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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 ...
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 ...
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 ...
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...
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....
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 ...
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...
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...
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...
Posted on April 18, 2013 at 11:04Hi,I'm using an stm32f4 on a PCB and suddenly it became extremely hot. The strange thing is that it still worked, but there was an extremely (relatively) high current running through the circuit. I've removed the stm...
