About Remco Kleine

Remco Kleine · 2024-02-19

Hello, I am using an STM32L462 microcontroller with a crystal from Wurth: 830 016 178This crystal has a load capacitance of 6 pFI calculated the two load capacitors CL1 and CL2 to be 4.3 pFNow, everything is working OK, and the RTC is running fine......

Remco Kleine · 2018-03-27

Posted on March 27, 2018 at 09:03Hello,I implemented the software for the HTS221 in my project and all is working. But what I find strange is this, some calibration coefficients are negative!H0_T0_OUT is -2H1_T0_OUT = -11728Although they are negativ...

Remco Kleine · 2024-02-21

I have a related problem.I can fix it in hardware though..The problem is that the USB_DM is floating in STOP1MODE, even after I executed USBD_LL_Suspend().The whole board with >10 chips on it is consuming about 27 uA, when the microcontroller is in S...

Remco Kleine · 2024-02-19

Yes, if I measure indirectely on the tamper output, it show 512 Hz.And also I can store the board, with the RTC running on a coin cell, and the time/date is correct after a week or so.So, it is working.I was just wondering if the oscillator was stabl...

Remco Kleine · 2024-02-19

Aha, I read the applicaion note, and I calculated the two capacitors form there.But I didn't read the part about the special probe. I think it is normal behaviour what I see. The probe has just too much capacity.Thanks for your tip!

Remco Kleine · 2024-02-13

Hello,I am facing similar issues .Is the TVS USB protection Device a USBLC6-2SC6?That is the one I use, and I also have the VDD floating, and when I heat it a little, the current goes up with several hundred uA's.When I connect the VDD of the TVS pr...

Remco Kleine · 2018-04-05

Posted on April 05, 2018 at 09:49OK! Thanks for your reply!So, it looks like the specs of the datasheet (+- 3.5 %) are optimistic?I also did not get a response from ST.Perhaps, for our application it is enough, but I still find it very strange that ...

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STM32L462 Load Capacitors

HTS221 Cal. Coeficients

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