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TJA1105 test mode 1

Question asked by chao y on May 8, 2020
Latest reply on May 12, 2020 by Bulat Karymov


   The test mode 1 don`t work. My configuration is blow

write register:

Extended control register (Register 17) : 0x1846

Configuration register 1 (Register 18) :0x810

Basic control register (Register 0) : 0x2110


It means the bit LINK_CONTROL is disable.The test mode is 100BASE-T1 test mode 1

I read the register after i write it, it shows i had write successfully.

but i hadn`t detect the clock signal  at TXC and RXC , i hadn`t either detect any data at the  RXD[0:3],why?

I am not sure whether my configuration is right.

can you give me some suggestions?