STM CircleOS forum / Strange Behaviour : I2C STM32 Evoprimer

softy · 2013-01-03 10:15:47

HI,
I am seeing strange behavior in the RIde7 IDE.I am running a pressure temperature sensor code in the RIde7 and when i go the the watch window in the debug mode and try to see the I2C1 register values and the GPIOB register values . all seems to be 0 rather I2C2 and GPIOA values are being shown up.
To brief about the system, Pressure temperature sensor is mounted on a board such that its SCL and SDA line goes to PB6/PB7 pin of STM32F103 .It is the I2C1 which is mapped to the Pb6/Pb7 (GPIOB) of the STM32.

Can some onle please share what I may be missing or is there some problem with the Ride that it is showing the wrong data for the right registers and vice versa.

Rgds,
Softy

yrt · 2013-01-04 07:24:57

A known issue is a conflict between I2C1 and FSMC controller inside the STM32 micontroller.

Take a look at this example :
http://www.stm32circle.com/projects/project.php?id=102

Generally, it would be efficient to search into the forum if your problem has been already solved before to post a new request.

Thanks

# 1 2013-01-03 10:15:47 Strange Behaviour : I2C STM32 Evoprimer

Strange Behaviour : I2C STM32 Evoprimer

# 2 2013-01-04 07:24:57 Strange Behaviour : I2C STM32 Evoprimer

Re: Strange Behaviour : I2C STM32 Evoprimer

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