STM32 MCUs Products

How to change the number of ranks after ADC initialization

I use 6 ADCs.I use 3 channels(Ch1, Ch3, Ch13) for ADC1.I use 3 channels(Ch2, Ch4, Ch15) for ADC2.Use DMA1 Channel1, DMA1 Channel2 respectively.DMA1 Channel1 is used by ADC1,Number Of Conversion is 3, Rank 1 = Ch1, Rank 2 = Ch3, Rank3 = Ch13.​When usi...

STM32G070 And Bme680 help i2c

hi i'm trying to use the bme680 but i can't find any library for it ,plus the datasheet is so confusing if you had any luck using it please help thanks in advance

How to handle asynchronous (data size of 240000 bytes) data from MQTT in STM32

I am using STM32L475 dev board and SIM7600 4g module. I have implemented MQTT communication in this project. I can successfully connect to MQTT broker and also able to receive the data. But the problem is size of data is large (240000 bytes ie 234.37...

Problems with I2C register code (STM32G0x1)

I am attempting to write register level code to control the I2C peripheral in an STM32G0x1.My read function is failing because the RXNE bit is never getting set. I believe I have implemented the state machine described in RM0444 (p. 958). Is there ...

About the STPM32 metering chip. In your document UM2092 you refer to a source file called handler_metrology.c, but in the firmware package (en.stsw-stpm002.zip) there is no such file. I also don't find it on Github.

I have made a target board using STM32G484VE . I am using 11 ADC pins spread across ADC1 - ADC5. I have introduced a 3.3V Zener BZT52-B3V3 as a protection at all ADC inputs, but all the ADC voltages read 0.6V less from the actual voltage ? Any reason ?

I have made a target board using STM32G484VE . I am using 11 ADC pins spread across ADC1 - ADC5. I have introduced a 3.3V Zener BZT52-B3V3 as a protection at all ADC inputs, but all the ADC voltages read 0.6V less from the actual voltage ? Any reason...

[AN2834] Is the LM235 a temperature sensor or voltage reference? (Errata?)

​Hi,​Maybe the TL431 is a voltage reference.

STM32H7 stopping a SPI TX transmission via DMA with a external GPIO trigger

Hi ST community,​I'm using a WiFi module, which receives data with SPI. The WiFi module has NORX pin, which indicates whether the module can accept the data or not. The data bits sent when NORX is set to high are discarded. So, when transmitting a SP...