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Problem while enabling I2C & FSMC in STM32F103ZE

Question asked by Gaurav on Jun 29, 2015
Latest reply on Apr 3, 2016 by sajad.sajad
Hi,

I am using STM32F103ZE microcontroller. In which  communicating with external SRAM with FSMC . It is working fine.

1)Now I am trying to communicate with an IC which is connected through I2C1 (PB6 : SCL , PB7 : SDA,). But this communication is not happening while using external RAM through FSMC.
2)But I2C is working with internal RAM, and communication with that IC is happening, there is no issue.

Then I tried I2C communication with External RAM after disabling FSMC_NADV in register AFIO_MAPR2 (By setting 10th bit in AFIO_MAPR2 register). But still same problem is persisting.

Anyone have idea about it??

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