Hello to everybody
I am using IAP to program the FLASH memory ,to store permanently some
data, as I have not included EEPROM in my target board.So my
application itself is programming the FLASH to recall some data
during next power ON.
I am using the assembler-code which I found in the user manual
LPC901..... It runs very well in my software-simulator in Keils
Vision3. When I am using Keils EPM900-Emulatorboard it also runs
good. When I use it on Chip, I always read different numbers from the
same address.
H E L P me please. Is here anybody who can help me, to program some
code, which runs on chip and in the emulator?
How about this: Write #89H into code:0801H -- than read from 0801H
and store in ACC
It would be nice to hear from anybody Best Regards Frank Start a New Thread

You can only effectively program 512byte chunks at a time on 512byte
boundaries.

If you want to only update a few bytes at a time you're progbably going
to have to read in the page, erase it and rewrite the modified page.

The IAP routines work fine for me. Start a New Thread

Hi Frank and Charles,

there seems to be a little mix up here:
Frank you are talking about LPC900 and yes you can program byte by
byte and use the program memory very easy as EEPROM.
Charles, I guess you are talking about the LPC2000 flash devices where
byte programming as EEPROM replacement can only be done in larger
chunks as discussed before in this group.

Frank, you asked your question in the correct group LPC900_users as
well, this group is for the LPC2000 devices and EEPROM is very
different than on the LPC900, that's where the confusion comes from.

hth, Bob Start a New Thread

Hi Bob and Charles,

sorry for starting this mess in the wrong group. At least I have
learned more about the LPC2000 flash devices. But I have still the
problem with my LPC901.
Thanks to everybody Best Regards Frank Start a New Thread