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STM8L152K4T6/STM8L152K6T6 详细说明 |
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ystem configuration controller and routing interfaceThe system configuration controller provides the capability to remap some alternatefunctions on different I/O ports. TIM4 and ADC1 DMA channels can also be remapped.The highly flexible routing interface controls the routing of internal analog signals to ADC1,COMP1, COMP2, and the internal reference voltage VREFINT. It also provides a set ofregisters for efficiently managing the charge transfer acquisition sequence (Section 3.11:Touch sensing).3.11Touch sensingLow-density STM8L151x2/3 devices provide a simple solution for adding capacitive sensingfunctionality to any application. Capacitive sensing technology is able to detect fingerpresence near an electrode which is protected from direct touch by a dielectric (example,glass, plastic). The capacitive variation introduced by a finger (or any conductive object) ismeasured using a proven implementation based on a surface charge transfer acquisitionprinciple. It consists of charging the electrode capacitance and then transferring a part of theaccumulated charges into a sampling capacitor until the voltage across this capacitor hasreached a specific threshold. In low-density STM8L15xxx devices, the acquisition sequenceis managed either by software or by hardware and it involves analog I/O groups, the routinginterface, and timers.Reliable touch sensing solutions can be quickly and easilyimplemented using the free STM8 Touch Sensing Library.3.12TimersLow-density STM8L151x2/3devices contain two 16-bit general purpose timers (TIM2 andTIM3) and one 8-bit basic timer (TIM4).All the timers can be served by DMA1.Table 2 compares the features of the advanced control, general-purpose and basic timers
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产品名称：STM8L152K4T6/STM8L152K6T6 |
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