MSP430F5438A: MSP430F5438A: BSL programming over Hardware UART with MSP430F5438A and MSP430-FET

Giacinto Luigi Cerone

Part Number: MSP430F5438A
Other Parts Discussed in Thread: MSP-FET

Hi all,

I'm trying to upload firmware using a modified version of the BSL that interfaces with an HW UART instead of the software one (based on the TA timer). After having modified the BSL firmware has suggested in this post (e2e.ti.com/.../246869) I was able to compile and upload the BSL FW using a MSP430-FET programmer connected to my device through Spi-by-wire interface.

Then, I modified the current version of my firmware in order to jump at the BSL entry point in the memory adding the following lines of code to the main.c file:

//BSL invocation

__disable_interrupt(); // disable interrupts

((void ( * )())0x1000)(); // jump to BSL

I made the following HW connections between the MSP430-FET and my device. I have intentionally discarded the TEST/RESET signals because I invoke the BSL from firmware. Is this right?

MSP430-FET                            MY DEVICE

VCC                                          VCC

GND                                          GND

UART_TXD (pin 12)                  UART_RXD

UART_RXD (pin 14)                 UART_TXD

With these connections, I started the BSL-scripter software and launched the following default script:

//
//Script example 543x family UART BSL
//
//Download blink led application
//to 543x family device through uart bsl
//
//It was tested using Launchpad BSL
//application as the communication bridge
//
LOG
MODE 543x_family UART COM4
VERBOSE
//gives the wrong password to do
//mass eraseof the memory
RX_PASSWORD .\pass16_wrong.txt
RX_PASSWORD .\pass16_default.txt
RX_DATA_BLOCK .\blinkLED_f5438.txt
CRC_CHECK 0x5C00 0x0020 0xAF15
CRC_CHECK 0xffd2 0x00D0 0xC1EA
SET_PC 0x5c00

At the end, I was not able to upload any script through the BSL, receiving a missing ACK message for each line of the BSL-scripter script as showed into the attached image.

Any suggestions on what can be wrong in my setup?

Thank you in advance for the reply,

GLC

over 4 years ago

0 Winter Yu over 4 years ago

TI__Genius 12315 points

Hello,

The UART connections should be:

UART_TXD (pin 12) UART_TXD

UART_RXD (pin 14) UART_RXD

Please see BSL-Scripter User Guide for more details.

0 Giacinto Luigi Cerone over 4 years ago in reply to Winter Yu

Intellectual 400 points

Hi Winter,

thanks for the help.

I connected the pins between MSP430-FET and my device as you indicated (I was wrong before writing the post) and the result didn't change. I did not connected the TEST and RESET pins because I invoke the BSL from firmware. Is this right?

thank you in advance, best regards,

GLC

0 Giacinto Luigi Cerone over 4 years ago in reply to Giacinto Luigi Cerone

Intellectual 400 points

Any news?

thank you in advance, best regards,

GLC

0 Winter Yu over 4 years ago in reply to Giacinto Luigi Cerone

TI__Genius 12315 points

What's the script did you use? And did you give a right COM port number? Could you use the example script?

Below is an example, you need replace the COM5 with your actual com port.

//
//Script example 543x family UART BSL
//
//Download blink led application
//to 543x family device through uart bsl
//
//It was tested using Launchpad BSL 
//application as the communication bridge
//
LOG
MODE 543x_family UART COM5
//gives the wrong password to do
//mass eraseof the memory
RX_PASSWORD .\pass16_wrong.txt
RX_PASSWORD .\pass16_default.txt
RX_DATA_BLOCK .\blinkLED_f5438.txt
CRC_CHECK 0x5C00 0x0020 0xAF15
CRC_CHECK 0xffd2 0x00D0 0xC1EA
SET_PC 0x5c00

0 Giacinto Luigi Cerone over 4 years ago in reply to Winter Yu

Intellectual 400 points

Hi winter,

I indicated the used script (taken from the script you cited) in my previous post. Here is the script I use that is almost identical to what you cited.

Any other suggestion? Is it possible to debug the firmware bootloader while using the same MSP-FET programmer to upload firmware? Is it possible to avoid the use of the TEST/RESET pins entering in the BSL memory section by firmware?

thank you in advance, best regards,

GLC

0 Winter Yu over 4 years ago in reply to Giacinto Luigi Cerone

TI__Genius 12315 points

Hi GLC,

It's possible to debug the firmware bootloader. Because the bootloader code is in ROM. The bootloader supports invoking from application without TEST/RSET.

Did you see errors using TEST/RESET to invoke the BSL?

And could you send the command package directly using a serial tool, not MSP-FET and BSL-Scripter?

0 Winter Yu over 4 years ago in reply to Winter Yu

TI__Genius 12315 points

Hi GLC,

Any progress?

**Attention** This is a public forum

MSP low-power microcontrollers

MSP low-power microcontroller forum

MSP430F5438A: MSP430F5438A: BSL programming over Hardware UART with MSP430F5438A and MSP430-FET