Re: [AVR-Chat] Problem During ISP Programming
2008-03-07 by rakesh modi
Thanks for ur reply. But the main Problem is if i write code more than given below. I cannot downnload the code. So plz tell me the solution .include "m16def.inc" LDI R16, 0X07 OUT SPL, R16 LDI R16, 0X00 OUT SPH, R16 //LDI R16, 0X5F //OUT SPL, R16 //LDI R16, 0X08 //OUT SPH, R16 HERE: LDI R17, 0XFF OUT DDRA, R17 LDI R17, 0XFf OUT PORTA,R17 CALL DELAY //CALL DELAY nop //cpi r17, 0x00 LDI R17, 0XFF OUT DDRA, R17 LDI R17, 0XFe OUT PORTA,R17 CALL DELAY //CALL DELAY nop //h:rjmp h RJMP HERE //DELAY1: //ldi R20,0x01 //ZX:CALL DELAY //DEC R19 //CPI R19, 0X00 //BRNE ZX //RET DELAY: //ldi R20,0x01 LDI R19, 0X14 w:ldi R18, 0X01 XY:DEC R18 CPI R18, 0X00 BRNE XY cbi PORTA, 0 SBI PORTA, 1 DEC R19 CPI R19, 0X00 BRNE W cbi PORTA,1 sbi PORTA,0 //DEC R20 //CPI R20, 0X00 //BRNE zx RET R.P.Modi
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----- Original Message ----
From: John Samperi <samperi@ampertronics.com.au>
To: AVR-Chat@yahoogroups.com
Sent: Friday, 7 March, 2008 2:33:55 AM
Subject: Re: [AVR-Chat] Problem During ISP Programming
At 08:43 PM 6/03/2008, you wrote:
> It gives me an error of clock frequency.
This has NOTHING to do with your code. You have the ISP
frequency set too high. Set it for 250KHz and WRITE it.
Regards
John Samperi
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Email: john@ampertronics. com.au
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