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I have bought a p89v51rd2 ic with small development board, for ISP programming, but when i'm connecting through the serial port its showing it is "not able to connect with given baud rate(9600), try with lower baud rate, and try to reset ISP." I tryed with all baud rate, but its showing the same msg.. can you send me the circuit of burner and its details.......
sorry, this time i'll expl'n u better, I have bought a p89v51rd2 ic with small development board,which was Readily available as “p89v512rd2n development board†@ there is no any manual for it, it is a local make it is a product of NSK electronics. To contact them there is no any contact details . to see how the board looks you can see at http://www.nskelectronics.com there u can find as 89V51RD2 MINI DEVELOPMENT BOARD Price: 200/- . and next is I waas able to program it for 3 times , but all the 3 times after around some 25 times trial was taken to connect it, once it gets connected we can read , program it, erase, but once if I press reset switch again the same trial should be made to connect it. The baud rate it matched was 2400, i am not able to clear the problem. the cable i am using is diret rs232 with 3 wires the TX & RX are connected properly, as i was able to program it for 3 times and again read it. but eveery time it gives a problem to connect and now it is not connecting. please help me in what ever way u can.