http://www.8051projects.net/ Learn to make simple microcontroller projects, pic, 8051, avr and arm projects. download 8051 projects, tutorials, libraries, sample codes. join the microcontroller discussion forum and ask doubts regarding electronics. the best source for 8051 over internet. Thu, 04 Dec 2008 15:49:43 -0800 http://backend.userland.com/rss092 Hi,I'm new to arm and microcontrollers, played with pic before but I decided I want to learn arm.I already have a working LCD driver for t6963c, but I <noauthor@nospam.com> http://www.8051projects.net/forum-t4144.html hi mhel....it is much easier to have glcd in LPC2138 than 51 only thing... u must know how to handle tje gpios a thread in corresponding topic is shyam<shyam@nospam.com> http://www.8051projects.net/forum-t4144.html Thanks for reply Shyam,Yes, I have learnt how to control GPIOs, I also have a working LCD but I want to learn how to do the offscreen buffering ( i th mhel<jaqueza@nospam.com> http://www.8051projects.net/forum-t4144.html of course it can be done......u r not using fonts in ur code....i have use 18 fonts with my lpc 2148... no problem with that......try it out...ne pr shyam<shyam@nospam.com> http://www.8051projects.net/forum-t4144.html hi Shyam,The attached is my attempt to port the code, but I got stuck, some definitions are not included,particularly the XBYTES[] array, it's probabl mhel<jaqueza@nospam.com> http://www.8051projects.net/forum-t4144.html well if u really in need...oki'll have it for download here....... do u only want to show image on lcd??? shyam<shyam@nospam.com> http://www.8051projects.net/forum-t4144.html Thanks, Basically, what I want is to draw the font/image in a buffer before actually sending it to the lcd, as it is done the 8051 code, I want to und mhel<jaqueza@nospam.com> http://www.8051projects.net/forum-t4144.html well mhel i am gonna upload a code .. just see if it helps... otherwise we will surely resume the discussion...watch out here i'll let u know as soon shyam<shyam@nospam.com> http://www.8051projects.net/forum-t4144.html hi mhel u can download the library from http://www.8051projects.net/downloads197.html shyam<shyam@nospam.com> http://www.8051projects.net/forum-t4144.html I'll look into it.thanks.Edit;This looks like the same code I got from lpc2000 yahoo group. which I already have working too.I'm just having a hard ti mhel<jaqueza@nospam.com> http://www.8051projects.net/forum-t4144.html hmm ,,well then i m gonna convert that 51 code that too as early as possible... just be with me.... shyam<shyam@nospam.com> http://www.8051projects.net/forum-t4144.html hi mhel,cudnt find the following definitions....CODE:
byte_basso(dato);
 byte_alto(dato);plz.. check if u have them n w shyam<shyam@nospam.com> http://www.8051projects.net/forum-t4144.html I couldn't find that part too, I assumed it's sending the low byte first then high byte,that's what I did in my attempt. I think it's in Italian.I onl mhel<jaqueza@nospam.com> http://www.8051projects.net/forum-t4144.html hi mhel got this attatchment....will lokk on to it.... shyam<shyam@nospam.com> http://www.8051projects.net/forum-t4144.html Hi,I'm making some progress , I manage to display something but it's not as expected.I'm using 5x8 font only. The text display overlaps, characters ar mhel<jaqueza@nospam.com> http://www.8051projects.net/forum-t4144.html 7zip files is not supported , I forgot about it. lcdt.zipEdit: how do I update the attachment I want to reupload a new one??? mhel<jaqueza@nospam.com> http://www.8051projects.net/forum-t4144.html the box routine is working ok, somehow I'm limited to 127x63 size of box. still trying to find which to hack in the font drawing is still the same. mhel<jaqueza@nospam.com> http://www.8051projects.net/forum-t4144.html mhel wrote ... 7zip files is not supported , I forgot about it. lcdt.zipEdit: how do I update the attachment I want to reupload a new one???if you wan Ajay<contact@nospam.com> http://www.8051projects.net/forum-t4144.html Thanks guys, but I freaking did it my bit rotation was wrong, I just have that cut and paste from post somewhere didn't really know it's inner worki mhel<jaqueza@nospam.com> http://www.8051projects.net/forum-t4144.html hi mhel...i understand how excited u wud be for this project runnning in front of u...u have done a lot of hard work....i hve been out of my office shyam<shyam@nospam.com> http://www.8051projects.net/forum-t4144.html @mhel but the original author uses 128x128 lcd, mine is 240x128well if u talking abt the following function u r rightCODE:
