DSP resolver user manual
User Manual
Version 1.15
6.
SOFTWARE UPDATES
Module contains a serial interface for software downloads. The interface utilises RS232
protocol and TTL level signals. An external Signal level converter is required in case of
AXRES-CO-V2 if module is connected to an external device like a laptop. Serial interface
connector is located so that it is accessable only in modules with open type housing. If
software has to be updated to a module with closed type housing the PCB need to be
removed from the housing.
6.1
Programming cable
Connections of a PCB level programming cable connection is shown in table XX. The
Connector housing on the AXRES end is JST ZHR-4 and a suitable crimp is BZH-003-
PO.5. These accessories are available example from Farnell electronics (in Europe) or from
Axiomatic Technologies. Serial signals must be converted from TTL to RS232 level or vica
versa by an external signal level converter. Axiomatic IFC-W1R-TTL-RS232-01-000 is a
recommended device. The signal level converter can be connected to PC by RS232 modem
cable.
J1 on Axiomatic RS232 level
converter
AXRES J4
Signal
2, 7
1
+5V
3
2
txd
5
3
rxd
1, 8
4
GND
Table 6.1: Programming cable pinouts
Copyright
©
Axiomatic Technologies Oy
19/56
Illustration 6.1: Setup for software updates
PC
MVRES
Serial port (COM1)
J4
Power supply 12 / 24V
J1, J2, X1
or X2
TTL to
RS232
converter
