Posted on May 21, 2014 at 03:52Browsing through the STM32 F405 datasheet, I'm noticing serial ports with functions listed multiple times even on the same chip. At first I assumed (for example, USART1 TX) would be listed multiple times, but on any gi...

Posted on January 27, 2014 at 23:27Given an F4 (F405 and F429) or even F2 .. Is it possible for a DMA to be both MemoryToMemory and have the rate of delivery be set by a timer? ie: I'm effecting a copy from an array in RAM, to a GPIO. (a byte at a t...

Posted on January 20, 2014 at 16:44I'm on an STM32 F2, but a generic idea would be ideal  Is there any way to get a high level 'reasonably' accurate idea of how busy the cpu? Given the variety of peripherals and so on I'm sure its quite a challenge...

Posted on January 14, 2014 at 22:24I'm quite likely missing something obvious to someone, but so far this is eluding me  I've got an STM32F205RE by itself on a breadboard (no eval or discovery board here.) I'm using libopencm3 for linker-script an...

Posted on January 10, 2014 at 23:38I don't have one of the discovery boards (I know, I know ;), just a small stack of F205 chips. I'm breadboarding one up so I can get a handle around it, and having trouble identifying the minimum circuit needed for...