Hi, I’m having some issue trying to talk to a chip over I2C.
The chip in question is the ATAES132 (https://cdn.sparkfun.com/datasheets/Dev/Beagle/Atmel-8760-CryptoAuth-ATAES132-Datasheet.pdf) on the cryptocape. Up to yesterday I could send command and read response packets from the Command memory register, but today the chip doesn’t appear anymore on the I2C bus.
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root@beaglebone:~# i2cdetect -y -r 1
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: – -- – -- – -- – -- – -- – -- –
10: – -- – -- – -- – -- – -- – -- – -- – --
20: – -- – -- – -- – -- – UU – -- – -- – --
30: – -- – -- – -- – -- – -- – -- – -- – --
40: – -- – -- – -- – -- – -- – -- – -- – --
50: – – -- – UU UU UU UU – -- – -- – -- – --
60: 60 – -- – 64 – -- – UU – -- – -- – -- –
70: – -- – -- – -- – --
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It was showing at the address 0x50. Trying to read from this slave address now gives me random bytes. Anyone has an idea on how to fix this ? Did I brick the chip ?