| ??? 01/21/06 11:31 Read: times |
#107974 - Hardware? Responding to: ???'s previous message |
Asok Sankar Rudra said:
Dear Ian,
As I said, 48 columns holds 8 characters(7x5 ASCII) plus one col for space. You are absolutely correct.My first subroutine is eeprom2ram.Yes,I have to unlearn that.But learn new what? You did not say how you interface to the hardware but let's assume you just copy 48 bytes from the 8051 to the display. To make it scroll you just need to write different data into the 48 bytes. To make it scroll in one direction you just move the bottom 47 data bytes up one byte and put new data in the bottom byte. To scroll in the opposite direction you move the top 47 bytes down one byte and put a new one in the top. This way you never use more than 48 bytes of RAM. Ian |
| Topic | Author | Date |
| Very long message multiplexing | 01/01/70 00:00 | |
| Speed? | 01/01/70 00:00 | |
| does not matter | 01/01/70 00:00 | |
| How Many Chars on Display? | 01/01/70 00:00 | |
| To Ian | 01/01/70 00:00 | |
| Hardware? | 01/01/70 00:00 | |
| Hardware,Ian | 01/01/70 00:00 | |
| Hardware | 01/01/70 00:00 | |
| When erik and oleg can spare time? | 01/01/70 00:00 | |
| Such impudence! | 01/01/70 00:00 | |
| exactly | 01/01/70 00:00 | |
| a circular buffer does not require data | 01/01/70 00:00 | |
indeed but | 01/01/70 00:00 | |
| circular buffer | 01/01/70 00:00 | |
| Really Dan I said experienced.. | 01/01/70 00:00 | |
| Are you the 1st one? | 01/01/70 00:00 | |
| by the way I have no experienceI | 01/01/70 00:00 |