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MSP430FR6972: MSP430FR6972

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Part Number: MSP430FR6972

Tool/software:

Hi 

I'm using MSP430FR6972, I want to using the SPI , Uart and I2C, afer the register configuration 

example :

SPI2_UCA0

                       bis.w        #UCSWRST,UCA0CTLW0 ;
                       mov.w       #(UCSWRST+UCMSB+UCMST+UCSYNC+UCSSEL1+UCSSEL0),UCA0CTLW0 
                       mov.w      #16,UCA0BRW ;* CLOCK DIVISO 2 VA A 500kHz SMCLK èè a 8mHz */
                       bic.b         #(BIT4+BIT3),P4SEL0 ;* disable uart  Port 4
                       bic.b         #(BIT0+BIT1+BIT2),P2SEL1  
                      bis.b           #(BIT0+BIT1+BIT2),P2SEL0 ;* enable SPI Port 2 

                      bic.w           UCSWRST,UCA0CTLW0

SPI2_UCB1

                         bis.w   #UCSWRST,UCB1CTLW0 
                         mov.w #(UCSWRST+UCMSB+UCMST+UCSYNC+UCSSEL1+UCSSEL0),UCB1CTLW0 
                        mov.w  #16,UCB1BRW
                        bic.b    #(BIT1+BIT2),P3SEL0 ;* disable  I2C on Port 3 
                        bclr.b   #(BIT5+BIT6+BIT7),P4SEL0 ; 
                        bclr_b  #(BIT5+BIT6+BIT7),P4SEL1 ;* enable spi  port 4 
                        bclr.w  #UCSWRST,UCB1CTLW0 

 I have problem with SPI_UCA0, do not have any signal on the output pin whne is set like SPI

if I'm using this port like I/O pin work properly 

, the SPI_UCB1 work properly without any problem, 

for the SPI_UCA0 there is some bit in the hide Register to enable the SPI ? I have try to check every where 

but did't find anythings 

Luigi 

have problem only with port 2, there is some special bit on sonme hide register ? 


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