Main Menu
Menu

Show posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.

Show posts Menu

Messages - Tony G

#1
Old Topics / Parallel Programmer
August 03, 2004, 12:39:26 AM
Hi,
can anyone recommend a cheap parallel programmer for the P89C51RD2HBP.
Required for re-programming the boot loader.
Thanks,

Tony G.
#2
Help please:
I have tried program the P89C51RD2 using an application note which suggested the use of DTR and CTS of the RS232C port. This did not work and I have followed procedures for power up of Vpp and PSEN.
I have been able to program the part using just the RX and TX. However the part insists on setting the FX2 bit and forces the micro to work in the 6 clock mode. Among other possible effects is that the baud rate generator now works at 2 times the rate. Using just TX and RX I have not been able to get FlasMagic to program for 12 clock mode.
I have tried to alter the CKCON register with the user code but am unable to read of alter this register. CKCON always returns FFh.
The user code works because I have used the same code on an ATMEL 89C51RD2 and I am able to read this register and alter it.

Any suggestions?

Thanks