- Category:
- SCM
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[Text]
- File Size:
- 1.13kb
- Update:
- 2008-10-13
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- Uploaded by:
- bjrbts
Description: 8051 Driver [profile] ADS7846/7843 chip suitable for use in 4-wire touch screen, it is through a standard SPI protocol and CPU communication, simple operation and high precision, when the touch screen is pressed (that is, touching the incident) are ADS7846 issued to the CPU interrupt request, CPU upon request, be delayed and then respond to its request, the purpose is to eliminate jitter sampling enables more accurate. If a sample is not accurate, you can try many times the last time check the results of sampling, whichever it is also aimed at the elimination of jitter.
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