STM32 MCUs Products

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ADC DMA access mode 1 missing in CubeMX 4.23.0

Posted on November 10, 2017 at 23:09I'm working with a Nucleo F767ZI and BSP F7 V1.8.0.When setting up a pair of ADCs to do dual simultaneous conversions, DMA access mode disabled and mode 2 are the only choices.  Access mode 1 and 3 are missing fro...

STM32F407G-DISC1 requires PC connection to boot

Posted on March 28, 2016 at 23:29Recently the STM32F407 discovery board changed part numbers from STM32F4DISCOVERY to STM32F407G-DISC1. The old boards could be powered directly via the 5V pins on the headers, or via a USB wall-wart, but the new boar...

trenton by Associate
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How to Fix Code 43 Errors for STM32F407G-DISC1 MCU?

Posted on November 10, 2017 at 18:54Windows has stopped this device because it has reported problems. (Code 43)  A request for the USB device descriptor failed. How to Fix Code 43 Errors for STM32F407G-DISC1 MCU?NOTE: MY BOARD IS STM32F407G-DISC1I H...

Perform Smooth Calibration on STM32L433 not working

Posted on November 10, 2017 at 21:03Hi, I need to calibrate my RTC crystal that is drifting about 7 seconds every 18014 that according to my calculations is about 389 ppm. I Tryed to perform the calibration with the following initialization code, bu...

luisf by Associate II
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External chip initialization through SPI problem

Posted on November 10, 2017 at 18:21I have an STM32F103C8T6 uC and an ASIC chip with memory. They communicate with SPI interface, ST being the Master device. On the uC lies a Firmware by the vendor of the ASIC device. I have been trying to shape it ...

STM32L496 SPI don't work 8bit

Posted on November 09, 2017 at 15:07Hi,i use a STM32L496.I configured the SPI to communicate 8bit but it always generates 16clk e 16bit data.SPI : MASTER- halfduplex 2wire(1clk , 1Mosi/Miso) /* Enable clock for SPI2 */ RCC->APB1ENR1 |= RCC_APB1ENR1_...

Power cycling after ROP setting

Posted on June 28, 2017 at 13:34Hello. My application hangs after setting the ROP to LVL1 and resetting the whole device. I have found some people had this issue as well and power cycling helped (which is my case as well). But it is kind of an incon...

n-pulse with variable duty cycle

Posted on November 10, 2017 at 14:09Hello, I'm working with STM32F4 Discovery Board and trying to generate a 16-pulse signal with variable duty cycle like this on the picture below.Currently i can generate 16 Pulse through One Pulse Mode. However i ...

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stm32f0 ADC internal temperature sensor

Posted on November 10, 2017 at 07:40 Hello. I need read temperature from internal sensor. But when i use code from examples, all time i have result more then 30 degrees of Celsius(~1760 - factory calibration value, ~1740 - ADC value in cold st...

STM32F0 SRAM DOUBT

Posted on October 26, 2017 at 15:57I'm using STM32F0 Discovery and need to store values in SRAM when MCU is powered off.I already removed SB1 shunt. Then VBAT is not powered from VDD but pin3 of P1 (VBAT pin supplied with 3V).When I turn off my STM2...

jmpo by Associate
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