Ask questions, find answers, and share insights on STM32 products and their technical features.
Posted on July 15, 2013 at 18:50Hi , I am working on Cortex M4F CPU , its 168 MHZ , i know that Cortex M4F is 1.25 MIPS per MHZ so a quick calculation will give me total of 210 MIPS . Lets say i have an algorithm that runs 3 seconds , so what shou...
Posted on July 08, 2013 at 00:37Hello Forum, i am trying to get an overview of the various timer periphals present in the STM32 Mikrocontroller Family. It now seems that the two documents http://www.st.com/st-web-ui/static/active/cn/resource/technic...
Posted on July 17, 2013 at 08:59Hello,I'm trying to make a communication protocol via the UART. I have a M4 and an A8 which communicates via RS485 transmitters.For the trials, the UART is set to 9600 bps, 8 bits per character with one stop bit and a...
Posted on July 18, 2013 at 09:57I am using the STM32L151RBH6 which I believe is a medium density device, I am trying to get SPI working using the STM32Lxx_spi.c library but from reading the header at the top of V1.1.1 the I2S feature is not working ...
Posted on July 04, 2013 at 14:53Hi everybody, I'm trying to make the IAP exampe code from ST running on the Olimex board E-407 (STM32F4) but when i want to erase the flash, a hardfault occurs. More precisely, it happens right after setting the STRT ...
Posted on July 17, 2013 at 11:35 Hi, I have a problem with my CAN configuration, I try to interface the STM32 with a NI USB/CAN. The problem is the baudrate configuration I think, see my code below : GPIO_InitTypeDef GPIO_...
Posted on July 10, 2013 at 11:46I have some problems with DCMI (stm32f407vgt6 mcu).I saw on forums the examples of reading data from camera and sending it through DMA to LCD.What I want is to get the data from DCMI, save 1 frame to internal SRAM mem...
Posted on February 02, 2012 at 18:07I need a ''watchdog timer'' that automatically sets a port pin when it times out and not reset the processor. I don't think the IWDG or WWDG do this since they just reset the processor on time-out. Therefore, I th...
Posted on July 18, 2013 at 04:17Hi,everyone I have a question about SDADC and DMA.when I enable the DMA with'' DMA_Cmd(DMA2_Channel3, ENABLE)'' in program and the SDADC1 stop convert immediately. here is my code:void SDADC1_Config() { SDADC_Init...
Posted on July 17, 2013 at 21:12 When using the Audio_Playback_and_record example I was able to communicate with the codec[UDA1380] I2C interface[PB6, PB9] but when using PB6 and PB7[on my own board], I get a NAK even though the data appears to ...
