FS does not mount with CP3.0 on itsybitsy_m0_express

[jerryneedell]

I am finding that when I flash CP 3.0 to my itsybitsy_m0 _express, my Ubuntu linux system is not recognizing the FS.

It works fine if I flash CP 2.x

dmesg output when FS fails with 3.0

[168355.572364] usb 3-3.2: New USB device found, idVendor=239a, idProduct=000f
[168355.572370] usb 3-3.2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[168355.572373] usb 3-3.2: Product: ItsyBitsy M0 Express
[168355.572376] usb 3-3.2: Manufacturer: Adafruit Industries
[168355.573052] cdc_acm 3-3.2:1.0: ttyACM0: USB ACM device
[168355.575705] usb-storage 3-3.2:1.2: USB Mass Storage device detected
[168355.576124] scsi host8: usb-storage 3-3.2:1.2
[168355.577266] hid-generic 0003:239A:000F.0027: hiddev1,hidraw3: USB HID v1.00 Device [Adafruit Industries ItsyBitsy M0 Express] on usb-0000:00:14.0-3.2/input3
[168356.587395] scsi 8:0:0:0: Direct-Access     ItsyBits y M0 Express     1.00 PQ: 0 ANSI: 2
[168356.588349] sd 8:0:0:0: Attached scsi generic sg2 type 0
[168356.589610] sd 8:0:0:0: [sdc] 8000 512-byte logical blocks: (4.10 MB/3.91 MiB)
[168356.589830] sd 8:0:0:0: [sdc] Write Protect is off
[168356.589834] sd 8:0:0:0: [sdc] Mode Sense: 0f 00 00 00
[168356.590016] sd 8:0:0:0: [sdc] No Caching mode page found
[168356.590023] sd 8:0:0:0: [sdc] Assuming drive cache: write through
[168356.598382]  sdc:
[168356.599868] sd 8:0:0:0: [sdc] Attached SCSI removable disk
[168378.003723] usb 3-3.2: USB disconnect, device number 80
[168378.063064] FAT-fs (sdc): unable to read boot sector to mark fs as dirty

On failed boot the Dotstar turns BLue which should indicate "Circuit python is starting up".....

[jerryneedell]

This is reproducible - 2.x loads and boots consistently. 3.0 does not . Dotstar turns blue and nothing happens. I tried connecting it to a Mac with same result. Also force it to create a new File system - no change in results.

[siddacious]

I may have seen some strangeness with 3.0 on the bitsy but I was under the impression that @tannewt recently fixed something with the flash for it that had been causing issues. I'll test again and report back.

[tannewt]

I am changing it with the DMA work so I'll take a look at it after.

[tannewt]

It works for me with the changes from #663

[siddacious]

Doesn't seem to work for me with the changes you mentioned

[tannewt]

@siddacious and @jerryneedell can you send me the text from the top of the flash chip? We may have different ones. Feel free to send a picture of the board.

[jerryneedell]

Sure, but It’ll be late tonight or more likely tomorrow before I can. I have not tried the latest version yet an will do that as well.

[tannewt]

No rush! Thanks for the help!

On Mon, Mar 12, 2018 at 1:33 PM jerryneedell notifications@github.com wrote:

Sure, but It’ll be late tonight or more likely tomorrow before I can. I have not tried the latest version yet an will do that as well.

— You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub https://github.com/adafruit/circuitpython/issues/655#issuecomment-372452759, or mute the thread https://github.com/notifications/unsubscribe-auth/AADNqVm1JDowA8vwCfKimlZPLFSs2SVBks5tdtuBgaJpZM4SZPVU .

[tannewt]

I think some FS weirdness was introduced with the latest ASF with 9b4477e1dc088d18127838310b828514cb33edea. I'm looking into it now.

[jerryneedell]

My ItsyBitsy_m0_espress works fine with the latest build:

Adafruit CircuitPython 3.0.0-alpha.2-17-g9d928b5-dirty on 2018-03-12; Adafruit Itsy Bitsy M0 Express with samd21g18
>>> 

Even the dotstar works! trying to read the flash chip markings....

[jerryneedell]

is this the right chip? 

[tannewt]

Yup! I think so. I'll need to compare with the datasheets tomorrow.

I think it may actually be a code bug too. If you have time, try with commit 9c5a9e34118532bd54d92c9f968534ad9f9409ae (before the latest asf4 update).

[jerryneedell]

Built BOARD=itsybitsy_m0 (old name) from commit 9c5a9e34118532bd54d92c9f968534ad9f9409ae

This version fails - no FS mounted - dotstar turns green for a few seconds then turns off - repeats.

[jerryneedell]

Restored current master - working fine.

[tannewt]

@jerryneedell thats weird! I expected 9c5a9e3 to work and current master to not work. Going heads down on usb shortly to see what I find.

[jerryneedell]

This version does not work for me - itsybitys just goes to a solid blues dotstar - no FS mount as before:

[443568.884692] sd 7:0:0:0: [sdc] Attached SCSI removable disk
[443591.740704] usb 3-3.2: USB disconnect, device number 47
[443591.823432] FAT-fs (sdc): unable to read boot sector to mark fs as dirty

[jerryneedell]

do you want to reopen this one or should I create a new issue.