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Forum Posts

emWin GUIBuilder not working for STM32F746 Discovery?

Posted on January 16, 2018 at 17:38I am using the STemWin GUIBuilder for STM32F429 Discovery and this works fine. Trying the same procedure with the STM32F746 Discovery causes partial distortion on the screen. For example Slider and Buttons have a l...

''Can not connect to target'' using ST link utility

Posted on March 22, 2017 at 13:22'Can not connect to target'error message popup appears,when i am trying connect target.I am using St link utility.can some one help me out.I am using STM32l017K8 Microcontroller.and also i am using SWD interface to p...

reading I/O register values with command line GDB

Posted on December 18, 2017 at 16:54Recently I found that STM32CubeMX support Makefile as well as SW4STM32. So far I worked with only the SW4STM32, but now I'm happy to move to the command line development with GCC, GNU make , stlink, and GDB. After...

M. Jeong by Associate II
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timer prescaler triggers on first rising edge

Posted on January 22, 2018 at 10:28 Hey everyone, I'm using a stm32f722ze I've got a small issue considering the prescaler on the timers. I'm using this to trigger an input capture and DMA request after 8 clock cycles, although the prescaler se...

con3 by Senior
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  • 8 replies
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unable to update Options bytes

Posted on October 27, 2017 at 23:32Hi All, I am trying reprogram my board- MCU-STM32F405RGT6, programmer/debugger: ST-Link/V2. It says read protection activated (when I check my options byte REAd protection is set to level 1 ). I try to change the r...

Reema O by Associate II
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  • 9 replies
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Resolved! STM32F303ZE Why is my SPI3 module transmitting 16-bits

Posted on January 22, 2018 at 16:44I have my SPI3 module configured as a master.  I want it to transmit 8-bit words.  Here is my setup as read from the chip while its executing.  No matter what I do each time I write to SPI3->DR it transmits 16-bits...

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a b by Associate
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  • 4 replies
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how can i implement 3 I2C buses on a STM32 LO family. Although it has 3 these are split across AF6 and AF7 alternative pin mapping ?

Posted on January 22, 2018 at 14:39how can i implement 3 I2C buses on a STM32 LO family.looking at the data sheet for pin mapping this are mapped in to PB & PA buseswith alternative Mode does not allow all 3 to be expossed, as these are spread acros...

STEVAL-STLKT01V1 Sensor Tile connect to I2C device

Posted on January 21, 2018 at 21:54I have a STEVAL-STLKT01V1 Sensor Tile. I want to add additional sensing capabilities and was wondering how to add a peripheral that communicates over I2C? Are there any firmware examples of how to do this?#stm32l4-...