Can't make PSOC1 DAC to work | Cypress Semiconductor
Can't make PSOC1 DAC to work
thanks to the community I've solved many problems but this one made me desperate.
My project is controlling speed of a low power brushed dc motor by controlling openning of a mosfet transistor. I prototyped it with development kit-001 and psoc3 but due to the cost I have to move to psoc1.
None of my trial to start DAC working succeeded. I have gone through lots of appnotes and datasheets but still no luck. My project has to go to the PCB stage but I have no luck with choosing chip - PSOC3 is expensive but PSOC1 is not working.
Cypress support is no help for me - they tend to reply once per 10 days with most ideas not relative to my project. I get more surveys from them then help.
Lately I followed psoc1 example#3 "ADC to UART with DAC" just to make sure I do everithing right but again DAC not working. I think, I missed something because compiled example is working.
Attached project is my trial to follow the examle with the same hardware settings and copied main.c - and still doesn't work. I can't understand that.
Any help is greatly appreciated,
and another questions: any ideas what the output impedance of the dac? do I have to buffer it with opamp in order to control gate of a mosfet?