Hi TI experts:
We developed a new board with C6747 chip as its core. But we can not have successful JTAG connection with our XDS560PLUS emulator under CCS3.3.
The error message is as follows:
Error connecting to the target:
Error 0x80000240/-275
Fatal Error during: Initialization, OCS,
This error was generated by TI's USCIF driver.
SC_ERR_SCAN_POLL_BUSY <-275>
The attempt to poll a target device exceeded its timeout limit.
The utility or debugger has requested that a target device be
repeatedly accessed for a specific data or status value.
This has failed because the built-in limit for the maximum number
of attempts when polling the JTAG scan-path has been exceeded.
Board Name: C6747 XDS560 Emulator
Cpu Name: TMS320C674X_0
With the same softwoare and emulator, we can connect to other C6747 boards without any problems, whose JTAG circuits are all the same.
Error 0x80000240/-275
Fatal Error during: Initialization, OCS,
This error was generated by TI's USCIF driver.
SC_ERR_SCAN_POLL_BUSY <-275>
The attempt to poll a target device exceeded its timeout limit.
The utility or debugger has requested that a target device be
repeatedly accessed for a specific data or status value.
This has failed because the built-in limit for the maximum number
of attempts when polling the JTAG scan-path has been exceeded.
Board Name: C6747 XDS560 Emulator
Cpu Name: TMS320C674X_0
With the same softwoare and emulator, we can connect to other C6747 boards without any problems, whose JTAG circuits are all the same.
Could you please help me to find out where the problem is and how to fix it?
Thanks!
Anfy
