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Forum Posts

Changing counting direction on encoder interface

Posted on March 01, 2013 at 15:57Hi all. I want to measure length between 2 pressure pistons but I don't know can i change the directon with changing IC1 edge align mode or IC2 edge align mode on x4 resolution mode for example 1-) TIM_EncoderInterf...

URGENT HELP IN UNDERSTANDING CMSIS PID IMPLEMENTATION

Posted on March 07, 2013 at 23:53Hello, I will like to implement PID in CMSIS but the documentation lack clear instructions and examples.Can someone be kind enough to explain the below function and answer the few questions.   void file:///D:/ARM%20E...

Double Calculations causing hard fault

Posted on March 07, 2013 at 07:23Hi, Im trying to do some calculations on a STM32F4 discovery board and I keep getting hard faults when I try to run the code. The is being ported over from a PC application but the lines that are causing the issues a...

pisaacs9 by Associate II
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Problem with printf on F0

Posted on March 07, 2013 at 20:21Hello, I have project in Keil for demonstrating USART on STM32F0.Program is working fine with putc, but with printf it isn´t working (building of program finish success in both case). Why printf isn´t work? My main...

hospodar by Associate III
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SPI on STM32F4

Posted on March 07, 2013 at 03:41Hello,       migrating from STM32F1xx to STM32F407. Having difficulties configuring 4-wire serial, sub-optimal documentation for the F4 series, in my opinion. There's a nice section in the reference manual for the F1...

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Is DAC output on PA5 usable since it connects to L3GD20?

Posted on March 07, 2013 at 20:46On the STM32F3-Discovery, PA5 is connected to the L3GD20 gyro chip's SCLK input. In general CMOS devices to not like having input hanging around voltages in between a good Low or High.  It causes excessive current co...

Issues with SPI 2 on STM32f100RB

Posted on March 07, 2013 at 17:02 I will need to use spi with a memory chip. But I currently can't get my spi to input data. I am able to get it to output. I have a logic analyzer hooked up and it shows data is being outputed. When I do a loop ...

kaylee by Associate II
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fsmc and usart3

Posted on February 01, 2013 at 15:27i'm using stm32F103zc using its fsmc 8 bit mode and usart3 (PD8 PD9), can this design work ok? thanks

Using Bootloader Via USB With STM32F4

Posted on March 06, 2013 at 23:17I am trying to establish a connection with the bootloader via USB using our prototype which has an STM32F407. I know the USB FS connection works because our firmware uses it to connect to the PC. Also, I can get the ...

ryanrj by Associate
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