LDR example
Posted on February 25, 2014 at 20:36Hello,i'm a beginner in STM32 can someone give me an example of how to use the LDR with STM32F1.
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STM32LDiscovery multiple analog inputs
Posted on November 16, 2014 at 17:25 Hi all, For a school project we need to work with theSTM32LDiscovery board. We want to make a kind of plantcare system that reads the temperature and light in analog values. Now we got to the part that we ...
Monitoring VDD using the PVD feature
Posted on December 18, 2013 at 23:00I am using a STM32F203IGT6 trying to detect low VDD using the PVD feature. This seems simple, but I cannot make it work. My initialization code is below. I start the peripheral clock set the PLS and PVDE bits (...
IAR: cost of branching, how to place a method into RAM and would it improve performance?
Posted on November 22, 2014 at 22:07I am trying to reduce the duration of my critical zones so I am checking which section of the code costs how many processor cycles. I am looking at CYCCNT and it seems as if entering or exiting a method alone cost...
STM32F0308-DISCOVERY: Issues with ADC and IRQ
Posted on November 18, 2014 at 11:58Hello,I encounter a strange bug with an ADC acquisition on IRQ. I use an eval board STM32F0308-DISCOVERY. I program this board with Ride7 and the RkitARM. The start code of the application is generated by STM32Cub...
STM32f439 PCB Design Consideration
Posted on November 14, 2014 at 15:15Hi I'm new in High frequency PCB design and i want to make my own STM32F439 board , so my question is : should i have any consideration in my design for signal integrity problems when maximum clock is 180 Mhz and ...
Creating a raising edge to wake up the micro controller
Posted on November 21, 2014 at 06:41Need help in understanding the http://www.st.com/st-web-ui/static/active/en/resource/technical/layouts_and_diagrams/schematic_pack/stm32vldiscovery_sch.zip used by the STM32VLDISCOVERY board.The http://www.st.com/...
DMA transfer (Reception) not proper when implemented with ethernet communication
Posted on November 24, 2014 at 07:54Hello there,I am using Lwip library for Ethernet implementation. I poll for the Ethernet packet in main loop. Then the packet is passed to further libraries to process it. Meanwhile I have also to receive 8 bit da...
cmsis dsp library: fft length
Posted on November 24, 2014 at 13:22Hi, If i understand correctly using fft functions like http://mazsola.iit.uni-miskolc.hu/DATA/segedletek/arm/cmsis/CMSIS/Documentation/DSP/html/group___r_f_f_t___r_i_f_f_t.html#ga3df1766d230532bc068fc4ed69d0fcdc,...
STM32 RTC Alarm Not configuring
Posted on June 26, 2014 at 15:07Hi,I am using STM32l151vbt6 MCU and I am trying to configure RTC Alarm for ever 15th minute that is 0, 15, 30 and 45th minute of the every hour. I can configure the Alarm and it will work for the first time, If I try...
