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Code Issues Wiki Activity

Ability to see how many Tx bytes are free in serial port buffer

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This commit is contained in:
Nicholas Sherlock 2015-06-23 00:30:37 +12:00
parent d0b940bf75
commit 6e504ca52a
13 changed files with 90 additions and 22 deletions
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7
src/main/drivers/serial_uart.h
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@ -19,6 +19,10 @@
// Since serial ports can be used for any function these buffer sizes should be equal
// The two largest things that need to be sent are: 1, MSP responses, 2, UBLOX SVINFO packet.
// Size must be a power of two due to various optimizations which use 'and' instead of 'mod'
// Various serial routines return the buffer occupied size as uint8_t which would need to be extended in order to
// increase size further.
#define UART1_RX_BUFFER_SIZE 256
#define UART1_TX_BUFFER_SIZE 256
#define UART2_RX_BUFFER_SIZE 256
@ -48,7 +52,8 @@ serialPort_t *uartOpen(USART_TypeDef *USARTx, serialReceiveCallbackPtr callback,
// serialPort API
void uartWrite(serialPort_t *instance, uint8_t ch);
uint8_t uartTotalBytesWaiting(serialPort_t *instance);
uint8_t uartTotalRxBytesWaiting(serialPort_t *instance);
uint8_t uartTotalTxBytesFree(serialPort_t *instance);
uint8_t uartRead(serialPort_t *instance);
void uartSetBaudRate(serialPort_t *s, uint32_t baudRate);
bool isUartTransmitBufferEmpty(serialPort_t *s);