Author Topic: Master SPI to nonSPI slave.  (Read 912 times)

0 Members and 1 Guest are viewing this topic.

Offline Kemme

  • Contributor
  • Posts: 25
  • Country: pl
Master SPI to nonSPI slave.
« on: May 31, 2015, 04:31:59 pm »
Hello all

I am trying to connect LPC1114 http://www.nxp.com/documents/user_manual/UM10398.pdf to this LCD https://www.maritex.com.pl/media/uploads/PRODUKTY_PDF/con/LGMTG12864R6PFLW.pdf

I decided to use serial interface of the LCD. Knowing the time characteristics:

I decided to use SPI interface on the LPC1114 (MOSI to SI, SCK to SCL and MISO and SS unconnected plus three other connections to control A0, RES and CS1). Anyway it is not working. I know that the LCD does not have SPI controller but in my opinion it should work.

Am I missing something? Do you think it is possible to control nonSPI slave with SPI master? Or maybe I messed something else up and that's why it is not working?
http://dot2pic.com - bitmap to data array online.
 

Offline zapta

  • Super Contributor
  • ***
  • Posts: 6004
  • Country: us
Re: Master SPI to nonSPI slave.
« Reply #1 on: May 31, 2015, 05:14:21 pm »
A logic analyzer such as the Saleae 8  (original or a clone from ebay) will allow you to see what's really going on there.
Drain the swamp.
 


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf