TMS320F280049C: M-POST duration too long

Cuong Tran

Part Number: TMS320F280049C
Other Parts Discussed in Thread: C2000WARE

Hello everyone,

I need your help with M-POST feature.

After enabling M-POST (by configuring the the Z1-OTP-BOOT-GPREG2 register), boot duration of my devices increase by 5s. SPRACI7A document mentions that depending upon the device configuration, the test will take approximately 50,000,000 INTOSC2 (10MHz with TMS320F280049C) cycles to complete the test, so:

1. The 5s increase in boot time is normal, isn't it?

2. What device configuration can be applied to minimize the duration of M-POST?

Thanks,
Cuong.

over 3 years ago

+1 Baskaran Chidambaram over 3 years ago

TI__Genius 17370 points

1. Yes this is the expected duration in F28004x devices. However this is optimized (to approx 25ms) in later devices like F28003x

2. Unfortunately F28004x don't have any configuration to optimize this.

Regards

Baskaran

0 Whitney Dewey over 3 years ago

TI__Guru 53195 points

We do have some RAM tests in the Software Diagnostic Library you could use instead. You could run these software tests shortly after the boot ROM jumps to the flash entry point but before calling c_int00.

Look for the STL_March code the SDL found in <C2000Ware install dir>\libraries\diagnostic\f28004x

Whitney

0 Cuong Tran over 3 years ago in reply to Baskaran Chidambaram

Prodigy 10 points

Thank you for clearing that up.

Regards,

Cuong

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TMS320F280049C: M-POST duration too long