Ok so I am pretty green as far as AVR programming is concerned so bear with me.
I am doing a project with an ATmega32 MCU on a dev board which has 4 VCC pins. The project includes a GPS, SD card and a TFT display. Currently, the GPS and SD card take up 2 out of the 4 VCC pins for powering themselves up. I have two free left.
The display controller I have is the SSD1289:
I've connected it to my MCU, the VCC pin on the display took up one more VCC pin so I have one VCC left. I've been reading up and I've found that the LED_A and RD pins need to be connected to 3.3V, that is VCC. The LED_A pin should also have a resistor on the line connecting it to VCC.
First question - can someone confirm this is the way to connect it?
Second question - Is it possible to, for example, connect the VCC and RD pins of the display to the same VCC using a breadboard? So then I have one VCC left to connect to LED_A pin through a resistor? I don't know if multiple pins can share the same VCC. Will the voltage drop if I connect two pins to it? Is this safe to do?