| ??? 09/13/07 09:46 Read: times |
#144560 - 3V & 5V interfacing Responding to: ???'s previous message |
It seems your cpu is 3V and most displays are 5V - thus the mentions of the two supplies. The problem doesn't end there - you need to be sure both the display and the cpu will talk to each other with the split voltages. Sometimes you can connect the display directly and it *may* work. My recent project where I used a graphics lcd, I used level translator ics to ensure that it would work. |
| Topic | Author | Date |
| Choosing LCD | 01/01/70 00:00 | |
| Sound like you want a graphic lcd then! | 01/01/70 00:00 | |
| possible? | 01/01/70 00:00 | |
| Depends | 01/01/70 00:00 | |
| yes | 01/01/70 00:00 | |
| Didn't search first? | 01/01/70 00:00 | |
| easy? | 01/01/70 00:00 | |
| couldn't find | 01/01/70 00:00 | |
| But did you search? | 01/01/70 00:00 | |
| ASCII-Art Waveform | 01/01/70 00:00 | |
| thanks | 01/01/70 00:00 | |
| wrong question! | 01/01/70 00:00 | |
| i guess | 01/01/70 00:00 | |
| GLCD with Char Mode??? | 01/01/70 00:00 | |
| absolutely, if you have the need | 01/01/70 00:00 | |
| Look for my sample drivers here: | 01/01/70 00:00 | |
| Graphics LCD Tutorial | 01/01/70 00:00 | |
| the datasheet | 01/01/70 00:00 | |
| sample | 01/01/70 00:00 | |
| hi | 01/01/70 00:00 | |
| need? | 01/01/70 00:00 | |
| Thats for you to answer | 01/01/70 00:00 | |
| try that | 01/01/70 00:00 | |
| Back to basics | 01/01/70 00:00 | |
| types | 01/01/70 00:00 | |
| CSA & CSB | 01/01/70 00:00 | |
| chip select A &B | 01/01/70 00:00 | |
| Two Chip Select Signals | 01/01/70 00:00 | |
| the crux | 01/01/70 00:00 | |
| so..... | 01/01/70 00:00 | |
| no, not necessarily | 01/01/70 00:00 | |
| Two Chip Select singnals | 01/01/70 00:00 | |
| Data bus... | 01/01/70 00:00 | |
| Speed | 01/01/70 00:00 | |
| function | 01/01/70 00:00 | |
| to find out | 01/01/70 00:00 | |
| ?? | 01/01/70 00:00 | |
| Vcc | 01/01/70 00:00 | |
| sure... | 01/01/70 00:00 | |
| 3V & 5V interfacing | 01/01/70 00:00 | |
| Tradeoff | 01/01/70 00:00 | |
| ... and slower | 01/01/70 00:00 | |
| dot matrix.. | 01/01/70 00:00 | |
| Exactly as stated | 01/01/70 00:00 | |
| CGRAM | 01/01/70 00:00 | |
| As I mentioned... | 01/01/70 00:00 | |
| A CGRAM Usage | 01/01/70 00:00 | |
| ?? | 01/01/70 00:00 | |
| According to the datasheet... | 01/01/70 00:00 | |
| not available | 01/01/70 00:00 | |
| In C | 01/01/70 00:00 | |
| Read,read,read | 01/01/70 00:00 | |
| Graphic lcd | 01/01/70 00:00 | |
| Connect to port pins! | 01/01/70 00:00 | |
| ya... | 01/01/70 00:00 | |
| What is ya? | 01/01/70 00:00 | |
| anyway... | 01/01/70 00:00 | |
| i see.. | 01/01/70 00:00 | |
| Data/command | 01/01/70 00:00 | |
| :) | 01/01/70 00:00 | |
| La ? | 01/01/70 00:00 | |
| Another way to get result | 01/01/70 00:00 | |
| data bus signal | 01/01/70 00:00 | |
| Say what? | 01/01/70 00:00 | |
| yes | 01/01/70 00:00 | |
| Your question is not clear to me | 01/01/70 00:00 | |
| ok | 01/01/70 00:00 | |
| Same as last time... | 01/01/70 00:00 | |
| thanks | 01/01/70 00:00 | |
| current lcd | 01/01/70 00:00 | |
| cyglink | 01/01/70 00:00 | |
| RE: cyglink | 01/01/70 00:00 | |
| cyglink file | 01/01/70 00:00 | |
Project folder | 01/01/70 00:00 |