STM32 MCUs Products

Ask questions, find answers, and share insights on STM32 products and their technical features.

cancel
Showing results for 
Search instead for 
Did you mean: 

Forum Posts

Clearing the OCxREF signal on an external event

Posted on May 03, 2013 at 11:15HiI'm having a problem with clearing the OC1, 2 and 3 references. I'm using the following code for configuring PE7 as the external trigger and for enabling the OCrefs clear:  /* Configure PE7 as External Trigger Input ...

External SRAM + USART Interrupt IO = USART RX Overrun?

Posted on May 02, 2013 at 15:23I have the following configuration: - STM32F4 MCU - 2 external SRAM chips (at 0x6000000 & 0x64000000) - USART1 running in Interrupt IO mode. - Stack in CCM The SRAM and USART code is almost verbatim from the STM32F4 ...

mfranklin by Associate III
  • 617 Views
  • 2 replies
  • 0 kudos

get break frame + stm32f103c8t6

Posted on April 25, 2013 at 04:13Hi everyone,I have already had a project about stm32f103c8t6 chip.I used rs485 to transfer data beetwen 2 board via SN751768P IC.I'm sure that all things about schematic are fine.I transfer data without break signal ...

STM32F4 Discovery: ST-LINK bricked

Posted on April 04, 2013 at 14:38Hello, out of a working setup, suddenly I dont get any connection to my ST-LINK anymore And LD1 is blinking red (f ~ 0.5 Hz). PA13/14 are not used in my program. Even in Device-Manager there is no ST-LINK recognized ...

dpfeffer9 by Associate II
  • 1075 Views
  • 6 replies
  • 0 kudos

HELP OMNIVISION CAMERA 0V9655 or OV7675 or OV(anything)

Posted on April 10, 2013 at 14:29Hi.I have the STM32F4DIS-CAM addon board for the STM32F4 Discovery. This addon comes with an OV9655 camera. I also have a OV7675 camera with the same connector and pinout.I am unable to get either of these cameras to...

How to debug hard fault handler exceptions?

Posted on March 26, 2013 at 02:34Hey all - thanks for taking your time to helpI have no idea how to track down whats going on. Opening debug explore seems logical - but I have no idea what to do with the address faults. I am not sure what they mean....

Peripheral view while debugging

Posted on May 02, 2013 at 20:52While working through the projects in the STM32F4Discovery Keil examples, the peripherals aren't available for view like they are when creating a standalone project. I can add a watch point for SPI2[as an example] and ...

USART2 problem....

Posted on May 02, 2013 at 19:20i am trying to interface gsm module , I want to use USART2 and USART3 ... but I am not getting how to do that can anyone suggest me ... thank you .. iam attaching the code i am using in the attachments . #rs232-di...

yogee00 by Associate II
  • 1257 Views
  • 7 replies
  • 0 kudos

Audio Compression

Posted on May 02, 2013 at 17:40Does anybody have a good ap note or direction for incorporating software compression on an audio stream? I'm using the discovery board[STM32F4] to record the audio[8KHz 16Bit] and would like to send over a wireless lin...

Audio Playback and Record, DMA from RAM

Posted on April 23, 2013 at 01:28When executing the audio clip from flash[const defined location as in the example project] the audio file plays fine, but if I remove the ''const'' as to allocate ram for the audio clip, I get only a small block of w...