MSP430F5528: USB BSL Source code examples

Christian Reinhold

Part Number: MSP430F5528
Other Parts Discussed in Thread: MSPBSL

Hi all,

I have to do some modificatios in the USB-BSL code concerning the usb XT2 clock for a MSP430F5528.

I tried to use the example sources (MSPBSL_CustomBSL430 1_00_12_00) with my IAR EWB430 compiler V 6.30.3.

All attemps fails with linking, generating code that does not fit into the given BSL area. (MSP430F552x_USB - example out of the box)

"Error[e104]: Failed to fit all segments into specified ranges. Problem discovered in segment CODE. Unable to place 46 block(s) (0x790 byte(s) total) in 0x726 byte(s) of memory. The problem occurred while processing the segment placement command "-P(CODE)CODE,CODE_ID=1008-17EF", where at the moment of placement the available memory ranges were "CODE:10ca-17ef"

README file shows :
Change Log:
------------------------------------------------
9/21/2015
- M. Groening -
Example projects updated to build with IAR Embedded Workbench 6.30.3
USB stack for BSL updated to 1.12 (USB PI 0x09)

Even with commenting out the clock selection part code is to large.

Anyone here with same problems or even a solutions?

Best Regards,

Christian

over 8 years ago

0 zrno soli over 8 years ago

Guru 34483 points

BTW, if you want to modify only XT2 value, you can export BSL binary from device, find default 4 / 8 / 12 / 24 constants with timer capture intervals, change one for your XT2, and write it back.

0 Ryan Brown1 over 8 years ago

TI__Guru**** 217307 points

Hi Christian,

So you are not even able to build the original project as downloaded? This sounds like a IAR compiler issue where your version is different from the original build. I suggest you try building with the IAR EWB natively used for the project.

Regards,
Ryan

0 Christian Reinhold over 8 years ago in reply to zrno soli

Prodigy 60 points

zrno soli
I use a 4 MHz external oscillator at XT2IN with ENableline at P5.3-, so i have to bypass internal XT2 oszillator

0 Christian Reinhold over 8 years ago in reply to Ryan Brown1

Prodigy 60 points

Yes I am using IAR Compiler 6.30.3 and i tried to compile with unchanged (out of the box) sources; with the mentioned result. In DEBUG mode it builds, but not in RELEASE mode to get some *.txt file

0 Ryan Brown1 over 8 years ago in reply to Christian Reinhold

TI__Guru**** 217307 points

There is no internal XT2 oscillator. By default, the USB BSL code is designed to detect the presence of 4, 8, 12, or 24 MHz on the XT2 pins and programs the PLL accordingly. www.ti.com/.../slaa452c.pdf

Regards,
Ryan

0 Ryan Brown1 over 8 years ago in reply to Christian Reinhold

TI__Guru**** 217307 points

The project was most likely only tested in debug mode so none of the release mode settings correctly optimize the program. I would suggest you build in debug mode or find the differences between the two in the project options. You can choose to output a .txt by going to Project Options -> Linker -> Output -> Output format.

Regards,
Ryan

0 Christian Reinhold over 8 years ago in reply to Ryan Brown1

Prodigy 60 points

Hello Ryan,

as I mentioned above I use in my application an external oscillator to provide an external clock signal (4 MHz) on XT2In pin. As descripted in slaa452, you need a crystal or resonator applied to XT2 IN and XT2 Out pins(using "internal" oscillator) or you use an external clock source and then bypass the internal oscillator. The original BSL has to be modified in that case.

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MSP430F5528: USB BSL Source code examples