Using SSP1 & use of MISO with it

Discussion created by lpcware Employee on Jun 15, 2016
Latest reply on Jun 15, 2016 by lpcware
Content originally posted in LPCWare by aamir ali on Sat Nov 03 02:44:46 MST 2012
I have an application where I have to send bytes at 12 Mhz freq to another module. So I selected SSP1 for this purpose. Now actually I need only SCLK & MOSI line. I don't need MISO line.

Earlier I have left float MISO, so module worked fine.

Now i haven't configure MISO line. & still my module is working fine with SCLK & MOSI. Data received is garbage.

1. Is it  right to do so. i.e not configure Miso. If not, what could be risk.
   Also can I use MISO pin alternate function like GPIO, as I don't need it know.  

2. Also if I configure MISO, should I pull it up, pull down or float.