44blib.h

这是一个关于arm7开发平台的bootloader 在ADS 环境下直接移植到开发板上

/***********************************************
 * NAME    : 44BLIB.H                          *
 * Version : 17.Apr.00                         *
 ***********************************************/
#define DebugOut Uart_Printf

#define min(x1,x2) ((x1<x2)? x1:x2)
#define max(x1,x2) ((x1>x2)? x1:x2)

#define ONESEC0 (62500)	//16us resolution, max 1.04 sec
#define ONESEC1 (31250)	//32us resolution, max 2.09 sec
#define ONESEC2 (15625)	//64us resolution, max 4.19 sec
#define ONESEC3 (7812)	//128us resolution, max 8.38 sec
#define ONESEC4 (MCLK/128/(0xff+1))  //@60Mhz, 128*4us resolution, max 32.53 sec

#define NULL 0

#define EnterPWDN(clkcon) ((void (*)(int))0xe0)(clkcon)
#define DOWNLOAD_ADDRESS (_RAM_STARTADDRESS+0x80000)

typedef void (*serial_loop_func_t)(void);


/*44blib.c*/
void Delay(int time); //Watchdog Timer is used.
void Port_Init(void);
void Cache_Flush(void);
void ChangeMemCon(unsigned *pMemCfg);

int Uart_Init(int whichUart,int baud);
void Uart_RxEmpty(int whichUart);
void Uart_TxEmpty(int whichUart);
int Set_UartLoopFunc(serial_loop_func_t func);
int Clear_UartLoopFunc(int index);
char Uart_Getch(int whichUart);
int Uart_Poll(int whichUart);
int Uart_SendByte(int whichUart, int data);
int  Uart_GetIntNum(void);
void Uart_Printf(char *fmt,...);
void Uart_SendString(char *pt);

void Timer_Start(int divider); //Watchdog Timer is used.
int Timer_Stop(void);          //Watchdog Timer is used.
//void restart(void);
//void run(void);
void Led_Display(int data);
void ChangePllValue(int m,int p,int s);

#define WriteSDIO(data) 		SendSIOData((data))
void init_SIO(void);
unsigned char ReadSIOData(void);
void SendSIOData(unsigned char data);
unsigned char ReadSDIO(void);