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SirZusa

Programming MSP430F5171 / MSP4305xxx with Launchpad

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Hey, after getting my "wrecked" pcb's without soldermask i soldered a MSP430F5171 to the breakout and connected RST, TEST, VCC and GND to the appropriate pins of the device (Dvio, Dvcc, 2x Dvss, RST and TEST) for SBW-Programming. Datasheet says it supports SBW.

 

But i cant program it with IAR and/or CCS5.

 

Already checked the traces (no shortcuts, all have contact to the pins on the other side).

 

Checked the voltages - ~3.5V between RST+TEST and Dvss+Dvcc.

 

Also tried to directly connect it to the Emulator-part of the Launchpad, then tried to connect only GND+TEST+RST.

 

Nothing seems to work - Did i forget something or may the chip be bricked?

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I think i burned the chip while soldering it :oops:

 

I tried it again with a MSP430F5172 and it worked fine with CCS5. With IAR i cannot debug - don't know why - maybe the limitations of the Kickstart-Edition ;)

 

I have some other chips here and will try it with them and report if it works ;)

 

edit: another test - after reboot and unplugging the usb-cable it also works with IAR ;)

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There's a limit on how much current the Launchpad can supply, since it's powering so much (TUSB3410, its crystal, the FET emulator, the LEDs, etc...). Have you tried self-powering the MSP430F5 chip? Some models have an integrated 3.3V LDO so you can hook it up to a 5V source and direct the output to the chip DVCC.

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Oh and be careful if you're hooking up the LDO; the MSP430 has virtually no 5V tolerant ports (except I think the PUx ones), so you'll literally burn the chip if you accidentally do so.

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After soldering another chip on my breakout programming the devices with the launchpad was no problem anymore - so i think i had a defect chip or i just burned it. However now it works fine with the TSSOP and LQFP-Chips i tested ;)

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