I have been trying to modulate a laser using an analogue signal from the DAC.
However I have been unsuccessful in getting the output of the DAC to change. I am using an Aztec X5 mini board and the smoothie ware code correctly initialises the DAC out pin. With the laser module turned off the pin is pulled up to 2.3v this agrees with the Documentation for the lpc chip. When the laser module is enabled the DAC output is set to 0V. I cannot change it from this value when issuing G1 move commands with an S value to set laser intensity.
From previous discussions on the IRC it appears to be a software issue, I was hoping someone could have a look at the code to see if the could spot the issue. I have the hardware set up to test it I just don't have the C++ knowledge to interpret the code.