Post Go back to editing


Category: Software
Product Number: A2B2427
Software Version: CCES2.11.1/SIGMA STUDIO4.5


My A2B bus includes 3 node,one 2428 as master,two 2427(microphone) as slave nodes.i2c command list generated by sigma studio 4.5.

A2B config function returns success,but no output on TX0 of 2428,please help!

attachment include dsp code and sigma project.A2B_mic.rar

  • The Stream configuration were not done. So data received from Sub1 and Sub0 nodes were not transported to the Main node, which is your requirement.

    Right Click on the Target Processor and go to Stream Config and create two independent Slots under Audio Stream Definition. Go to Audio Stream Assignment and Assign one slot from Sub1 to Main and Another one from Sub0 to Main.

    Depending on your Codec's TDM , you need to configure the same TDM in Main node as well to transfer the data effectively.

  • Hi,

    DSP's TDM is is configured as 32bits 16channels,while export sigma project as c file it works well,but it can bot work while export as I2C command list.what is the difference?

  • this is not an expected issue. could you try by updating to SigmaStudio 4.6 or later revision and plugin version 19.4.X ?

  • Hi,

    I tried 19.4.4 plugin and sstudio 4.7,there is no output on master node either.if slave node change to ad2428,dsp can receive output it is strange,what is the different between ad2428 and ad2427?

Reply Children
No Data