MSP430FR5970: MSP430 Pinmux assignment and MCU Programming.

Anoop B

Part Number: MSP430FR5970
Other Parts Discussed in Thread: MSP-FET

Tool/software:

Hi Team,

I'm designing a VPX board that consists of the MSP430FR5970 MCU. I'm using MCU for the entire board power control and monitoring. And also for toggling some control signals that relate to VPX. By referring to hardware tools User's guide: I've created a schematic design. Attached the design PDF along with this. Kindly go through it, and please let me know if any modification is required for the mentioned usage. And on the software side, please provide a high-level brief on how the MCU can be programmed. What will be the current state of GPIOs once the MCU is powered up? Is there any internal pull-up or pull-down we can set? Also, is it possible to configure the IO as an open drain or push-pull (input/output)? and the IO level of all the pins. I believe it is 3.3V since I'm providing 3.3V to AVCC and DVCC. Please provide your guidance on the above matter at the earliest possible.

Regards,
Anoop

MSP430FR5970.pdf

2 months ago

0 Yuhao Zhao 2 months ago

TI__Genius 9300 points

For software, please refer to MSP430 MCUs Development Guide Book (Rev. A)

The IO are push-pull for output. You can configure internal pull-up/down resistor.

For usage of 430, here are some reference.

MSP430FR58xx, MSP430FR59xx, and MSP430FR6xx Family User's Guide (Rev. P)

MSP430FR597x(1),MSP430FR592x(1) MSP430FR587x(1) Mixed‑Signal Microcontrollers datasheet (Rev. C)

0 Anoop B 2 months ago in reply to Yuhao Zhao

Prodigy 20 points

Hi Yuhao,

Thank you for your reply. As hardware wise, any improvement should I do? I've done the schematic by referring to the hardware tools user's guide. I'm a hardware person. Can I get a high-level idea of how this MSP430 can be configured? While referring to the document, I got to know about Code Composer Studio and the MSP-FET programmer/debugger dongle. Does this MSP-FET is must to program the code to the MSP430 IC? or are there any alternative ways? Also, as you mentioned, "The IO are push-pull for output. " Can I configure the IO as an open drain? Is that possible?

Regards,
Anoop

0 Yuhao Zhao 2 months ago in reply to Anoop B

TI__Genius 9300 points

From my side the schematic looks good.

A debugger/programmer is necessary to program the code to the MCU. If you are not familiar with this device at all, maybe you can start with our EVM first, which contains the debugger on board.

MSP-EXP430FR6989 Development kit | TI.com

For IO, you can use input mode as open drain.

0 Anoop B 1 month ago in reply to Yuhao Zhao

Prodigy 20 points

Hi Yuhao,

So if I'm using the MSP-EXP430FR development kit, do I need a MSP MCU Programmer and Debugger to access the development kit? Or directly using USB OTG cable, can I connect to the PC and load configurations to the development kit? Also On the actual board, i'm planning to implement MSP430FR5970 MCU. To learn more regarding the MSP430FR5970 MCU MSP-EXP430FR development kit is a right choice? or any other development kit should I choose?

Regards,
Anoop

0 Yuhao Zhao 1 month ago in reply to Anoop B

TI__Genius 9300 points

There is an on-board debugger on development kit.

MSP430FR58xx, MSP430FR59xx, and MSP430FR6xx are the same family. All of them share the same development kit.

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MSP430FR5970: MSP430 Pinmux assignment and MCU Programming.