Hardware Installation - Texas Instruments MSP430 User Manual

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Hardware Installation

To install the MSP-GANG430 hardware:
1. Connect the MSP-GANG430 to the serial port (COM1 to COM15 or extension board) of the PC using
the 9-pin Sub-D connector.
2. Connect an external power supply to the MSP-GANG430. The voltage of the power supply must be
between 9 V and 15 V dc and must be capable of providing a minimum current of 300 mA. The center
post of the power supply connector on the MSP-GANG430 is the positive-voltage terminal.
The power supply connection status is indicated by the yellow system LED on the MSP-GANG430.
3. Attach the expansion board to the 25-pin Sub-D connector on the MSP-GANG430. The expansion
board provides connectivity for up to eight targets, using the included 14-pin cables. The target
MSP430 flash devices can be in stand-alone sockets or can be on an application's PCB, and they are
accessed via the JTAG signals.
NOTE: Maximum Signal Path Length: 60 cm
The maximum length of the signal path between the 25-pin Sub-D connector on the
MSP-GANG430 and a target device is 60 cm. If cables between the programmer and targets
are longer than 20 cm, serial resistors of 100 Ω should be inserted on signals TCK and TMS
on the expansion board. TCK is on pin 4 and TMS is on pin 3 of the 25-pin Sub-D connector.
4. The MSP-GANG430 provides the selected power-supply voltage V
the 25-pin Sub-D target connector; pin 2 on the 14-pin cable) to the target devices in application PCBs.
A maximum total current of 150 mA can be provided by the programmer to the targets.
When an external supply voltage V
sense input pin (MSP_VCC_IN on pin 15 of the 25-pin Sub-D target connector; pin 4 on the 14-pin
cable) of the programmer. This connection allows the integrated level shifters to match the target JTAG
signal levels with the external supply voltage.
If the expander PCB (25-pin Sub-D to 8 x 14-pin header) is used, the external supply voltage must be
connected to pin 4 of the 14-pin header at position 1.
When an external supply voltage is used for the target systems, it is important
to disconnect VCC_MSP from the targets to avoid power-supply conflicts that
could potential damage the MSP-GANG430 and the targets. Connect the
external supply voltage to MSP_VCC_IN.
It is not possible to simultaneously use the MSP-GANG430 with targets
powered by the MSP-GANG430 and with targets powered by an external
supply.
SLAU101O – March 2003 – Revised May 2010
is used for the target systems, it also should be connected to the
CC
CAUTION
Copyright © 2003–2010, Texas Instruments Incorporated
Hardware Installation
(VCC_MSP on pins 7 and 14 of
CC
Introduction, Installation, and Setup
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