S32 Micrium uCOSIII with UART DMA on MPC5744P

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S32 Micrium uCOSIII with UART DMA on MPC5744P

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embedded_eng
Contributor I

Hello,

 

can anyone help me with UART - DMA Tx on Freescale MPC5744P. Im using Micrium uCOSIII Operating system, and DMA_Tx_Init is in one of the tasks (before while loop).

When i'm using DMA for UART Tx without OS it works great, but when uCOS is involved, DMA isn't triggering.

 

I suppose there are some flaws in my code involving interrupts, but i can't find any bugs.

 

Are there any known issues with uCOSIII involving DMA and/or interrupts?

Also, i'm not sure, if there are any special interrupt or int_vector i should enable or set?

 

Thank you.

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qm1013
Contributor III

hello,  Iv Brl :

Do you have the example of the UCOSIII project on MPC5744P? Could you send me a Demo of UCOSIII on MPC5744P? 

thank you very much!

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