How to stop/disable/uninit CLI instance and USB CDC/ACM instance gracefully?

RE: How to stop/disable/uninit CLI instance and USB CDC/ACM instance gracefully?

jing — Wed, 15 Apr 2020 14:50:48 GMT

how about

nrf_cli_stop(&m_cli_cdc_acm);

app_usbd_stop();

while (nrfx_usbd_is_enabled()) ;

jing

RE: How to stop/disable/uninit CLI instance and USB CDC/ACM instance gracefully?

OceanS — Tue, 28 Jan 2020 10:52:10 GMT

Hi Amanda,

(1) Re how to close USB CDC/ACM instance gracefully, Actually seemingly the code below isn't enough if you have chance to run code in practical example

app_usbd_stop(); // this would trigger an Assert,

app_usbd_uninit();
app_usbd_disable();

Anyway, just comment out the Assert and let it go.

(2) Re how to close CLI gracefully, also the code below isn't enough if you build a quit command for CLI as,

nrf_cli_stop(&m_cli_cdc_acm);

nrf_cli_uninit(&m_cli_cdc_acm);

Via a Putty or Picocom to prove, you would find the instance isn't stopped and disconnected.

Could you please help me clarify how to close CLI gracefully?

Thanks.

Regards

J.S.

RE: How to stop/disable/uninit CLI instance and USB CDC/ACM instance gracefully?

Amanda Hsieh — Thu, 23 Jan 2020 10:03:45 GMT

Hi,

I think you should call app_usbd_disable(); before app_usbd_uninit();

-Amanda H.

RE: How to stop/disable/uninit CLI instance and USB CDC/ACM instance gracefully?

OceanS — Wed, 22 Jan 2020 20:26:10 GMT

Hi, Thanks for your response.

You may have missed some of my details. I am ok to init USBD.

nrfx_usbd.c:1708 is inside nrfx_usbd_uninit().

void nrfx_usbd_uninit(void)
{
NRFX_ASSERT(m_drv_state == NRFX_DRV_STATE_INITIALIZED);

m_event_handler = NULL;
m_drv_state = NRFX_DRV_STATE_UNINITIALIZED;
return;
}

if possible, could you please give me any suggestion in how to

(1) close CLI instance gracefully (2) close USB CDC/ACM instance gracefully

Thanks.

Regards

J.S.

RE: How to stop/disable/uninit CLI instance and USB CDC/ACM instance gracefully?

Amanda Hsieh — Wed, 22 Jan 2020 13:14:15 GMT

Hi,

[quote user=""]app: ERROR 3735928559 [Unknown error code] at C:\nRFSrcRoot\nRF5_SDK_15.3.0_59ac345\modules\nrfx\drivers\src\nrfx_usbd.c:1708 PC at: 0x0003D4E7[/quote]

nrfx_usbd.c:1708 is inside nrfx_usbd_init().

Please set up the Debugging environment as shown in this Youtube tutorial.

So it looks like you have an issue enabling USBD. Please refer to the sdk_config.h in the USB Device Example.

-Amanda H.