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???
12/12/07 18:56
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Msg Score: -1
 -1 Answer is Wrong		 #148109 - a breeze, stick a ftdi chip on the board
Responding to: ???'s previous message
The CPU to printer interface would have to be USB in nature and I don't have any information on using a 89LP to communicate with a printer using that interface. USB interfaces are still a mystery to me ..... If someone can make developing a USB interface to a printer understandable to me I will use that option.
a breeze, stick a ftdi chip on the board.

ftdi makes chips that convert serial and/or parallel to USB and supply the software all you do is feeding the ftdi chip. Depending on the chip you can use UART, SPI or "FIFO" (parallel)

The chips are quite reasonably priced (check mouser)

Erik



List of 35 messages in thread
TopicAuthorDate
MMC card to 8052 interface            01/01/70 00:00      
   One possibility            01/01/70 00:00      
   SD in SPI mode            01/01/70 00:00      
      SD/MMC in SPI mode            01/01/70 00:00      
   Vinculum chip with USB-flash            01/01/70 00:00      
      USB Flash            01/01/70 00:00      
   VERY GOOD IDEA            01/01/70 00:00      
      Which idea??            01/01/70 00:00      
   MMC card to 8052 interface            01/01/70 00:00      
      File system?            01/01/70 00:00      
         Not necessary            01/01/70 00:00      
            File system, or not filesystem...?            01/01/70 00:00      
            lost interest or second option - USB            01/01/70 00:00      
               a breeze, stick a ftdi chip on the board            01/01/70 00:00      
                  Wrong - USB slave/master misx-up?            01/01/70 00:00      
                     USB Printer            01/01/70 00:00      
                        Well, I'll be...            01/01/70 00:00      
                     No, Erik is right            01/01/70 00:00      
                        Most of lasers?            01/01/70 00:00      
                           Re:Most of lasers            01/01/70 00:00      
                              Caveat Emptor            01/01/70 00:00      
                                 umm most lasers ..................            01/01/70 00:00      
                  Then Vinculum with a USB Stick            01/01/70 00:00      
               what kind of printer?            01/01/70 00:00      
               Why would you want to just print it?!            01/01/70 00:00      
                  It's a state requirement            01/01/70 00:00      
                     That explains a lot...            01/01/70 00:00      
                     not necessarily, but            01/01/70 00:00      
                        Oki still make dot matrix printers            01/01/70 00:00      
                           hope with OKI            01/01/70 00:00      
                              OKI's response posted            01/01/70 00:00      
                                 Oki            01/01/70 00:00      
                                    There are more...            01/01/70 00:00      
      SiLabs Example, ELM-chan.org and specs            01/01/70 00:00      
   File System            01/01/70 00:00      

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