dsp/bios pspdrver audiosample example

Jagdish Patange

I am working on evml137.

I have installed pspdrivers and edmalld drivers. I am trying to run an example called 'audiosample' which reads from and writes to aic3106 codec.

In this example i2c,Mcasp,Aic310 and audio drivers are used. It uses dsp/bios.

In this example ecm is enabled and event0, event1, event2 and event3 are mapped to int7, int8, int9, and int10 and in main file for mcasp driver interrupt number is set to int8. with this configaration example works fine. I have disabled (commented )the mcasp driver interrupt number as i am using edma , then also it works fine.

But if i map event0, event1, event2 and event3 to int4, int5, int6, and int7 then it is not working. In ROV window it displays echo task as unknown and idle running.

why it is so?

I am asking this question because i am trying to merge uartsample and audiosample examples as two tasks and i am getting the task status as unknown. suggest me how to solve this problem.

Thanks n regards

Jagdish patange

dm(d),

HAL hyderabad India

over 12 years ago

0 Ashish Kapania over 12 years ago

TI__Mastermind 21645 points

Hi Jagdish,

What version of DSP/BIOS are you using ? Also did you make sure no one is using int4/5/6 before mapping the events to them ?

Best,

Ashish

0 Jagdish Patange over 12 years ago in reply to Ashish Kapania

Intellectual 290 points

I am using dsp/bios 5.41.11.38 version and and int4/5/6 are not used for any other purpose. I have simply modified the 'audiosample' example given in pspdrvers example folder.

0 Ashish Kapania over 12 years ago in reply to Jagdish Patange

TI__Mastermind 21645 points

Hi Jagdish,

Can you paste a code snippet showing how you are mapping the events to interrupts 4,5,6,7 ?

Best,

Ashish

0 Jagdish Patange over 12 years ago in reply to Ashish Kapania

Intellectual 290 points

I have attached the 'audiosamp_3' project.

In this i have combined audio example and uart example as two tasks. Uart task works fine but audio task status shows as 'unknown'.

is it due to ecm? how to solve this?

Thanks n regards

Jagdish Patange

slrdc hal hyderabad

audiosamp_3.rar

0 judahvang over 12 years ago in reply to Jagdish Patange

TI__Mastermind 32475 points

Jagdish,

Have you made any progress on your problem?

You said that you changed the project to use ECM for int4, int5, int6, int7 but the attached project is still using ECM for int7, int8, int9, and int10.

"unknown" could mean different things. First, it could mean that the Tsk state is corrupted. Second, it could be that the Tsk is not yet initialized. This would depend on when you looked at the ROV. This is unrelated to the ECM usage.

Judah

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dsp/bios pspdrver audiosample example