About KDesr.1

KDesr.1 · 2024-08-02

I have the STM32G431 set up to sample ADC2, send the data to the FMAC and then out to DAC1. It works fine, I have tested all kinds of filters with it. However, none of the HAL functions that use SysTick work after I start the FMAC. I'm using the s...

KDesr.1 · 2023-05-16

I have an analog circuit that is read by an ADC input. I would like to have a self-diagnostic function where I inject a known signal to the input of that circuit with the DAC for a self test, then disconnect the DAC from the pin and leave the pin in...

KDesr.1 · 2020-09-21

I am able to read my two ADC inputs individually when I implement the code shown in this example: http://embedded-lab.com/blog/starting-stm8-microcontrollers/13/However, the ADC values in the buffers do not seem to be getting updated when I try to ge...

KDesr.1 · 2020-09-16

I have been working on a battery powered application and am experiencing some strange behavior when the batteries are dying. The LED array is being driven by a PWM signal on PD4 through a FET. When the +4V power line goes down to 2.6xx V, all of th...

KDesr.1 · 2020-04-13

I'm using the latest version of STVD in Windows 10 (up to date). I'm trying to connect to an ST-LINK V2, but as soon as I select Tools>Programmer, STVD crashes. I also have STVP installed and am able to program my device with it, but I would reall...

KDesr.1 · 2024-08-02

Yes, something was maxed out. Increasing the sample time got things working, but at a lower sampling rate. In order to maintain the 100kHz sampling rate, I had to up the clock to 170MHz from 100MHz.Guessing this is an issue due to the way the ADC i...

KDesr.1 · 2023-05-17

Well, it wasn't that complicated. The DAC doesn't interfere with the input until you execute the HAL_DAC_Start command. It stops interfering (i.e. the pin goes high impedance) when you execute the HAL_DAC_Stop command. Really easy!

KDesr.1 · 2023-05-16

That is what I surmised from the datasheet as well. Those set to off when the DAC is initialized by the HAL function, so I am thinking I can either just use the HAL function in the op or a direct write to the DAC_MCR register to disconnect the DAC f...

KDesr.1 · 2023-05-16

I believe the pin is higher impedance in analog mode, no?

KDesr.1 · 2020-09-21

No, from a single AA battery. There is the possibility of a white LED (often have very high Vf - some up to 3.6V) with no budget for a separate LED driver.The 8 pin device is nice, but I may need up to 8 or 9 I/O lines. Size wise, I think I am limi...

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Starting FMAC kills Systick in STM32G431

Connect/disconnect DAC from pin on the fly for a diagnostic test?

STM8S ADC Scan Mode not updating

STM8S003F3U outputs behaving weirdly during BOR.

STVD crashing when I select Tools>Programmer

Re: Starting FMAC kills Systick in STM32G431

Re: Connect/disconnect DAC from pin on the fly for a diagnostic test?

Re: Connect/disconnect DAC from pin on the fly for a diagnostic test?

Re: Connect/disconnect DAC from pin on the fly for a diagnostic test?

Re: STM8S003F3U outputs behaving weirdly during BOR.