| ??? 02/22/05 09:17 Read: times |
#88124 - Your own idea, Erik? Responding to: ???'s previous message |
Looking at this circuit, it seems that it's basically just using the 89C2051 to convert from RS232/Async to SPI.
You're often suggesting using a cheap, little '51 for doing such simple IO tasks: http://www.8052.com/forum/read.phtml?id=84843 Surely this can be taken as just a practical illustration of the technique? No need to worry that the thing on the other end of the SPI is a non-8051! |
| Topic | Author | Date |
| AVR(AT90S2313,1200 2323,2343,8515) PGM'R | 01/01/70 00:00 | |
| Instructions? | 01/01/70 00:00 | |
| Instructions are intuitive. | 01/01/70 00:00 | |
| File Format | 01/01/70 00:00 | |
| Some more pesty details. | 01/01/70 00:00 | |
| PCB web site file location | 01/01/70 00:00 | |
| AVR? | 01/01/70 00:00 | |
| Off Topic. BULL....! That is an insult.! | 01/01/70 00:00 | |
| it's still an AVR a[pplication | 01/01/70 00:00 | |
| Now, Now | 01/01/70 00:00 | |
| that would be on | 01/01/70 00:00 | |
| the FACT | 01/01/70 00:00 | |
| Not off-topic | 01/01/70 00:00 | |
| Your own idea, Erik? | 01/01/70 00:00 | |
| OPTIONAL | 01/01/70 00:00 | |
| Why two bridges? | 01/01/70 00:00 | |
| A bridge too far? | 01/01/70 00:00 | |
| Options, Options | 01/01/70 00:00 | |
| The other way round | 01/01/70 00:00 | |
| using RC-reset is not good idea | 01/01/70 00:00 | |
| COM2SPI converter | 01/01/70 00:00 | |
| then | 01/01/70 00:00 | |
| not just a com2spi | 01/01/70 00:00 | |
| On Topic | 01/01/70 00:00 | |
| Not off-topic | 01/01/70 00:00 | |
| Not over till the fat lady sings. | 01/01/70 00:00 | |
| Another variation | 01/01/70 00:00 | |
why CC03 | 01/01/70 00:00 | |
| Signal name typo | 01/01/70 00:00 |