Thanks, indeed the problem is now solved. Erik Malund gave me this tip too.
Maybe it would be nice to give a warning when overwriting programcode.
Maybe it would be nice to give a warning when overwriting programcode.
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P89C51Rx+/P89C51Rx2/P89C66x/P89C6xX2/P89V66x / Re: Flash programming problem with P89C51RD2BA
January 16, 2006, 07:23:11 AM #2
P89C51Rx+/P89C51Rx2/P89C66x/P89C6xX2/P89V66x / Flash programming problem with P89C51RD2BA
January 16, 2006, 02:43:05 AM
I found out that there is a problem with programming this chip. The last byte of each boundary is wrong. (I checked 4 flashblocks). Flashmagic give 'OK' after verifying the programmed code. Reading out the last byte(0XFFFh) of each block with Flashmagic and my application gives the same wrong byte. '1' can be '0' or vice verse, reprogramming a second time without erasing does not solve the problem.
I also tried with 'FREQ = 0' and 'FREQ = 20' as my device works at maximum speed in 6-clk mode.
I have the problem in Flashmagic V1.74 and V2.47
What could be wrong ?
Thanks for your response.
Koen De Ganck
I also tried with 'FREQ = 0' and 'FREQ = 20' as my device works at maximum speed in 6-clk mode.
I have the problem in Flashmagic V1.74 and V2.47
What could be wrong ?
Thanks for your response.
Koen De Ganck
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