PARCHAR PCH PCDescription:Returns the current value from the parallel port. This command is used in the test fixture to determine if the parallel port is functioning properly during the initial system testing.Form:PARCHAR|PCH|PC Argument List: none Response:
PARCHAR RESPONSE
Verbose- "OK\r\n" to acknowledge receipt of command if OK followed by
"Decimal=d Hex=xx Binary=bbbb" to return the 'character' found by
reading the parallel port, or
"ERROR- [Description]\r\n" if error, ending command
Terse- "0\r\n" to acknowledge receipt of command if OK followed by
"0x" to return hex 'character' found by reading the parallel port
"[NON-ZERO POSTIVE ERROR NUMBER]\r\n" if error, ending command
"\r\n" concludes modify responses (empty line)
Examples:
Verbose command to retrieve current value:
PARCHAR <enter>
Response is: OK\r\n
Decimal=9 Hex=09 Binary=1001\r\n
Terse command to retrieve current value:
PC <enter>
Response is: 0\r\n
0x09\r\n
Notes:Products Supporting CommandCreated By: Adtec Digital Inc |