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90 degrees phase difference signals

Posted on March 11, 2013 at 11:05I want to create 2 signals and they must have 90 degrees phase difference (on square wave). for example signals have 2 kHz freq. i set the timer 8 kHz and just changed the one of the outputs on each timer interrupt. ...

ADC preventing SysTick timer Interrupt (Why?)

Posted on March 10, 2013 at 17:56Hello, Once I initailize ADC in my program, it stop the SysTick timer Interrupt from working while ADC work correctly.I want ADC Interrutp to have higher priority than SysTick timer Interrupt.How do I set the priorit...

HMAC with DMA transfert

Posted on March 09, 2013 at 14:40The original post was too long to process during our migration. Please click on the attachment to read the original post.

JTAG unable to attach to CPU

Posted on March 08, 2013 at 22:24Hello ST community, first forum post... We're having problems with downloading EVAL example code into STM32F207ZC. I've soldered 144-pin chip to an adapterboard and followed schematics in AN3320 ''Getting started wit...

optifier by • Associate II
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bootload from a pc program

Posted on March 07, 2013 at 00:35Hi all i have to write an interface program for write to the stm32f40x's flash. I did a control system but users want to change some parameters on program but i can't give them the sources. I must write bootloader pr...

Documentation improvement suggestions

Posted on March 08, 2013 at 11:02In https://my.st.com/public/STe2ecommunities/mcu/Lists/cortex_mx_stm32/DispForm.aspx?ID=27542&RootFolder=https%3a%2f%2fmy%2est%2ecom%2fpublic%2fSTe2ecommunities%2fmcu%2fLists%2fcortex%5fmx%5fstm32%2fSTM32F40x%20%40%2...

problem with USART multi-processor mode

Posted on March 06, 2013 at 08:33Dear,    I met the problem when use the USART multiprocessor mode. In my USART communication application, even for one USART, there are 3 different addressses for different data packages. But STM32F4 only provide one...

xinjin by • Associate II
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