| ??? 04/07/09 11:34 Read: times |
#164448 - How to print graphs on a printer at centronix port by 8051 |
Hello all
I want to print a graph of some tabular data of two variables, read by my 8051 controller, on a dot matrix printer(Epson LX-300). I have not yet started but I am sure I will design the hardware by simply using IO ports of any 8051 core controller and some buffer, once I know the way/protocol for data flow from MCU to printer port. For alphanumeric printing I guess its quiet simple, almost similar to writing a alphanumeric LCD or hyperterminal. I have used graphical LCDs interfaced with 8051 micro controllers. Will it be same as, we can assume a page as a matrix of dots & write or leave dots by writing 1 or 0 to the each dot in a group of 8 dots as a byte starting from first byte at top left corner of the page? Does the procedure vary significantly from printer to printer? |
| Topic | Author | Date |
| How to print graphs on a printer at centronix port by 8051 | 01/01/70 00:00 | |
| Assume nothing! | 01/01/70 00:00 | |
| Specifications donot provide protocols | 01/01/70 00:00 | |
| So you need the technical specifications! | 01/01/70 00:00 | |
| Its a low cost Standalone system | 01/01/70 00:00 | |
| 01/01/70 00:00 | ||
| the protocol | 01/01/70 00:00 | |
| some links | 01/01/70 00:00 | |
| The signaling protocol is well-defined | 01/01/70 00:00 | |
| Actually quite simple to use a matrix printer. | 01/01/70 00:00 | |
| Questions of definition | 01/01/70 00:00 | |
| A graph normally requires graphics | 01/01/70 00:00 | |
| Indeed, but one is a subset of the other. | 01/01/70 00:00 | |
| You would do banded output | 01/01/70 00:00 | |
| suppose the data is presented in portrait format ... | 01/01/70 00:00 | |
| Band size doesn't matter so much | 01/01/70 00:00 | |
| It only feeds in portrait format | 01/01/70 00:00 | |
| No | 01/01/70 00:00 | |
You're right within the scope of your thinking | 01/01/70 00:00 |