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JTAG mailbox support

Other Parts Discussed in Thread: MSP430G2101, MSP430F5510

Does the MSP430G2101 support the Spy-Bi-Wire JTAG mailbox?

Thanks in advance.

  • No, it does not support the JMB system, because MSP430G2101 has no SYS configuration registers.

    Best regards,

  • Hello,

    At this subject.

    I am using MSP430f5510 and i would like to use the JTAG Mailbox (JMB) System for Run-time data exchange.

    I have looked everywhere for examples of how to use this feature, but with no luck.

    Is this feature useable in MSP430f5510? If so I would be happy for some guidance of how to use it.

    Thank you very much,


  • Yes, this can be done with MSP430F5510. Examples can be found in...

    slau320 MSP430 Programming Via the JTAG Interface

    slac460 MSP430.DLLv3

    It is very simple and right way of JTAG data exchange with target device (TEST / RESET pins), but not the faster one. For max speed can be used quick read/write (IR_DATA_QUICK) because it request only one shifting per word, while mailbox system request 2 shifting per word. But of course advantage of mailbox is that target device can run free, not under JTAG control.