seeed xiao ble circuitpython 9.1.1 bluetooth, core code crashed hard whoops!

[ozzloy]

CircuitPython version

adafruit-circuitpython-bundle-9.x-mpy-20240730
adafruit-circuitpython-seeed_xiao_esp32c6-en_US-9.1.1.bin
seeed xiao ble

Code/REPL

from adafruit_ble import BLERadio

radio = BLERadio()
print("scanning")
found = set()
for entry in radio.start_scan(timeout=60, minimum_rssi=-80):
    addr = entry.address
    if addr not in found:
        print(entry)
    found.add(addr)

print("scan done")

Behavior

Auto-reload is on. Simply save files over USB to run them or enter REPL to disable.
code.py output:
scanning
ESP-ROM:esp32c6-20220919
Build:Sep 19 2022
rst:0xc (SW_CPU),boot:0x1f (SPI_FAST_FLASH_BOOT)
Saved PC:0x4001975a
SPIWP:0xee
mode:DIO, clock div:2
load:0x40875720,len:0x124
load:0x4086c410,len:0xbe0
load:0x4086e610,len:0x2360
entry 0x4086c410

Auto-reload is off.
Running in safe mode! Not running saved code.

You are in safe mode because:
CircuitPython core code crashed hard. Whoops!
Hard fault: memory access or instruction error.
Please file an issue with your program at github.com/adafruit/circuitpython/issues.
Press reset to exit safe mode.

Press any key to enter the REPL. Use CTRL-D to reload.

then after hitting reset and reconnecting serial console:

Auto-reload is on. Simply save files over USB to run them or enter REPL to disable.
code.py output:
scanning
<Advertisement flags=<AdvertisingFlags general_discovery le_only > >
<Advertisement flags=<AdvertisingFlags  > >
scan done

Code done running.

Press any key to enter the REPL. Use CTRL-D to reload.

Description

i'm trying to scan using bluetooth. i wouldn't be surprised if i needed to copy over another directory or something.

Additional information

No response

[ozzloy]

got some help in discord, tried this sample code https://github.com/adafruit/Adafruit_CircuitPython_BLE/blob/main/examples/ble_simpletest.py got this output

Auto-reload is on. Simply save files over USB to run them or enter REPL to disable.
code.py output:
scanning
ESP-ROM:esp32c6-20220919
Build:Sep 19 2022
rst:0xc (SW_CPU),boot:0x1f (SPI_FAST_FLASH_BOOT)
Saved PC:0x4001975a
SPIWP:0xee
mode:DIO, clock div:2
load:0x40875720,len:0x124
load:0x4086c410,len:0xbe0
load:0x4086e610,len:0x2360
entry 0x4086c410

Auto-reload is off.
Running in safe mode! Not running saved code.

You are in safe mode because:
CircuitPython core code crashed hard. Whoops!
Hard fault: memory access or instruction error.
Please file an issue with your program at github.com/adafruit/circuitpython/issues.
Press reset to exit safe mode.

Press any key to enter the REPL. Use CTRL-D to reload.

[ozzloy]

after hitting reset and reconnecting serial, running the same sample code,

i saw meaningful output:

Auto-reload is on. Simply save files over USB to run them or enter REPL to disable.
code.py output:
scanning
<Address 66:df:81:01:b7:62> <Advertisement flags=<AdvertisingFlags  > >
        Advertisement(data=b"\x0e\xff\x03\x37\x51\x10\x7a\x87\xdb\x36\xcd\xbc\x36\x54\x56\x02\x01\x18\x03\x03\xbe\xfe")

<Address cd:d0:37:da:bc:11> <Advertisement flags=<AdvertisingFlags general_discovery le_only > >
        Advertisement(data=b"\x02\x01\x06\x0d\x16\xed\xfe\x02\x00\x95\xd6\x76\xd8\xd9\x53\xfc\x90\x03\x03\xed\xfe")

<Address 4e:79:a7:6a:95:48> <Advertisement flags=<AdvertisingFlags  > >
        Advertisement(data=b"\x11\xff\x03\x37\x51\x10\x3a\x07\xa2\x37\xa7\x26\x52\x01\x93\x1a\xf5\x2b\x02\x01\x18\x03\x03\xbe\xfe")

<Address 47:31:ca:40:1d:4b> <Advertisement flags=<AdvertisingFlags  > >
        Advertisement(data=b"\x11\xff\x03\x37\x51\x10\x3a\x07\xa2\x37\xa7\x26\x52\x01\x93\x1a\xf5\x2b\x02\x01\x18\x03\x03\xbe\xfe")

<Address 54:56:4f:d5:c7:14> <Advertisement flags=<AdvertisingFlags  > >
        Advertisement(data=b"\x11\xff\x03\x37\x51\x10\x3a\x07\xa2\x37\xa7\x26\x52\x01\x93\x1a\xf5\x2b\x02\x01\x18\x03\x03\xbe\xfe")

<Address 69:83:9e:2b:37:04> <Advertisement flags=<AdvertisingFlags  > >
        Advertisement(data=b"\x11\xff\x03\x37\x71\x10\x3a\x07\xa2\x37\xa7\x26\x52\x01\x93\x1a\xf5\x2b\x02\x01\x18\x03\x03\xbe\xfe")

[dhalbert]

Need to test on another board we have.

[ozzloy]

let me know if you think of anything i could do to help out.

do you have recommendations on "getting started on bluetooth firmware troubleshooting" reading? i have experience writing C and have written simple firmware for stepper motors and sonar sensors. any pointers would be greatly appreciated.

[dhalbert]

Could you try 9.2.0-alpha.2351 for this board?

[ozzloy]

good news! it has yet to crash! thanks for the update!

more details

with this code:

from adafruit_ble import BLERadio
ble = BLERadio()
ble.name

i see this output:

code.py output: CIRCUITPY2262ba

with this code:

from adafruit_ble import BLERadio
from adafruit_ble.advertising.standard import ProvideServicesAdvertisement
from adafruit_ble.services.nordic import UARTService

ble = BLERadio()
uart = UARTService()
advertisement = ProvideServicesAdvertisement(uart)

ble.start_advertising(advertisement)
while True:
    # Normally other work would be done here after connecting.
    pass

i can see CIRCUITPY2262ba on my phone! but not from my computer. i saw it on my computer after turning the bluetooth off and back on.

i'll test more in 9ish hours

i'll have to try more stuff with it more after getting some sleep.

code pointers, ### please if you happen to know where it is, can you point me to the part of https://github.com/adafruit/Adafruit_CircuitPython_Bundle that made the difference? i would like to read it over to see what's involved.

thanks again!

[tannewt]

good news! it has yet to crash! thanks for the update!

Looks like it is fixed in the alpha with the IDF and BLE updates. Closing.