Matrix user forums

great sir; its working...... printicon(0);printicon(1); etc....... what if i want to make readable command like printicon(smily); printicon(funny); for know what i am printing on POV for ease. I think there should be way to do it.....Your last post really did increase knowledge and i am feeling comf...

sir need one query more: i want to make a routine to print icon in c block. char SMILE: (why need to char SMILE? without it does not compile and compiler tells that it may be used without initializtion) printIcon(SMILE); in defination and function declaration: ROMARRAY_S SMILE ROMARRAY_E= {0,0,126,1...

Plz in little detail specific to: 1. Difference between rom char* and ROMARRAY_S and ROMARRY_E and significance. 2. Cannot we use ROMARRAY_S and ROMARRY_E instead of rom char* to free RAM. Sir, I have managed to make a clock and for dummy first to display second. i am currently using 628a portb for ...

sir i got the solution, i edited the last post and it is working fine in proteus, project is not complete yet but i will ask you if i get stuck. anyhow thanks for great help.

Great to know that you are keeping eye on my progress and helping me out!! thanks. I did make complete LUT table from c file of glcd as: ROMARRAY_S gLCD_1_ASCII7 ROMARRAY_E = {.....} etc ROMARRAY_S gLCD_1_ASCII8 ROMARRAY_E = {.....} etc etc When compiled it showed RAM available:368 bytes, used:43 by...

Got it, i compiled it.

Sorry to disturb u.

pov test.c(166): error: failure It is not compiling in any way. I put rom char* in supplementary code. void printChar(char letter) in function imiplementation. It did not compile. I also tried to put all code on c block and void printChar(char letter) in main c code block, but compiler does not comp...

Sir nothing happened.

Sir, i did make some work on propeller display via c code. It is not compiling, it was written for Mickro C, i did try in many ways, but compiler does not compile it. Plz have a look and give suggestion.b Us C language is different in flowcode? How to put it in c code/supplementary block. code: char...

Great Sir!!

Thanks sir: Got the point. One thing in confusion, const char ASCII[] in your custom code c file, it is more than 256 byte where LUT cannot be more than 256. As flowcode uses boostc compiler did not it generated error while compiling on your program. If i make LUT via rom char* i cannot make one LUT...

Thanks Sir: Sir, you did not mention if it is okay to use the routine of 32 bit to send data to LED? I got your point and looked in custom.c, but getting mess. Plz make a simple fcf as example to show the routine of sending letter ABC (ASCII) to port B. {0x7e,0x09,0x09,0x09,0x7e}, // A {0x7f,0x49,0x...

Hi Benj and all, I made a fcf with proteus simulation to show how to transmit 32 bit data eg 0xaaaaaaaa via 628a chip. Actually i want to make a POV of 32 bit single color. In simulation it is running okay. I need feedback on it if i am right in taking this path to transmit image data or pixel to 32...

Great sir! I am actually trying to first make 32 bit display to master first. You suggested good ram for better access and display and get rid of complications, as i am novice and learner I prefer using readily avaiable chips to make it first. I want to make analog and digital clock and some icons t...

Hi all: I am using V4 version, i did not know how to shift this topic, if someone can plz shift it to appropriate forum . I tried to connect 877a to 24c64 eeprom via I2c to do some experiment with read and write. In TUT there is example of writing and reading, i applied it but there seems to be some...

Sir, I made a simple 32 bit single color POV setup. I created LUT in rom with four byte to make it 32 bit. in proteus simulation everything is working fine and i feel it will work perfectly. I want to add external EEPROm 24c64a chip I2c. for what i have to use at least 877a chip. I am stuck in figur...

Sir, plz upload circuit schematic that you used for propeller clock. Other thing is that you made custom c file, can we make just 8 bit rgb propeller display with PWM without custom c file by just using c block and some c code.

Sorry sir, i might have confused you.

I want to generate 50 hz PWM signal via hardware PWM on 877a. Can it be done?

It was just for testing purpose. else i will use 19 mhz. I got grip on how to generate 50 hz, but regarding PWM at 50 Hz with hardware 877a is troublesome. I think cannot be done, but there should be other way. I created software PWM from tut and i am not concern of frequency anymore as it is genera...

Thanks for reply:

PWM hardware: Two 50Hz o/p in 180 deg with variable duty cycle to each other so can control a bridge arrangement

Plz give me link where you posted this topic.

Hi Medelec and Senior: Sir, I made a prototype of stable 50Hz inverter. It worked fine. It was with center tapped transformer. I have high frequency transformer and no problem in generating high DC voltage, hence i I started working on H bridge inverter. How to make 50 HZ PWM pulses. In hardware PWM...

Thanks sir! I have been through those tut. Through those tut i was able to make UPS fcf. Senior like you are great assest to our community.

Ture sir, If we build the circuit on proteus and simulate it then we will know that it is not working as supposed to be (though I am newbie, doing work on proteus is better than making hardware first) but i think there need something professionalism in making such counter. once it is done on proteus...

Once again thanks sir!

Great sir, you are my BOSS! Million of thanks. Sir, do little explain about how you calculated interrupt frequency to make 50 hz. (tmr0). second as i early mentioned, i am student new to pic. I did run simulation on proteus, frequency counter is nothing showing anything. Plz also do have a look on p...