Uzebox Forums

HELLO I THINK THAT IT IS POSSIBLE TO GET 9 BIT RESOLUTION ON TWO PORT PIN IN EFFECT THE PORT OF THE AVR GOT A HIGH LEVEL A LOW LEVEL AND A "TRISTATE" INPUT PIN IF THE TRISTATE IS FIXED WITH RESISTOR DIVIDER I THINK IT CAN BE POSSIBLE TO GET 3 LEVEL STATE FOR EACH PIN OF THE AVR TAKE A LOOK...

IF I DISABLE INTERRUPTS ALL THE PORT OUTPUT A TTL SIGNAL AT 5.76MHZ

LET ABOUT 10MHZ BY PIXEL

THIS CODE GIVE 2.88MHZ ON PORTD AND C at same time

DO
PORTC=0
NOP
PORTD=0
NOP
PORTC=255
NOP
PORTD=255
LOOP

IF THE NOP ARE not set then it don t work

WELL
I WAS THINKING OF ADDING 4 BIT SHIFT REGISTER for made 8 bit portc and 4 bit spi
in another topic i explain that the port b of atmega644 is double speed than portc
may be it is better to user portb for made 16bit color

HELLO I FOUND THAT THERE IS A DIFFERENCE SPEED BETWEEN PORTC AND PORT B atmega644p voltage vcc 5v25 (under dont start) current consumption >100ma first of all clock at 40mhz with external clock fuze 010000 program in basic (may be in asm it is faster) do portc=0 portc=255 loop speed mesured at oscil...

HELLO I am new on uzebox and not ready to go so excuse if i tell wrongs things does 12 or 11 bit color possible IF A SERIAL REGISTER is ADDEED ON THE SPI AND IS USED WITH SPI I MEAN DOES THE CPU AS TIME TO READ A COLOR AND SEND IT TO PORTX AND SEN SOME BIT VIA SPI THE PORTX AS A TIME TO REACT DOES D...

hi

for the moment i think that the uzebox is better because there is maximun options particularly the sd card and possibility of video demo

i will try uzebox first
thank you

ok
thank you jubatian i will try a atmega644 .

thx

HI
OF course there is several microcontroller with several prices lol for me it seems that the atsam4S16B is the best price performance.

what do you think about?

HI I AM new on this forum and also i don t know how to code game . but i code in basic for avr. and i am interested to create game. well i use atmega128A THAT WORK AT 40MHZ i don t know it it can be usefull for the UZEBOX and if it will work properly. how to do that simpli use a external oscillator ...