S32K中的主题 Re: Update SW via TFTP client

Update SW via TFTP client

Kazarian — Mon, 18 Jul 2022 07:58:30 GMT

Hello ,

i want to update the software on my board via TFTP,this will be usefull if the board is enclosed in a plastic or metalic cover, the idea is

PC will run a TFTP server containing all SW files
S32k will run a TFTP client that will ask (by file name) the server for the flash file
S32k will receive the flash file and start the SW update (erase all flash memory and write).

Is there a code example for that ? I have found this example client on github, but I get always a fail in “failed to open file”.

im using the Tftpd64 as TFTP server.

Best regards.

Re: Update SW via TFTP client

Kazarian — Wed, 20 Jul 2022 11:55:34 GMT

Hello,

i have integrated the code to the project, the S32K148 can start the TFTP client, but i get an issue in "tftp_open_file".

Firewall UPD port 69 is open for both ongoing and outgoing packet.

TFTP server is runing and pointing to the location where the file is.

attached the source code used.

Thank a lot for the help !

Re: Update SW via TFTP client

lukaszadrapa — Wed, 20 Jul 2022 12:03:53 GMT

Hi Badre,

I'm afraid the answer is no, we do not have such example. We have only:

Application note “S32K1xx Bootloader” using UART:

https://www.nxp.com/docs/en/application-note/AN12218.pdf

https://www.nxp.com/docs/en/application-note-software/AN12218SW.zip

Application note “S32K1xx Firmware updates” discussing A/B swap and using CAN:

https://www.nxp.com/docs/en/application-note/AN12323.pdf

https://www.nxp.com/docs/en/application-note-software/AN12323SW.zip

And then we have lwip integrated to SDK in S32 Design Studio including SW example:

c:\NXP\S32DS.3.4\S32DS\software\S32SDK_S32K1XX_RTM_4.0.2\examples\S32K148\demo_apps\lwip\

Regards,

Lukas

Re: Update SW via TFTP client

Kazarian — Wed, 20 Jul 2022 12:15:43 GMT

Thank you Lukas,

im not aiming for Bootloader or Firmware update.

the goal is to upgrade the application software (.elf file), once a newer version, bug fix... is released i should be able to transfere and burn the file to the MCU.

Best regards.

Re: Update SW via TFTP client

lukaszadrapa — Thu, 21 Jul 2022 06:41:42 GMT

"the goal is to upgrade the application software (.elf file), once a newer version, bug fix... is released i should be able to transfere and burn the file to the MCU."

Well, this sounds like definition of the bootloader. My recommendation is to read mentioned AN12323 which should be a nice starting point.

Regards,

Lukas

Re: Update SW via TFTP client

lukaszadrapa — Thu, 21 Jul 2022 06:43:57 GMT

lwip is an open source which is integrated to SDK. We can provide only very limited support here.

https://lwip.fandom.com/wiki/Further_lwIP_support

Regards,

Lukas