We have been using C6748 in our custom board,
we have a SPI 0 Flash and UART 0 Boot modes
for Flashing the boards we have tried out 2 methods
1. AIS Gen to Generate binary file and SPI writer using JTAG (After making necessary modification for our custom board)
2. Serial flash via UART0 using sfh_OMAP-L138.exe ( the same was re made to meet our custom board requirements using Cygwin)
Both work reliably
Recently we got Secure C 6748 ( TMS320C6748EZWTA3E) assembled in the same custom board
- JTAG gives an error C674X_0: Error connecting to the target: Connect to PRSC failed
- I generated .bin file of my application and Tried to unlock JTAG using ini file (Downloaded SECDEVTOOL-OMAPL138C6748: Basic Secure Boot Development Tools for OMAP-L138 / C6748 )
bootExitType = NONSECURE
TAPSCFG = 0x0000FFFF
1. How to flash this .bin file to the Secure C6748 and get JTAG unlocked so that i can debug the device as well as flash it using my SPI Writer?
2. Tried to use the serial flash tool " sfh_OMAP-L138.exe" in UART0 boot mode as i was doing with my non secure device but not receiving " BOOTME"......
3. When i change to UART0 boot mode and connect to Hyperterminal the secure device does not return "Boot me" where as my non secure device returns " BOOTME" Why is that?
4. Tried to use GenericSecureUartHost but not able to receive boot me may be because it made for UART2 boot mode and i have UART0 boot mode, if this is correct please guide me through the rebuilding steps to get a GenericSecureUartHost for my custom board.
Please help me with booting of TMS320C6748EZWTA3E.
Thanks,
NN