SLAU358Q September 2011 – October 2019
To install the MSP Gang Programmer hardware:
The expansion board connects 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 PCB. The MSP Gang Programmer can connect to these devices through JTAG, SBW, or BSL signals.
If the target device is an MSP432 MCU, use the adapter kit (MSP-GANG-432ADPTR) to convert from 14-pin JTAG connectors to 20-pin Arm connectors.
The USB port (5 V, 0.5 A) can supply the programmer.
If the computer does not have a USB port, connect the programmer to a serial port (COM1 to COM255) using a 9-pin Sub-D connector.
NOTE
External Power Supply
An external power supply must provide a voltage between 6 V and 10 V DC and must provide a minimum current of 800 mA. The center post of the power supply connector on the MSP Gang Programmer is the positive-voltage terminal. The programmer indicates the status of the power supply connection by using system LEDs and the LCD back light.
NOTE
Maximum Signal Path Length: 50 cm
The maximum length of a signal path between the 14-pin JTAG or SBW connector on the Gang Splitter and the target device is 50 cm.
CAUTION
When an external power supply is used to power target devices, disconnect VCC from the targets to avoid power-supply conflicts that could potentially damage the MSP Gang Programmer and the target devices.
When target devices are powered from an external power supply, connect the VCC from the target device to Vextin (pin 4) on the JTAG, SBW, SWD, or BSL connectors. The MSP Gang Programmer uses this voltage to detect the presence of an external power supply.
Set the desired VCC level in the MSP Gang Programmer to the same voltage that powers the target device. This information is mandatory to provide correct I/O levels for the TMS, TCK, TDI, TDO, and RST signals. If the wrong VCC is provided, then the I/O levels between the programmer and target devices can be too low or too high, and communication can be unreliable.