I'm trying to send/receive bytes from GM862-GPS to AtMega88 through SPI-bus.
I have connected GM862 to Mega88 as follows:
So I import, create and initialize the bus:
import SPI SPIbus=SPI.new(3,4,5) SPIbus.init(0,0) SPIbus.sendbyte(0xAC)
I don't have SS-signal wired between GM and Mega. Does AtMega88 require SS-signal when enabling SPI-bus as slave? I cannot wire the SS-signal anymore on my proto board (well I can but it's pretty difficult). I also tried grounding the SS-pin on Mega88. Is there any other solution than wiring the SS?
I can successfully set pin values with the GPIO build-in module etc...