iMX51 and boundary scan

[allians-spb]

When connected via JTAG, 3 devices are detected. Using TOPJTAG! Two devices are known - the i MX51 chip itself and the core! The third device is identified with ID=0, most likely it is SDMA! IR length?

[allians-spb]

Thanks!!! Now you can control the legs!!! And there is only one device - iMX51!

[allians-spb]

JTAG_MOD и так подтянут к GND! JTAG работает, только программа находит неизвестное устройство с ID=0 и отказывается работать!

JTAG_MOD and so pulled up to GND! JTAG works, only the program finds an unknown device with ID=0 and refuses to work!

[igorpadykov]

Hi Sergei

I am very sorry, correct is : JTAG_MOD should be high for bsdl.

Best regards
igor

[igorpadykov]

Hi Sergei

JTAG_MOD should be high for bsdl, when low one can see chain

similar to Figure 8-3. i.MX/Cortex-A8 RVDS JTAG Scan Chain

i.MX53 System Development User’s Guide

Best regards
igor
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