TFT 3.2 inch Shield problem

Projects Programming
1

Hi all

I have a project with

1- ENC28J60 Ethernet Module
2- RC522 RFID
3- 3.2" TFT LCD Touch + TFT 3.2 inch Shield (tft ILI9341_16)
4- Arduino mega

I test the ENC28J60 Ethernet Card and the RC522 RFID with shared MISO/MOSI/SCK

for the ENC28J60 SS pin= A15
and for RC522 SS pin=9

After uploading the cod all work perfect

but when I connect the TFT 3.2 inch Shield
no mater the screen connected or not
the RC522 RFID and ENC28J60 Ethernet stop working

if i i takeout the TFT 3.2 inch Shield
the RC522 RFID and ENC28J60 Ethernet Back to work

in arduino mega the

MISO Pin 50
MOSI Pin 51
SCK Pin 52

and the Shield already connected to those pins
the problem with the SCK when i connect the Shield i can't shared the SCK pin with author devices

when i connect the TFT 3.2 inch Shield and the screen using UTFT library without RC522 and ENC28J60
connected to arduino
the tft work fine

so how can solving the problem...

2

What do you mean by "when i connect the Shield i can't shared the SCK pin with author devices"? The pin is physically blocked and therefore can't be attached? What indications are you getting/expecting?

3

You can connect several slaves to an Arduino using the SPI bus. To do so, all the slaves share the same MISO, MOSI and SCK, and each one has its own SS (or sometimes called CS). Just remember that all SS must be set to HIGH except the one of the slave currently communicating with the master. You can set them all to HIGH in the setup.


(image from here)

4

lesept:
You can connect several slaves to an Arduino using the SPI bus.

Yes i do that ..
The ENC28J60 Ethernet card and the RC522 RFID work together perfectly
With deferent SS pin
But when i connect the TFT Shield on the mega board nothing work
i dont know whay

Mega board pins
MISO Pin 50
MOSI Pin 51
SCK Pin 52
CS Pin 53

The Shield hardware connected to these pins
For rfid i use pin 8 like CS
And for Ethernet card A15 pin

So what can i do

5

Read the website I got the image from, maybe this will help you