Messages

no, 6 clks/cycle option was not checked while erasing and the device was running in 12 clks/cycle default mode after reset....then also the erasing opertion hangs.
sudip

when i try to erase it...flash magic hangs...why is it so?

Dear Friend,
       Can we program the device, P89C51RD2BN from, 'org 0', if not then why...plz help.
Sudip Chatterjee

i'm using P89C51RD2BN with crystal frequency 22.1184 Mhz, I can read the device signature and the security bits but when i try to erase it through flash magic, the software hangs....after that when i reconnected it by hardware resetting the mcu...the flash memory read all 00h..please help

Dear Friend....
        I'm erasing the mcu for the first time...but when i attempt doing so,  The 'FlashMagic' hangs, though it is connected at 9600 baud rate and the status bar reads 'erasing block 0'...i waited for above 5 minutes for the message 'finished erasing device' message, or something like that but in vain. I closed the software and had to reconnect the mcu only after hardware reset. When it read the flash memory bloch it showed all 00h...please help