int86(0x22,®s,®s);
/* enter stand-by state if no input from
either barcode port or keyboard */
}
1.7
Beeper Control Function ( INT 31H )
Entry Parameter:
AX= frequency
BX=time duration
AX Frequency(Hz) BX
Time
Duration(ms)
0
200
0
10
1
400
1
50
2
600
2
100
3
800
3
200
4
1K
4
500
5
2K
5
800
6
2.5K
6
1K
7
3K
7
1.5K
7
5K
8
2K
Return Value: None
Example
:
void TD_beep_new(int fz,int tm)
{
regs.x.ax = fz;
regs.x.bx = tm;
int86(0x31,®s,®s);
}
1.8
RS232 Control Functions ( INT 33H )
Function #
00
Set Communication Parameters
Содержание PT600
Страница 1: ...PT600 Portable Terminal Programming Reference Guide Document number 3506000120...
Страница 7: ......
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Страница 20: ...regs h bh 5 regs h al unsigned char type regs h bl unsigned char status int86 0x21 regs regs...
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Страница 66: ...Host Command STX ESC CMD parameters CS1 CS2 ADDR Acknowledgement ACK Negative ACK NAK...