MSP432E401Y: ROM bootloader

Lorenzo Marcantonio

Part Number: MSP432E401Y
So, if I get it correctly there can be two SLAU746A bootloaders… the ROM one at 0x0100.0000 invoked by a pin under BOOTCFG control (or when the flash is unprogrammed) and an optional user one that can be user customized and flashed at 0x0000.0000 as a 'prologue' user application. Is is that correct? How does the ROM loader choose the interface? does it listen to UART0/SSPI0/I2C0 at the same time? In that case external hardware must take in account that these 3 peripherals are configured in that way if the ROM loader is invoked, right?

over 5 years ago

0 Alexis Crandall20 over 5 years ago

TI__Genius 15590 points

Hi Lorenzo,

I will verify this and get back to you by the end of the week.

Thanks,

Alexis

0 Alexis Crandall20 over 5 years ago in reply to Alexis Crandall20

TI__Genius 15590 points

Hi Lorenzo,

Yes that is correct. The bootloader can also be invoked during an application by jumping to the ROM or the custom bootloader. The bootloaders also include USB and Ethernet. http://www.ti.com/tool/MSPBSL is a good site and if you look at the BSL scripter tool you can see examples. Yes, the bootloader is listening. Yes, external hardware must be provided, so for example pullups on the i2c lines.

Hope this helps!

Thanks,

Alexis

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MSP432E401Y: ROM bootloader