Hello everyone
i am trying to develop an application using board that you can program to it straight from the debugger, i am using for that Keil software, but it doesn't seem straightforward as i tried to debug the code and load it to the AT89C51ED2 on board. i must be missing somethign if not a lot... the board is similar to the one in this link www.futurlec.com/AT89C51ED2_Controller.shtml any directions would be greatly appreciated
is this not the chip where the dash characters tell if it is USB or serial upload?
Erik
i believe it is a serial upload, using rs232 protocol if i could answer ur question. i have spent a good two hours trying to figure out how to upload the program to the chip...it's kinda sad )
i believe DO NOT 'believe' read the datasheet.
i could answer ur question WHAT micro resistor question????
Thank you for the response. speaking of the datasheet i read some of datasheet and instruction set manual as well as some pages of tutorial of AT89C51ED2, but what i have problem with is actually uploading a simple code to the chip, the program compiles without errors, but the message i keep getting from Keil software is an error message reagarding flash memory. step by step introductory tutorial to the software and debugging example would be most helpful. Are familiar with this software ?
what i have problem with is actually uploading a simple code to the chip
assuming you do have a 'serial ISP' version why not use the tried and true; FLIP (free from Atmel)?
If FLIP does not work, you have one of 3 problems a) oscillator not running b) reset (you do NOT use RC reset, I hope) c) serial path defective d) the above is all I can think of