hi all
I want to connect a 7" tft lcd module to mega 2560 but I know nothing about wiring configuration and the usage of module pins . please help me in wiring .
There was no manuel or something. I dont even know the Productnumber of the Display
The picture is the Display what i need to wire.
Thanks for your time 
Link to the Product
I own the same tft screen, it works with mega shield 2.2 ok, but i need to know if its really needed the usage of that shield to make it work.
The Mega Shield just add some extra chips (HC541) five of em. AFAIK theese are octal buffers, dont know if they are really needed.
Cheers
You own a "mega shield 2.2". You can follow the copper traces on the pcb and draw the schematic.
You might even be able to download the official schematic for your actual 2.2 shield.
Or compare your pcb with a 2.0 schematic
Why do you think they used HC541 buffers?
They should use LVC541 buffers (which are input voltage tolerant).
The SSD1963 is not input voltage tolerant.
You can omit the xx541 buffers.
It will probably work for a few hours or even days with 5V GPIO.
When the SSD1963 fails, you can buy a new display (every few hours or days).
David.
Ouch thats bad, thanks for advice, ill have to order a couple of those lvc541...
In my mega shield 2.2 there are HC541, I m just reading the chip name 
with an augment lens.
Tyvm.
From the 74HC541 datasheet:
The 74HC541; 74HCT541 is an octal non-inverting buffer/line driver with 3-state outputs.
The device features two output enables (OE1 and OE2). A HIGH on OEn causes the
outputs to assume a high-impedance OFF-state. Inputs include clamp diodes that enable
the use of current limiting resistors to interface inputs to voltages in excess of VCC.
How many boards have current limiting resistors?
From the 74HC245 datasheet:
The 74HC245; 74HCT245 is an octal transceiver featuring non-inverting 3-state bus
compatible outputs in both send and receive directions. The 74HC245; 74HCT245
features an output enable input (OE) for easy cascading and a send/receive input (DIR)
for direction control. OE controls the outputs so that the buses are effectively isolated.
Other buffer chips are used but those two types are common.
I don't know about you. The 40-pin Adapter Shields for Mega are cheap and plentiful. I would prefer to buy a reliable assembled adapter than to hand solder chips on protoboard.
Quite honestly the chips and components will cost more than a ready made Adapter and you have not wasted hour(s) soldering.
David.
