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MSP430G2755: Configuring SPI

mitch3195
Prodigy 50 points

Part Number: MSP430G2755

Hi all, 

I am new to programming for the MSP430 family and am working on a project with some custom hardware. 

I wish to communicate between two MSP430G2755 MCUs using SPI. My problem is that SIMO and SOMI lines are swapped on the master side as seen below.

I have been trying to figure out if it is possible to configure the P3.5/UCA0RXD/UCA0SOMI port to be SIMO and the P3.4/UCA0TXD/UCA0SIMO port to be SOMI. 

Does anyone know if this is possible without rewiring the hardware?

Thank you for your time in advance! 

  • 0
    Guru 46710 points
    Are you saying that SOMI of master is connected to SOMI of slave? If so, then I am sorry to tell that G-series do not have any pin remapping, only option is rewiring of hardware. To avoid any misunderstanding - could you please show both sides of SPI connection?
  • 0 in reply to Ilmars
    Prodigy 50 points
    Thanks for your help Ilmars! It was a problem with the schematic, but pin remapping is what I would of had to do if it was an option on the G series.

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