![]() I did not look too close at A0… A6, they may be adress bits for internal registers. This probably works as long as everything goes as planned (how does your MAX chip get it’s adress?), but still, I have no idea how robust these chips are and the series resistor from preventing shorts from being catastrophic is a small price to pay.Įre is no address, it is a chip select chip on an SPI bus. I assume (but that’s a lot of assumptions combined with above) that you want to connect multipe SDO’s together and trust on the adressing to keep short circuits from happening. Putting an extra 0.2ct serie resistor is often enough to even be safe in such situations.Īccording to the datasheet SDO is not (always) an output but has High-Z properties, which makes it more like an Tri-State pin. I never like the idea of hardware letting out the magic smoke and getting damaged because of a silly software mistake. ![]() Electrical rule check is in Eeschema and has to do Input and output pins etc.īut I did not see an example of connecting multiple of these things.Īnother thing to consider are bit faults on your microcontroller or simply faulty written software. I also think you are mixing up DRC with ERC.ĭesign rule check is in Pcbnew, and handles track widths, clearances between tracks and that sort of thing. Usually the SDO is connected to te SDI of the next chip. My crystal bal is a bit foggy and without schematic I can not see how you connected things.
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