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UART data transmit DMA problems

Posted on March 06, 2018 at 16:22Hello,i am working on a application where i try to measure a motor speed and current,  and then send the data to the PC using serial uart.The device used is a STM32F427For controlling the motor i used a timer1 6pwm c...

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Bogdan by Senior
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USB HS Host BenchMarks

Posted on March 06, 2018 at 23:40Did any one test USB-HS Host throughput benchmarks for both Tx and Rx?In device mode i am getting around 120 Mbps (both tx and rx). Even STM replied that they are seeing the same speeds. But the results don't make se...

STM32CubeMX Makefile option.

Posted on March 06, 2018 at 23:19I recently upgraded my CubeMX from 4.18.0 to 4.24.0 and was  very pleased to see a new 'Makefile' option under Project->Settings->Toolchain/IDE.   I'd previously used SW4STM32 and then ran a python script to generate...

HAL UART_IT receive different length commands

Posted on March 06, 2018 at 19:03I am using the STM32F042F6 with ARM Keil toolchain. I am trying to use UART interrupts to receive commands of different lengths. I have managed to get it some what working using the attached code. I have made a recei...

STM32L475 flash reseted

Posted on March 06, 2018 at 17:55Hello,I'm working in my own prototype that is based on the STM32L475 device.Application is working fine: in this application, some data are saved into a reserved flash area. The problem I have found is that flash con...

SWP communication and still debug?

Posted on March 06, 2018 at 10:24 Hi I am using STM32L4 Nucleo board to develop an aplication which will be using the SWPMI port. I've been reading around and seems that the debug framework is already using it? So my question would be, how do I...

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An error on AN4013 OPM Pulse Length Formula

Posted on March 04, 2018 at 22:18Spotted a small error on the Timer application note AN4013r6 (Cross Series Timer Overview), page 15.Pulse Length of a One Pulse Mode is shown as: Pulse-Length = (ARR - CCRy)/(TIMx_CLK/(PSC + 1))..but by referring to ...

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Problem with working on 2.5V

Posted on March 01, 2018 at 11:10 Hello! On the PCB from LDO( MCP1700T-3302E) 3.3V are supplied 2 chips: GPS : SIM 68 M, STM32L475RET6. GPS power supply is controlled by STM. When STM turn on GPS module voltage temporarily drops to 2,...

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STM32R7: USB Com Virtual port sometimes duplicate bytes

Posted on March 01, 2018 at 19:03Hello,recently I am trying to make some device communicating via USB virtual com port. Firstly, device has sometimes problem to enumerate itself:[1922765.320415] usb 1-1.2: new full-speed USB device number 34 using e...

semler by Associate II
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