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4x4 KEYPAD

Posted on January 25, 2015 at 15:514x4 KEYPAD

kemal by • Associate II
  • 747 Views
  • 1 replies
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STM32F205RCTb USB OTG FS :Is Pull up required on DP

Posted on January 25, 2015 at 18:13We are using USB FS ( PA11 / PA12 ) in device mode. We have grounded ID pin i.e. PA 10 .We have not used any Pull up or pull down on DP and DM pin  as described in eval board schematics STM32 20-21-45-46 G-EVAL USB...

jagbir by • Associate
  • 1502 Views
  • 2 replies
  • 0 kudos

DMA2 Not getting interrupt

Posted on February 24, 2014 at 16:42The original post was too long to process during our migration. Please click on the attachment to read the original post.

ch2 by • Associate III
  • 7751 Views
  • 21 replies
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STM32F429 SDRAM unreliable

Posted on October 20, 2014 at 02:18I've copied the SDRAM hardware and software from the STM32F429 Discovery board. We've made a few boards so far. On some the SDRAM doesn't seem to work at all while on others it seems to work for a bit then get corr...

peterm by • Associate II
  • 2998 Views
  • 9 replies
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USB data buffer overlaps with stack leading to fault

Posted on January 25, 2015 at 10:27Hi,I am running a USB MSC project on my STM32L1 board generated using the CubeMX software.I am noticing that during enumeration, the device receives a Read10 request for 16 blocks of data (each 512 bytes in size). ...

bnp979 by • Associate III
  • 1971 Views
  • 3 replies
  • 0 kudos

STM32F4xx HAL UART BAUD Timing Issues

Posted on January 24, 2015 at 19:54 Hi there... Using the non-hal on an STM32F2xx, I can read/write at 3,333,333 BAUD without a problem. When I port the code to STM32F4xx, I am unable to read/write to the USART1 at the same BAUD rate - instead, ...

dj by • Associate II
  • 1113 Views
  • 1 replies
  • 0 kudos

Classroom development dilema

Posted on January 14, 2015 at 17:51I am teaching a course on embedded programming and am having some logistics issues I am hoping someone might be able to help with here.I have taught a class using the STM32F3 before but I had a linux environment av...

aes by • Associate II
  • 3709 Views
  • 9 replies
  • 0 kudos

STM32F072 Discovery as programmer

Posted on January 23, 2015 at 10:27I have just gotten the PCB for my first STM32-based design, using a F072CBT6 chip. The board is only populated with the power regulator and the CPU with its surrounding passive components. I have the F072 Discovery...

jesper by • Associate II
  • 1615 Views
  • 2 replies
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