Evaluation Kit User Manual for PIC Board

EV6000

© 1996 Consumer Microcircuits Limited

12

UM6000/3

1.6.2.2 EV6020/EV6040 Diagnostic Firmware

This is supplied both as a collection of assembler source routines on disk and pre-programmed into the

PIC

µC, where it is identified as EF6000. The diagnostic and applications firmware supplied may be

replaced or supplemented by the user's own applications firmware. The PIC

µC firmware is controlled

by a terminal emulator program, from a PC with Windows 3.11, '95 or NT.

Text commands are entered by the user into the terminal emulator. Characters are not case sensitive.

There is a global limit of 6 characters on any user input string. Whenever the >ok prompt is

displayed a new command may be entered and should be terminated by pressing the <Return> key.

Whenever a command has been entered, the > prompt is returned if data entry is required. To use a

function, the appropriate set-up commands must be entered before-hand. For example, to use the

EV6040 to transmit external data to the line, the following should be entered:

>ok

6040<Return>

; sets EV6000 for use with the EV6040

>ok

tx<Return>

; sets the FX604 into Tx mode

>ok

txext<Return>

; select desired function

>

The diagnostic commands are shown below.

(a)

Set-up commands:

6020

Set board for connection to and control of EV6020.

6040

Set board for connection to and control of EV6040.

dbit

Set FSK data format to 7 or 8 data bits. The user is prompted for the number of data

bits.

zp

Set FX602/FX604 into zero power mode.

zpirq

Set FX602 into zero power mode, generating a pulse at the IRQN pin if ringing or a

line reversal is detected.

alert

Set FX602 into tone alert detect mode.

rx&tx

Set FX604 into Rx mode with back channel enabled.

tx

Set FX604 into Tx mode without data retiming.

rx

Set FX602/FX604 into Rx mode without data retiming.

(b)

Utilities: (Press <Esc> to exit these functions)

f!

Enter a mode where a 5 character string will write hex data to any register. PIC

µC

ports are mapped as registers. Use the format aa dd<Return> where

aa

is the register address in hex and dd is the data.

f@

Enter a mode where a 2 character string containing a register address in hex will

return the contents of that register.

echo

Enter a test mode where any text string entered by the user will be returned to the

terminal emulator by the EV6000.

dtmf

Enter a mode where any DTMF digit entered by the user will be transmitted by the

EV6020/6040.