Content originally posted in LPCWare by siangming on Wed Mar 04 17:03:32 MST 2015
hi all,
I am trying to use the spi on this mcu, lpc11u37, as a master spi and connect the mcu to another single slave spi device only.
After reading the reference manual, I still do not understand if the slave select pin is driven automatically to the active state whenever there is a data waiting to send out in the FIFO buffer ....
or do I have to manually drive it to the active state before the data get sent out through the MOSI. If so, do I also have to manually drive it back to inactive state after the data transmission is done?
Thank you.