topic Re: Prevent flash erase during debugging in CodeWarrior for MCU

Prevent flash erase during debugging

ngsoftuser — Wed, 22 May 2013 08:58:18 GMT

Hi,

Is there any way to tell CW (version 10.2) not to erase flash when burning firmaware?

The reason I am asking is because I need to develop bootloader for MC9S08DZ60. I want to burn application before I burn the bootloader

and see that the bootloader actually jump to the application.

Is there a way to limit S record length? for example I want it to be max of 64 bytes.

Thanks.

Re: Prevent flash erase during debugging

BlackNight — Wed, 22 May 2013 09:36:04 GMT

Hello,

if you are usiing P&E as connection device, then this link provides a way to do this:

Programming part of flash

I hope this helps.

Re: Prevent flash erase during debugging

ngsoftuser — Wed, 22 May 2013 09:54:30 GMT

Thanks,

As for my seconds question, use SLINELEN will set the S-Record len

Re: Prevent flash erase during debugging

Rick_Li — Tue, 28 May 2013 03:03:52 GMT

Eran,

that's right, SLINELEN will set the S-Record len.

an example is like below (the .bbl file):

OPENFILE "%ABS_FILE%.s19"

format=motorola

busWidth=1

origin=0

len=0x10000

destination=0

SLINELEN=24

SRECORD=Sx

SENDBYTE 1 "%ABS_FILE%"

Re: Prevent flash erase during debugging

ngsoftuser — Tue, 28 May 2013 15:08:03 GMT

Hello Erich,

I think there is a bug in the memory Preservation or i might missing how to use it.
My bootloader is set in PRM to be on ROM in range of 0xFA00 to 0xFFAD.
When I try to set memory Preservation range as mentioned above, eclipse ignores it and set it as F9C0 to FFBF.

The same thing happens when I try to set bootloader project to prevent erasing range 1900 To FFFF eclipse ignores it and set is as 1900 to 10DF.

Is this really a bug or I am missing something in memory preservation?

My mcu is MC9S08DZ60.

Thank you.