CCS/TIDA-01604: Boot from Flash

r sundar

Part Number: TIDA-01604
Other Parts Discussed in Thread: SFRA

Tool/software: Code Composer Studio

Hi Manish, We are not able to run 01604 from standalone Flash.

We followed every single step described in multiple documents (01604, F280049 ControlCard Guide and Schematic, F280049 Manual), also described in related threads in this Forum, too numerous to list here.

Here's a summary of action and results:

1. Loaded code with the Load menu in CCS, S1:A set to 11, S1 set to 11: 01604 functions normally. S1 was set to 11 with both switches in the UP position.

2. AC Power turned off, Logic power still on, S1:A set to 01, USB disconnected: AC applied, 01604 functions normally.

3. AC and Logic power off, S1:A at 01, S1 at 11: Logic power on, Red light indicating code execution does not turn ON; AC power applied, unit not functioning.

4. Tried loading with the Flash button of CCS menu, same result.

Here are couple of screenshots relating to this issue:

Looks like Flash is enabled and flash-lnk.cmd is generated. Load command does Erase and Rewrite Flash every single time. But when the logic power is turned off, it appears as though the Flash is erased!

So is the Flash not written to, and the code loaded to RAM instead?

If the code is written to Flash, is there an issue with startup boot from Flash?

Best Regards,

Sundar

over 5 years ago

0 Manish Bhardwaj over 5 years ago

TI__Mastermind 43730 points

Sundar,

There are a few bugs we are tracking that prevent the EABI code from running from FLASH

1. add entry_point to the code to be code_start

2. disable watchdog in the codestart branch.asm

3. Also make sure your FPUmathtables are in FLASH and SFRA libray is linked into RAM

hopefully, with the above three, you should be able to resolve this issue. We plan to fix this in 3Q SDK release.

0 Manish Bhardwaj over 5 years ago in reply to Manish Bhardwaj

TI__Mastermind 43730 points

0 Manish Bhardwaj over 5 years ago in reply to Manish Bhardwaj

TI__Mastermind 43730 points

I have copied above from F28377xD project, some options may be different for F28004x but these are the key changes in EABI to boot from flash

0 r sundar over 5 years ago in reply to Manish Bhardwaj

Prodigy 130 points

Hi Manish, encountered problem with FLASHN, page = 0 :

"../f28004x_flash_lnk.cmd", line 107: error #10099-D: program will not fit into available memory, or the section contains a call site that requires a trampoline that can't be generated for this section. placement with alignment/blocking fails for section "FPUmathTables" size 0xd0page 0

Should this be different for 280049?

Another interesting find: Project compiles with no errors when CCS is not connected to the target hardware.

Your help is greatly appreciated!

Thanks!

Best Regards,

Sundar

0 Manish Bhardwaj over 5 years ago in reply to r sundar

TI__Mastermind 43730 points

Sundar,

You can put the FLASH in a different section that is available on the F28004x, could be FLASHC/D etc..

-Manish

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CCS/TIDA-01604: Boot from Flash