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Hello,I am currently working with the B-L475E-IOT01A board. Through bluetooth I would like to use the mode in which I send data periodically and an external device, when it enters the transmission range, can read this data.So I was wondering which of...
Hi,I've been trying to synthesize different waveforms with my F446 DAC. Three things have come to my attention here, which I can't explain. First, when I am using the full range of the DAC with values from 0 to 4095 the signal gets distorted like thi...
Hello,I have a strange problem... We have a bunch of equal boards (STM32H743XIH6) from manufacturer and some have temperature dependent problems (3 of 20). The problem seems like a software problem, but many software changes couldn't reproduce this.I...
I have two stm32 on my board. I send serial data from stm32f407 to both max232 and stm32h743. The output data from the max232 is correct. but when I debug the stm32h743 input serial data, its data is incorrect. what is the problem?
The sample code uses p256v1 (which seems to actually be p256r1). This curve works well.I Got PKA to sign correctly using p256k1 with some minor curve updates.I am having trouble setting up p224r1. Has anyone got curves other that p256 to work?Tn...
I just purchased the NUCLEO-STM32L47RG, and have tried using the following code below to press a switch to turn an LED on. However the code doesn't seem to actually be loading onto my microcontroller, I'm using Keil uVision 5 IDE if that makes a diff...
We are using LSE 32,768. RTC looks like runs correctly if power is on. But if we disconnected power, RTC still hold data but run slower, about 2 seconds / 5 minutes.We changed new battery, even used power supply to feed vbat pin, same issue.I tried ...
Hello all, At the moment I use TIM2 on the stm32f4 - Discovery Board to count pulses (rising edges). How can I adjust the thresholds for the rising edges ? I want to count 1 V pulses. At the moment it is just possible to count 2V pulses.Here is the c...
Hello,I have struggled to use AT COMMANDs for communication between ESP8266 and STM32F4.I should use ESP8266 as non blocking mode .Because my main project is FIRMWARE OVER THE AIR. 1)STM32 GETs the datas of new code via ESP8266 using 'AT COMMANDS'.2...
I'm trying to program i2C1 interface of STM32L151 with 3-rd side tools - Algocraft WN programmer.The sequence of operations attached in the DOC file.After these operations the START bit does not generated (checked by scope) and MASTER bit doesn't app...
