109 lines
2.2 KiB
C
109 lines
2.2 KiB
C
/* *************************************
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* Includes
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* *************************************/
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#include "Serial.h"
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/* *************************************
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* Defines
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* *************************************/
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#define SERIAL_BAUDRATE 115200
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#define SERIAL_TX_RX_TIMEOUT 20000
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#define SERIAL_RX_FIFO_EMPTY 0
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#define SERIAL_TX_NOT_READY 0
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#define SERIAL_PRINTF_INTERNAL_BUFFER_SIZE 256
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/* **************************************
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* Structs and enums *
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* *************************************/
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typedef enum
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{
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SERIAL_STATE_INIT = 0,
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SERIAL_STATE_STANDBY,
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SERIAL_STATE_WRITING_INITIAL
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}SERIAL_STATE;
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/* *************************************
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* Local Variables
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* *************************************/
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static volatile SERIAL_STATE SerialState;
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static volatile bool serial_busy;
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/* *************************************
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* Local Prototypes
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* *************************************/
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void SerialInit(void)
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{
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SIOStart(115200);
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}
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bool SerialRead(uint8_t* ptrArray, size_t nBytes)
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{
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if (nBytes == 0)
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{
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return false;
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}
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do
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{
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//uint16_t timeout = SERIAL_TX_RX_TIMEOUT;
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while ( (SIOCheckInBuffer() == SERIAL_RX_FIFO_EMPTY)); // Wait for RX FIFO not empty
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*(ptrArray++) = SIOReadByte();
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} while (--nBytes);
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return true;
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}
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bool SerialWrite(void* ptrArray, size_t nBytes)
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{
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serial_busy = true;
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if (nBytes == 0)
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{
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return false;
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}
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do
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{
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//uint16_t timeout = SERIAL_TX_RX_TIMEOUT;
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while ( (SIOCheckOutBuffer() == SERIAL_TX_NOT_READY)); // Wait for TX FIFO empty.
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SIOSendByte(*(uint8_t*)ptrArray++);
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} while (--nBytes);
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serial_busy = false;
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return true;
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}
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volatile bool SerialIsBusy(void)
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{
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return serial_busy;
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}
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#ifdef SERIAL_INTERFACE
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void Serial_printf(const char* str, ...)
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{
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va_list ap;
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int result;
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static char internal_buffer[SERIAL_PRINTF_INTERNAL_BUFFER_SIZE];
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va_start(ap, str);
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result = vsnprintf( internal_buffer,
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SERIAL_PRINTF_INTERNAL_BUFFER_SIZE,
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str,
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ap );
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SerialWrite(internal_buffer, result);
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}
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#endif // SERIAL_INTERFACE
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