| ??? 12/04/08 09:24 Read: times |
#160594 - SPI Responding to: ???'s previous message |
"...just read the technical reference, the control on thermal printer are just a common I/O not a SPI or I2c...."
Amor, i'm talking about connection between microcontroller and thermal head. Bit banged GPIO is possible, but is really slow, and this will result in slow printing speed. If You do not believe me, make follow - plane DATA and CLOCK lines to be SPI port or at least RXD,TXD lines on 8051. - use these lines bit-banging, if You prefer. In one device (cab taximeter) i use 8052 (w78e516b, 256 RAM) , RX/TX in serial mode 0. Printer driver (with fonts) is 10kB code, it is line printing driver, no buffer, no command language,no character scalling, only font changing . regards |
| Topic | Author | Date |
| Thermal printer controller(suggestion for a MCU) | 01/01/70 00:00 | |
| Datasheet: don't design without it! | 01/01/70 00:00 | |
| technical ref; | 01/01/70 00:00 | |
| based on what you have posted ... | 01/01/70 00:00 | |
| no SPECIFIC MCU? | 01/01/70 00:00 | |
| Go Here... | 01/01/70 00:00 | |
| long list!! | 01/01/70 00:00 | |
| spi? | 01/01/70 00:00 | |
| external interface | 01/01/70 00:00 | |
| The chip for the job | 01/01/70 00:00 | |
| SPI | 01/01/70 00:00 | |
| thakn you stefan | 01/01/70 00:00 | |
Where to start | 01/01/70 00:00 | |
| Communication is up to you | 01/01/70 00:00 |