CCS/MSP432P401R: MSP432P401R SPI BSL

Susan Yang

Part Number: MSP432P401R

Tool/software: Code Composer Studio

Hi team,

I am using MSP‐EXP432P401R LaunchPad to develop SPI  BSL application. The code to enter the BSL is as follows:

if (((input )& (BIT4)) == 0)
{
chkbsl = false;

MAP_Interrupt_disableMaster();
NVIC->ICER[0] = 0xFFFF;
NVIC->ICPR[0] = 0xFFFF;
NVIC->ICER[1] = 0xFFFF;
NVIC->ICPR[1] = 0xFFFF;


P1->OUT |= BIT0;
BSL_INVOKE(BSL_SPI_INTERFACE); // Call the BSL with given BSL parameters
} //BSL_UART_INTERFACE//BSL_SPI_INTERFACE

BSL Version Command : 0x80 0x01 0x00 0x19 0xE8 0x62

SPI communication:

P1.4 STE Active Low

P1.5 CLK CKPH = 0 CKPL = 1

P1.6 MOSI MSB

P1.7 MISO Driven by Dummy 0xFF

Channel 1 : STE

Channel 2 : CLK

Channle 3 : MOSI

Channel 4 : MISO

BSL Version Command

MISO didn't respond when I passed Dummy 0xFF

Please help.

BR,

SUASN

over 6 years ago

0 Sai Reddy over 6 years ago

TI__Mastermind 22580 points

Hello Susan,

According to the MSP432P4 BSL User's Guide, the interrupt priority bits should also be set to 0 before invoking the bootloader. Can you confirm that these bits are zero?

Susan Yang said:
BSL_INVOKE(BSL_SPI_INTERFACE); // Call the BSL with given BSL parameters

Also, can you send us the value of BSL_SPI_INTERFACE?

Thanks,

Sai

0 Legend Chang over 5 years ago in reply to Sai Reddy

Prodigy 130 points

hi Sai,

I add the yellow line in my code, but no response still.

the macro about BSL

#define BSL_AUTO_INTERFACE ((uint32_t)0x0000E0000) /*!< Auto detect interface */
#define BSL_UART_INTERFACE ((uint32_t)0x0000C0000) /*!< UART interface */
#define BSL_SPI_INTERFACE ((uint32_t)0x0000A0000) /*!< SPI interface */
#define BSL_I2C_INTERFACE ((uint32_t)0x000080000) /*!< I2C interface */

0 Sai Reddy over 5 years ago in reply to Legend Chang

TI__Mastermind 22580 points

Hello,

Did you refer to the following forum post: https://e2e.ti.com/support/microcontrollers/msp430/f/166/t/837057

The user claims that the suggestions in this post are working for him. If you haven't already tried it, can you try that and let me know the result?

Thanks,

Sai

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CCS/MSP432P401R: MSP432P401R SPI BSL