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Topic: Burning Code in a DIY Arduino (Read 2 times) previous topic - next topic

Vincent19

So, is that means it is better not to connect any input/output device at the MOSI, MISO and SCK pins ? Are you programming using USBasp/usbtiny right ? If you are using ftdi programmer, then it will only involve Tx and Rx

Thanks

Nick Gammon

True, but then you have to make sure you don't have anything connected to Tx/Rx for best results.

Quote
So, is that means it is better not to connect any input/output device at the MOSI, MISO and SCK pins ?


It depends on the device a bit. SPI devices are designed for this sort of thing, you just don't activate them through their slave select pin.

Vincent19

I still dont get for the explanation on SPI pins

Nick Gammon


Vincent19

Thanks alot ! Great websites you have there !

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