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ADSP-21469 connect issue

Question asked by AngusZhao on Dec 9, 2010
Latest reply on Feb 11, 2015 by alex34

Test Report for ADSP-21469 connect Issue


  1. Background:


Now I am designing ADSP-21469 for one applications.  I have ever tested ADSP-21469 engineer  sample in target board . Recently I got 5pcs ADSP-21469 samples .  But I  found the new silicon ADSP-21469 can’t connect with ADZS-HPUSB-ICE by VisualDSP++5.0 ( update 7 and 8)  tool.


  1. Test Report:



Below is the further detail test issue .

  1. Connect ADZS-HPUSB-ICE to customer’s target board.
  2. Test ADZS-HPUSB-ICE tool – OK
  3. Connect section of ADSP-21469 -- failure
  4. Then discuss with ADI engineer  for this issue, below is test result

a)         Change JTAG connect solution with old and new schematic from old and new eval board schematic ;

b)        Clock test : 25Mhz is ok ;

c)         Power supplies : 3.3V, 1.8V, 1.2V are OK ;

                        i.               Test is similar with datasheet timing ;


d)        Switch boot mode of FlashRom to SPI boot to connect JTAG ;

                        i.              Not work ;

e)         System clock test of DDR ;

                        i.              No output;

f)         After power on, test DDR clock under internal Rom boot ;

                        i.              Can’t find clock output under boot mode setup ( 011)

                      ii.              ADSP-21469 eng has clk of DDR output

g)        Reset test ;

                        i.               We can find the good reset signal

h)        Test the chip ;

                        i.              Not hot , I think this part is not work ;


So I don't what I wrong ?