i.MX ProcessorsのトピックRe: Creating applications for FLASH in ARM-DS-5

Creating applications for FLASH in ARM-DS-5

saida — Mon, 23 May 2016 09:30:59 GMT

Hi I.MX6 community

I am facing one problem

1. I i created a c-language application (with no startup code ) in arm-ds5 platform and from fromelf utility i converted to bin than loaded into DDR in u-boot than running in u-boot by go command , its working fine

2. but with startup code the application is not running from u-boot but it is running from debugger(DStream)

3. i am suspecting scatter file or c library initialization (__rt_entry routine)

if any one can find solution to my problem please give me reply

thank you

Regards

Saida

Re: Creating applications for FLASH in ARM-DS-5

Yuri — Tue, 24 May 2016 06:36:59 GMT

Hello,

U-boot runs so called standalone applications under Uboot environment ;

when providing special startup settings - say, stack initialization - it conflicts

with U-boot.

Have a great day,
Yuri

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Re: Creating applications for FLASH in ARM-DS-5

saida — Tue, 24 May 2016 12:48:50 GMT

Thank you YURI

but in DS-5 my startup code does init according to my application, i think it overrides u-boot initializations

with small routines in main() it is running but if i add some more functions than its not running

i think we have to re-implement __user_setup_stackheap() ?

ok if this is not true than how we have to create applications for embeding into flash

thanks

regards

saida

Re: Creating applications for FLASH in ARM-DS-5

Yuri — Mon, 06 Jun 2016 07:59:33 GMT

Hello,

yes, main() contains initialization of so called execitive system, that may be

incompatible with U-boot.

Regards,

Yuri.

Re: Creating applications for FLASH in ARM-DS-5

saida — Wed, 08 Jun 2016 11:24:17 GMT

But when i created a C project which doesn't have any assembly files, it is running fine

but with startup code jumping from __main to main() user function it is not running from u-boot (but up to __main it is working in u-boot)

if this is not correct

than how to build a application in DS5, which is stored in flash and copied to ram than running from ram after booting from u-boot

thanks and regards

saida

Re: Creating applications for FLASH in ARM-DS-5

Yuri — Thu, 16 Jun 2016 03:00:25 GMT

Hello,

I think it makes sense to apply to U-boot support regarding the issue.

WebHome < U-Boot < DENX

Regards,

Yuri.