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MadhaV

Question regarding Launchpad Programmer.

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As per my knowledge LaunchPad has inbuilt Debugger and Programmer. and it uses MSP430G2231.

 

Now My question is suppose i want to program other MSP series MCU. Can i do that by LaunchPad?

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Yes, you can.

 

If the device fits into the socket then you can program it easily.

 

If the device is on another circuit board and you have constructed a Spy BiWire interface then you can plug the LP into that SBW and program the target board easily.

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Yes, you can.

 

If the device fits into the socket then you can program it easily.

 

If the device is on another circuit board and you have constructed a Spy BiWire interface then you can plug the LP into that SBW and program the target board easily.

 

That means LaunchPad can program whole MSP430 series?

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Even better.

 

It means that the LP can program any MSP430 that has the Spy BiWire interface.

 

Little confused as i dont know about Spy BiWire Its something like PROTOCOL developed by TI.

 

Well in Simple, Suppose i want to program MSP430 MCU which is on another board, By Simple connecting all programming Pins of LaunchPad to that extra board can i program MCU?

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To quote Wikipedia:

 

Debugging interface

 

In common with other microcontroller vendors, TI has developed a two-wire debugging interface found on some of their MSP430 parts that can replace the larger JTAG interface. The eZ430 Development Tool contains a full USB-connected Flash Emulation Tool ("FET") for this new two-wire protocol, named "Spy-Bi-Wire" by TI. Spy-Bi-Wire was initially introduced on only the smallest devices in the 'F2xx family with limited number of I/O pins, such as the MSP430F20xx, MSP430F21x2, and MSP430F22x2. The support for Spy-Bi-Wire has been expanded with the introduction of the latest '5xx family, where all devices have support Spy-Bi-Wire interface in addition to JTAG.

 

The advantage of the Spy-Bi-Wire protocol is that it uses only two communication lines, one of which is the dedicated _RESET line. The JTAG interface on the lower pin count MSP430 parts is multiplexed with general purpose I/O lines. This makes it relatively difficult to debug circuits built around the small, low-I/O-budget chips, since the full 4-pin JTAG hardware will conflict with anything else connected to those I/O lines. This problem is alleviated with the Spy-Bi-Wire-capable chips, which are still compatible with the normal JTAG interface for backwards compatibility with the old development tools.

 

 

Take a look at this thread for a technical discussion on the topic.

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