ( | void | ) |
Terminate the Buffered Serial IO Module.
Referenced by serial_bridge_process_reconfigure().
uint8_t buffered_uart_tx | ( | uint8_t * | data, |
uint32_t | length | ||
) |
Transmits data via UART.
data | Pointer to the buffer where the data to be transmitted is present |
length | Number of bytes to be transmitted |
References status, STATUS_OK, and usart_serial_write_packet().
Referenced by serial_bridge_process_read_block().