STM32 MCUs Embedded software

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USART - reading 1 byte at a time

Posted on February 19, 2017 at 13:39Hi,I need to parse incoming data from UART, with unknown length.The packet length is sent within the packet, so I need to parse the packet as it arrives.So - I need to read 1 byte at a time, and parse the packet w...

Custom Bootloader STM32L151x

Posted on February 17, 2017 at 17:17Hi community,I would like to know if it's possible to create my own bootloader for STM32L151x.Where I could find info about it? Some code? Built-in code..?Thanks in advance.Regards#bootloader #stm32l151 #custom

Stm32F407VG USB Problem

Posted on February 18, 2017 at 09:17Hi,I am using STM32F407VG chip in my own PCB. I design MCU part of the PCB according to DISCOVERY board since it has the same controller. The board seems to work just fine. I tried ADC, DAC, SPI, USART, and simple...

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I2C not working with usb

Posted on February 19, 2017 at 19:59Hello EveryoneI have a odd problem. I am using USB device to store data and reading data on same MCU(Slave) from other MCU(Master) on i2c but after after 2 or 3 transfer of data i2c stops working on slave mcu.What...

How to Debug FreeRTOS?

Posted on February 16, 2017 at 21:38I remodeled DemonstrationProgram of ST32Cube into STM32F746G-Discovery and was able to play the MP3 in audioplayer.My MP3Program may sometimes do Stall in Error.Will there be the good method to perform of Debug in...

F3 PWM inverted out: Cube bug?

Posted on February 16, 2017 at 17:45Using CubeMX I wanted to set four pins for PWM generation on an F302RCT, so it happened to get channels 1, 2, 3 and 4 on pins 27, 41, 44 and 45. Channels 2 and 3 fell on inverted output pins.When turning all pwm's...

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USB pcd DMA not working

Posted on February 16, 2017 at 15:05Hi,I am using an STM32F7556NG microcontroller, connecting it to a host PC via USB, with the STM32 acting as a virtual COM port. Since the December 2016 release of the HAL, I have noticed a few strange things in th...