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TMS320F28027: Flash controller without changing boot pins

Rajan Joshi
Expert 1020 points
Part Number: TMS320F28027


Hey Gurus, 

I have a problem regarding the flash programmer. 

Once I have flashed the program using the JTAG debug connection, (S1 ON-ON-ON), I can change the pins to non-JTAG boot to flash (S1 ON-ON-OFF) to start the program from power on. 

What I was wondering is that without changing the switch position is it possible for me to change the flash code ? Using external utilities such as c2prog? If so, how do i go about it. 

Regards,

Rajan Joshi

  • 0
    TI__Mastermind 32995 points
    Yes, but you would need a way to signal the flash programming update or device firmware update (DFU) mechanism. You would need to include DFU code in your flash algorithm and then trigger it using some external signal.

    You can see the serial flash programmer and sci flash kernel for help.

    www.ti.com/lit/sprabv4

    Regards,
    sal