I want to integrate the PDM microphone with thingy53, I found no particular sample code for it
Would be needing help from scratch
I want to integrate the PDM microphone with thingy53, I found no particular sample code for it
Would be needing help from scratch
Hi Rakshita
Have you tested the DMIC sample in the SDK?
It is not officially supported on the Thingy53, but it does support the nRF5340DK. If you copy and rename the nrf5340dk_nrf5340_cpuapp.overlay file to thingy53_nrf5340_cpuapp.overlay, and change the pins as necessary, I would expect the example to work on the thingy as well.
Not sure what you mean about repeating output? If I understand you correctly the clock output from the nRF53 is fine, but the data from the microphone seems wrong? Would you be able to attach a trace/scope capture?
Best regards
Torbjørn
Hi Rakshita
Have you tested the DMIC sample in the SDK?
It is not officially supported on the Thingy53, but it does support the nRF5340DK. If you copy and rename the nrf5340dk_nrf5340_cpuapp.overlay file to thingy53_nrf5340_cpuapp.overlay, and change the pins as necessary, I would expect the example to work on the thingy as well.
Not sure what you mean about repeating output? If I understand you correctly the clock output from the nRF53 is fine, but the data from the microphone seems wrong? Would you be able to attach a trace/scope capture?
Best regards
Torbjørn
Actually I checked the clk and data pin on dso but there was no clk
Also right now I have changed the build configuration to thigny53_nrf5340_cpuapp_ns and by that the clk and data pins got assigned on device tree but I am not able to observe thingy53 on serial terminal
dmic is not working with thingy53 even after changing the overlay files
Hi Rakshita
Could you try to build for thingy53_nrf5340_cpuapp instead of thingy53_nrf5340_cpuapp_ns?
I am also struggling to get it to work when building for the non secure target.
When building for thingy53_nrf5340_cpuapp I was able to see activity on the PDM clock line, which I routed to P0.08 so that it can be accessed from the debug and extension board.
I have included my modified dmic example below:
Best regards
Torbjørn
The PDM_CLK pin is at P1.09 right?
