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 ??