SPI hardware Design consideration
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2016-10-01 1:43 AM
Posted on October 01, 2016 at 10:43
Hello
In my board there are two uc that are connecting through SPI .Is it necessary to have pullup resistor for spi pins ?
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2016-10-01 10:02 PM
Posted on October 02, 2016 at 07:02
It is certainly advisable on at least the Chip Select / Slave Select line or lines.
That said, you can generally configure STM32 I/O lines for internal pullup/pulldown.