TMS320F28P650DK: How can I run the dclfuncs in the CPU2's RAM when it was boot by CPU1?

songmingbo

Part Number: TMS320F28P650DK

Tool/software:

Hi, TI's engineers.

I failed run the assembly dclfuncs in the CPU2's ram, the CPU2 was boot by CPU1 by IPC. I allocated the '.dclfuncs' section in the RAMD4 and allocated the RAMD4 to CPU2, but How can I copy the dclfuncs from FLASH to RAM after the CPU2 start?

10 months ago

+1 Sira Rao80 10 months ago

TI__Mastermind 25970 points

I would think the normal process we use to copy code from Flash to RAM should be applicable here as well, using the memcpy() in user code, in device_init(), for example of CPU2, which is called in main() of CPU2:

memcpy(&RamfuncsRunStart, &RamfuncsLoadStart, (size_t)&RamfuncsLoadSize);

Some helpful references:

https://software-dl.ti.com/ccs/esd/documents/sdto_cgt_Linker-Command-File-Primer.html#load-at-one-address-run-from-a-different-address

0 songmingbo 10 months ago in reply to Sira Rao80

Prodigy 165 points

Thank you for your suggestion, I am reading this reference.

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TMS320F28P650DK: How can I run the dclfuncs in the CPU2's RAM when it was boot by CPU1?