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Missing ADC Codes on STM32F1 / ADC3

Posted on April 04, 2013 at 17:37Hi all,      When I supply 2 of my ADC inputs with 3V ramp/triangle/sine waves, it seems that values from 1024 - 1048 are reporting as 1023.  There is another smaller ''dead band'' from 1087 up to 1092.  Everything e...

diydsp by • Associate
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Fast floating point math

Posted on April 03, 2013 at 11:27Hello, i run in to a problem, where i need to do math with single precision floating point. it looks like if(...) condition, and printing floating point to uint16_t is very slow. so i have two questions: first, what ...

linas2 by • Associate II
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RAM duration : erased at reset ?

Posted on April 04, 2013 at 15:51Hello ST lovers,I have a very simple yet critical to my project question : is the RAM in the STM32F405 erased upon reset ? If yes, then is there any EEPROM I can use to store 32 bits of data that'll survive through r...

STM32F2xx FLASH erease program

Posted on April 04, 2013 at 14:43I have problem erease the write to the FLASH . I do as follow    FLASH_Unlock();    FLASH_EraseSector(FLASH_Sector_4, VoltageRange_3); Prair to that I check that all  section are unlock nWRP= 0xFFF. I use HSE and I ...

Barbie by • Associate II
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  • 3 replies
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USART interrupts when dma is used

Posted on April 04, 2013 at 16:05Hi all I've a little question: is it possible to get the normal usart interrupts, when I use dma to transfer the data? I want to add some LED (on at transmission), so it would be very usefull, if I can turn it on at ...

pa by • Associate II
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STM32F107 SEND RECEIVE USART

Posted on January 30, 2013 at 18:58Im trying to send and receive data trought de serial RS232, but I am not able to send and receive messages with the pins RX and TX connected simultaneously. If I turn the TX only cable I get messages on PC but conn...

esiqueira by • Associate II
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  • 6 replies
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STM32F0xx clock configuration tool

Posted on July 29, 2012 at 14:17Hi all.AN4055 states that: ''The configuration tool is implemented in the �STM32F0xx_Clock_Configuration_VX.Y.Z.xls� file which is supplied with the STM32F0xx Standard Peripherals Library and can be downloaded from ww...

Help with I2S in STM32F4 Discovery

Posted on March 30, 2013 at 22:39Hello guys, I have problems trying to interfacing the stm32f4 with the CS43L22 by the I2S protocol. I was able to set up and send the configurations words by I2C and see the handshaking between those with my oscillos...

STM32F2 USB HS-Core VCP Win7 not working

Posted on January 21, 2013 at 04:00Dear All.I use STM32F205RCT6 and want to use VCP of USB HS-Core (PB13-15) with embedded PHY.I wanted to use FS-Core (PA11-12) because I did and succeeded already.But 64pin device doesn't include FS-Core.I use VCP p...

sw2sugar by • Associate
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