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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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STM32F334X4 датащи(PDF) 29 Page - STMicroelectronics |
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STM32F334X4 датащи(HTML) 29 Page - STMicroelectronics |
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29 / 115 page  DocID025409 Rev 5 29/115 STM32F334x4 STM32F334x6 STM32F334x8 Functional overview 43 charging the electrode capacitance and then transferring a part of the accumulated charges into a sampling capacitor until the voltage across this capacitor has reached a specific threshold. To limit the CPU bandwidth usage this acquisition is directly managed by the hardware touch sensing controller and only requires few external components to operate. The touch sensing controller is fully supported by the STMTouch touch sensing firmware library which is free to use and allows touch sensing functionality to be implemented reliably in the end application. Table 10. Capacitive sensing GPIOs available on STM32F334x4/6/8 devices Group Capacitive sensing group name Pin name Group Capacitive sensing group name Pin name 1 TSC_G1_IO1 PA0 4 TSC_G4_IO1 PA9 TSC_G1_IO2 PA1 TSC_G4_IO2 PA10 TSC_G1_IO3 PA2 TSC_G4_IO3 PA13 TSC_G1_IO4 PA3 TSC_G4_IO4 PA14 2 TSC_G2_IO1 PA4 5 TSC_G5_IO1 PB3 TSC_G2_IO2 PA5 TSC_G5_IO2 PB4 TSC_G2_IO3 PA6 TSC_G5_IO3 PB6 TSC_G2_IO4 PA7 TSC_G5_IO4 PB7 3 TSC_G3_IO1 PC5 6 TSC_G6_IO1 PB11 TSC_G3_IO2 PB0 TSC_G6_IO2 PB12 TSC_G3_IO3 PB1 TSC_G6_IO3 PB13 TSC_G3_IO1 PC5 TSC_G6_IO4 PB14 -- - - - Table 11. No. of capacitive sensing channels available on STM32F334x4/6/8 devices Analog I/O group Number of capacitive sensing channels STM32F334xRx STM32F334xCx STM32F334xKx G1 3 3 3 G2 3 3 3 G3 3 2 2 G4 3 3 3 G5 3 3 3 G6 3 3 0 Number of capacitive sensing channels 18 17 14 |
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