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TMS470MF04207: JTAG(#45 TDO_HET24) doesn't respond. Schematic similarity.

Other Parts Discussed in Thread: TMS470MF06607, TMS470MF04207



My customer built a clone board of the TMDS470MF066HDK using [TMS470M_HDK_Schematics.pdf], but board doesn't respond to JTAG access. That is, no activities on the TDO_HET24 pin. The pin was held in GND level.

Q.  Could you please advise a point to check?
          -  All-pin voltages were compared to the board TMDS470MF066HDK.
          -  Two types of JTAG was tried. (xds100v2 and IAR.) 

Q.  I hope the schematic [TMS470M_HDK_Schematics.pdf] is completely compatible to the TMDS470MF066HDK, but is that true?  When the PDF s opened the schematic title is "ARGOBOARD".



p.s. On the customer clone board the uC is not TMS470MF06607 but TMS470MF04207.