Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
hi,
I designed RS485 bus by ADM3073 full duplex driver, but I have bad problem, when I use one slave and one master every things OK but when I use it for 2 slave I have problem and I don't receive data from one slave, my code is OK and I test my boards whitout RS485 driver and every things OK...
dora you are right we can not use from that code,
my font store is different to your saving, you save 2 bytes for a pixel means you save color of your characters too, I don't store my fonts like this, look at this:
flash unsigned char calibri20[]=
{
0x00, /* Proportional font */
0x21, /* Font...
hello,
I use 800*480 7inch tft lcd,
I read page by page from AT45 (528 bytes),i read a page for a character and write it on lcd, how can i write code for read all of my text characters from memory. i think we can not,
now about speed, for example when i display calibri20 font with 20 character...
thanks dora,
I don't have any problem for store fonts and icons on AT45 and display them on tft LCD, my problem is speed, in display text you need for every character have a communication by AT45 and read data from it, this is slower than when you store fonts on internal flash, another problem...
hi
I'm use ATxmega128a1 and at45db161 for store my icons, I 'm design my own HMI by this microcontroller and 7 inch tft lcd, everything is OK but I used 6 font that stored in internal flash and now my code is 130% of microcontroller's flash! when i use optimize is 90% and my code still remind...
unfortunately we can NOT scroll a part of display by ssd1963 commands, I will try write code for it.
memory used is low when you try scroll text.
I'm apprehensive about speed and performance .
thank you.
hi,
I am working on SSD1963 and I need scroll display data vertically,
now in this driver we have set scroll area command (0x33) that set top and bottom of scroll area, when you use this command and start scroll by 0x37 command all of page start scrolling.
I need scroll part of my display (like...
hi,
I'm working with 7" TFT lcd (AT070TN92) and codevision glcd library, but the colors code is wrong, when i use red display blue for example, and other colors is wrong too,
so i can't use library color code
anybody have this problem with codevision library?
I worked with SIM900,
you need download AT command manual of your GSM modem and with a microcontroller like AVR family send AT commands to module by serial port,
commands are like this sample : AT+CMGS for sending SMS
AT command protocol is very simple , you can easy develop your project.
ud23 my friend,
I can use flash for write font and other data , my problem is size of microcontroller flash, it is almost full.
I need a idea for extend flash memory of my microcontroller.
tnx.
in codevisionAVR compiler we can use very benefit functions about TFT lcds, we need define our font and icons in flash memory and include header file and then use functions, in fact I'm travel to ATXmega from LPC1768 for good functions in codevision compiler!
now I need more flash memory for...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
