A problem with USB mas storage.

RE: A problem with USB mas storage.

Håkon Alseth — Mon, 03 Sep 2018 08:06:08 GMT

Hi,

I tested this on two boards, one with engineering revision C and one with the production release of the silicon. I am using the usbd_msc example as-is.

Are you seeing the same issue with a unmodified version of usbd_msc example? Given that the failure description disappears when you reset the board, it indicates that the actual data is not corrupted, but the firmware is somehow.

Is there specific steps that you're following to recreate the issue?

Best regards,

Håkon

RE: A problem with USB mas storage.

Sergii — Fri, 31 Aug 2018 12:38:54 GMT

I tasted it on two dev boards

RE: A problem with USB mas storage.

Sergii — Fri, 31 Aug 2018 12:38:31 GMT

Hello,

Yes, correct. Which the board do you use? Do you use the same revision of the mcu?

Could you please share the test code ?

RE: A problem with USB mas storage.

Håkon Alseth — Fri, 31 Aug 2018 12:21:09 GMT

Do I understand correctly that if you reset the device, the files are then restored (ie: not broken) ?

I have tried to replicate this behavior on my boards, but I have not been able to do this. Is there a specific procedure to reproduce the issue?

Best regards,

Håkon

RE: A problem with USB mas storage.

Sergii — Tue, 28 Aug 2018 11:34:52 GMT

When I make "Safely remove" - it still brocks files.

When I make "Safely remove" and press the button on the board BOOT/RESET at the same time and off the device - the files are not broken (looks all is good in this case)

RE: A problem with USB mas storage.

Håkon Alseth — Tue, 28 Aug 2018 10:59:23 GMT

What is the expected content vs. the actual content of the corrupted file? Do you always "Safely remove" the drive?

RE: A problem with USB mas storage.

Sergii — Tue, 28 Aug 2018 08:00:08 GMT

Hello,

Have tried to change the number - didn't help. Maybe some other ideas?

RE: A problem with USB mas storage.

Håkon Alseth — Wed, 15 Aug 2018 07:15:15 GMT

Hi Sergii,

When using rev C or the production release of nRF52840, it is important that you apply the patch mentioned in my former link.

Could you try this and report back?

Kind regards,

Håkon

RE: A problem with USB mas storage.

Sergii — Tue, 14 Aug 2018 19:58:13 GMT

Hello,

I use C revision.

Regards,

Sergii

RE: A problem with USB mas storage.

Håkon Alseth — Tue, 14 Aug 2018 06:57:01 GMT

Hello,

Which revision of the nRF52840 are you using?

If you are using the latest revision of the nRF52840, there are some erratas that has not been properly applied in our SDK; please see this thread.

Please also note that former engineering revision A has now been deprecated and will not work properly with SDK 15.

Kind regards,

Håkon

RE: A problem with USB mas storage.

Sergii — Fri, 10 Aug 2018 12:13:12 GMT

Hi Bjørn,

Have tried - didn't help (((.
I add this code in the function:

static ret_code_t block_dev_qspi_uninit(nrf_block_dev_t const * p_blk_dev)
{
ASSERT(p_blk_dev);
nrf_block_dev_qspi_t const * p_qspi_dev =
CONTAINER_OF(p_blk_dev, nrf_block_dev_qspi_t, block_dev);
nrf_block_dev_qspi_work_t * p_work = p_qspi_dev->p_work;

//*******************************************Added code*************************************************//
if ((p_work-> state != NRF_BLOCK_DEV_QSPI_STATE_IDLE))
{
wait_for_idle (p_qspi_dev);
}
//*******************************************Added code*************************************************//

if (m_active_qspi_dev != p_qspi_dev)
{
/* QSPI instance is BUSY*/
return NRF_ERROR_BUSY;
}

if (p_work->state != NRF_BLOCK_DEV_QSPI_STATE_IDLE)
{
/* Previous asynchronous operation in progress*/
return NRF_ERROR_BUSY;
}

if (p_work->ev_handler)
{
/*Asynchronous operation*/
const nrf_block_dev_event_t ev = {
NRF_BLOCK_DEV_EVT_UNINIT,
NRF_BLOCK_DEV_RESULT_SUCCESS,
NULL,
p_work->p_context
};

p_work->ev_handler(p_blk_dev, &ev);
}

p_work->state = NRF_BLOCK_DEV_QSPI_STATE_DISABLED;
nrf_drv_qspi_uninit();

memset(p_work, 0, sizeof(nrf_block_dev_qspi_work_t));
m_active_qspi_dev = NULL;
return NRF_SUCCESS;
}

Please let me know, maybe some thing else.

RE: A problem with USB mas storage.

bjorn-spockeli — Tue, 31 Jul 2018 13:40:22 GMT

Hi Sergii,

I think you should try to add the code suggested in this answer and see if that helps.

Best regards

Bjørn