As stated in the previous section, the default GUI configuration has the Auto Read functionality turned off and instead manually reads the registers using the READ REGISTER and READ ALL REGISTERS buttons. The READ REGISTER button reads only the selected register. The READ ALL REGISTERS button reads all available ADS1x48 registers. The advantage of manually reading the register contents is reduced USB communication between the ADS1x48EVM and the GUI.

The registers can be read automatically from the ADS1x48 at a variety of intervals from once per second to as fast as possible. As shown in Figure 4-12, the intervals can be reviewed and selected using the Auto Read drop-down menu. The READ REGISTER and READ ALL REGISTER button options are only enabled when the Auto Read selection is turned off.

Figure 4-12 Auto Read Options