AFE7921: Some question about latte and AFE79xxEVM_ GUI version

zhansheng chen

Part Number: AFE7921

Tool/software:

HI,

We are using AFE79xxEVM_ GUIv1p10_ Installer on our board and we found the following problem, can provide AFE79xxEVM_ GUIv1p9_ Installer software for comparison?

1.If 204B is set to 48410, an error will be reported when it is linked to the FPGA, and 24410 is OK,our FPGA 204B is set to 48410,but AFE7921 set to 48410 is can not link to my FPGA,and AFE7921 set to 24410 can link to my FPGA . However, having someone else use our 48410 py script to run the configuration on the AFE79xxEVM_ GUIv1p9_ Installer will work fine.

2.The file size we generated with AFE79xxEVM_ GUIv1p10_ Installer is 395kb. However, when I let someone else use our py script to generate 503kb, I found a lot more Information in comparison.

3.The configuration we generated using the AFE79xxEVM_ GUIv1p10_ Installer consumes 1.5W more power than someone else's configuration using AFE79xxEVM_ GUIv1p9_ Installer with the same py script

3 months ago

+1 Aman Thombre 3 months ago

TI__Expert 4330 points

Hi Mr. Chen,

I'm not sure I have the 1p9 version of Latte on hand, but it is possible that there was some bug on 1p10 which does not like the '48410' LMFS setting. I recommend downloading the latest version (2p5) of Latte on our secure resources folder, at https://www.ti.com/secureresources/AFE79XX-WI-DESIGN:

Please note that in AFE79xx Latte, if you are using the AFE7921, you will need to set the chipVersion parameter in setup.py to 0x13, as below (0x20 is the default, used for some other AFE79xx parts). Other than that, it is the same process of running setup.py, devInit.py, then your bringup script.

If you still run into issues using AFE79xx Latte 2.5, please send me your configuration script (we can do this via private E2E message or via email), and I can take a look.

Thanks!

Aman