27c256 | 4K81H | 68HC11A1 | 68HC11P1 | 68hc24 | 68HC711E9 | 68HC811 | 8255 | A2D | ADC | ADC12138 | Am85C30 | BRCLR | Buffalo | CMOS | EEPROM | EPROM | Ethernet | EVB | EVBU | HC11E1 | HC11E9 | HC711E9 | Horray | ImageCraft | IRQ | Keypad | LCD | MC68HC11D0FN | MC68HC11E1CFU3 | MC68HC11F1 | MC68HC711E9 | MC68HC711E9CFN2 | Microcore11 | Microstamp11 | Minikit | NVRAM | PSD | PSD8xx | PSD9xx | PT1000 | RS232 | RTS | RXD | SPI | SRAM | TXD | Watchdogs | XIRQ

Hi Has anyone tried connecting a PC16550D UART to a 68HC11E1? I finding it difficult to fully utilise the higher baud rates that it offers. I can transmit at 38K, but my time between bytes (where I have to poll the UART to ensure the previous byte has been sent) practically halves my baud rate. I've connected the interrupt line from the UART to the HC11's PortA, and I use a falling edge on PORT A to trigger my interrupt rountines. Just interested if anyone else has used it and if they experienced any funnies. Regards Pete

(You need to be a member of m68hc11 -- send a blank email to m68hc11-subscribe@yahoogroups.com )