MSP430FR2633: Clarification on Programming MSP430FR2633 Without External Programmer

Hi Sk002,
Please send your schematics to your local sales representative so my team can review it.

Best Regards,

Diego Abad

In device datasheet, section 6.5 BSL there are is two tables with pins related for using factory preloaded UART and I2C BSL for download target device firmware. If this pins are available in yor project than (UART) BSL can be used with any USB 2 UART chip as hardware and open source TI BSL Scripter (with script examples for FRAM) on PC side (any OS).

sustburbia.blogspot.com/.../the-great-msp430-bootloader-swindle.html

HI,

I tried flashing using the UART BSL, but I am getting continuous [ACK_ERROR_MESSAGE] Unknown ACK value errors.
The BSL Scripter starts, but every command fails — wrong password, default password, data block write, CRC check — everything shows the same ACK error.

This usually indicates that the MSP430 is not entering BSL mode properly or the UART interface is not initialized correctly.

For your reference:

• I am using a USB-to-UART FTDI converter for TX/RX.

• The RST and TEST pin sequence is controlled using external MCU GPIOs to force entry into BSL mode.

Below is the log:

Input file script is : C:/ti/BSL-Scripter/script_FRxx_uart.txt

//
//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 COM6
//gives wrong password to do mass erase
RX_PASSWORD pass32_wrong.txt
Read Txt File : C:\ti\BSL-Scripter\pass32_wrong.txt
[ACK_ERROR_MESSAGE]Unknown ACK value!
//
//add delay after giving wrong password
//because the device does not give
//any response after wrong password applied
//
DELAY 2000
Delay 2000 ms
RX_PASSWORD pass32_default.txt
Read Txt File : C:\ti\BSL-Scripter\pass32_default.txt
[ACK_ERROR_MESSAGE]Unknown ACK value!
RX_DATA_BLOCK blinkLED_FR6989.txt
Read Txt File : C:\ti\BSL-Scripter\blinkLED_FR6989.txt
[ACK_ERROR_MESSAGE]Unknown ACK value!
[ACK_ERROR_MESSAGE]Unknown ACK value!
[ACK_ERROR_MESSAGE]Unknown ACK value!
Time elapsed of writing 262 bytes : 3.223 seconds
Speed of writing data :0.07937(kB/s)
CRC_CHECK 0x4400 0x0020
[ACK_ERROR_MESSAGE]Unknown ACK value!
SET_PC 0x4400

C:\ti\BSL-Scripter>

If there are known issues using FTDI + manual GPIO control, please suggest any alternative hardware that is more reliable for flashing via BSL ( MSP-BSL Rocket, MSP-FET, or any other recommended module).

Hi Sk002,

Here are the comments from the schematic review

I. We recommend a 10uF capacitor value for normal operation for VDD
II. We recommend a 10nF decoupling capacitor for RST
III. If you need to use the BSL, you'll need to follow the Spi-By Wire sequence, which means you need to use the TEST pin. Please follow the MSP430 Hardware Guide and datasheet for reference.
IV. Please double-check your capacitance load in the crystal using the MSP430 Crystal guide.

2 & 3. BSL can be used to program the device, and JTAG can be used as well. If you use the CAPTIVATE software or GUI, you will need either I2C or BSL and the programmer (CAPTIVATE-PGMR). 

Best Regards,

Diego Abad

Maybe G2LP hardware based BSL (https://www.ti.com/lit/an/slaa535a/slaa535a.pdf) can help to clarify BSL entry sequence for FRAM devices.