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Original question:

TM4C1294NCPDT: TFTP server implementation

TM4C1294NCPDT: TFTP Question

Doug Baker
Genius 3400 points
Part Number: TM4C1294NCPDT

I am using the following:

ccs 6.1.2 
TIRTOS 2.16.0.08,
compiler 5.2.7 
XDC 3.31.1333
TM4C1294NCPDT
ndk_2_25_00_09

I would like to use TFTP to receive about 5M Bytes of data I need to write to a serial device so I need to receive a block of data write it to a serial device and get more data from TFTP till I have moved all 5 M Bytes. 

Are there any examples I could leverage to see how to implement this?

I have found the following source that has some functions that look like they would help.:   

C:\ccs6p1p2\tirtos_tivac_2_16_00_08\products\ndk_2_25_00_09\packages\ti\ndk\nettools\tftp

One example that could be leveraged possibly is the boot code in the Tiva since the boot code supports TFTP / BootP  to do firmware update over Ethernet. 

Where can I find the  source code  for the Tiva boot code and are there other examples of implementing a TFTP client using the functions in the code in the path above?

Thanks,

Doug

  • +1
    TI__Guru**** 184346 points

    Hi Doug,

    Doug Baker said:

    C:\ccs6p1p2\tirtos_tivac_2_16_00_08\products\ndk_2_25_00_09\packages\ti\ndk\nettools\tftp

    One example that could be leveraged possibly is the boot code in the Tiva since the boot code supports TFTP / BootP  to do firmware update over Ethernet. 

    Where can I find the  source code  for the Tiva boot code and are there other examples of implementing a TFTP client using the functions in the code in the path above?

    Here are other sources that may be helpful to you for TFTP transfers. 

    - tftp.c contains various API for supporting TFTP.  You can find the file in C:\ti\TivaWare_C_Series-2.2.0.295\utils\tftp.c.

    -  The TivaWare bootloader example has TFTP to receive packets from the TFTP server. Although it is a bare-metal example using uIP stack, I hope you can get some ideas on how TFTP works at the client side. Search for TFTP in  C:\ti\TivaWare_C_Series-2.2.0.295\boot_loader\bl_emac.c file. 

    - There is also a PC based program that handles TFTP in C:\ti\TivaWare_C_Series-2.2.0.295\tools\eflash\bootp_server.c. This program is used to FTP data to MCU for the bootloader examples (boot_emac_flash.c).