STM32 MCUs products

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New possibilities for the ultra-low power segment!

STM32U0 is the first Cortex-M0+ with a static consumption of only 160 nA in standby mode with RTC (Real-Time Clock) and 16 nA in shutdown. It also achieves 118 points in CoreMark and targets SESIP level 3 and PSA level 1 focusing on firmware code pro...


Problem with STM32F105VC using 8MHz crystal

Posted on July 15, 2011 at 19:58Hi,I have spent the better part of the day trying to get code that run perfectly on an STM32F107VC using a 25MHz crystal to run on an STM32F105VC with an 8 MHz crystal. We are using v3.5.0 of the library from ST.Chang...

STM32 GPIO Configuration utility????

Posted on August 04, 2011 at 12:41Hello there...My aim is, I need to be able to configure ports of stm32. Is there an utility/software in order to configure GPIO of it?Any help, feedback will be so helpful!..

STM3220G-EVAL I2C demo software

Posted on August 06, 2011 at 01:08I am trying to get the EEPROM I2C demo for the STM3220G-EVAL kit to work.  I am using the IAR toolset.  It compiles without error, and loads onto the demo board and runs to the point of displaying ''Communication Er...

gusg by Associate
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STM32 True Studio Issue

Posted on August 05, 2011 at 17:47I have been working with true studio for a while. I have mostly done small projects that do not require a large amount of include files. Currently however i have been working on a larger project (an MP3 player to be...


Posted on July 29, 2011 at 23:24I would like to know if the ST-LINK V2 allow to set a breakpoint while de code is running. I'm using EWARM 6.21.

Asantos by Senior
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stack use monitor

Posted on August 03, 2011 at 15:06I'd like to add stack usage monitoring to my application. I can't afford the overhead of stack checking on every function call, so I was considering adding a routine that runs periodically to monitor the stack high-...

RTCK,DBGREQ,DBGACK needs mandatory pulldown to ground?

Posted on July 30, 2011 at 12:46Hi, I am using a STM32F100CB part on my target. I have not pulled RTCK, DBGRQ and DBGACK down with a 10K as recommended by the App note AN2586. Presently I am not able to get Ulink2 to communicate with my target. I ge...

gopi by Associate
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Hard fault with no obvious reason why

Posted on August 03, 2011 at 18:50I'm running into a hard fault situation and I'm not sure why this is happening.From what I'm seeing in the fault status registers I'm getting...Usage fault status: INVSTATE is setHard fault status : FORCED is setDeb...

shotaro by Associate II
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DEV_TARGET_CMD_ERR on breakpoints (Rowley Crossworks)

Posted on May 30, 2011 at 01:57I've just gotten some STM32VLDiscovery boards and am attempting to program them via Rowley Crossworks.  I've got the STLink connection working and can download and run programs and view registers, etc.  But if I try to...

kk6gm by Associate II
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