topic Re: CodeWarrior 8- & 16-bit tools: How do I fill unused NVM with SWI instructions ? in CodeWarrior for MCU

CodeWarrior 8- & 16-bit tools: How do I fill unused NVM with SWI instructions ?

marc_paquette — Sat, 28 Jan 2006 02:11:21 GMT

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Posted: Jul 22, 2004 - 11:45 AM

9S12dp256B, CW V2.0, ANSI C.. I have a requirement that I fill my unused (Flash) memory with SWI commands. Is there an easier way than doing the brute force method of assigning constants to all the absolute memory addresses that need to be filled? This newbie could use some help... Thank You, in advance, for your time and patience.

Posted: Jul 22, 2004 - 04:48 PM

Use FILL command -- the unused ROM will be filled with 0x55.
Refer to SmartLinker manual under your installation.

ROM = READ_ONLY 0x4000 to 0x7FFF file 0x55

mw_jcheng

Re: CodeWarrior 8- & 16-bit tools: How do I fill unused NVM with SWI instructions ?

danielfriederic — Wed, 01 Feb 2006 05:35:33 GMT

Hi Marc, there is a little typo in your mail.
The linker command is FILL, and not file :smileywink:

ROM = READ_ONLY 0x4000 to 0x7FFF FILL 0x55

Daniel

Re: CodeWarrior 8- & 16-bit tools: How do I fill unused NVM with SWI instructions ?

Alban — Fri, 10 Feb 2006 01:25:49 GMT

Also, 0x55 is not SWI. 0x3F is SWI for S12.

Cheers,
Alban.

Re: CodeWarrior 8- & 16-bit tools: How do I fill unused NVM with SWI instructions ?

marc_paquette — Wed, 01 Mar 2006 04:20:31 GMT

Thank you both, danielfriederich and alban, for the corrections.

I encourage your feedback--feel free to correct all the mistakes you can find.

Marc.