"PropScope820"-project with driver for ADC0820-chip and small keyboard on i2c w
Christof Eb.
Posts: 1,214
Perhaps other guys are working on a stand-alone oszilloscope too?
Here is the current status of my project:
A Oscilloscope with the chip ADC0820 which is half flash-type and has build-in sample and hold and is not very expensive.
The scope (the driver) has the ability of software pretriggering with a ringbuffer.
The driver for adc0820 is capable of a sample rate of 533kHz. I wonder if there are possibilities to make it faster. Perhaps via splitting it for two cogs.
Are there ideas to do this?
There is a small keyboard attached on i2c with pcf8574 to set the trigger level and the display time width.
I want to include a second channel with a second adc0820 later.
I have heard of the possibility to capture/display repeated signals with higher frequencies and "fill in" samples that are sampled with a slight time shift. It would be nice, to include such a feature.
Many thanks to all, who have given me input.
Of course it would be nice to hear from other projects heading in similar directions.
Christof
Here is the current status of my project:
A Oscilloscope with the chip ADC0820 which is half flash-type and has build-in sample and hold and is not very expensive.
The scope (the driver) has the ability of software pretriggering with a ringbuffer.
The driver for adc0820 is capable of a sample rate of 533kHz. I wonder if there are possibilities to make it faster. Perhaps via splitting it for two cogs.
Are there ideas to do this?
There is a small keyboard attached on i2c with pcf8574 to set the trigger level and the display time width.
I want to include a second channel with a second adc0820 later.
I have heard of the possibility to capture/display repeated signals with higher frequencies and "fill in" samples that are sampled with a slight time shift. It would be nice, to include such a feature.
Many thanks to all, who have given me input.
Of course it would be nice to hear from other projects heading in similar directions.
Christof
