Does STM32H7 (STM32H743) support usb gadget ethernet?

[Dat Tran]

Anyone know  STM32H7 (STM32H743) support usb gadget ethernet?

I read somewhere STM32F7 does, but not sure about STM32H7

Many thanks.

[FBL · Accepted solution]

Hello @Community member​ 

In ux_host_class_cdc_ecm.h file under

STM32Cube\Repository\Packs\STMicroelectronics\X-CUBE-AZRTOS H7\2.1.0\Middlewares\ST\usbx\common\usbx_host_classes\inc

we can find ethernet is supported as an USB host

#define UX_HOST_CLASS_CDC_ECM_ETHERNET_IP           0x0800

#define UX_HOST_CLASS_CDC_ECM_ETHERNET_ARP           0x0806

#define UX_HOST_CLASS_CDC_ECM_ETHERNET_RARP          0x8035

#define UX_HOST_CLASS_CDC_ECM_ETHERNET_PACKET_SIZE       1536 

Also, in STM32Cube\Repository\STM32Cube_FW_H7_V1.10.0\Middlewares\ST\STM32_USB_Host_Library\Class\CDC\Inc Ethernet is among supported classes

[Dat Tran]

very nice, thank you so much.

[mohamed.ayed]

Hi Dat Tran,

ST USB Host lib does not support CDC-ECM / RNDIS Class so as mentioned by @F.Belaid​  you can use USBX (Azure RTOS Middleware) it support CDC-ECM Host Class.

https://learn.microsoft.com/en-us/azure/rtos/usbx/usbx-host-stack-6

Note actually we don't have a Host CDC ECM sample application.