??? 09/25/04 19:09 Read: times |
#78137 - p89c51rd2 ISP failed |
I tried notouch but seemed to have failed
I am just detailing the things I have done I took a general purpose 8051 board, which basically has all ports on the PCB and reset and max232 circuit I disabled the Rc reset and gave reset pin to IMP 1232 supervisory chip, I have grounded the strobe in this design to avoid giving timer o/p to it. 1232 setup works properly with 89c51/52 chips too. Now I connected pin 2.6 & 2.7 to vcc via a 10k resistor EA/Vpp is conncted to vcc the I use flashmagic to connecto th board via serial port. It say "please reduce baudrate,reset uC and try again" It doesn't erase anything nor programs I am using a 11.0592 Mhz crystal i tried a troubleshooting technique mentioned in esscayacademy flashmagic guide,using hypeterminl and checking if U is echoed back. It works. What is the problem can some explain it to me. Thank you Deepak |