About John Adriaan

John Adriaan · 2021-02-27

I have soldered up my first STM32WLE5CCU6 project board, and it buzzed out nicely before I gave it power. Now VDD is permanently shorted to ground...I'm happy to try again, but: what is the minimum number of pins/components that I need to connect jus...

John Adriaan · 2020-07-24

I think I'm misunderstanding something with the generic SPI transmit procedure. I'm working with the STM32L432, but I think that's the standard SPI device for most MCUs. My scenario is with the MCU as Controller rather than Peripheral...My issue is w...

John Adriaan · 2019-09-17

Further to my previous question on the STM32L432KC at https://community.st.com/s/question/0D50X0000BAFA5fSQH/what-is-the-difference-between-these-two-clock-configurationsI am successfully increasing the clock rate from the reset rate of 4MHz to my de...

John Adriaan · 2019-08-19

I am reading the STM32Lxxxx Reference manual (RM0394 Rev 4, October 2018, DM00151940).On page 267, section 8.4 "GPIO registers" says "The peripheral registers can be written in word, half word or byte mode." Sure enough, any access works.On page 308,...

John Adriaan · 2020-05-04

I too need this information. So what you're saying is that they're willing for me to spend $1,500 of my money, but won't provide the instruction manual?I need to know how to power the board: there's a terminal block with three voltages (1.25V, 3.3V a...

John Adriaan · 2020-01-31

I completely missed that! Thank you! That explains why the executable is so large.@Community member You need to understand that the resulting binary will include everything that you've defined. Therefore it will include everything: more than the cod...

John Adriaan · 2020-01-31

Normally, an ELF file is a lot smaller than a bin file, since the ELF avoids huge amounts of zeroes that are usually in the bin. The fact that in your DEBUG case it's the opposite means that you have a huge ELF, with a lot of debug information (not u...

John Adriaan · 2020-01-31

@JW Not really? During the middle of an extended transfer, if half-words are fed in but bytes are read out, then the system handles the conversion by only doing one two-byte read for each two bytes out. It's the edge cases (either odd-byte starts or ...

John Adriaan · 2020-01-31

Note: I believe the OP was referring to the external Master SPI clock into the STM32L4 SPI Slave, not the internal STM32L4 clocks to the SPI peripheral...As for the Slave DMA issue, I agree--although the easiest remedy is to be diligent about the num...

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STM32WLE5CC: Minimum number of pins?

Basic SPI transmit

How long after increasing the clock rate do I need to wait?

Byte, half-word and word accesses to peripheral registers

Re: Is there a drawing and or pin mapping for the SPC58XXADPT176S?

Re: Generated Binary file size is too large(~2.3GB)

Re: Generated Binary file size is too large(~2.3GB)

Re: STM32L4 - DMA with SPI in slave mode doubles the first byte loaded into DMA

Re: STM32L4 - DMA with SPI in slave mode doubles the first byte loaded into DMA