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MSP430FR5849: MSP-FET430UIF Spy-Bi-Wire connection

Expert 1935 points
Part Number: MSP430FR5849
Other Parts Discussed in Thread: MSP-FET

Hello,

the ti wiki and the FR5849 datasheet both show the spy-bi-wire connection to be like this:

1: RST, 2: VCC, 7: TST, 9 GND

http://processors.wiki.ti.com/index.php/JTAG_(MSP430)

http://www.ti.com/product/MSP430FR5849/datasheet/applications-implementation-and-layout

Yet I get no device found.

If I use the following connection including R2:

http://processors.wiki.ti.com/index.php/JTAG_(MSP430)#Spy_Bi-Wire_.282_Wire_JTAG.29_for_MSP430F2xx.2C_MSP430G2xx.2C_and_MSP430F4xx

It works.

Can someone please explain why the pinout shown in the datasheet does not work?

I use a old, grey msp-fet430uif v1.4a, does that matter?

Best regards,

Lo2

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