User`s guide

4: Record Transfer Interface (BSCRTI)

DC 900-1406E 77

4.3 BSCMODEM Procedure

This procedure can be called only after the ICP has been assigned (see the BSCASL pro-

cedure, Section 4.1 on page 74).

This procedure issues an Autodial Start command (command code 38) or Modem Con-

ﬁguration command (command code 39) to the ICP and waits for a response.

Calling Sequence

ReturnCode = BSCMODEM (rdblock, string, dtime, code)

Procedures Called

BSCRESET and BSCFWY

Functions

1. Veriﬁes I/O channel assignment and legal parameters.

2. Issues the appropriate command code to the ICP based on

code.

3. Issues a read to the ICP and waits for completion, unexpected response, fatal

error, or timeout (

dtime).

4. Calls BSCRESET if a fatal error or timeout (

dtime) occurs.

Arguments

rdblock This is a pointer to a data structure of type TRANBUF. It receives the

response from the ICP. See Section 4.8 on page 91 or the

BSCTRAN.INC

include ﬁle for details of the data structure.

string This is a pointer to a descriptor. It is a character string containing the

autodial start or modem conﬁguration string.