QUERY · ISSUE

sdcard.py - OSError: timeout waiting for response

openby Leniwcowatyopened 2021-03-18updated 2024-09-08

drivers

I am using 8 GB microSD card, format FAT32. During mount code detects it as v2 card, but gives "OSError: timeout waiting for response". Tried to format as 4 GB FAT, did not work.
Raspberry Pi Pico

CANDIDATE · ISSUE

Is it possible to mount 2 SD cards and write each of simultaneously?

openby MATTYGILOopened 2022-08-17updated 2022-08-17

enhancement

Hi I am using an esp32 with non blocking recording. So I create a thread which is the non blocking recording code. I mount 2 sd cards, sd0 and sd1. I am able to read from sd0. However, when I try to write to sd1 I get a timeout error:

OSError: timeout waiting for response

    if state == RECORD:
        time.sleep_ms(1)
        num_bytes_written = wav.write(mic_samples_mv[:num_read]) <--- Error occurs here
        num_sample_bytes_written_to_wav += num_bytes_written
        # read samples from the I2S device.  This callback function
        # will be called after 'mic_samples_mv' has been completely filled
        # with audio samples
        num_read = audio_in.readinto(mic_samples_mv)

Assessment

Q Qwen · high

Both issues report the same error message 'OSError: timeout waiting for response' related to SD card operations. However, they have different root causes and contexts. Issue #7051 is about SD card initialization failure on Raspberry Pi Pico (RP2 port) with 8GB microSD cards detected as v2, likely a hardware compatibility or timing issue during card detection. Issue #9064 is about concurrent writes to two SD cards on ESP32 during non-blocking audio recording, suggesting a bus contention or threading issue. The error manifests similarly but in different scenarios (initialization vs. concurrent writes, different ports, different root causes).

Suggested action

Keep both issues open as they address different problems. The shared error signature may be useful for cross-referencing, but the underlying causes and solutions are likely different.

sdcard.py - OSError: timeout waiting for response

Is it possible to mount 2 SD cards and write each of simultaneously?

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