Power on¶

Component	Operation	I2C command	Comment
Multiplexer	Set channel to 1	`writeI2C(112,1);`
Rheostats	Put C1 on control register at 1	`writeI2C(44,28,02);` `writeI2C(47,28,02);` `writeI2C(46,28,02);`
Rheostats	Set 3.3 V	`writeI2C(44,07,168);` `writeI2C(47,07,168);` `writeI2C(46,07,168);`
Register	Put all Output IO at 0	`writeI2C(32,1,0);`
Register	Configure IO to input or output	`writeI2C(32,3,194);`
Register	Power on	`writeI2C(32,1,1);`
Register	Check power on	`readI2C(32,0,1);`	Must return 129

Caution

For safety reason, power can be enable only if others powers are established. If one power is not at a good state, buffers will be disable to protect electronics and FPGA.

At power down, DAC need to be powered down with I2C command