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MSP430F5659: How to connect 14-pin JTAG header to device for JTAG (not SBW) programming?

user4725373
Expert 1645 points
Part Number: MSP430F5659

Hi,

We currently use Spy-By-Wire programming for our MSP430. As such, we provide Vcc, RST_SBWTDIO (with 49.9k pull-up resistor and 1.5n capacitor to GND), TEST_SBWTCK (with 100k pull-down), and GND to the 14-pin JTAG connector. This results in a relatively slow programming time when debugging. I was wondering if it's possible to use the 4 additional JTAG pins (TDO, TCLK, TMS, TCK) to decrease the programming time.

If so, are there additional provisions (e.g. resistors/capacitors) to do than to connect the pins to the JTAG header? Should I leave some pins unconnected? I haven't found an app note about that.

Thank you,

Fred

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