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STM32F3-Discoveryboard confusion about LED's

Posted on November 04, 2016 at 12:42I've compiled and linked the original  sources without modifications  of the board. After upload and starting the demo with the debugger the initialisation should start with LED3. here the code snipped:  /* Initia...

hhosburg by Associate II
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I2C Multiplexer

Posted on November 03, 2016 at 16:08Hi I am triyng to use multiple MPU9250�s with Motion Driver 6.12 with STM32F4 Discovery. I am using TCA9548A 8 channel i2c multiplexer.In arduino solutionWire.beginTransmission(TCAADDR);Wire.write(1 << i);Wire.end...

ugur by Associate
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  • 1 replies
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stm32f401 with vs1053b

Posted on November 04, 2016 at 11:00Hi,I am working on STM32F401 with VS1053b. VS1053b (slave) is SPI interface with SPI1 of STM32F401rct( Master).     In order to communicate the vs1053b, we need to drive two different clocks of SPI SCLK (clock) i....

Kris1 by Associate II
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STM32F7 SPI pulsed mode problem: how to leave NSS low

Posted on August 19, 2016 at 10:01Hi all,I need to interface with a common IC which needs to have the NSS low during the complete message of 32 clocks. I have all working, DMA is triggered by a timer and fills the SPI data register with the complete...

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STM32F4 USB Layout

Posted on November 04, 2016 at 08:53Hi all,i want to build my own STM32 PCB with USB connection, I want to use the USB communication for sending Data via VCP(CDC) to the PC and to programm the STM32 via DFU. Currently I'm using the discovery board a...

luk by Associate II
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  • 1 replies
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Bug on I2C mem read DMA

Posted on August 16, 2016 at 09:51HiI posted a bug weeks ago without any response so I start this thread. (/public/STe2ecommunities/mcu/Lists/STM32Java/Flat.aspx?RootFolder=https://my.st.com/public/STe2ecommunities/mcu/Lists/STM32Java/possible%20bug...

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STM32F072 battery reading

Posted on November 04, 2016 at 00:59Hi AllI have the attached circuit and I need to read the battery level using ADC_IN18. I have the following instructions:Init:  ADC_InitStructure.ADC_Resolution = ADC_Resolution_12b;  ADC_InitStructure.ADC_Continu...

giulio by Associate II
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STM32F103CB Odd behavior at high, but not max temperatures

Posted on November 04, 2016 at 02:12We are seeing some failures in our chip at higher, but not max temperatures. We are using an external 16MHz crystal and operating at 72MHz.We are using the 85C rated chips.There are two sets of firmware that we ha...

k3nt00 by Associate II
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BackColor and transparency

Posted on November 04, 2016 at 00:52Hi I make some experiments with the board STM32F469I-Discovery and the examples provided by ST; using the example LCD_DSI_CmdMode_DoubleBuffering I noticed some problem with the transparency with the BackColor of ...

livio by Associate II
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F407 - ADC/DAC at 400 kHz and UART using HAL?

Posted on November 02, 2016 at 13:17Hi all, i think i am experiencing a timing issue here. I configured the STM32F407 using CubeMX and the latest HAL FW Package. I set the clocks to max using HSE (8 MHz) with PLL to run HCLK with 168 MHz and maxed A...