topic Re: T1042D4RDB bare-board project in T-Series

T1042D4RDB bare-board project

erpay — Tue, 25 Jun 2019 11:35:06 GMT

Hi,

I have a T1042D4RDB-PA board. I want to run a bare-board program on it but I am new to PPC concept. I create a bare-board project on codewarrior and load it to RAM via u-boot using tftp etc. But when I try to boot it, it always crashes.

What should I do ? Is there any other toolchain for this ?

I want to hear every advice,

Thanks

Re: T1042D4RDB bare-board project

alexander_yakov — Sun, 30 Jun 2019 16:56:39 GMT

"Bare-board" project assumes the board is "bare" (does not have any initialization software), connected to CodeWarrior via debugger connection, used to debug the project. In case of U-boot, the board is not "bare", because some board initialization steps are done already by U-boot. The U-boot may be used to run binary application, however. The most probable reason, why application may crash - is an access to invalid memory location. For example, your application expects CCSR memory space has one offset, but this offset was changed by U-boot. This result to bus error when trying to access memory-mapped device register.

For example, the following topic discusses similar issue:

https://community.nxp.com/thread/448107

Re: T1042D4RDB bare-board project

erpay — Sun, 30 Jun 2019 19:01:10 GMT

Hi,

Thanks for the reply, now I understand what I need is standalone program after u-boot process. So what are my choices ? I see there is a standalone part in u-boot is there another alternative for standalone ? Can I do it with code warrior, ELDK or something ?

Thanks

Re: T1042D4RDB bare-board project

alexander_yakov — Wed, 03 Jul 2019 21:14:35 GMT

By default, CodeWarrior produces standalone project.

Re: T1042D4RDB bare-board project

erpay — Tue, 30 Jul 2019 13:41:23 GMT

I compile an elf file with CW for the board and load it. But when I try to run it with bootlelf it crashes. Where should I start to solve this problem ?

Re: T1042D4RDB bare-board project

alexander_yakov — Sun, 11 Aug 2019 20:05:32 GMT

Please make sure CCSR address space offset is correct. Please see my first reply to this topic for more details.

Re: T1042D4RDB bare-board project

erpay — Sat, 26 Oct 2019 20:51:52 GMT

Hi, we solve the problem by removing all files that have some kind of dependence.