UPDATE: What do you think of this Debugger, the ULINKplus -- Power-Aware Debugging

I updated this page to include a link to the ULINKplus webinar. This will be a demo with a live Q&A. It will be worth signing up. This webinar is being hosted by arm.

https://pages.arm.com/Webinar-ULINKPLus-ext.html?mkt_tok=eyJpIjoiT1dRellUQTFNek0yT1RBMSIsInQiOiJWTGl0ZEowK0NYdFNuYTNxWnQ4RW9JdnkyK3ptTWp2cE5UMk85T3h0RzNxT1J2UUpiOGU4c2pUZWJtczUxaE95aHhyUExDSXp3WEVCQkQ1U3RaNEc2QT09In0%253D

What would help is if KeilARM were to publish a proper data sheet. I've spent a while just now on their website and I can't find the current measurement sampling rates or ADC resolution properly specified anywhere.

There is a hint deep in the user instructions that it might be possible to set the sampling rate to 160kHz. It needs 250mV voltage drop for full scale current and offers current ranges in 2.5/5/10 sequence from 2.5mA to 250mA

The problem with webinars is that they are a very expensive use of time - why would I devote an hour when a decent data sheet can be scanned for key features in a couple of minutes ?

I couldn't find any prices for the UlinkPlus

MK

A webinar on this product is in the works. I suspect it will happen sometime in November. I encourage you to attend.

Randall Scasny

It does look interesting!

I just recently bought a TI ARM debugger, the XDS110, and although it was a lot cheaper ($100) sometimes I feel it is a false economy, because in comparison the ULINK is probably supported with any vendor ARM chip.

The TI one is supposed to measure current too, but only with a very limited selection of ARM chips. It doesn't use a sense resistor, but apparently measures the DC-DC converter duty cycle.

The reason I purchased it was because it comes with a load of adapters to suit various boards. However, as usual, the connector I want isn't there, so I'll have to spend an hour assembling it : (

Probably a bit advanced for what I typically do but I can see it being a great aid for troubleshooting pesky problems. I suspect I'll eventually get to the point of inline debugging but mostly I'm in the serial print and flash LED camp.

If the question is, "would you like to see someone road test this" then I'd say yes.

You have a link for Jensen?

The price I found is $690 USA.

The option to support incompletely the power side - it is true, there is an incredible wide range of options - should be excluded IMHO just because they declare it will. If it is not, this is the wort part of the product that is under the announced expectations. About price instead, I agree, it is what makes the difference. Especially for the target it is oriente to.

Enrico

tekmeister wrote:

 

With regard to current measuring, it looks like the sense resistor is external (ie. you provide it), so it might actually be able to measure quite accurately

It's more a case of the dynamic range required. If you need to be able to measure very low currents in the range of uA when the MCU is in a low power mode but then also be able to measure hundreds of mA when it wakes up and is busy doing things you may not be able to select a resistor which will give reasonable accuracy at both ends of that range.

Best Regards,

Rachael

Looks like a good debugging tool.

I'd like to know what it's like to control those I/Os via the scripting language, because that would enable it to run automated testing during development and perhaps even during small batch production.

Razvan