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RPC · 2024-10-24

Hello everyone,Today I'm writing to you because I'm trying to implement a PPPoS connection over the USB CDC Host of a STM32H745. The modem I'm trying to connect to is a SIM7500 of SimCom.I managed to establish the connection between the modem and the...

RPC · 2024-08-29

Hi, I am trying to use a Nucleo-H745ZIQ to implement the USB CDC HOST functionality over the USB OTG FS port. I succeeded to do it and make it work if the device connected to my board is another STM32 board which is configured as an usb device, and t...

RPC · 2024-11-14

Hello again, I managed to solve the issue mentioned before:Seems like the USB_CDC_Class if its FS(Full Speed) the maximum size that can receive at once is 64 bytes, so bigger frames than that were coming fragmented.The solution was to detect the begi...

RPC · 2024-11-12

Does anyobody knows why I can process the tcp requests but not the http requests and half of the messages are dropped due to bad FCS?Also, I can send pings of 16 bytes or less, but pings bigger than that are again being dropped.Did anybody had this p...

RPC · 2024-11-07

UPDATEI managed to make it work.First I had to define LWIP_HOOK_IP4_ROUTE function because I'm using 2 interfaces and the pppos is not the default one.And second I had to add 2 defines for checksum check tcp and for checksum generate tcp.#define CHEC...

RPC · 2024-09-17

I ended up finding the solution. Seems like the device I tried to connect had 3 endpoints per interface, but because of the define #define USBH_MAX_NUM_ENDPOINTS 2U always when reading the cfg info it read 2endpoints, seems like it is conditioned by ...

RPC · 2024-09-05

I mean 2 interfaces. The CDC CLASS with bInterfaceClass=0x02U and the Data interface class:0x0AU.As shown on the above trace, the device has 4 interfaces, and I'm selecting only 2 of them. I can show you another trace to clarify:USBH_ParseCfgDesc(): ...

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PPPos Lwip Issue

STM32 USB HOST cannot get line configuration of device

Re: PPPos Lwip Issue

Re: PPPos Lwip Issue

Re: PPPos Lwip Issue

Re: STM32 USB HOST cannot get line configuration of device

Re: STM32 USB HOST cannot get line configuration of device