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holmatic / video_if_ql_vga

Video-to-VGA converter for Sinclair QL
GNU General Public License v3.0
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Mistake in voltage divider? #3

Open pluyckx opened 1 year ago

pluyckx commented 1 year ago

Hi,

My father and I are building the pcb, but we think there is a mistake in the voltage divider for connector J1. For each signal pin on J1 there is a pull down to GND and then a serie resistor to the microcontroller. We expected a serieresistor on the J1 connector and then a resistor to GND at the microcotroller pin, so the 5V signals of the J1 connector are converted to 3V3 for the microcontroller.

pluyckx commented 1 year ago

I've made the changes on a branch I made, if you want I can create a pull request: https://github.com/pluyckx/video_if_ql_vga/tree/fix/voltage_divider.