Connecting two SPI devices - Raspberry Pi Forums


hi guys,

i'm trying adafruit pitft , retropie gpio adapter work on pi. i've connected pitft directly onto pi , used second header connect retropie. both devices work fine when used separatly; however, when used together, i'm no longer getting input retropie. (except onboard button, connected different line)
kinda hoping i'd plug these guys in , well. *sigh* maybe didn't cross fingers hard enough.
anyways, i'm guessing problem pitft , retropie sharing pin #19 (mosi/gpio10) , pin #23 (sclk/gpio11).
leaves me searching way these guys work together. alas, gpio stuff goes on head rare elegance, i'd appreciate help.
have one,

old man ivan

you need have each device on different spi0_ce0 or spi0_ce1 (gpio8/7). these 'chip enable' or device select lines. driving software have configured address device 0 or 1.miso, misi , sclk shared.


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