About gregstm

gregstm · 2023-01-08

I'm waiting for a STM32L4 LQFP48 micro that also includes a DFSDM to become available, it's not urgent and I've got plenty of other things to do. But I have noticed there are a lot of QFN48 parts available. Maybe ST could make an adapter as described...

gregstm · 2022-09-27

Just in case others have missed this feature (like I did). You can generate DMA at 32768Hz and even 65536Hz rates with the LSE if you use the "TIM15 input capture 1 is connected to LSE" option and set the timer to "input capture" mode and capture one...

gregstm · 2022-09-01

If I'm interested in the availability of STM32L4 chips that come in a LQFP64 package and also has a DFSDM interface, I use the "View all STM32L4 series products" and select the appropriate filters. I then get a list of 17 different micro variations. ...

gregstm · 2022-06-09

Yes, I have tried contacting the local ST sales reps here in Australia - no response.Sorry, I've resisted asking this question for a fair while because I know many have greater need. But I thought I would ask this question just in case there is a sec...

gregstm · 2022-03-18

I'm using some extremely efficient 603 size Leds that are very bright even at 70 microamps current. Can I use the LCD Driver (eg. of the STM32L476, 8x40 driver ) to drive a modest 8x12 or 8x16 Led display? (I have created a little dot matrix display ...

gregstm · 2024-04-14

Sounds like you have cut down the noise greatly. In general, if I had to do precise ADC measurements with a nucleo board, I would create a separate daughter board with its own very low noise linear voltage regulator and amplifier to buffer the signal...

gregstm · 2024-03-31

I haven't done much ESD/EMI stuff for a fair while, but when I did, I found the application notes and products at Murata very useful and interesting. Maybe have a browse through their stuff. I used a lot of their 603 sized ferrite beads in my design ...

gregstm · 2024-03-30

You can use a software simulator to step through your assembly code and watch the cycle counter - but it will probably not show all the delays with memory accesses - that's where the fun starts, organising the register loads/unloads so they don't slo...

gregstm · 2024-03-27

I've deliberately stayed with the STM32L4 series because it has a pin for the DFSDM1_CKOUT with the 48 pin packages (STM32L451, STM32L452, STM32L462).

gregstm · 2024-03-19

That adafruit board uses the SPH0645LM4H microphone. If you search this forum (or the internet generally) for "STM32L476 SPH0645LM4H" a number of previous discussions come up, maybe they will help - I think I have used this microphone with the STM3...

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User Activity

QFN48 to LQFP48 adapter thought

How did I miss this? 32KHz/64KHz DMA using LSE

Is there an easier way to search for micro availability (at distributors) based on peripheral requirements?

My kingdom for some samples! (STM32L4 + LQFP48 + DFSDM)

Can LCD Driver be used to drive ultra-low-power Led dot matrix display?

Re: Poor ADC quality on some Nucelo boards

Re: ESD protection for 2 USB port connectors

Re: How many clock cycles does each assembly instruction require in STM32?

Re: DFSDM in STM32F412CEUX

Re: Help setting up I2S microphone!