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i am using keil MCBX51 board my project requires 2 serial port i am using ext serial port for monitor and i am left with int serial port only but i want 2 serial port
what to do plz.. help me friends
how can i acess ext serial port, how to config it
those relate to the '51 (which the OP erronesously refer to) I had a peek at the MCBX51 and it is a 251 board. Since I rejected this pittiful attempt at a "16 bit '51" long ago (just have a look at the XA), I do not recall if it has two UARTs, but it may.
Erik
"those relate to the '51"
The question arose in an 8051 context, but the answer is generic - here's the list:
- get a 2-UART derivative plus some of the solutions below - switch the 1 internal UART (if data are not simultaneous) - softUART if not too high speed and you know exactly what you do - use parallel interfaced external UART - use SPI/I2C interfaced external UART - use a "slave micro" interfaced via I2C/SPI
All of those could be applied generically to any processor.
"the MCBX51 ... is a 251 board"
No, it's a generic board, supporting both:
"The Keil MCBx51 Evaluation Board works with all 44-pin 8051 and 251 devices ... allows you to investigate the capabilities of the 8051 and 251"
http://www.keil.com/boards/ http://www.keil.com/mcbx51/