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AM1705BPTPA3 ETM and ETB

Chris Schlink
Prodigy 10 points
Other Parts Discussed in Thread: AM1705

On the AM1705BPTPA3 there is an 4KB ETB which is the only interface to the ETM.  Can this device stream data from the ETB to capture larger than 4KB trace files?

  • 0
    TI__Intellectual 2620 points

    Sorry for the delay as we need to check with the device team. Although the tool is capable of handling the streaming, because of the design the trace module for AM1705, even in circular buffer setting, the CPU still need to be halted to dump the 4KB buffer to the host via JTAG. The trace buffer on the PC host can be of any size. If it is larger than the AM1705 4KB buffer, the user needs to manager where the trace get dumped to within the range of the host side buffer. Note that trace info is compressed so 4KB actually holds more data than an uncompressed capture.