startup_TM4C123.s EPI interrupt handler

khaled saab

Genius 3155 points

Hi,

I can't find the EPI interrupt in startup_TM4C123.s (see attached).

From what I read, I should be interrupt #52 or #53.

Khaled.startup_TM4C129.s

over 9 years ago

0 khaled saab over 9 years ago

Genius 3155 points

Found the problem: it was named EBI0_Handler.
This is said, uDMA seems to starts properly, but I don't get a uDMA done interrupt i.e. I don't break into the EBI0_Handler( ) function.
I will look further into it.
Khaled.

0 Petrei over 9 years ago in reply to khaled saab

Guru 26105 points

Hi,

Not clear info: looking for startup file for TM4C123 and posting a file for TM4C129!

The file posted is for Keil - there are file(s) for 129 written by TI, named startup_rmvdk.s (for keil) - look into Tiva.

0 khaled saab over 9 years ago in reply to Petrei

Genius 3155 points

Here is a self containing set of files and the corresponding uVision project DSP1000_Phase2M4_Epi_2.zip.

Again, I got to the point where uDMA seems to be starting but not finishing (don't break in A_EPI.c/EPI0_Handler( )).

Any help is appreciated.

thanks.

Khaled.

0 khaled saab over 9 years ago in reply to khaled saab

Genius 3155 points

forgot to mention: the uVisioin project is located in DSP1000_Phase2M4_Epi_2\cortex\Project\adaptivebrd.uvprojx

Khaled.

0 khaled saab over 9 years ago in reply to khaled saab

Genius 3155 points

Hi,
Did further debug and it seems that uDMA write is not even starting:
a NON uDMA write followed by a NON uDMA read works fine.
a uDMA write followed by a NON uDMA read dosn't.

Added the call to EPIDMATxCount( ) function but no success.
Khaled.

0 khaled saab over 9 years ago in reply to khaled saab

Genius 3155 points

I'm closing this post and adding a new one with a more meaningful title and a more compact code.
Check e2e.ti.com/.../521050
Khaled.

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startup_TM4C123.s EPI interrupt handler