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MSP430G2553 SPI SLAVE RX Interrupt triggers without SPISIMO connected

Hamid Khalessi
Intellectual 345 points

Other Parts Discussed in Thread: MSP430G2553

Hi,

I have connected and setup two MSP430G2553 , one as a Master the other as a slave, both configured in 3 wire mode (no CS/STE line used). The connection seems to work when all 3-wires connected.But when I disconnect the SPISIMO line. I still see the RX ISR triggers on the slave side.Please advise.

Regards,

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