STM32 MCUs Products

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please suggest STM32F4 series Microcontroller

Posted on March 16, 2017 at 16:21HiWould anyone please suggest STM32F4 series Microcontroller, sample code and reference schematics based on following requirement  : Interfacing with LCD with integrated controller (TFT Touch 3.5 inch)Calendar RTCUS...

DMA underrun error detection

Posted on March 16, 2017 at 18:29Hello all,I am using the DMA (direct memory access) unit to generate a sine wave. I flip between the frequencies often in my application. Sometimes the output signal get stuck at high frequency when I move fast from ...

raiyans by Associate II
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Resolved! Bug in stm32f4xx_hal_rcc.h v1.5.0

Posted on November 18, 2016 at 14:11 #define IS_RCC_PLLQ_VALUE(VALUE) ((4U <= (VALUE)) && ((VALUE) <= 15U)) This line doesn't fit to the RM0390 (page 126): 0000: PLLQ = 0, wrong configuration 0001: PLLQ = 1, wrong configuration 00...

Eugene S. by Associate III
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Typo in STM32F030

Posted on March 16, 2017 at 16:05I found a typo in the interrupt vector table of the STM32F030 & STM070 Reference Manual RM0360 Rev 3.On page 172, an additional 'Reserved' line is inserted at position 19.  Also, the address given for the 'Reserved' ...

dale by Associate III
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How to write to the SRAM2 memory on STM32L476?

Posted on March 10, 2017 at 09:54Hello, How do I write a variable to the SRAM2 on an STM32L476 ? I am putting the uC in the Standby mode and I am preserving the SRAM2 memory, but I cannot manage to write to it. I am trying like this:&sharpdefine VAR...

anio1491 by Associate II
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STM32F469I as USB Host communicating with modem

Posted on March 16, 2017 at 10:00Hi.I've got external modem that enumerates 6 virtual com ports and only one of those are available for AT commands. I've looked at the examples and the libraries and I do not quite get how to choose the com port that...

STM32 CubeFx FatFs update to support exFAT

Posted on November 15, 2016 at 16:08Hi, Chan has updated FatFs to version 0.12B but the bundled FatFs in CubeF0-F7 are all sitting on v0.11.The reason I want to update to 0.12B is because of exFAT support for USB Flash memory.I have tried to work ou...

bobaruni by Associate II
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Microcontroller malfunctions!

Posted on March 15, 2017 at 09:49Dear friends,I have designed a PCB board to communicate with Modbus devices. I've use STM32F103RBT6 mcu and ADM485JRZ for RS485 communication. I have not soldered any other parts of the pcb except the micro and ADM48...

Mujtaba by Senior
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Power and STM32s

Posted on March 13, 2017 at 09:08HelloOur team is using STM32F103R8T6 and STM32F405R8T6 for a robot and for some reason sometimes when we turn the power on (from battery or a DC power Supply) the MCUs short from the inside and when we change the hea...

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STM32F4 PLL I2S continous clock generation

Posted on March 12, 2017 at 00:13Hello,i have a question about MCLK and LRCK generation on an STM32F4 system.I want to connect an Audio ADC to an SPDIF codec which need an continousMclk and Lrclock. I have the option to use an external 24.5760 Meg c...