TDA4VM: r5f rtos :How does serial DMA receive indefinite length data?

Hi Chen,

For which module, do you want to receive indefinite data? are you using TR based descriptor to receive data? If it is, there is a way to configure TR to receive indefinite amount of data.

Regards,

Brijesh

yes ,I want to receive indefinite data, uart module,What shall I do?

You could use API with the value 0x1FF to indefinitely receive data.. But this is possible for TR based transfer. 

 CSL_udmapCppi5TrSetReload((CSL_UdmapCppi5TRPD*)pTrpd, 0x1FF, 0U);

Regards,

Brijesh

What do you mean by TR

Is there a demo application

The DRU receives commands to transfer data from one location to another called Transfer Requests (TRs)

Pls see below chapter in TRM

10.1.2.2.4 Transfer Request Descriptor

Hi Gary,

Do you have any query here with respect to TRs?

Regards,
Parth