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DMA counter resetting by itself

Posted on March 19, 2018 at 22:09Hello,Could someone tell me what I am doing wrong here?I would like to transmit on SPI (as slave) using DMA, and so have tied SPI transmit to a DMA channel, and set up an ISR to capture 'transmit completed' interrupt...

za kia by Associate II
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Resolved! UART output voltage information [STM32F413]

Posted on March 28, 2018 at 11:45Hi !I'm currently using STM32F413 uC.I can not find on the datasheet (and the reference manual) the output voltages of UART pins (or even GPIO).The voltage of course depends on the supply voltage. I'm currently power...

Jems On by Associate II
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Resolved! Why no systick interrupt happen??

Posted on March 23, 2018 at 13:11I ported u-boot 2018.03 to my own board based on stm32f767igt,i set some register with systick timer as below:as the above picture, the systick timer count is changed,but i couldn't get in systick handler?besides reg...

0690X0000060ABiQAM.png

uart with interrupt stm32L4

Posted on March 28, 2018 at 13:02trying to set up a UART  receive with interrupt so far no success code is below im using stm32l4any suggestions would be great thanks#include 'stm32l4xx.h'#include 'stm32l433xx.h'char uart3_tx_data[]=' is here again'...

STM32H757 : 2 or 3 CAN Ports

Posted on March 28, 2018 at 12:20Hi,As an engineer working in automotive industry, i very much welcomed new STM32F7 series adding 3rd CAN port. I wonder if STM32H7 series that will be available in 2018 will also have 3rd CAN bus ? If yes, we may thi...

detect new ethernet connection without reset

Posted on March 28, 2018 at 10:03Hello every body im using lwip netconn tcp protocol, to send and recieve data , i have a question ,when i connect my board ethernet cable it send and receive  but when i take the cable and put back i loose my connect...

stm32f0DISC board i2c device communication problem

Posted on March 28, 2018 at 04:38I'm using stm32f051R8Tx(stm32f0discovery) and I'm trying to connect with i2c devicesI used HAL-driver that CUBEMX provides and i succeeded  to communicate with i2c LCD device(LCD1602A).LCD works really well.However, ...