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uprogrammed STM32F4

Posted on November 22, 2014 at 18:35Hi Are some PINs on an unprogrammed device high or low? I have an unprogrammed STM32F4 and a short circuit on the power supply 3.3V, therfore I can't program the chip... Regards

dominik by • Senior
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  • 2 replies
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STM32F4-discovery GUI_DispString()

Posted on December 21, 2014 at 11:43Dear friends.I try to use StemWin libraries with STM32F4290-discovery. As a base I used ADC-DMA project.The code is the following: RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_CRC, ENABLE); SDRAM_Init(); GUI_Init(); GUI...

baev_al by • Associate III
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  • 0 replies
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unique ID of mcu

Posted on December 20, 2014 at 20:25hi every onei have 2 question :1- is there a unique ID for each stm32 mcu ?how we can read this(if there is ) ?2-i need to save a few data in mcu which dosent erased after reset (like eeprom )is there any internal...

mhdizgah by • Associate II
  • 372 Views
  • 2 replies
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USB OTG interferes with ST-Link

Posted on December 19, 2014 at 15:10I have a problem where USB OTG sometimes interferes with the ability to program the MCU though the mini USB port. Basically what happens is that when I try to program the MCU, the software on computer halts. When ...

macfrenz by • Associate II
  • 781 Views
  • 6 replies
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Composite HID MSC - Periodic reset when SD not present

Posted on December 18, 2014 at 05:29I'm developing a composite HID and MSC device. The MSC is backed by a uSD card and FatFS.Everything is working great when the uSD card is present but if there is no uSD present DCD_HandleUsbReset_ISR is getting ca...

seanb by • Associate II
  • 767 Views
  • 4 replies
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parallel interface on stm32f407

Posted on November 12, 2014 at 11:55Hello I'm wondering how to create a parallel interface on the STM32F4Discovery Board, if possible. As far as the application, I would like to connect the Discovery to BLACK FIN DSP (BF592) I was suggested to do by...

sanjib by • Associate III
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  • 27 replies
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