Re: Using the DRAWS hat with a Raspberry Pi 4 #draws #yaac #install #js8call #replacecompass


Basil Gunn
 

Just adding the lines to /boot/config.txt didn't get the tlv modules
to load and I could not see the sound card. If I put those lines
before the drtparam=audio=-on then aplay -l said there is no sound
card found.
Provide the output of showudrc.sh describing what you did doesn't work
for me.

lsmod | grep -i tlv320*

snd_soc_tlv320aic32x4_i2c 16384 27
snd_soc_tlv320aic32x4 40960 1 snd_soc_tlv320aic32x4_i2c
snd_soc_core 192512 5 vc4,snd_soc_simple_card_utils,snd_soc_bcm2835_i2s,snd_soc_tlv320aic32x4,snd_soc_simple_card
snd_pcm 102400 8 vc4,snd_pcm_dmaengine,snd_soc_bcm2835_i2s,snd_soc_tlv320aic32x4,snd_bcm2835,snd_soc_core
snd 73728 14 snd_compress,snd_timer,snd_soc_tlv320aic32x4,snd_bcm2835,snd_soc_core,snd_pcm

This works with the latest version of Raspbian which uses this Linux
kernel

uname -r
4.19.57-v7l+

If you do not see the udrc driver enumerated:

aplay -l | grep udrc

card 1: udrc [udrc], device 0: bcm2835-i2s-tlv320aic32x4-hifi
tlv320aic32x4-hifi-0 []

then you are not using the latest Raspbian image it's that simple.

Also Beta image 13 works as long as you do NOT do an upgrade.

It would not be to blow it off until after some hamfest more than a
month down the way.
It's 2 weeks a way, thanks for your concern.

/Basil

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