SDK15.3 USB_MSC example does not work properly

[Nandi]

Hi,

In SDK15.3 USB MSC example can't  work.

First, the computer does not recognize the USB MSC device and initializes it normally after calling nrfx_systick_init.

Secondly, although the computer can recognize that the file operation cannot be performed at that time, once the operation causes the USB MSC to be stuck.

 The project is more urgent, What can I do to get it back to normal?

Debugging environment

development software : SDK15.3

Computer platform : window7/10

hardware : PCA10056

[Sigurd]

Hi,

What version of the PCA10056 do you have ?

[Nandi]

PCA10056

0.9.3

2017.40

[Sigurd]

The PCA10056 V0.9.x has engineering A mounted on it, and workarounds for older engineering revisions have been removed from SDK v15, and we recommend using the latest production release of the silicon for development. 

I would strongly recommend that you develop on a nRF52840-DK, PCA10056 1.0.0, as this uses the production silicon.

[Nandi]

If I want to support it on version 0.9.3, what do I need to do?

In addition, can the mass-produced chips be supported normally?

Can I replace the 52840 chip on the 0.9.3 version with the production chip as the 1.0.0 version?

[Nandi]

I just changed the chip to N52840 QIAAC0 1829DF, still not working properly

[Sigurd]

Nandi said:

If I want to support it on version 0.9.3, what do I need to do?

 Add back the workarounds. But, I do not recommend this. I recommend to get a nRF52840-DK.

Nandi said:

In addition, can the mass-produced chips be supported normally?

Yes, they should work.

Nandi said:

Can I replace the 52840 chip on the 0.9.3 version with the production chip as the 1.0.0 version?

No, there are differences in the reference design between PDK 0.9.3 and DK 1.0.0, e.g. the radio will not work with 0.9.x and a non-engineering A chip. See this post. The USB might work, but there might be differences with the reference design when it comes to USB aswell.

Nandi said:

still not working properly

 What is not working? Does the device enumerate?

[Nandi]

Yes, the device can be enumerated, but the file operation can not be performed. In our product (nRF52840-QIAAC0) debugging with sdk15.3 also has the same problem, and sdk15.0 is normal, I suspect that there is some problem with the msc class of sdk15.3. Can you use your hardware platform to try the usb msc example of sdk15.3 ? 

[Sigurd]

Hi,

I have not been able to reproduce any issues here.

Do you see the same issue with SDK 15.2 ?

What logical unit are you using ? (e.g. RAM,EMPTY,QSPI,SDC)

Nandi said:

sdk15.0 is normal

There was actually a bug in SDK 15.0 on this, see this post, but this is fixed in later versions.

[Nandi]

Tested after the SDK15.0 bug was changed. In addition, SDK15.2 is the same as SKD15.3. I also have problems with the board version 1.0.0. Even the LEDs are not lit. The phenomenon of version 0.9.3 is able to enumerate the devices but cannot manipulate the files. You are sure that you have nothing. issue? I can easily reproduce it.

[Nandi]

QSPI

[Sigurd]

Hi,

Nandi said:

You are sure that you have nothing. issue?

 I don't see any issues with PCA10056 1.0.0(QIAAC0) and SDK 15.3

Nandi said:

The phenomenon of version 0.9.3 is able to enumerate the devices but cannot manipulate the files

0.9.3 will not work with SDK 15.3

Nandi said:

Even the LEDs are not lit.

 This is with QIAAC0? and a custom board?

Do you use the same QSPI flash as on the DK ?

Have you made any changes to the example ?

Have you tested other USB examples(e.g. usbd_hid_generic) in SDK 15.3 ? Do you have any issues with them ?