Regarding openSDA of TRK KEA 128 development board

[jashanm]

Hi all,
                  am working on openSDA of  TRK KEA128 development board. I wanted to make my own openSDA  board  so  that I  could  flash  my  MCU  which  is used  in  my  project, I  referred  the schematics  of TRK KEA 128  and  designed a board with same  components being used as of TRK KEA 128. I am finding few difficulties while  flashing.

1.         First of  all  when I  connect  it  via USB  to my  computer  it  doesn’t detect  ( using Code warrior to flash and debug).

2.         Flashing happens once I do with development board (by connecting UART_TX, UART_RX, SWD_DIO,  SWD_CLK   and  RESET )  but  not from  my  board (                           by connecting  UART_TX, UART_RX , SWD_DIO, SWD_CLK and RESET).
3.         Observation done from my board is that LED doesn't glowing once I connect USB.

Does openSDA controller IC needs to be flashed ??

[jeremyzhou]

Hi Jashan,

Yes, After be programmed with the firmware, the OpenSDA hardware can turn into the debug tool, and you can learn the more detail information through the link as below.

OpenSDAv2
Have a great day,
Ping

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[jashanm]

Hi jermyzhou,

                     Thanks for the reply, i am getting the firmware for K20 but not for M20. is there a link for it ?? and also once i connect the USB to my openSDA un-flashed board its not detecting, so i couldnt see any BOOTLOADER drive in my system ? is there anything which i have to do before pressing RESET and plugging the USB ??

[jeremyzhou]

Hi Jashan,

The M20AGV is the product number of the following chips.

Header 1
MK20DX128VFM5 MK20DX128VFT5 MK20DX128VLF5 MK20DX128VMP5

For the KEA 128, now the OpenSDAv2 hasn't supported the device now, however the P&E Micro has the copy right of the OpenSDA and it's not the open source.

So I'm afraid it's hard to copy the OpenSDA interface from the TRK-KEA128 board.
Have a great day,
Ping

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