STM32 MCUs Products

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stm32f207 use nss pin as gpio when using SPI

Posted on September 03, 2013 at 21:50Hi everyone, I have a problem with a stm32f207 device. I use the NSS pin of the SPI2 as a GPO. (The chip select to my SPI2 devices comes from an external I2C IO expander). NSS pin (I4) seems to be working ok as ...

oe2 by Associate III
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Help with DMA1 and DMA2

Posted on September 03, 2013 at 18:31Hello guys, I have a problem with DMA2, while using DMA1 in the STM32F407VGT6The thing is I�m doing a program which reproduce MP3 music while it reads the data from an SD.I use the DMA1 Stream 7 for sending data ...

USART1 stop transmit suddenly

Posted on September 03, 2013 at 18:27Hi,I'm using STM32F103VE. USART1(9600,n,8,1) for sending data in interrupt  of TIM2.TIM2 occurs every 10ms. In TIM2 interrupt routine I call a function to transfer data via USART1:  USART_SendData(USART1, x);   (...

hoaptadv by Associate II
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GUI designer

Posted on September 03, 2013 at 17:29Hello, I search a GUI designer program( like VisualTFT) to design the gui for stm32f4discovery with touch screen display. I need a program what is generate the .c and .h files which control the display and the to...

totti001 by Associate II
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EMC Problem with STM32L151

Posted on September 03, 2013 at 16:47I appreciate any help ThanksA tracker with STM32L151 began to have a bug even with the watchdog enabled. The crash always occurs when the modem gsm this broadcast.We created a test version that only flashing a gs...

edsoncan by Associate
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SDIO std library Problem with Writing & reading data

Posted on September 02, 2013 at 07:04Hi, While every thing is ok response is proper but when i use write data polling or DMA mode my sysem is there in polling or DMA routine, but i am getting response of my command 24 perfect dut transmitting data g...

amol by Associate II
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Where to start on STM32?

Posted on September 02, 2013 at 12:09Hi,Long time programmer for 8-bit mcus and just wanted to move my skills to STM32. Looked at some datasheets and found them to be daunting for me.Any suggestions on how / how to start efficiently?

PDR_ON errata on LQFP100 for STM32F4

Posted on August 19, 2013 at 23:21A warning so no one else will get caught by this.  On the original STM32F4 design docs pin 99 on LQFP100 is shown as RFU or PDR_ON, and diagrams show it can be connected to Vdd.  The gotcha is this only applies to r...