MSP430F5438A: BSL entry via UART

Ian Pratt

Hi,

I read this slau319c document relating to the BSL. However, I am still unsure whether special hardware configuration is needed to ensure BSL entry ? If you have a host connection hanging off a UART connection, can I enter the BSL purely using commands sent across the TX and RX lines or do I need to manipulate the JTAG pins as described in slau319c to ensure BSL entry ?

Regards,

Ian

over 6 years ago

0 Dennis Lehman over 6 years ago

TI__Guru 71216 points

Hello Ian,

Yes, you can invoke the bootloader from the HOST by sending a command (you decide how to do this) and have the application that is running on the MSP430 jump to the BSL location, 0x1000. You don't need to manipulate any of the JTAG pins.

Refer to section 1.3.2 in the SLAU319.

0 Ian Pratt over 6 years ago in reply to Dennis Lehman

Intellectual 880 points

Dennis,

Thanks for clarifying that. I thought it was best to check since we are at the hardware design stage.

Regards,

Ian

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MSP430F5438A: BSL entry via UART