Data Download & Transfer - Ashtech Micro-Z Interface Protocol Quick Reference

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System Default Settings

Serial port baud rate: 9600, 8, N, 1
Clock steering: Enabled
Raw data output rate: 20.0 sec

Once new values are set they can be saved to memory by issuing a $PASHS,SAV,Y command to the serial port. Parameters are saved to memory until a memory reset or a receiver initialization is performed. This will reset all parameters back to their defaults.
The following command will force the receiver to default values: $PASHS,RST (hit Enter)

To clear the stored almanac, emphemeris data, reset the receiver memory, set the serial port baud rate to the specified rates, and/or send the modem initialization string through the specified port send the $PASHS,INI command. The format of the command is $PASHS,INI,d1,d2,d3,d4,d5,c6 where d1-d4 are the default baud rate codes for ports A-D, d5 is the reset memory code and takes a value of 0-3 with the following codes:

For example sending $PASHS,INI,5,5,5,5,3,0 will do a full receiver reset. Codes 0 and 2 behave like a power cycle. Codes 1 and 3 reset all parameters to default as well as the ephemeris and almanac. Code 2 and 3 reformat the memory card by clearing the FAT table and directory structure. The parameter c6 sets the modem initialization and takes values A-D or 0 = no initialization.

System Initialization - Baud Rate

The $PASHQ,PRT quarries the baud rate of the current port. The return is $PASHR,PRT,c1,d2*cc where c1 is the port (A,B,C,D), d2 is the port code listed below and *cc is the checksum.

To set the baud rate of a port send the following command $PASHS,SPD,A,9 (hit Enter) this sets port A to 115200.

$PASHS,BEEP	Enable/Disable LED and warning beep
$PASHS,OUT,A	turns all output off on port A
$PASHS,NME,ALL,A,OFF	turns off all nmea outputs on port A
$PASHS,SES,DEL	deletes all stored sessions
$PASHS,MSV,3	sets min sv's to 3
$PASHS,ELM,0	sets elevation mask to 0
$PASHS,RCI,5	sets recording interval to 5 sec
$PASHG,MULM,0	turns multipath mitigation off
$PASHS,UTS,N	sets clock steering to no
$PASHS,OUT,A,MBN,PBN,SNV,BIN	enables output of MBN,PBN,SNV,BIN on port A
$PASHS,FRM,Y	enable Ring File memory mode
$PASHS,REC,N	Disable recording data

System Information

$PASHQ,STA,c	Show status of SVs currently locked, c is optional output serial port
$PASHQ,TMP	Query receiver temperature
$PASHQ,WKN	Query GPS week number
$PASHQ,PPS	Display 1PPS parameters
$PASHQ,PAR	Request current settings of receiver parameters
$PASHQ,RID	Request receiver identification

Meteorological Unit Commands

$PASHQ,MET	Query meteorological unit setup
$PASHS,MET,CMD	*Set meteorological unit trigger string (default is 0100P9)**
$PASHS,MET,INIT	Set meteorological unit initialization string (default is none)
$PASHS,MET,INTVL	Set meteorological unit output interval in seconds (default is 5 seconds)
$PASHS,OUT,c,MET	Start/Stop output of meteorological unit data

For example: $PASHS,MET,INTVL,C,10
$PASHS,OUT,C,MET,ON
Sets the MET interval to 10 seconds and enables output on port C

BINEX Commands

Turn on/off BINEX output:
$PASHS,BNX,ON,A
$PASHS,BNX,OFF,A

Set observables output interval:
$PASHS,BNX,INT,1.0

Control output of individual record type:
$PASHS,BNX,TYP,,A,[ON|OFF|0.1]

Query the output status
$PASHQ,BNX
$PASHR,BNX,A,ON,0,ON,1,OFF,126,0.2,B,OFF,C,OFF,D,OFF

Streaming Example

# check to make sure you are connected, and to which port
SEND: $PASHQ,RID
RESPONSE: $PASHR,RID,UZ,30,CJ10,---XM--3--,0A16*7E

SEND: $PASHQ,PRT
RESPONSE: $PASHR,PRT,B,7*57

# Set Port A, C, and D baud rates to 38400
SEND:$PASHS,SPD,A,7
RESPONSE: $PASHR,ACK*3D
SEND: $PASHS,SPD,C,7
RESPONSE: $PASHR,ACK*3D
SEND: $PASHS,SPD,D,7
RESPONSE: $PASHR,ACK*3D

# Turn off data recording
SEND: $PASHS,REC,N
RESPONSE: $PASHR,ACK*3D

# Set the elevation mask to zero
SEND:$PASHS,ELM,0
RESPONSE: $PASHR,ACK*3D

# Set the binex output interval
SEND:$PASHS,BNX,INT,10
RESPONSE: $PASHR,ACK*3D

# Turn binex on on port A
SEND: $PASHS,BNX,ON,A
RESPONSE: $PASHR,ACK*3D

# Save the current set up as power down default
SEND: $PASHS,SAV,Y
RESPONSE: $PASHR,ACK*3D

# Query the status of binex output. Note that binex records are set on for port A.
SEND:$PASHQ,BNX
RESPONSE:$PASHR,BNX,SMT,A,ON,0x0,ON,CHG,0x1,ON,CHG,0x7E,ON,CHG,0x7F,ON,10.00,B,OFF,0x0,ON,CHG,0x1,ON,CHG,0x7E,ON,CHG,0x7F,ON,10.00,C,OFF,0x0,ON,CHG,0x1,ON,CHG,0x7E,ON,CHG,0x7F,ON,10.00,D,OFF,0x0,ON,CHG,0x1,ON,CHG,0x7E,ON,CHG,0x7F,ON,10.00*0C

Questions or problems with receiver firmware uploading may be directed to Ashtech Technical Suport at: (408)615-3980, 1-800-229-2400, or supportmagellangps.com

Last modified Wednesday, 16-Nov-2005 20:58:00 MST