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LPC1549 SPI how to use two CS lines?

Question asked by Edriano Araujo on Jul 6, 2018
Latest reply on Jul 15, 2018 by Kerry Zhou

Hello.

I am doing a lib to control ILI9341 Display and in order to send command or data i need to control two CS lines.

I am able to define and assert two CS with no problem, but i am not able to deassert only one. even when i write TXDAta plus CTRL the second CS would not go low.

the only way i am able to deassert is sending EOT + EOF but in this case both lines would go high again.

 

Does any one knows how to do that using this microcontroller?

 

 

thank you very much.

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