![]() ![]() Both output information on their serial ports that can be viewed. Once the Arduino application is loaded messages will start to be exchanged between the two devices. To run, load the MULTOS application first (in Command Mode) using loader.bat then switch to Embedded mode. This demonstrates using high level I2C calls to talk to an Arduino with the Arduino as the master. The MULTOS application can be run through Eclipse or from the batch file build_run.bat. The Vcc out connection from the MULTOS Development board is 3.3V. Please note: Depending on the Arduino model used, it may need to be powered separately. Connect any Arduino GND pin to any Dev.The Arduino SCL pin needs to be connected to pin G8 on the Development Board.It compares the values to those originally sent and if they match, 0x9000 is returned, if they don’t match 0x9001 is returned. In this application, a MULTOS application (running in command mode) writes random data to an Arduino slave over I2C, the Arduino copies the received data to different registers which MULTOS then reads back. Care must be taken, however, as this setting applies to the whole chip and all embedded applications running on it. It is useful to put the chip into this mode to save energy when the device is waiting for an event to happen (the chip’s timers are stopped in this mode, so the wake up events must be related to I/O). ![]() Note: The code for the tutorial includes commented out lines for switching the chip in and out of embedded ultra low power mode. The LED will blink (Timed Blink application) and when the white push button on the Development Board is pressed, the messages “Hello World” and “Hello again!” will be sent over the serial port. Once loaded, switch to Embedded Mode – the application (and Timed Blink if still loaded) will start to run as soon as the power is switched back on.
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