STM32 MCUs products

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New STM32 MicroXplorer v2.0

Posted on February 20, 2012 at 00:24The new STM32 MicroXplorer v2.0 is now ready for download, per an automated email that I received from ST.  The web page says v1.1, but after downloading, the contents says v2.0 and I verified after I installed it...

sbmeirow by Associate II
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Stm3240g Board Firmware - Port Problem / Question

Posted on April 25, 2012 at 10:39I am new to and using the Stm3240g Board Firmware. I have a problem with the Ports though. With the Usb and SDCard enabled (nothing else attached),   I can Enable Port PA and PB.  But when I enable Port PE - then P...

jlchoobs by Associate II
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STM3220G-EVAL ADC noise comes from USB OTG PHY

Posted on April 25, 2012 at 09:01Hello,I have been doing some measurements with the STM3220G eval board using the piece of software at : ./STM32F2xx_StdPeriph_Lib_V1.0.0\Project\STM32F2xx_StdPeriph_Examples\ADC\ADC3_DMAThe ADC reading of the potenti...

EEPROM Emulation

Posted on April 22, 2012 at 00:24The EEPROM emulation demo uses Flash pages 2 and 3 (16 Kbyte pages).  Flash pages 0 and 1 are also 16 Kbyte pages. WHat happens when your program is longer than 32 K?  Is the linker smart enough to skip Flash pages 2...

jihlein by Associate II
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Problem with USATT, cant receive anything from X-CTU

Posted on April 24, 2012 at 15:57Recently migrate from 8bit MCU to 32bit STM32, I like the FW library, but there is a learning curve required. So I am trying to do a printf with USART, after i compiled the program, i cant receive anything. At this p...

DMA based SPI communication with NSS

Posted on March 06, 2012 at 13:40Hello, while studying the STM32F4xx datasheet i found the following passage:25.3.1: ''The NSS signal is driven low when the master starts the communication and is kept low until the SPI is disabled.''  This leads me ...

mstuehn by Associate
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STM3210C - Clock Frequency Irregularites

Posted on April 16, 2012 at 22:16Hi all, I am currently using the STM3210C evaluation board and have discovered something which is puzzling, and has to do with the clock frequencies.  I am currently using Atollic to program the board and have initia...

System software reset, effects and privileges

Posted on April 21, 2012 at 16:32Hi all, I'm building a custom bootloader and need to provide a way to write protect/unprotect the memory. In order to commit the change, a system reset is required, which I sought to be a software-triggered reset. Fi...

zavaboss by Associate
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PWM input capture

Posted on April 23, 2012 at 21:16It looks to me like the hardware for Tim4 will support PWM input capture on channel 3/4,but when I look at the source code for the standard peripheral library  (V3.5.0) the procedureTIM_PWMIConfig appears to be hardw...