0,0 → 1,129 |
// <editor-fold defaultstate="collapsed" desc="Configuration Bits"> |
// PIC16F1825 Configuration Bit Settings |
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// CONFIG1 |
#pragma config FOSC = INTOSC // Oscillator Selection (INTOSC oscillator: I/O function on CLKIN pin) |
#pragma config WDTE = OFF // Watchdog Timer Enable (WDT software controlled) |
#pragma config PWRTE = OFF // Power-up Timer Enable (PWRT disabled) |
#pragma config MCLRE = ON // MCLR Pin Function Select (MCLR/VPP pin function is digital input) |
#pragma config CP = OFF // Flash Program Memory Code Protection (Program memory code protection is disabled) |
#pragma config CPD = OFF // Data Memory Code Protection (Data memory code protection is disabled) |
#pragma config BOREN = ON // Brown-out Reset Enable (Brown-out Reset enabled) |
#pragma config CLKOUTEN = OFF // Clock Out Enable (CLKOUT function is disabled. I/O or oscillator function on the CLKOUT pin) |
#pragma config IESO = ON // Internal/External Switchover (Internal/External Switchover mode is enabled) |
#pragma config FCMEN = ON // Fail-Safe Clock Monitor Enable (Fail-Safe Clock Monitor is enabled) |
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// CONFIG2 |
#pragma config WRT = OFF // Flash Memory Self-Write Protection (Write protection off) |
#pragma config PLLEN = ON // PLL Enable (4x PLL enabled) |
#pragma config STVREN = ON // Stack Overflow/Underflow Reset Enable (Stack Overflow or Underflow will cause a Reset) |
#pragma config BORV = LO // Brown-out Reset Voltage Selection (Brown-out Reset Voltage (Vbor), low trip point selected.) |
#pragma config LVP = OFF // Low-Voltage Programming Enable (High-voltage on MCLR/VPP must be used for programming) |
// </editor-fold> |
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#include "defines.h" |
#include "INTERRUPTS.h" |
#include "I2C1.h" |
#include "ADC.h" |
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uint8_t btn_values[6]; |
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void IO_Init(void) { |
ANSELA = 0x0; |
ANSELB = 0x0; |
ANSELC = 0x0; |
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WPUA = 0x0; |
WPUB = 0x0; |
WPUC = 0x0; |
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OPTION_REGbits.nWPUEN = 0; |
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I2C_1_CLK_TRIS = 1; |
I2C_1_DAT_TRIS = 1; |
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ANALOG_L_BTN_TRIS = 1; |
ANALOG_R_BTN_TRIS = 1; |
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ANALOG_L_BTN_WPU = 1; |
ANALOG_R_BTN_WPU = 1; |
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ANALOG_L_X_TRIS = 1; |
ANALOG_L_Y_TRIS = 1; |
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ANALOG_R_X_TRIS = 1; |
ANALOG_R_Y_TRIS = 1; |
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ANALOG_L_X_ANSEL = 1; |
ANALOG_L_Y_ANSEL = 1; |
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ANALOG_R_X_ANSEL = 1; |
ANALOG_R_Y_ANSEL = 1; |
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LED_A_LAT = 0; |
LED_B_LAT = 0; |
LED_A_TRIS = 0; |
LED_B_TRIS = 0; |
} |
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void LED_On(void) { |
LED_A_LAT = 1; |
} |
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void LED_Off(void) { |
LED_A_LAT = 0; |
} |
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int main(void) { |
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// Set internal oscillator speed to 32MHz |
OSCCONbits.SPLLEN = 1; // 4x PLL enable (overwritten by config bits) |
OSCCONbits.IRCF = 0xE; // Base frequency @ 8MHz |
OSCCONbits.SCS = 0b00; // System clock determined by config bits |
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// Initialize I/O |
IO_Init(); |
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// Delay a bit to allow I2C lines to stabilize |
__delay_ms(10); |
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// Initialize I2C1 in slave mode |
I2C1_DATA i2c1_data; |
I2C1_Init(&i2c1_data); |
I2C1_Configure_Slave(I2C1_SLAVE_ADDR); |
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// Initialize ADC |
ADC_Init(); |
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// Initialize interrupts |
Interrupt_Init(); |
Interrupt_Enable(); |
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LED_On(); |
__delay_ms(1000); |
LED_Off(); |
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uint8_t buffer[8]; |
uint8_t length, result; |
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while (1) { |
btn_values[0] = ADC_Read(ANALOG_REF_CH) >> 2; // 0xFF |
btn_values[1] = ADC_Read(ANALOG_L_X_CH) >> 2; // 0x7E (-1) |
btn_values[2] = ADC_Read(ANALOG_L_Y_CH) >> 2; // 0x7C (-3) |
btn_values[3] = ADC_Read(ANALOG_R_X_CH) >> 2; // 0x81 (+2) |
btn_values[4] = ADC_Read(ANALOG_R_Y_CH) >> 2; // 0x7D (-2) |
btn_values[5] = (ANALOG_L_BTN_PORT << 1) | ANALOG_R_BTN_PORT; |
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// // Check if an I2C message was received |
// result = I2C1_Get_Status(); |
// if (result) { |
// length = I2C1_Read_Buffer(buffer); |
// if (length == 2 && buffer[0] == CMD_SET_LEDS) { |
// if (buffer[1]) |
// LED_On(); |
// else |
// LED_Off(); |
// } |
// } |
} |
} |