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Forum Posts

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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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-...

stm32H743 and usart2 problem

Posted on November 29, 2017 at 17:26Dear All,I have just ported the RTOS uKOS (http://www.ukos.ch) on the new stm32H743. Everything work fine at the exception of the usart2. I have strange situations with the interruptions, and as soon as I receive ...