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Forum Posts

Problem with stm32F446 output on pa6 and pa7

Posted on January 22, 2018 at 21:58Hi, I've made a pcb using the stm32F446 mcu, 64 pin package, but I have a problem with it. I have four LED's attached to pa4 to pa7. Two of these work fine, but the ones on pa6 and pa7 only lights up entirely when ...

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DS18B20 HAL lib for STM32F0

Posted on January 23, 2018 at 14:33Hello,I have been looking for a library for the ds18b20 compatible with stm32f0 and with the HAL driver but without success, so I decided to modify old one to make it compatible.this lib uses while loop delay, the ...

RTC + STM32L NUCLEO + Contiki

Posted on January 23, 2018 at 10:37I found a strange behavior of the STM32L NUCLEO cards. I installed a sensor network using Contiki and I implemented an RTC. If I try to set RTC_SYNCH_PREDIV to a value above 1023 (for example 2047, 4095, ... up to ...

stm32f407 -- PINRSTF is set after power cycle

Posted on January 23, 2018 at 14:43Should the NRST external reset (PINRST) be set on an STM32F407 after a power reset?I want to be able to count the number of each type of resets in my code. The problem that I have is that the NRST pin reset is alwa...

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I2C comm issue between MCUs

Posted on January 23, 2018 at 12:57Hi,I am using I2C to send data between two STM32F4 MCUs with the same MCU working as a Master always. The master MCU controls a display and sends the slave a massage just when the user changes a parameter.I am usin...

DMA with ADC Injected mode/stm32f4

Posted on January 19, 2018 at 15:52hello, I'm working with the stm32f4-discovery Board , in fact i have a problem using the DMA with an ADC 'injected channel'. I've configured the DMA to transfer the converted data from the injected data register 'J...