placing array data into flash CortexM3 LPC1768

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Mark Boyce

• December 07, 2015 10:39

Dear forum

 

I am trying to place a bitmap into flash rather than ram on the cortex M3 processor

I am using

const unsigned char bitmap[] = {....}

How do I do this. I am checking by looking at the Map file but it appears to be going into RAM

.rodata.PIC    0x00000000     0xbb80 Meter THUMB Flash Debug/lcd.o

Many thanks

Mark

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  Michael Johnson

  • December 07, 2015 11:16

  It's going into the .rodata section which is usually placed in Flash.

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  Mark Boyce

  • December 07, 2015 23:07

  Thanks for clarifying that. It was also not showing up in Flash usage as it was not referenced and hence optimised out.

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