// tdm.c
//
// time division multiplexing

/*  Copyright (C) 2017 H.Poetzl
**	
**  This program is free software: you can redistribute it and/or
**  modify it under the terms of the GNU General Public License
**  as published by the Free Software Foundation, either version
**  2 of the License, or (at your option) any later version.
*/

// ------------------------------------------------
// configuration

#define NO_BIT_DEFINES
#include <pic16f18344.h>
#include <stdint.h>

#define CONFIG(k, n) __code static char __at _ ## k __ ## k = n

CONFIG(CONFIG1,  _FEXTOSC_OFF & _RSTOSC_HFINT1 & _CSWEN_ON & _CLKOUTEN_OFF);
CONFIG(CONFIG2,  _MCLRE_ON & _WDTE_OFF & _PPS1WAY_OFF);

#include "tear_leds.h"


// --------------------------------------------------
// and our main entry point

void main()
{
    // all digital
    ANSELA = 0;
    ANSELB = 0;
    ANSELC = 0;

    // all input
    TRISA = 0xFF;
    TRISB = 0xFF;
    TRISC = 0xFF;

    // all one
    LATA = 0xFF;
    LATB = 0xFF;
    LATC = 0xFF;

    // all open drain
    ODCONA = 0xFF;
    ODCONB = 0xFF;
    ODCONC = 0xFF;

    __asm
	BANKSEL TRISA
	BCF LED0T,LED0
	BCF LED1T,LED1
	BCF LED2T,LED2
	BCF LED3T,LED3
	BCF LED4T,LED4
	BCF LED5T,LED5
	BCF LED6T,LED6
	BCF LED7T,LED7
	BCF LED8T,LED8
	BCF LED9T,LED9
	BCF LEDAT,LEDA
	BCF LEDBT,LEDB
	BCF LEDCT,LEDC
	BCF LEDDT,LEDD
	BCF LEDET,LEDE
	BCF LEDFT,LEDF
    __endasm;

    OSCCON3bits.CSWHOLD = 0;
    OSCCON1bits.NDIV = 1;

    PMD0 = 0xC3;	/* All */
    PMD1 = 0xFF;	/* All */
    PMD2 = 0x66;	/* All */
    PMD3 = 0xFF;	/* All */
    PMD4 = 0x22;	/* All */
    PMD5 = 0x1F;	/* All */

    while (1) {
	__asm
	    BANKSEL LATA
	    BCF LED0L,LED0
	    BSF LED0L,LED0

	    BCF LED1L,LED1
	    NOP
	    BSF LED1L,LED1

	    BCF LED2L,LED2
	    NOP
	    NOP
	    BSF LED2L,LED2

	    BCF LED3L,LED3
	    NOP
	    NOP
	    NOP
	    BSF LED3L,LED3

	    BCF LED4L,LED4
	    NOP
	    NOP
	    NOP
	    NOP
	    BSF LED4L,LED4

	    BCF LED5L,LED5
	    NOP
	    NOP
	    NOP
	    NOP
	    NOP
	    BSF LED5L,LED5

	    BCF LED6L,LED6
	    NOP
	    NOP
	    NOP
	    NOP
	    NOP
	    NOP
	    BSF LED6L,LED6

	    BCF LED7L,LED7
	    NOP
	    NOP
	    NOP
	    NOP
	    NOP
	    NOP
	    NOP
	    BSF LED7L,LED7

	    BCF LED8L,LED8
	    NOP
	    NOP
	    NOP
	    NOP
	    NOP
	    NOP
	    NOP
	    NOP
	    BSF LED8L,LED8

	    BCF LED9L,LED9
	    NOP
	    NOP
	    NOP
	    NOP
	    NOP
	    NOP
	    NOP
	    NOP
	    NOP
	    BSF LED9L,LED9

	    BCF LEDAL,LEDA
	    NOP
	    NOP
	    NOP
	    NOP
	    NOP
	    NOP
	    NOP
	    NOP
	    NOP
	    NOP
	    BSF LEDAL,LEDA

	    BCF LEDBL,LEDB
	    NOP
	    NOP
	    NOP
	    NOP
	    NOP
	    NOP
	    NOP
	    NOP
	    NOP
	    NOP
	    NOP
	    BSF LEDBL,LEDB

	    BCF LEDCL,LEDC
	    NOP
	    NOP
	    NOP
	    NOP
	    NOP
	    NOP
	    NOP
	    NOP
	    NOP
	    NOP
	    NOP
	    NOP
	    BSF LEDCL,LEDC
	__endasm;
    }
}