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STM32F4 USART3 IRQ & EXTI IRQ

Posted on July 09, 2014 at 18:53The original post was too long to process during our migration. Please click on the attachment to read the original post.

kyle by • Associate
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  • 2 replies
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STM32F4 Discovery - Write float in Flash memory

Posted on July 10, 2014 at 10:34 I'm trying to receive a float number through a VCP and writing it in the Flash memory of the STM32F4 discovery board. The functions used to write in the Flash memory (FLASH_ProgramDoubleWord...FLASH_ProgramBy...

filippo by • Associate II
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  • 4 replies
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STM32F4 I2S2 pin AF Multiplexer issue(s)?

Posted on July 08, 2014 at 15:54Hi all, when configuring I2S2 on Pins PB14/PB15 (SDext/SD)  I encounter that no data is ever output on those pins. When configuring PC2/PC3 as SD/SDext for I2S2 the data is output on that pins (but not on PB14/PB15)....

schauer by • Associate II
  • 1104 Views
  • 9 replies
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STM32 ADC basics

Posted on July 09, 2014 at 18:25Dear all,I'm new in embedded systems, and I have a few simple questions regarding ADC on STM32F4xx.1. In the processor block diagram, I can see that ADCs (there are three of them) are connected to APB2 that has operat...

marko2 by • Associate II
  • 881 Views
  • 3 replies
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Working without external crystal

Posted on July 09, 2014 at 18:54Hi,I'm working with STM32F401-DISCO on IAR.I'm trying to protect 2 sections of 16KB from the flash, I want to use the 2 sections for internal data.I tried to protect sections 0 & 1 , so I start the ROM from section 2....

gil23 by • Associate III
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  • 3 replies
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STM32F4 USART1 DMA -> clear DMA content

Posted on July 10, 2014 at 11:19Hi I configured the USART1 with the DMA Controller to receive 16 Bytes. In case if I receive just 1 Byte (Error on the line for example or when starting the sytem) then I like to delete the whole content of the DMA Co...

dominik by • Senior
  • 585 Views
  • 3 replies
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IAR EWARM zero-length array problem.

Posted on July 10, 2014 at 11:53Sorry for asking a bit of non relevant question here. I feel some experts here can help me out.I was implementing some code from OpenPilot firmware in IAR EWARM, got into a problem.I have described the problem at http...

harinath by • Associate III
  • 320 Views
  • 0 replies
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STM32F4 SPI buffer overrun problem

Posted on July 10, 2014 at 07:10 Hi, I'm trying to establish SPI communication between PIC18F2580 as master and STM32F4 Discovery as slave. Using logic analyzer,I found that PIC and STM32F4 actually sending bytes (PIC's MOSI and STM3...

flukeco by • Associate II
  • 347 Views
  • 0 replies
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Microxplorer suggestions for improvement

Posted on October 02, 2013 at 10:05Maybe it'sread bydevelopers from ST. I had two ideas for improvements - Somehow graphically distinguish outputs that are 5 volt tolerant - Add user defined (label) tag in which the user can observe what signal is ...

asrock70 by • Associate II
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  • 4 replies
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STMCubeMX V 4.3.0 STM32F37x

Posted on July 08, 2014 at 19:01Will not allow configuring both USB and CAN at the same time (forces both to PA11/PA12). Trying to configure USB on PA11/PA12 and CAN on PB8/PB9. CAN shows up in override list for PB8/PB9 but pins turn orange and stat...

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