I've been powering the MSP430FR4133 LaunchPad from USB for a while and life was beautiful Then, I switched to using the BoosterPack to power all the components and here's where the trouble starts. LP started working sporadically, I could never guarantee that code will start executing. Then I started debugging the booster back since I assumed it's something I did wrong. I even decided to use a more powerful 3.3 voltage regulator (TI's LM1117-3.3) and had to etch another PCB to fit the different footprint

However, this didn't help. So I continued debugging and at some point I decided to remove all the jumpers from the LP (not only the recommended ones - GND, 5V and 3.3V) - And that was it! It seems that when you have the programming jumpers connected LP will start at random. This is what happens with Energia, at least. CCS might behave better since it's using a different driver for debugger.

Anyway, this was good enough for me but at some point I got tired from removing 7 jumpers and putting them back on every time I flash and test an updated Energia sketch.

Today I decided to use a bit of hot glue and a piece of board to make single block of jumpers that are easy to remove and put back onto the LP.

Cheers!

Top Comments

mcb1 over 8 years ago

Excellent trick.

Well done.
Mark
- Cancel
- Vote Up +1 Vote Down
- Sign in to reply
- More
- Cancel
shabaz over 8 years ago

That's a neat trick!
I'll have to remember that : )

It is irritating when some boards have so many jumpers (Raspberry Pi GertX boards are guilty of that) that it becomes hard to remember what does what!
- Cancel
- Vote Up +1 Vote Down
- Sign in to reply
- More
- Cancel