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TMS320F28388D: SDFM with AMC3306EVM

HanSeoung Lyoo
Intellectual 320 points
Part Number: TMS320F28388D
Other Parts Discussed in Thread: AMC3306EVM, C2000WARE

Hi,

SDFM function is implemented using 28388D_EVM, Docking station R4.1 and AMC3306EVM board.

The two boards are connected as shown in the figure below.

C2000Ware_v3.03.00 was used as a program example.

       

[Questions]

As a result of measuring SD_C1 using an oscilloscope, no clock is generated. I do not know what is the problem.

please answer me.

regards,

Lyoo.

  • +1
    TI__Guru 55700 points

    AMC3306 SD-modulator doesn't have internal oscillator. It expect clock signal to be fed from external source to CLKIN pin. You can use PWM to provide clock to the modulator and SD-Cx. Please use the schematics below as example which can be found in AMC1305 SD-modulator DS.

    Regards,

    Manoj