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  • Resolved

TSC2046: lose data when move pencil quickly

Genius 9435 points

Replies: 4

Views: 36

Part Number: TSC2046

Hi,

my customer is using TSC2046 for their system to interface with their touch panel.

When they move the pencil on the touch panel quicky(<1s) from left to right, the X position data will be lost for the left 1/3 and right 1/3, only the 1/3 in the middle will be recorded.

If we move the pencil on the touch panel slowly, the X position data will be recorded correctly.

The same applies to Y position.

Since MCU will record the X position and Y position and then draw line on the screen, if we move pencil too fast from left to right, only 1/3 in the middle will be displayed on the screen.

What may be the cause and how could we solve the problem?

  • Hello Howard,

    Can you please share a schematic, some scope shots of the communication lines (CS, DIN, DOUT, DCLK, etc) and the X and Y lines?

    Regards,

    Aaron

  • In reply to Aaron Estrada51:

    Hello Howard,

    I see that you marked the thread as "Resolved". Did the customer find a solution? If so, can you please post it in case others come across a similar problem?

    Regards,

    Aaron

  • In reply to Aaron Estrada51:

    We changed the sampling rate and the problem is solved.

  • In reply to Howard Zou:

    Howard,

    Thanks for posting the solution. I will now close this thread. Thank you. 

    Regards,

    Aaron

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