Posted on May 28, 2012 at 07:28How should multiple interrupt flags be handled in the timer ISRs? 1. Handle all flags at the same time? 2. Handle a single flag? My code originally did #2, but I found sometimes I would get into a state where an interr...
Posted on May 28, 2012 at 07:21I'm actually hunting down a weird case where sometimes the timer counter matches the CCRx register but I never see the CCxIF flag set. This seems to occur when the compare occurs when I'm in that timer's ISR handling a...
Posted on May 26, 2012 at 11:28With the latest release of dfu-util (which supports DfuSe devices since 0.5) we also offer Win32 and Mac (ppc) binaries at http://dfu-util.gnumonks.org/ For a DfuSe usage example (and a link to Ubuntu binaries) please ...
Posted on May 25, 2012 at 18:50Hello, I am working with a STM32100 RBT6 microcontroller. I was working on a firmware and as the souce code grows up a I had the software starts reach the hard falt handler. I loocked for the CFSR register and the IACC...
Posted on May 24, 2012 at 08:52I have lots of experience with the Arduino and the STM32F4 is my first ''real'' step into microcontrollers. I've downloaded all of the PDFs and the firmware from the STM32F4DISCOVERY page. They have been helpful but I'...
Posted on May 24, 2012 at 16:36I use ST Visual Programmer and http://www.st.com/internet/evalboard/product/250863.jsp. During programming I set Read Protection ON. But now I can not erase or reprogramming the chip (STM32F103RB). I can see ''The devi...
Posted on May 25, 2012 at 03:36I'm having some issues with the SPI on the STM32 and I can't seem to figure out what the problem is. I'm having issues on both the TX and RX directions. I'm using it in master mode in both cases. I have multiple devi...
Posted on May 21, 2012 at 22:51I have been using a Keil MCBSTM32 demo board for many months. I've been using the ST flash loader to program the STM32 on the board with no problems. Today I made some (probably incorrect) modifications to my code, r...
Posted on May 23, 2012 at 11:52Hi, I am trying to use the OLIMEX STM32-P103 (ARM cortex M3) as SPI master to get some information from an accelerometer but, I dont know how to use SPI. Even after many hours of searching on the internet i did not fou...
Posted on May 23, 2012 at 09:33Hello, I read this application note about secure firmware upgrade http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/APPLICATION_NOTE/DM00044227.pdf So i want to ask about the encryption method tha...
