Nigel Spon

MCF52235 EVB flash disabled?

Discussion created by Nigel Spon on Aug 28, 2008
Latest reply on Sep 2, 2008 by Tom Thompson
I'm trying to get started using CW 6.3 to work with an MCF52235EVB via a P&E USB interface. I'm using the C stationery and the demo Hello World app. The RAM-loaded 'Console Debug' and 'UART Debug' versions of the demo are working fine; they download, run, and debug just as they should.

The 'Internal ROM' version that writes to the 256K flash, however, does not. It seems something is preventing it from writing to the flash memory, because every write fails to verify, or if verification is turned off it simply doesn't work.

Is there something I need to do to enable flash programming from CW? The 'Flash Programmer' tool provided seems to be able to erase and blank-check the flash OK, so I presume it can't be the hardware?