MSP430FR5848: What specific data needs to be sent to change the baud rate to 115200?

Scott K.

Prodigy 60 points

Part Number: MSP430FR5848

In the SLAU550Z user's guide, section 4.1.5.9 describes how to change the baud rate to 115200

Is this what I would need to send to accomplish this?

0x80020052061415

Does it need padding or anything else?

I am working with the MSP430FR5848. Thank you.

over 4 years ago

0 Eason Zhou over 4 years ago

TI__Mastermind 37130 points

You need this one: software-dl.ti.com/.../index.html, remember to choose eUSCI.

Eason

0 Scott K. over 4 years ago in reply to Eason Zhou

Prodigy 60 points

When I choose eUSCI and select 115200, I get all N/A's

MSP430 USCI/EUSCI UART Baud Rate Calculation

USCI/EUSCI: USCI EUSCI

Clock: 32.768K 1M 1.048M 4M 4.194M 8M 8.388M 12M 16M 16.777M 20M Custom Hz

Baud rate: 1200 2400 4800 9600 19200 38400 57600 115200 230400 460800 Custom bps

calculate

The recommended parameters for DriverLib are:

clockPrescalar:

firstModReg:

secondModReg:

overSampling:

0 Scott K. over 4 years ago in reply to Scott K.

Prodigy 60 points

Copy and paste doesn't work apparently. So, here is the screenshot.
MSP430 USCI_EUSCI UART Baudrate Calculator.pdf

0 Scott K. over 4 years ago in reply to Scott K.

Prodigy 60 points

Hi Eason, this didn't work because I get back all N/A's. Do you have another idea that I can try?

0 Eason Zhou over 4 years ago in reply to Scott K.

TI__Mastermind 37130 points

Got it. The UART clock you choose is 32.768kHz. You can't use this clock to get 115200 baud rate. Try with 16MHz.

0 Scott K. over 4 years ago in reply to Eason Zhou

Prodigy 60 points

Thanks Eason.

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MSP430FR5848: What specific data needs to be sent to change the baud rate to 115200?

MSP430 USCI/EUSCI UART Baud Rate Calculation