Help! Protues, timer to produce square wave signal error, OUT0 no output-CodePudding

MOV DX, 307 h; Write 8253 way control word
MOV AL, 0011, 0110 b; Counter 3 0 work in way
The OUT DX, AL; Control word write 8253 controller
MOV DX, 301 h; Counter number zero placement often
MOV AX, 10; The time constant of 10
The OUT DX, AL; Will often number into port
XCHG AL, AH;
The OUT DX, AL

CodePudding user response:

The

refer to the original poster weixin_47769265 response:

MOV DX, 307 h. Write 8253 way control word
MOV AL, 0011, 0110 b; Counter 3 0 work in way
The OUT DX, AL; Control word write 8253 controller
MOV DX, 301 h; Counter number zero placement often
MOV AX, 10; The time constant of 10
The OUT DX, AL; Will often number into port
XCHG AL, AH;
The OUT DX, AL

The original poster which school

CodePudding user response:

reference 1st floor when I was a child but white le reply:

Quote: refer to the original poster weixin_47769265 response:

MOV DX, 307 h; Write 8253 way control word
MOV AL, 0011, 0110 b; Counter 3 0 work in way
The OUT DX, AL; Control word write 8253 controller
MOV DX, 301 h; Counter number zero placement often
MOV AX, 10; The time constant of 10
The OUT DX, AL; Will often number into port
XCHG AL, AH;
The OUT DX, AL

The original poster which school

what's the matter?