TMS320F28379D: t-format encoder test using TMS320F28379DPTP

Dear All,

I'm testing a t-format encoder using TMS320F28379DPTP (HLQFP176) based own hardware.

The circuit is applied in the same way as the following figure and TMDSIDDK_v2.0 except 485 transceiver. (I'm using ISO3088DW for isolation.)

and source code from "C:\ti\controlSUITE\libs\app_libs\position_manager\v01_01_00_00\tformat\examples".

Encoder test using TMDSIDDK_v2.0 was successful, but when I tested it with my hardware, clock is generated in GPIO7 but GPIO25 (DATA_OUT) signal is not outputted.

Is there any check point for my case?

Sincerely,

Eui-heon