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