STM32H7 ADC Accuracy
Is there any known quantification for how the calibration improves the accuracy of the ADCs?
STM32 MCUs Products
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Rust, STM32L451, entering Stop Mode
Hi, I have a problem entering Stop Mode 2 with STM32L451CCU6. My current consumption is around 600 uA, while expected should be much lower. What can cause this problem? Here is the code: use cortex_m::asm; use cortex_m_rt::entry; use stm32l4xx_hal::...
Resolved! ADC Reading Consistency
I am feeding 1.75V into an ADC input on a STM32F407 and see the voltage source is clean and consistent on a scope. I continuously read the value every 20ms. I see the ADC value change between 2108 to 2130. How consistent should the value be? I'm ...
What is the purpose of OSC32 in STM32
I am designing my first PCB. I am working on the project that needs low power consumption. For this we chose STM32L031G6U6 microcontroller. After collecting some measurements, the CPU will be put into sleep mode and wake up every minute or so for a f...
Clear SPI Rx buffer using DMA and resume receiving.
Hello. Two NUCLEO-G431RBs are used for SPI communication.One is used as SPI master and one as SPI slave, and the pins of SCK and MOSI are connected to each other using jumper cables. Communication works fine most of the time.However, when the other p...
Resolved! STM32H753ZI Internal pull up resistors not doing anything?
Hey guys,Kinda pulling my hair out as to why the pull up resistor is not kicking in? I am expecting when the MCU boots up to see a nice high signal on PA4, but nothing. I am not sure what I am doing wrong. if I write a 0x01 into ODR it then pulls up,...
Reading RPM from Motor using hall encoder
I am trying to implement a code that can read the velocity of a DC motor with built in encoder. I am using STM32 F446RE and a CQrobot motor equipped with an Hall encoder.. specifications below:http://www.cqrobot.wiki/index.php/DC_Gearmotor_SKU:_CQR37...
Resolved! DMA access on M7 Device
I'm using a STM32H745 MCU, with two processors, one of which is an M7. With the M7 I have problems with the DMA, I have seen that it is a very discussed topic on the internet, where there are many solutions, but I still have some doubts: I would like...
CANBUS Working on Loopback but not in normal
I am trying to set up a CANBUS connection between two STM32L4 Microcontrollers and while having has been setup correctly and none of the microcontrollers are sending error messages I cannot seem to get a Receive message from either CAN transceiver.Th...
External power supply STM32L432KC
Hello,I was experimenting with the L432KC board. While connected to the computer everything worked fine, but as soon as I tried to use an external power supply everything stopped working. More specifically the board's led LD1 slowly flashes when conn...
