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greenlantern01's avatar
greenlantern01
Icon for Occasional Contributor rankOccasional Contributor
5 days ago

LTC Connector DE10-Standard FPGA

I am trying to access the I2C bus on the LTC connector on the DE10 Standard FPGA board. 

I have enabled the i2c controllers on the HPS.

How do I now gain access to the i2c2 pins that are connected to the ltc connector from the HPS? 

I was able to communicate to the g-sensor that shares the same bus with the ltc connector, but I need to access the LTC  connector to communicate with a separate board.

 

 

 

 

 

 

I see that there is a TS3A5018 switch. Am I required to set the HPS_LTC_GPIO to low to switch communication from spi to i2c? 

Kindly help. 

Configuration
Programmable Logic Device

1 Reply

  • KianHinT_altera's avatar
    KianHinT_altera
    Icon for Frequent Contributor rankFrequent Contributor
    2 days ago

    Hi greenlantern01​ ,

    Judging from the schematic , the signals on the LTC connector are multiplexed between SPI and I2C through the TS3A5018 switch which is controlled by the HPS_LTC_GPIO , you will need to set it to Low to switch to I2C2 pins

     

    Thanks

    Regards

    Kian