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i made a program to blink LEDs on port 2... with uVision (BlinkLED.c) for on-chip 89C51 (4kbROM,128byteRAM) and it work well on uVision simulator but.. when i compile it, send the .Hex to the devBoard, it only run the initial command (after void main, before while(1)) i light 1 LED on P1.3 and it do fine... whats wrong with that? is it the setup matter? how can i setup uVision for my 89c51 on-chip EEPROM? is any one can help me... ive try it many time, but still dont work.. Thanks. Best Regards, Andy Mario
>Your posting is seriously lacking details. >It's quite impossible for anyone to guess >what might have gone wrong without knowing: >1) What development board is that? >2) How did you set up the Keil tools? >3) What version of the tools are you using? >4) What exactly does your program do? You >may have to show source code. > ah, im sorry for my mistake.. 1) well, i made a minimum board that i mistaken by devboard in common, its include: Regulator 5v, one chip 89c51, couple resistor and 8leds on every port(P0,P1,P2,P3..all have 8resistor and 8 leds) sothere is no external RAM/ROM...they all connected well. i try it with 'other Ledblink.HEX file that i didt made' and its work. :) but not work in my HEX file that i made with Keil-mVision2 :( ah... 2)i try setup in default condition..not work when i open the HEX, i found 01.8000.code.2DigitCRC. why '8000' offset so, i try to change the option that have value:'8000' to '0000' it result: 01.00012.code.2DigitCRC and still not work.. then i start to disable all debug option and still did not work... ........ah, what i do wrong? but from 1st place till now i only can make the led, 2 led on and the other off in every port... but not blinking. 3)Keil mVision2 4)ai.., i forgot to take it with me, i rent the internet, internet is very expensive in this country...pardon me, ill bring it in my next visit tomorrow. ...but,all i can tell is, its BLINK the LED one by one in P2 (port2) or P1 or P3 or P0... i just wanna see its 'BLINK' that mean the program did work ...not frozee like this. Thanks Before to everyone thats help. BEST REGARDS, AndyMario.