zeus_threat
Member
I am working on a digitally controlled XR2206 based signal generator. The core oscillator schematic is attached. It can do sine, square, sawtooth,triangle,duty contolled square wave,FM,AM and voltage contolled frequency sweep the kits don't give you all this, only the basics.
The plan for the time being is to control the XR2206 using a 16F628A and relays plus leds for indication. As for the frequency, duty and amplitude control i will use potentiometers for the time being. If program memory is available to control the generator using USART from a pc application.
Am also considering a more complex approach afterwards using the following:
16F877A pic
USART- PC application to control pic
LCD to display information
CCP as frequency counter
Digital potentiometer for amplitude control
ADC to monitor output amplitude
DAC to set frequency and duty values
I'll start with a project board version with a 16F628A and see where i end up. I am right now building the algorithm for the pic control and testing it on my 16F628A dev board before integrating both together
The plan for the time being is to control the XR2206 using a 16F628A and relays plus leds for indication. As for the frequency, duty and amplitude control i will use potentiometers for the time being. If program memory is available to control the generator using USART from a pc application.
Am also considering a more complex approach afterwards using the following:
16F877A pic
USART- PC application to control pic
LCD to display information
CCP as frequency counter
Digital potentiometer for amplitude control
ADC to monitor output amplitude
DAC to set frequency and duty values
I'll start with a project board version with a 16F628A and see where i end up. I am right now building the algorithm for the pic control and testing it on my 16F628A dev board before integrating both together