STM32F4Discovery I2C Example
Posted on October 26, 2012 at 14:24Hello everybody!Does anyone can give my working sample of connecting two stm32f4discovery via I2C?I've spent a lot of time, but nothing works.Thank you! #stm32f4discovery-i2c
Forum Posts
My Solution to Issues with RTC and Alarm Wakeup
Posted on June 15, 2012 at 19:06Hello Everyone, I've had issues a couple times getting my Real Time Clock to correctly alarm and wake up my processor. My most recent issue had me reading through many posts on this site to try to figure out my probl...
Problem with clock configuration STM32F205RBT6 RevX silicon
Posted on October 24, 2012 at 17:49I use an external 8.0 Mhz crystal connected to the HSE pins. I use STM32F2xx_Clock_Configuration_V1.1.0.xls utility with HSE_OSC setting to 8.0 MHz and HCLK setting to 120.0 MHz and let generate the file system_stm...
STM32L-Discovery Demo Project for Keil
Posted on October 25, 2012 at 23:16The demo project for the STM32L-Discovery download only has a project for IAR EWARM, this is the default project loaded on the new boards. That wasn't very useful for me so I ported it to Keilhttps://docs.google.co...
STM32F103 PA15 as GPIO
Posted on October 25, 2012 at 21:49Hello, I�m trying to use PA15 pin as an output on STM32F103CB chip, but with no luck. Because this pin is shared for JTAG, I must use remapping, First I enable clocks: RCC->APB2ENR |= RCC_APB2Periph_TIM1 | ...
changing irq handler
Posted on October 25, 2012 at 16:17What is the best way to change the irqhandler to be used. I have a number of situations where the operations need to change depending on what the board is doing. Don't want to have a load of ifs or switches inside ...
low power STM32L speculation
Posted on October 25, 2012 at 16:25Hi. Erased state of flash memory in STM32L low-power devices is 0 instead of more common 1. What is the reason for this? If I will program unused flash portion to all FFh, will this impact current consumption in an...
SPI1 DMA channel/stream
Posted on October 25, 2012 at 14:38Where do I find out what DMA channel/stream i need to use for SPI1 TX.not sure which st document has this information in it?(stm32f4)Thanks :)
Flashing STM32F405 with ST link utility
Posted on October 24, 2012 at 21:07Hi all,After flashing my board based on a STM32F405RG with ST link utility (Hex compiled with GCC under eclipse), I can't communicate anymore with the core. I have this error :Cannot run core while booting from fla...
ST32f4discovery+sdcard+fatfs problem
Posted on June 30, 2012 at 23:43Hello, i have a small problem i think.With the help of this forum and google i created a project with CoIDE.What it should do is reading the directory of an SDCARD.The SDCARD part is working. but the fatfs is not work...
