Diff: sw_fifo.hpp

Revision:

2:92c25cb669f4

Parent:

1:25a2b47ca291

--- a/sw_fifo.hpp	Thu Aug 05 08:27:51 2021 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,24 +0,0 @@
-#define FIFO_BUFFER_SIZE 128 // software buffer size (in bytes)
- 
-// UART data transmit function
-//  - checks if there's room in the transmit sw buffer
-//  - if there's room, it transfers data byte to sw buffer
-//  - automatically handles "uart_tx_buffer_full_flag"
-//  - sets the overflow flag upon software buffer overflow (doesn't overwrite existing data)
-//  - if this is the first data byte in the buffer, it enables the "hw buffer empty" interrupt
-void uart_send_byte(uint8_t byte);
- 
- 
-// UART data receive function
-//  - checks if data exists in the receive sw buffer
-//  - if data exists, it returns the oldest element contained in the buffer
-//  - automatically handles "uart_rx_buffer_full_flag"
-//  - if no data exists, it clears the uart_rx_flag
-uint8_t uart_get_byte(void);
- 
-volatile extern uint8_t uart_rx_fifo_not_empty_flag; // this flag is automatically set and cleared by the software buffer
-volatile extern uint8_t uart_rx_fifo_full_flag;      // this flag is automatically set and cleared by the software buffer
-volatile extern uint8_t uart_rx_fifo_ovf_flag;       // this flag is not automatically cleared by the software buffer
-volatile extern uint8_t uart_tx_fifo_full_flag;      // this flag is automatically set and cleared by the software buffer
-volatile extern uint8_t uart_tx_fifo_ovf_flag;       // this flag is not automatically cleared by the software buffer
-volatile extern uint8_t uart_tx_fifo_not_empty_flag; // this flag is automatically set and cleared by the software buffer