etr232i.h

英创386模块的RS485控制协议和函数,还有例程

#if !defined( _ETR232I_H )
#define _ETR232I_H

// Valid bits: Dir[0], Dir[1], ... Dir[7]
// Dir[i] = 0: output
// Dir[i] = 1: input (default setting)
unsigned char GPIODirCfg( unsigned char Dir );

// Valid bits: Value[0], Value[1], ... Value[7]
void         GPIOWrite( unsigned char Value );

// return input status
unsigned char GPIORead( );

// BitIdx = 0, 1, ...7
unsigned int GPIOSetBit( int BitIdx, int L10 );

void         GPRS_STB( int L10 );	// L10 = 0, 1
unsigned int GPRS_PWR( );		// return = 0, 1
void         GPRS_AUX( int L10 );	// L10 = 0, 1

void  NB_Delay( unsigned int milliseconds );

int SetTMR1( unsigned Divider );
void SysReboot( );

////////////////////////////////////////////////////////
// watchdog duration time = 2exp(ExpNum)/96.0MHz
// ExpNum = 0: disable WDT
// ExpNum = 10, 20, 21, 22, 23, 24, 25, 26: enable WDT
////////////////////////////////////////////////////////
int          SetWDT( int ExpNum );
int          ReloadWDT( );

#endif