MK66 Cannot start USB CDC with SerialManager

Axent — Sun, 12 Jun 2022 22:15:24 GMT

Hello everyone. I relocated from STM32 to NXP MCUs. Currently I use MK66 series and try to launch USB CDC class devise using SerialManager. I use MCUexpresso IDE.
I set all needed clocks (and for usb):
CLOCK_EnableUsbfs0Clock(kCLOCK_UsbSrcIrc48M, SIM_USB_CLK_48000000HZ);

I am also pinned necessary pins for DP and DM signals in Pin Tool.
In my function I use code:

static uint8_t s_serialHandleBuffer[SERIAL_MANAGER_HANDLE_SIZE]; static serial_handle_t s_serialHandle = &s_serialHandleBuffer[0]; static uint8_t s_ringBuffer[SERIAL_MANAGER_RING_BUFFER_SIZE]; serial_manager_config_t config; serial_port_usb_cdc_config_t usbCdcConfig; usbCdcConfig.controllerIndex = kSerialManager_UsbControllerKhci0; config.type = kSerialPort_UsbCdc; config.ringBuffer = &s_ringBuffer[0]; config.ringBufferSize = SERIAL_MANAGER_RING_BUFFER_SIZE; config.portConfig = &usbCdcConfig; SerialManager_Init(s_serialHandle, &config);

SerialManager_Init() returns with OK.
When I plug the cable to PC< Windows shows the message (USB device not recognized) Error 43: Descriptor request fail.
I found the same issue in forum :
https://community.nxp.com/t5/K32-L-Series-Microcontrollers/quot-USB-CDC-quot-does-not-work-on-K32L2B3/td-p/1160599

But no any replies to it. I figured out that MCU doesn't process callbacks at PC requests (events like Reset, getDescriptors and other. Briefly enumeration I mean)

Can you help me? Maybe I forgot something detail in my implementation??
Thanks.

Re: MK66 Cannot start USB CDC with SerialManager

Axent — Mon, 13 Jun 2022 00:36:29 GMT

I figured out that I added FreeRTOS support in my project.
But if I switch to BareMetal, my code statrs work fine.
How can I implement this with FreeRTOS? Thanks

Re: MK66 Cannot start USB CDC with SerialManager

jingpan — Mon, 20 Jun 2022 08:14:42 GMT

Hi @Axent ,

I made a demo. It can PRINTF in APPtask. You can take a look.

Regards,

Jing

Kinetis Microcontrollers中的主题 MK66 Cannot start USB CDC with SerialManager

MK66 Cannot start USB CDC with SerialManager

Re: MK66 Cannot start USB CDC with SerialManager

Re: MK66 Cannot start USB CDC with SerialManager