AN14808, can not find some functions in the document

[felix1]

In the AN14808, connect i.MX RT1170 to Quectel EC200A-CN USB 4G modem, 

https://docs.nxp.com/bundle/AN14808/page/topics/details_for_implementation.html

can not find some functions in the document chapter 3.7, item g.

USB_HostCdcECM_ATInCallback();
USB_HostCdcECM_ATOutCallback();
dial_update_status();
dial_tx();
dial_rx();
lte_dial();
USB_HostCdcECM_EC200A_EP0_Callback();
update_ec200a_status();
ep0_communicate();
init_ec200a();                 

 Where can find these sample code functions?

[felix1]

I have found it in AN14808SW.zip, but in the document chapter 3.7, item b., it seems miss something in 

case USB_HostCdcEcmRunDial:

[EdwinHz]

Hi @felix1,

In this case, you would need to add the missing part of:

case USB_HostCdcEcmRunDial

In order for it to match what you see on section d) of "7. In usb_ethernetif_freertos.c:"

[felix1]

Hi @EdwinHz ,

I don't have RT1170 EVK and Quectel EC200A-CN, I use RT1020 EVK and EC200U-EU  C4-P01 EVB

https://developer.quectel.com/doc/quecpython/Dev_board_guide/en/ec200x-evb.html

to test this application note.

For now, can not trigger the EC200U-EU EVB USB device attached, just show the log

USB host init success.

 I check the host CONTROLLER_ID, and it seems correct for RT1020.

#if ((defined USB_HOST_CONFIG_EHCI) && (USB_HOST_CONFIG_EHCI))
#ifndef CONTROLLER_ID
#define CONTROLLER_ID kUSB_ControllerEhci0
#endif
#endif /* USB_HOST_CONFIG_EHCI */

Is there any USB difference I need to modify?