Tranfering float via SPI beween two arduinos

Projects Networking, Protocols, and Devices
5

Thanks for the replies guys. I appreciate the help.

Hi Rob, I increased the delay to 1millisecond, and I still get the same results as before.

Hi John, I am quite new to coding, but what I thought I was telling the master to do is as follows please help me understand if I am mistaken (all constructive criticism is welcome):

  1. master sets slave select (SS) Low--> this allows communication with the slave

  2. call function transferAndWait ('a') --> sends command 'a' receives 0

  3. call function transferAndWait ('b') --> sends command 'b' receives 'b[0]' and stores it in data.b[0] on master

  4. call function transferAndWait ('c') --> sends command 'c' receives 'b[1]' and stores it in data.b[1] on master

  5. call function transferAndWait ('d') --> sends command 'c' receives 'b[2]' and stores it in data.b[2] on master

  6. call function transferAndWait (0) --> sends command 0 receives 'b[3]' and stores it in data.b[3] on master

  7. master sets slave select High --> this ends communication with the slave

  8. print results stored in data.f along with each byte of data.b[4]

Thanks,
Matt