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STM32F407VG using USART with DMA

Posted on March 31, 2017 at 07:13Hi everyone,I wanted to move a data array(source) to another data array(destination) using USART2 and I wanted to move datas to usart2 and from usart2 by using DMA1. I connect the tx pin to rx pin and it worked. The ...

mk61 by • Associate II
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Need help with STM32F7 SDMMC DMA READ

Posted on December 31, 2016 at 00:27Hi, all, I have a STM32F7 Discovery board (chip is STM32F746NGH6 ). I have implemented my own SDMMC layer  (bare metal, no HAL or ported STD peripheral libraries. It is working very nicely using polled mode for SD...

Hardfault and HRTIM

Posted on March 30, 2017 at 17:19Hello, I have a STM32F334 on which I use the HRTIM1 in a SEPIC converter.The PWM section works the way I want it to, but now I want the system to stop in case of a Hardfault. But for some reason I can't get this to w...

FreeRtos Debug Variables + MIPS measurements

Posted on March 31, 2017 at 11:25HiI am new to freertos.How do I measure time spent in IDLE loop? Where is the IDLE loop anyway?What are the most important debug variables in FreeRTOS?Does Freertos comes with MIPS measurement functionality?THX

I have a STM32F407VG6 DIY board

Posted on March 30, 2017 at 21:18The board can't function properly, it can be downloaded using ST-LINK but the output doesn't match with the program I wrote. Is it because the oscillator? I watch the oscillator signal and it is different from the ri...

Slowing down Timer bus frequency

Posted on March 31, 2017 at 08:57Hi,I need to use a timer period between 2 us and 500 s, so using the timers inside an STM32F7 I calculated that slowing down the bus of the timer to 8MHz I can cover all the range with differents values for the presc...

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