Altera DE1-SoC - Controlling G-sensor via I2 C

DE1-SoC User Manual
93
www.terasic.com
March 14, 2014
( ( uint32_t )( ALT_GPIO1_EXT_PORTA_ADDR ) &
( uint32_t )( HW_REGS_MASK ) ) ) );
 Demonstration Source Code
 Build tool: Altera SoC EDS V13.1
 Project directory: \Demonstration\SoC\hps_gpio
 Binary file: hps_gpio
 Build command: make ('make clean' to remove all temporal files)
 Execute command: ./hps_gpio
 Demonstration Setup
 Connect a USB cable to the USB-to-UART connector (J4) on the DE1-SoC board and
the host PC.
 Copy the executable file "hps_gpio" into the microSD card under the "/home/root"
folder in Linux.
 Insert the booting micro SD card into the DE1-SoC board.
 Power on the DE1-SoC board.
 Launch PuTTY and establish connection to the UART port of Putty. Type "root" to
login Altera Yocto Linux.
 Type "./hps_gpio " in the UART terminal of PuTTY to start the program.
 HPS_LED will flash twice and users can control the user LED with push-button.
 Press HPS_KEY to light up HPS_LED.
 Press "CTRL + C" to terminate the application.
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This demonstration shows how to control the G-sensor by accessing its registers through the built-in
I2C kernel driver in Altera Soc Yocto Powered Embedded Linux.
 Function Block Diagram
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