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FT232 chip will convert your usb data to serial data(RS232). I dont think that will be do a lot of change in your program.
It will just change your hardware schematic a bit.
And i dont think that will affect your transfer data speed.
How about use real usb controller for high speed data...
lcd backlight anode cathode
Refers To HD44780 datasheet. I assume that you use Hitachi chips for lcd text controller right?
Datasheet link:
https://www.sparkfun.com/datasheets/LCD/HD44780.pdf
please look at the init time and your microcontroller datasheet for LCD timing.
Happy Learning and...
i think you should to be more specific in defining your project.
What is the problem? ADC? or LCD?i would like to suggest you C Programming Language for complex project.It's quite hard to manage assembly language for large project if you aren't used to it.
initialization microcontroller
When you switch on the microcontroller, all of the microcontroller's will go to default setting, and then PC(program counter) will go to address #000000h to read the program, notice that interrupt vector table for reset is the same address(#000000h). So if you...
I have search VGA specification and began to understand how VGA works.
What i can't get is the voltage specification for the R,G,and B Channel. It's analog channel so what is the maximum value of that channel... i want to use R2R ladder with volt divider so i must know the maximum voltage to...
is link aggregation is same with etherchannel? I'm using cisco device and my instructor show me some demo about etherchannel and it seems about same with your description.
Thanks for the attention, i'm interrested in this one
Is it really needed to use cat6? i prefer cat5e because i hear the cat6 is preferable for Gigabit ethernet. if you only need an transfer data not a streaming application i prefer using cat5e.
the seven osi layer is a reference to design a network. But nowadays it usually used to understand the basic of the network design and how to troubleshooting. Nowadays we usually use tcp/ip layer. It's more practical than osi layer i quess.
Correct me if i'm wrong. Thanks
802.1q trunking is used when you using switch as vlan. 802.1q is the encapsulation for the trunking if i'm not wrong. Normally you can create vlan in switch(you have one default vlan1 for the management and it can't be deleted) after you create vlan, each vlan cannot communicate with each other...
C/C++ work with port
Sometimes i must give logic '1' to all the control and data bus to make it works, after give that logic you can use the port normaly. That's what i get when i'm using visual basic 6.0
C/C++ work with port
i'm using program called "userport" and it works fine. Make sure you have an admin priveledge because it's don't work if you don't have the priveledge.
The program's purpose is to open the user priveledge because window xp and windows 2000 already blocked all user to...
Hi all,
Lately i'm interested in wifi so i buy Airdrop-A(ATMEGA128) from www.edtp.com.I tried to interface it with spi and it works fine.I'm using visual basic 6 to connect to airdrop-A trough TCP. After PC initiate SYN and three way handshaking are done the Airdrop-A start to transmit data and...
No, i don't have a parallel resistor with xtal. Is it necessary? In ATMEGA128 datasheet it just tell that i should use about 20-22pF for the C1 and C2 with equal value.
Anyway thanks a lot for the help.... Please help me because i can't get a stable baudrate with this xtal.
Thanks a lot
I want to use 14,7456 MHz xtal for my avr. I'm using ATMEGA128 in 5 Volt, for the capacitor i'm using 22pF but it looks like it's unstable. I choose the highest rising time for the fusebit and CKOPT programed. May i know some additional information about how to using high frequency xtal for the...
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