DataFlash erased in debug

killermax — Tue, 29 Dec 2009 20:47:43 GMT

Hello,

I would like to know if it is possible to avoid CW erasing the whole Memory Flash when downloading.

I need to use the internal data flash to save some parameters changed by the final user, so I have defined the bean IntFlash as Data_Flash, with Destructive write.

I'm using a 56f8365, and my parameters start from address 0x6000, with length 0x1000.

CW ver. 8.2.3

I'm able to write these parameters, and their values are kept if I switch off, but when I download a new software version with CW, the flash memory is entirely erased from 0x4000 to 0x7fff and I loose the saved values.

I have tried to change the length of x_internal_ROM from 0x4000 to 0x2000 inside ldm_pROM_xRAM.cmd, keeping ORIGIN at 0x4000, but without results.

Something to suggest ?

Thanks

Mario

Message Edited by killermax on 2009-12-29 12:50 PM

Re: DataFlash erased in debug

J2MEJediMaster — Mon, 04 Jan 2010 22:19:51 GMT

Try checking out FAQ-28898. While it covers ColdFire parts, some of the techniques may be applicable to what you are trying to do.

---Tom

topic Re: DataFlash erased in debug in Classic/Legacy CodeWarrior

DataFlash erased in debug

Re: DataFlash erased in debug