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Problem with interfacing TSC2046 with ATmega16

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dhiman.das19

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I am interfacing TSC2046 with Atmega16 and sending the command word 0xDF( to measure X) and 0x9F( to measure Y) through SPI bus. I am using SCK as 2MHz. But I can not receive the SPI data properly according to Touch screen and sometime the busy signal remain high and receive 00 or invalid data. The PENIRQ signal is working. What is the duration of remain high of busy signal?Please help me regarding this issue.
 

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