On Thursday 10 June 2021 10:58:24 Ralph Stirling wrote: > The man page for hm2_rpspi indicates that multiple SPI > cards may be connected to a single pi4, using the spi_probe > parameter to which SPI port and chip enable line should > be used for each card. Has this been found to work well? > I have an application that needs two 7i90hd's, and I will > be making a small pcb to connect the 7i90hd's and the 4b. > My single 7i90/4b card is working fine. > So is mine, Ralph. But you must be planning on a much more complex machine than my 75 yo sheldon lathe. I have a boat load of gingerbread stuff on mine, and I still have at least 30 gpio's uncommitted. On one card.
Take care and stay well Ralph. Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis Genes Web page <http://geneslinuxbox.net:6309/gene> _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users