HARDWARE CONFIGURATION
Bios_no := dec_value
Dev_name := Dev_strDev_no, Dev_name
:= Dev_name
[note : length(Dev_name) <= 8]Dev_str := ([a..z] | [A..Z]))*
Dev_no := 1..99
Pccom := Com_irq, Pccom
:= Com_irq
:= nil
Com_irq := [Irq:Com_set]
Com_set := Com_vect:Com_set
:=
Com_vect
:=
nil
Com_vect := Base,Portno,Vector,Active:Com_port
Com_port := Port, Com_port
:= Port
:= nil
Port := (Buf_siz:Baud_rate:Line_control
:Modem_control:Flow_control)
:= (Buf_siz:Baud_rate:Line_control
:Modem_control:Flow_control)
* dec_value
Irq := 2 | 3 | 4 | 5 | 6 | 7 |10 |11 |12 |14 |15
Base := hex_value
Portno := 1 | 2 | 4 | 8
Vector := hex_value | 0
Active := HI | LO
Buf_siz := dec_value k
:= dec_value
:= nil
Baud_rate := dec_value
Line_control := Parity-Data-Stop
Parity := E | O | N
Data := 5 | 6 | 7 | 8
Stop := 1 | 2
Modem_control := Mc+Modem_control
:= Mc
:= nil
Mc = DTR | RTS | OUT1 | OUT2
Flow_control := Fc+Flow_control
:= Fc
:= nil
Fc = DTR | RTS | XON
Comment := # string
[a whole line comment]
dec_value := decimal number
hex_value := hexadecimal number
 |
The
size of total buffer in one Com_set must be less than 64K. However, the
size of total buffer used in driver can be larger than 64K. |
|
The
number of ports in one Com_set must matches the number of Com_ports in
the following definition. |
|
The
maximum size of the buffer allocated for one port is 32K, but The
maximum size of the buffer allocated for one set is 64K. |
|
In
Com_port definition, buffer size, baud rate, and line control must be
specified, both modem control and flow control could be not specified
if you do not want these capabilities, however the separator ":" can
not be skipped. |
|
The
PCCOM driver that is DOS-style driver is installed when system boots by
means of inserting the following line in config.sys DEVICE=C:PCCOM.SYS @c:\pccom.opt The content of the file "pccom.opt" is configuration rule specified; the character '@' must be prefixed with the configuration file. |
 |
 |
 |