uart.h

Realtek 公司的RTD2523A芯片原厂source code,没有被修改过的。

#ifdef __UART__

#if (RS232_DEBUG)

unsigned char idata UartNum    = 0;
unsigned char idata UartData[4];	// data array for RTD/I2C R/W

/*
unsigned char bdata byflag20    _at_ 0x20;
unsigned char bdata byflag21    _at_ 0x21;

sbit fTest              = byflag20 ^ 0;
sbit fUart_Start        = byflag21 ^ 0;
sbit fUartStart         = byflag21 ^ 1;
sbit fDebugModeEnable   = byflag21 ^ 2;
*/
bit fTest              = 0;
//bit fUart_Start        = 0;
bit fUartStart         = 0;
bit fDebugModeEnable   = 0;

void DebugModeLoop(void);
void DispOSD_TestMessage(void);
void HexToBin(unsigned int HexData);

void UART_Initialize(void);

#endif

#else

#if (RS232_DEBUG)

extern unsigned char idata  UartNum;
extern unsigned char idata  UartData[4];

//extern unsigned char bdata byflag20;
//extern unsigned char bdata byflag21;

extern bit  fTest;
//extern bit  fUart_Start;
extern bit  fUartStart;
extern bit  fDebugModeEnable;

extern const unsigned char PutStringToScr(const unsigned char code* pstr);
extern void PutCharToScr(const unsigned char ch);

extern void DebugModeLoop(void);
extern void DispOSD_TestMessage(void);
extern void HexToBin(unsigned int HexData);

extern void UART_Initialize(void);

#endif

#endif