Tool/software:
Hello,
Is there any example or can you help me to setup DMA to send and receive via I2C ?
I need to read H&T sensor via I2C and since the maximum speed is 400K it would be too big delay in my application so I planned to leave that job to DMA.
I didn't find that I2C DMA mode is implemented at all in the SDK. I am now working on AM263x LaunchPad but in future this will work on AM2631.
Can you help me how to do this?
I need to read H&T sensor via I2C and since the maximum speed is 400K it would be too big delay in my application so I planned to leave that job to DMA.
I didn't find that I2C DMA mode is implemented at all in the SDK. I am now working on AM263x LaunchPad but in future this will work on AM2631.
Can you help me how to do this?
Yes we have DMA event generation mechanism for I2C transaction. DMA event generation logic that synchronizes data reception and data transmission in the I2C module for
DMA transmission. There are two DMA event one for Tx and one for Rx.
Hi Luka,
We do not have a dedicated example but you can refer to this lab:AM26x Enhanced Direct Memory Access (EDMA) Lab
Use edma syscfg to select dma trigger event.
Hope this helps.
