Comments (3)
garywangcn
commented on July 17, 2024
For I2S chip, an additional I2C interface is required to read/write registers, so the I2C pin should be work as I2C.
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frank-w
commented on July 17, 2024
ok,is that really i2c1? i ask because on gpio there is i2c0 (pins 3+5) and i2c1 (pins 27+28). if i2c1 is used for communication to audio-chip, there must be master/slave for it if someone will use i2c1 on gpio. that can be difficult to control the chipselects (only one have to be selected...and the user does not know when audio-CS is set). if both CS are enabled, the slave can be accessed by its address.
from bpi-r2-bsp.
frank-w
commented on July 17, 2024
on BPI-R2 there is no audio:
http://forum.banana-pi.org/t/has-anyone-added-an-rtc/5004/11
from bpi-r2-bsp.
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