MSP430FR6989: BSL Software Invocation Incorrect Header

Steffen Fuchs

Intellectual 685 points

Part Number: MSP430FR6989
Other Parts Discussed in Thread: MSP-EXP430FR6989, MSP-FET

Hi,

I´m using the MSP430FR6989 and i want to use the ROM Bootloader in combination with a software invoke.

1. I`ve invoked the BSL with this code snippet:

__disable_interrupt(); // disable interrupts
((void (*)())0x1000)(); // jump to BSL

2. After that I`ve used the BSL-Scripter with the provided sample script on a Windows 10 machine:

//
//Script example FRxx UART BSL
//
//Device : MSP430FR6989
//Comm Bridge: MSP-BSL Rocket
//
//Download blink application through
//UART BSL in FRAM device
//
LOG
MODE FRxx UART 9600 COM16
//gives wrong password to do mass erase
RX_PASSWORD pass32_wrong.txt
//
//add delay after giving wrong password
//because the device does not give
//any response after wrong password applied
//
DELAY 2000
RX_PASSWORD pass32_default.txt
RX_DATA_BLOCK blinkLED_FR6989.txt
CRC_CHECK 0x4400 0x0020
SET_PC 0x4400

3. The BSL acknowledges every command with 0x51 -> incorrect header. I`ve verified the transmission with a logic analyzer.

4. I`ve used the hardware interface in the user application with 9600 baud -> hardware is okay

5. the invoke of the bootloader seams to work because the BSL response with 0x51

What else can I´ve done wrong?

Thanks and best regards

Steffen

over 8 years ago

0 Steffen Fuchs over 8 years ago

Intellectual 685 points

I`ve tested the above mentioned procedure with the MSP-EXP430FR6989 with the same result:

0 Steffen Fuchs over 8 years ago in reply to Steffen Fuchs

Intellectual 685 points

I`ve found the solution:

MODE FRxx UART 9600 COM16 PARITY -> it seams that the BSL is configured with even parity always on. Maybe TI should update the examples...

My BSL-Version:

0 Ryan Brown1 over 8 years ago in reply to Steffen Fuchs

TI__Guru**** 221297 points

Steffen,

Thank you for providing the solution to your issue, I'll alert our BSL experts of this matter.

Regards,
Ryan

0 Fatmawati_Santosa over 8 years ago in reply to Steffen Fuchs

TI__Intellectual 2460 points

Hi Steffen,

Thank you for your input here. The BSL Scripter works without the parity. If you are using the MSP-FET or MSP-BSL "Rocket", these two tools generate the even parity. In case we are using other USB-serial bridge, we need to add PARITY on the MODE command, same as you implemented there. If I may ask, which tool you are connecting your PC and the target MSP?

0 Steffen Fuchs over 8 years ago in reply to Fatmawati_Santosa

Intellectual 685 points

Hi,

I´m using a CP2102 based USB-to-UART Bridge. This explains the problem but I didn`t find any hint in the examples or the documentation that you have to explicitly add PARITY to your script if your using anything else than the BSL Rocket or the MSP-FET. Could you add this information in the script, so nobody runs into this trap!

Thanks for your help!

Best regards

Steffen

0 Fatmawati_Santosa over 8 years ago in reply to Steffen Fuchs

TI__Intellectual 2460 points

Hi Steffen,

thank you for the great input. :) I will improve the example folder with PARITY use example for MSP430 devices. We do have the example but only for the MSP432 already.

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MSP430FR6989: BSL Software Invocation Incorrect Header