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Published 20 hours ago • verified publisher icon kehribar

MISO pull up missing

Open r00tr4v3n opened this issue 11 years ago • 2 comments

There should be a pull up on the MISO pin in the device specific radiopinfunctions.c

set_bit(PORT, PIN_MISO); // MISO pull up

Was not able to communicate over SPI without it.

r00tr4v3n avatar Nov 30 '13 15:11 r00tr4v3n

Hi,

I'm using the library without any internal / external pull-ups for a long time.

Maybe your microcontroller - radio connection lines are long and you are needing a pull-up ...

Best, ihsan.

kehribar avatar Nov 30 '13 15:11 kehribar

I used a Arduino Nano. The signal looks fine on the oscilloscope but it should get a predefined state via pull up. Maybe this will help somebody for future reference. Thanks for your work! It is an awesome base for Arduino and ARM projects! Cheers, Martin

r00tr4v3n avatar Nov 30 '13 16:11 r00tr4v3n