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groupgets / kimchi-micro

An open hardware embedded SBC for the NXP i.MX8M Mini application processor
https://kimchi.groupgets.com/
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Type-C port will not take host role #4

Closed kekiefer closed 4 years ago

kekiefer commented 4 years ago

Type-C port controller PTN5110 (U9) not showing up in i2cdetect. This part should be located at 0x50 on i2c3, but does not show up in a scan:

root@kimchi:~# i2cdetect -y 2
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
00:          -- -- -- -- -- -- -- -- -- -- -- -- -- 
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
50: -- -- -- -- -- -- -- 57 -- -- -- -- -- -- -- -- 
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
70: -- -- 72 -- -- -- -- --
kekiefer commented 4 years ago

Pins 7 and 8 (SDA/SCL) are swapped on the schematic.

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Fix by cut and jump to pull up resistors R19/R20

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