Ask questions, find answers, and share insights on STM32 products and their technical features.
Posted on May 01, 2012 at 17:29I'm simply looking to have the STM32F4 startup using the HSI clock (at the default 16MHz). How best can this be accomplished (if it's not already default). What clock does the STM32F4 natively startup using? I was t...
Posted on April 05, 2012 at 01:00Hi, I need some ideas on a problem I'm experiencing.I have an STM32F2xx based product (an automotive sensor of sorts) which has just started field testing. The electrical interface to the product is 4 wires - +V, GND...
Posted on May 02, 2012 at 03:04 #ifdef __GNUC__ /* With GCC/RAISONANCE, small printf (option LD Linker->Libraries->Small printf set to 'Yes') calls __io_putchar() */ #define PUTCHAR_PROTOTYPE int __io_putchar(int ch) #else #define PUTCHAR_PROTOTY...
Posted on April 30, 2012 at 00:58Hi guys.I have been playing with Stm32f4 discovery for couple months.My problem follows like this;I have to take 2 vga images from CMOS camera and store them.I will make some mathematical operations on both images.An...
Posted on March 26, 2012 at 16:03Hi, I not having much success with using the UART (USART1) on my F4Discovery board (STM32F407). I am pretty new to STM32 and Keil (the IDE I am using). Here's my code: &sharpinclude ''stm32f4_discovery.h'' &sharpincl...
Posted on April 21, 2012 at 11:27Hi there,I'm trying to implement an enumeration test on the I2C bus with my own driverbut I haven't figured out how to deal with a timeout on the address.After I send the address of the slave, if nobody respond withi...
Posted on April 30, 2012 at 19:54I'm running into a strange issue where if I have the RTC auto-wakeup enabled, I intermittently get hard faults when I run the software through the debugger, break, then step through the code. Seems to happen more fre...
Posted on April 30, 2012 at 16:17Hi, I wish to acquire data in continuous mode from Uart, without that the acquisition is completed every packet but after all packets are sent. Thanks for every help. I attach my code. #dma-usart
Posted on April 24, 2012 at 20:28The1-wireprotocoluses onlyoneport to sendand receive data. What is theconfiguration modefor theGPIO_Mode?What is themethod toaport toreceive andsend data?
Posted on January 26, 2012 at 05:07Got freertos running on Discovery board STM32F4 Following is function which initializes USART, but i see only garbage coming out hyper terminal, void xSerialPortInitMinimal(unsigned portLONG ulWantedBaud, unsigned ...
