STM32H7 TFTP Server

[jowakar122]

I am trying to implement TFTP file transfer on my STM32 module (Nucleo-H723ZG). I have taken reference from:
https://github.com/STMicroelectronics/STM32CubeF4/tree/master/Projects/STM324xG_EVAL/Applications/LwIP/LwIP_IAP
https://github.com/JoeMerten/Stm32-Tools-Evaluation/tree/master/STM32Cube_FW_F4_V1.9.0/Projects/STM324xG_EVAL/Applications/LwIP/LwIP_TFTP_Server

For file transfer I am using tftpd64 software. I used the software for PC-PC file transfer which were on the same local network and it was successful. But when I am trying to send file from PC-STM32 module I am only receiving write request from the client (PC). After that  I am suppose the get a block 0 acknowledgement from the server (STM32 module) which I am not receiving. 

I tried debugging the code but in the code the acknowledgement is being sent successfully. For more information:
- my ethernet is up

- I have successfully ping the IP address that I have assigned or configured for the module.

- Moreover, I am using UDP so I am able to send messages using Hercules software.

Until the block 0 acknowledgement is received by the client (PC), it will not send the data packets.

[jowakar122]

I am using Nucleo-H723ZG which is not listed under the module which has LwIP_TFTP_Server.  The module I am using only has four example codes related to LwIP and none includes TFTP.

[matt-crc]

lol.....

you said:

i gave you instructions how to download the project, you clearly didn't read it properly....

anyway... this is becoming a waste of my time.... lol

[jowakar122]

I used that for reference regarding ethernet and mpu configuration. In that example code SD card is used to store the file, whereas I am directly writing the file in the user flash memory which I will be receiving from the Ethernet.

[jowakar122]

My concern lies here. While debugging we can see that the local port, destination port, addr is correct and after executing the udp_sendto line I got err = 0 indicating that the acknowledgement so successfully sent. But it can be seen in wireshark nor the client proceeds to send the data packets.

[Pavel A.]

Have you checked for duplicate IP address? Someone else answers the ping?

[jowakar122]

I have cross checked about the duplicate IP address. When the ethernet is down ping on that same ip address has failed and it is not listed in arp. So there is not duplicate IP address.

[jowakar122]

Does anyone have any idea about this? It would be great.