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The first set of commands covered in this guide are the "Device" commands. These commands are not related to any particular protocol or feature, rather they configure general functionality of the host adapter.
This section of the User Guide is presented in the format of a "Programmer's Guide" to demonstrate how the commands can be used to achieve certain functionality. A full "Language Reference" format of the commands can be found here.
Functions related to the communication, setting the host adapter mode of operation, identifying the device, and resting the device can all be accomplished using the Device commands.
All Device commands begin with +.
There are a few commands that aid in the communication between the host adapter and the computer and can improve the clarity of the user experience by tailoring it to the current test session needs.
One of the most important Device commands is the +MODE command, which is used to configure the operating mode of the host adapter. The supported operating modes are IO, SPI, I2C, 1-WIRE, SWI, and UART.
There are three commands which aid in device management. These are particularly useful when working with multiple host adapters and when performing device firmware updates.
It's possible to programmatically reset the device, similar to unplugging/plugging the device from the USB port. This returns all settings to their defaults and also causes the USB connection to drop and enumerate again. Note that the serial port on the host computer will need to be re-opened after the reset events.
The technical details of each of the commands, their parameters, and responses can be found in the ASCII Command Set Reference Guide: