Appendix C: F75111N I C Dio Decice - Lex Computech CI770C User Manual

Appendix C: F75111N I C DIO device
1-1 IO Device:F75111 under DOS
The Sample code source you can download from
Source fi le: F75111_Dos_Src.rar
Binary fi le: F75111_Dos_Bin.rar
USERNAME & PASSWORD: sf
How to use this Demo Application
1.Boot Ms-Dos Operating System
2.execute "75WDT.EXE" binary fi le
3.Input 1 to Enable WDT timer or input 0 to Disable it.
4.input numbers of second for chip countdown and Reset Computer
Introduction
How to use this Demo Application
WriteI2CByte(I2CADDR, CONFIG, 0x03);//Set Watch Dog Timer function
WriteI2CByte(I2CADDR, WDT_TIMER, timer);//Set Watch Dog Timer range from 0-255.
WriteI2CByte(I2CADDR, WDT_TIMER_CTL, 0x73);//Enable Watch Dog Timer in second and pulse mode
How to use this Demo Application
WriteI2CByte(I2CADDR, WDT_TIMER_CTL, 0x00);
How to use this Demo Application
void pause(int time)
{
asm mov ah,0h;
asm int 1ah;
asm add dx,time;
asm mov bx,dx;
label:
asm int 1ah;
asm cmp bx,dx;
asm jne label;
}
2
http://tprd.info/lexwiki/index.php/IO_Device:F75111_under_DOS
//Ah = 00 Read System Time Counter
//read time from Time Counter and store it in DX register
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