static uint32_t curre shyam<shyam@nospam.com> http://www.8051projects.net/forum-t4144.html shyam:I'll try to clean it first then I'll upload it.thanks. mhel<jaqueza@nospam.com> http://www.8051projects.net/forum-t4144.html Hi Shyam,this is the simple setup I have, to test the lcd.pinouts are in the config.h. this is taken from WinArm samples, I use CodeBlocks asas my ed mhel<jaqueza@nospam.com> http://www.8051projects.net/forum-t4144.html bottom line...wether it be 240x128 or 128x128...for complete page scan we need to scan 128so doesnt matter..it wud be 1024 in both the cases...not tes mhel<jaqueza@nospam.com> http://www.8051projects.net/forum-t4144.html I got the image drawing working, I can't believe it's this simple I had to hit my head a couple of times CODE:uint8_t draw_img(uint8_t x1, uin mhel<jaqueza@nospam.com> http://www.8051projects.net/forum-t4144.html congratulations.. mhel!!!!... enjoy your work!! shyam<shyam@nospam.com> http://www.8051projects.net/forum-t4144.html thnx shyam,one question, in the lcd code, what do you think would be the posible uses of the function copy_page(), right now I have it commented out s mhel<jaqueza@nospam.com> http://www.8051projects.net/forum-t4144.html I managed to add blinking cursor to lcd driver: CODE:static void set_cursor(uint8_t row, uint8_t col, uint8_t cursor)
{
  mhel<jaqueza@nospam.com> http://www.8051projects.net/forum-t4144.html great going mhel (whats your real name )adding blinking cursor to LCD will keep controller busy, is it? coz gfx LCD has to be updated after every ha Ajay<contact@nospam.com> http://www.8051projects.net/forum-t4144.html he is a wise guy.. using interrupts..there are lots of interrupt sources in arm that you can use mostly IRQ not much burden on the controller...!! A shyam<shyam@nospam.com> http://www.8051projects.net/forum-t4144.html I only needed the cursor display when I'm ask to input values via keyboard, it seems odd without the cursor, and the blinking is just aesthetic i thou mhel<jaqueza@nospam.com> http://www.8051projects.net/forum-t4144.html sounds sweet.. make a small video i wanna see scrolling thingy.. Ajay<contact@nospam.com> http://www.8051projects.net/forum-t4144.html finally figured out how to scroll sweeet.this works for a 5x8 font, need to change the hard values to variablesto match the font size used.Note: thi mhel<jaqueza@nospam.com> http://www.8051projects.net/forum-t4144.html Ajay wrote ...sounds sweet.. make a small video i wanna see scrolling thingy..me tooooooooooo abbas1707<abbas@nospam.com> http://www.8051projects.net/forum-t4144.html shyam,just curious, why is it that in glcd.h the defines for control pins are: CODE:
#define LCD_CS2         BIT(10) &n mhel<jaqueza@nospam.com> http://www.8051projects.net/forum-t4144.html Hi all,how have you connected your dsiplay to the LPChave you used a level shifter from 3,3 to 5V or is it connected directly to the LPC port pins.reg tom_softi<thomas.fruechtl@nospam.com> http://www.8051projects.net/forum-t4144.html well you can do that yourself add it.. will see u on chat and explain you how to do that Ajay<contact@nospam.com> http://www.8051projects.net/forum-t4144.html level shifter is not required!!!..the pins (data/ctrl) are 3v3 compattible . By the way which LCD u plan to use?? shyam<shyam@nospam.com> http://www.8051projects.net/forum-t4144.html Sorry guys for late reply, been busy. I was not able to take video of the scrolling, with t6963c scrolling does not look good since it causes ghostin mhel<jaqueza@nospam.com> http://www.8051projects.net/forum-t4144.html i am working on Mukund Deshmukh's code for KS0108 adapted from the 51 code.i am attaching the code .i am facing a strange problem.i can see data on on shyam<shyam@nospam.com> http://www.8051projects.net/forum-t4144.html u r right mhel...but u can see in the code..LCD_CONTROL is not used any where.. this is cause i have not started the cleaning job yet shyam<shyam@nospam.com> http://www.8051projects.net/forum-t4144.html hello everybody!!!!as always the code was perfect somehow the PIN P0.2 was not functional dont know why...any ways i am pleased to announce that this shyam<shyam@nospam.com> http://www.8051projects.net/forum-t4144.html could it be the pullup? P0.2 is an i2c pin. mhel<jaqueza@nospam.com> http://www.8051projects.net/forum-t4144.html aha!!!u got point there!!|o| how cud i have missed it??? will check that and reply!thanx Mhel shyam<shyam@nospam.com> http://www.8051projects.net/forum-t4144.html