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usart and rs 232 problem

Posted on April 21, 2013 at 12:35 I have a problem ... I want to connect to the terminal via RS 232 converter usb .. code seems to be reasonable but still something is wrong, I can not send anything to the terminal please help. #include ''stm32...

teacha by Associate II
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  • 5 replies
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stm32l152 Timer problem

Posted on April 22, 2013 at 11:40Hello,         I modify the demo code in STM32L1xx_StdPeriph_Lib_V1.2.0 --> TIM --> OCToggle. I reconfigured the TIM3_CH3 CCR3_Val to 40 to generate 200KHz square waveform. The output frequency measured is only 122Hz...

xinjin by Associate II
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USART3 RXNE IT - does not work

Posted on April 21, 2013 at 18:35 Hello, i need two USARTs working. First one USART1 (TX only) (Used for debugging purposes). Second one USART3 (TX/RX) Write function will send message to another device and waits for answer. After initializat...

ondrej by Associate II
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STM32F407 Standby issues

Posted on October 24, 2012 at 17:56Hi,We've managed to get our STM32F407 board to cycle in and out of standby using the RTC (once a second). We've also enabled the wake-up line to allow another low power micro to wake it up if needed.The problem we ...

pirow by Associate II
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  • 3 replies
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WAVE PLAYER AND RECORDER

Posted on April 16, 2013 at 21:57Hi My application depends on the discovery board design where I need to record  and play simultaneously. It seems when it record only the recorded wave  is clear with low noise  , but when playing  wave at same tim...

sami by Associate II
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  • 7 replies
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stm32f4 adc problem

Posted on April 21, 2013 at 14:58I would like to use stm32f4 to measure a battery voltage, like AA1.5v I connect the postive line to PC5 and gnd line to GND.I reference the example code on the Internet. But the code is stop at the while of adc flag....

ctc.ctc by Associate II
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f4discovery : weird gpio behavior

Posted on April 17, 2013 at 22:08Hello fellow f4/stm32 Users.I just bought a f4Discovery and i'm trying to get a grip on this great ''little'' piece of hardware.i'm trying to do very basic things just to get a grip by reimplementing a little piece o...

jejeva by Associate II
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  • 14 replies
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How to execute code from internal SRAM?

Posted on April 18, 2013 at 16:24Hi guys! I need some help. Im working with the STM32F4 discovery and CoIDE 1.7.1 and I want to know what should I do to indicate to CoIDE that I want to save some code in the internal SRAM memory, because I need that...

Ethernet problem

Posted on April 20, 2013 at 12:46Dear allI have made a custom board based on stm32f407IGT6 and used the same schematics from keil MBCSTM32F400 board, I have written this simple program for testing PING,I'm using keil toolsint main(void){         Sys...