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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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CAP1214 датащи(PDF) 57 Page - Microchip Technology |
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CAP1214 датащи(HTML) 57 Page - Microchip Technology |
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57 / 107 page  Multiple Channel Capacitive Touch Sensor and LED Driver Datasheet SMSC CAP1214 57 Revision 1.0 (08-30-10) DATASHEET 6.19 Calibration Enable Register The Calibration Enable Register controls whether the indicated Capacitive Touch Sensor input is automatically re-calibrated. If a sensor is not enabled, the corresponding calibration enable bit is ignored. Bit 7- G_CEN - Enables all sensors in the group to be re-calibrated simultaneously. ‘0’ - None of the grouped channels are automatically re-calibrated. They can be re-calibrated manually by setting the G_CAL bit. ‘1’ (default) - All of the grouped channels are automatically re-calibrated as the CAP1214 samples. Bit 6 - S7_CEN - Enables the CS7 input to be re-calibrated automatically. ‘0’ - The CS7 input is not automatically re-calibrated. ‘1’ (default) - The CS7 input is automatically re-calibrated as the CAP1214 samples. Bit 5 - S6_CEN - Enables the CS6 input to be re-calibrated automatically. Bit 4 - S5_CEN - Enables the CS5 input to be re-calibrated automatically. Bit 3 - S4_CEN - Enables the CS4 input to be re-calibrated automatically. Bit 2 - S3_CEN - Enables the CS3 input to be re-calibrated automatically. Bit 1 - S2_CEN - Enables the CS2 input to be re-calibrated automatically. Bit 0 - S1_CEN - Enables the CS1 input to be re-calibrated automatically. 6.20 Calibration Activate Registers The Calibration Activate Registers force the respective sensors to be re-calibrated. When a bit is set, the corresponding Capacitive Touch Sensor will be re-calibrated and the bit will be automatically cleared once the re-calibration routine has finished. This calibration routine will update the internal analog controls and gain settings followed by a digital calibration to capture the base count for touch detection. During the re-calibration routine, the sensors will not detect a press for up to 600ms and the Sensor Base Count register values will be invalid. During this time, any press on the corresponding sensors will invalidate the re-calibration. Table 6.27 Calibration Enable Register ADDR R/W REGISTER B7 B6 B5 B4 B3 B2 B1 B0 DEFAULT 25h R/W Calibration Enable G_ CEN S7_ CEN S6_ CEN S5_ CEN S4_ CEN S3_ CEN S2_ CEN S1_ CEN FFh Table 6.28 Calibration Activate Registers ADDR R/W REGISTER B7 B6 B5 B4 B3 B2 B1 B0 DEFAULT 26h R/W Calibration Activate G_ CAL S7_ CAL S6_ CAL S5_ CAL S4_ CAL S3_ CAL S2_ CAL S1_ CAL 00h 46h R/W Grouped Sensor Calibration Activate S14_ CAL S13_ CAL S12_ CAL S11_ CAL S10_ CAL S9_ CAL S8_ CAL 00h |
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