RE: How do I configure my project to write to UICR in IAR

R. Schultze — Fri, 14 Aug 2015 09:36:34 GMT

Thank you for your answer. you are correct that it fills the entire bin file with padding if i add it to the icf file.

I have solved the problem by having my application write the UICR boot address register if it is not found like so:

uicrTemp = *(reinterpret_cast<volatile uint32_t *>(0x10001014));
if (uicrTemp != 0x0003A000){
	nrf_nvmc_write_word(0x10001014, 0x0003A000);	
}

RE: How do I configure my project to write to UICR in IAR

Alex — Fri, 07 Aug 2015 14:57:36 GMT

Try:

#pragma location="MySection"
const uint32_t uicr = 0x0003A000;

In icf file add line:

place at address mem: 0x10001014 { readonly section MySection};

But compiler may not allocate it in memory if you don't use it. So you have to add line anywhere in your code where you assign that constant to dummy variable; Other method is to create small hex file with 0x0003A000@0x10001014 value and do post-build merge of final hex and small hex.

:020000041000EA
:0410140000A0030035