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Adding initial matrix configuration structure

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- Uses strobe setup from MatrixARM
- New mapping for ADC sense
- Initial ADC setup code (not optimized or configurable yet)
This commit is contained in:
Jacob Alexander 2016-04-17 16:03:10 -07:00
parent 39dbb85c1a
commit 271b0af9b9
4 changed files with 293 additions and 3 deletions
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137
Scan/CapSense/matrix_scan.h
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@ -27,8 +27,145 @@
// ----- Enums -----
// Freescale MK20s have GPIO ports A...E
typedef enum Port {
Port_A = 0,
Port_B = 1,
Port_C = 2,
Port_D = 3,
Port_E = 4,
} Port;
// Each port has a possible 32 pins
typedef enum Pin {
Pin_0 = 0,
Pin_1 = 1,
Pin_2 = 2,
Pin_3 = 3,
Pin_4 = 4,
Pin_5 = 5,
Pin_6 = 6,
Pin_7 = 7,
Pin_8 = 8,
Pin_9 = 9,
Pin_10 = 10,
Pin_11 = 11,
Pin_12 = 12,
Pin_13 = 13,
Pin_14 = 14,
Pin_15 = 15,
Pin_16 = 16,
Pin_17 = 17,
Pin_18 = 18,
Pin_19 = 19,
Pin_20 = 20,
Pin_21 = 21,
Pin_22 = 22,
Pin_23 = 23,
Pin_24 = 24,
Pin_25 = 25,
Pin_26 = 26,
Pin_27 = 27,
Pin_28 = 28,
Pin_29 = 29,
Pin_30 = 30,
Pin_31 = 31,
} Pin;
// Depending on the microcontroller, it can have 1 or more ADCs
typedef enum ADC {
#if defined(_mk20dx128_) || defined(_mk20dx128vlf5_)
ADC_0 = 0,
#elif defined(_mk20dx256_) || defined(_mk20dx256vlh7_)
ADC_0 = 0,
ADC_1 = 1,
#endif
} ADC;
// ADC Register offset map
unsigned int *ADC_reg_offset_map[] = {
#if defined(_mk20dx128_) || defined(_mk20dx128vlf5_)
(unsigned int*)(&ADC0_SC1A),
#elif defined(_mk20dx256_) || defined(_mk20dx256vlh7_)
(unsigned int*)(&ADC0_SC1A),
(unsigned int*)(&ADC1_SC1A),
#endif
};
// Each ADC has a possible 32 channels
typedef enum Channel {
Channel_0 = 0,
Channel_1 = 1,
Channel_2 = 2,
Channel_3 = 3,
Channel_4 = 4,
Channel_5 = 5,
Channel_6 = 6,
Channel_7 = 7,
Channel_8 = 8,
Channel_9 = 9,
Channel_10 = 10,
Channel_11 = 11,
Channel_12 = 12,
Channel_13 = 13,
Channel_14 = 14,
Channel_15 = 15,
Channel_16 = 16,
Channel_17 = 17,
Channel_18 = 18,
Channel_19 = 19,
Channel_20 = 20,
Channel_21 = 21,
Channel_22 = 22,
Channel_23 = 23,
Channel_24 = 24,
Channel_25 = 25,
Channel_26 = 26,
Channel_27 = 27,
Channel_28 = 28,
Channel_29 = 29,
Channel_30 = 30,
Channel_31 = 31,
} Channel;
// Type of pin
typedef enum Type {
Type_StrobeOn,
Type_StrobeOff,
Type_StrobeSetup,
Type_Sense,
Type_SenseSetup,
} Type;
// Keypress States
typedef enum KeyPosition {
KeyState_Off = 0,
KeyState_Press = 1,
KeyState_Hold = 2,
KeyState_Release = 3,
KeyState_Invalid,
} KeyPosition;
// ----- Structs -----
// Struct container for defining Strobe pins
typedef struct GPIO_Pin {
Port port;
Pin pin;
} GPIO_Pin;
// Struct container for defining Sense pins
typedef struct ADC_Pin {
Port port;
Pin pin;
ADC adc;
Channel ch;
} ADC_Pin;
// ----- Functions -----
void Matrix_setup();