STM32 MCUs Products

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Forum Posts

STM32F3 Discovery board timer problem

Posted on October 16, 2014 at 09:03I am trying to implement 3-phase BLDC drive signal based on Hall effect inputs. I chose TIM1 CH1(PA8), CH2(PA9) and CH3(PA10) as PWM outputs with complement output enabled (PB13, PB14 and PB15). TIM_OCPolarity and ...

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song by Associate II
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STM32F4xx USB device CDC problem

Posted on November 06, 2014 at 22:23I have implemented a USB virtual serial port (CDC) device using the USB HS interface on an STM32F429 processor on an STM32F429I-DISCO evaluation board. The virtual serial port acts as a communication link between ...

krubow by Associate II
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SD card write operation and spikes in analog ADC data.

Posted on January 08, 2014 at 16:43Hi All,I am using STM32F4Discovery board to log data from six analog channels at 50 KHz on micro SD card. Thanks to this forum for the help through various posts, particularly from Clive1. ADC operates in triple AD...

prabhu by Associate II
  • 2703 Views
  • 15 replies
  • 1 kudos

STM32L0x1 does not start below 3V

Posted on November 06, 2014 at 17:30Our design is operating properly on 3.1V PSU. When we try to start it with 2.9V PSU, it does not start.If we boot at 3.1 V and then reduce the voltage to 2.9V, it stops.The Brownout Reset (BOR) is set to 'disabled...

STM32F301K8U6 connection of exposed pad

Posted on November 06, 2014 at 15:07Hello, I am designing a PCB for STM32F301K8U6 (UFQFPN32 package) I connected the exposed pad area with the ground but currently I am not sure if its correct. There is not a word about what to do with it in the htt...

STM32Cubemx 4.4.0 generation bug

Posted on October 22, 2014 at 18:29Hello everybody! Where can I download a previous version of the stm32cubemx? A newest version has generation bug, the generated c files not working. The initalization paramater sets in the structures but the init f...

totti001 by Associate II
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  • 9 replies
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STM32F429 with WVGA LCD

Posted on June 19, 2014 at 09:57I'm looking to drive an 800x480 LCD using an STM32F429 and the STemWin graphics library, due to the other peripherals needed from the chip, the SDRAM will most likely be limited to 16-bit. Could this be a serious perf...

sam2 by Associate
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  • 2 replies
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Using TIM1 for SPI CLK

Posted on November 05, 2014 at 20:30I need to have 2xSPI synchronized and also synchronized with some timers.Unusual use of TIM1. (STM32F401VC, discovery board)I use TIM1 in repeat and one pulse mode to generate 8 CLK for 1 byte of SPII have a worki...

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stegu by Associate
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STM Studio and elf file from GNU ARM eabi 4.8

Posted on November 01, 2014 at 12:03Hi all, I have issue with importing variables in to STM Studio 3.3. Import shows me only few variables (usually only uint8_t type), rest variables of different types (uint16_t, uint32_t ..) are not in list. Elf fi...

FPU comsums seeable extra power?

Posted on November 05, 2014 at 12:11Hi  everyone! I have a project where necessary to use FPU to proccess my AD data. If I enable the FPU in the uVision Keil, then I can see an extra noise on my power line and I get wrong values, but when I disable ...

Attila by Associate II
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  • 6 replies
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