mikroC
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Keypad Library
mikroC - C Compiler for Microchip PIC microcontrollers
mikroC provides library for working with 4x4 keypad; routines can also be used with 4x1, 4x2, or 4x3 keypad. Check the connection scheme at the end of the topic.
Library Routines
Keypad_Init
Keypad_Read
Keypad_Released
Keypad_Init
Prototype | void Keypad_Init(char *port); |
Description Initializes port to work with keypad. The function needs to be called before using other routines of the Keypad library.
Example Keypad_Init(&PORTB);
Keypad_Read
Prototype | unsigned Keypad_Read(void); |
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Returns | 1..16, depending on the key pressed, or 0 if no key is pressed. |
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Description | Checks if any key is pressed. Function returns 1 to 16, depending on the key pressed, or |
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Requires | Port needs to be appropriately initialized; see Keypad_Init. |
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Example | kp = Keypad_Read(); |
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MikroElektronika: Development tools - Books - Compilers | 193 | ||
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