Vandalized the example even more
This commit is contained in:
452
example.c
452
example.c
@@ -3,362 +3,324 @@
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//*** ***
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//*** K O P Y T O V1.1 ***
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//*** ***
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//*** vandalizoval Michal Procházka ***
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//*** vandalized by Michal Procházka ***
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//*** ***
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//**********************************************************************
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//**********************************************************************
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#include <8051.h>
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#include <at89c55.h>
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#include <stdio.h>
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#include <stdint.h>
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#define TickPerSec 100
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#define NPER (0x10000-(20000000L/12/TickPerSec))
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#define TICK_RATE 100
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#define NPER (0x10000 - (20000000 / 12 / TICK_RATE))
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// Definice vstupu a vystupu
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#define _P0 0x80
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#define _P1 0x90
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#define _P2 0xa0
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#define _P3 0xb0
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#define _P4 0xc0
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// Missing port definitions
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__sbit __at (0xC4) P4_4;
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__sbit __at (0xC3) P4_3;
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__sbit __at (0xC2) P4_2;
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__sbit __at (0xC1) P4_1;
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__sbit __at (0xC0) P4_0;
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#define Tlac1 P3_2
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#define Tlac2 P3_3
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#define Buzzer P3_6
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#define LED1 P4_2
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#define LED2 P4_3
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#define LED3 P4_4
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// I/O definitions
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#define BUTTON_1 P3_2
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#define BUTTON_2 P3_3
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#define PIEZO P3_6
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#define LED_RED P4_2
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#define LED_YELLOW P4_3
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#define LED_GREEN P4_4
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#define POT P1_0
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#define SMT P1_1
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#define ZAR P1_2
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#define LB_Data P1_3
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#define LB_SCK P1_4
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#define LB_SCL P1_5
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#define LB_RCK P1_6
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#define LB_OE P1_7
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#define THERM P1_1
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#define BULB P1_2
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// TIMER se odecita v casovem preruseni
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volatile uint16_t TIMER;
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uint8_t LCD_Pos;
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/*************************************************************************\
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* LCD - Liquid Crystal Display *
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*-------------------------------------------------------------------------*
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* Description : Header file for programming of LCD display based on *
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* HITACHI controller HD44780. *
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*-------------------------------------------------------------------------*
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* Author : Ceba & www.HW.cz Email : ceba@hw.cz *
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* Developed : 06.02.2002 Last Update : 12.04.2003 *
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* Version : 0.1.0 *
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*-------------------------------------------------------------------------*
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* Compiler : ANY Version: ANY *
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* Source file : LCD.H *
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*-------------------------------------------------------------------------*
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* Target system : Charon II. - ATmega128, Quartz 14.7456 MHz *
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* LCD SC1602A - 4.bit mode *
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*-------------------------------------------------------------------------*
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* Instruction D7 D6 D5 D4 D3 D2 D1 D0 *
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* ============================================== *
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* Display clear 0 0 0 0 0 0 0 1 *
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* Cursor home 0 0 0 0 0 0 1 * *
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* Entry Mode Set 0 0 0 0 0 1 I/D S *
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* Display On/Off 0 0 0 0 1 D C B *
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* Curs/Disp shift 0 0 0 1 S/C R/L * * *
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* Function Set 0 0 1 DL N F * * *
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* CG RAM addr set 0 1 ---------Acg--------- *
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* DD RAM addr set 1 -------------Add--------- *
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* *
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* Meaning: *
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* * - nonvalid bit *
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* Acg - CG RAM address (CHARACTER GENERATOR) *
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* Add - DD RAM address (DATA DISPLAY) *
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* AC - adress counter *
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* *
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* I/D - 1-increment, 0-decrement *
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* S - 1-display shift, 0-no display shift *
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* D - 1-display ON, 0-display OFF *
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* C - 1-cursor ON, 0-cursor OFF *
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* B - 1-blink ON, 0-blink OFF *
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* S/C - 1-display shift, 0-cursor movement *
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* R/L - 1-right shift, 0-left shift *
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* DL - 1-8 bits data transfer, 0-4 bits data transfer *
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* N - 1-1/16 duty, 0-1/8 or 1/11 duty *
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* F - 1-5x10 dot matrix, 0-5x7 dot matrix *
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* BF - 1-internal operation in progress, 0-display ready *
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* *
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\*************************************************************************/
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#define BAR_DAT P1_3
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#define BAR_SCK P1_4
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#define BAR_SCL P1_5
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#define BAR_RCK P1_6
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#define BAR_OE P1_7
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#define LCD_RS_PIN P2_4
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#define LCD_RW_PIN P2_5
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#define LCD_EN_PIN P2_6
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#define LCD_RS 0x10 /* rgister select */
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#define LCD_RW 0x20 /* read/write */
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#define LCD_EN 0x40 /* chip enable */
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#define KEY_COL_1 P0_0
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#define KEY_COL_2 P0_1
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#define KEY_COL_3 P0_2
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#define KEY_COL_4 P0_3
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/* --- LCD commands --- */
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#define KEY_ROW_1 P0_4
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#define KEY_ROW_2 P0_5
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#define KEY_ROW_3 P0_6
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#define KEY_ROW_4 P0_7
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#define cmd_lcd_init 0x38
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volatile uint16_t TIMER;
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#define cmd_lcd_clear 0x01
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#define cmd_lcd_home 0x02
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#define cmd_cur_shift_on 0x06
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#define cmd_cur_shift_off 0x07
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#define cmd_lcd_on 0x0E
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#define cmd_lcd_off 0x0A
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#define cmd_cur_on 0x0E
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#define cmd_cur_off 0x0C
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#define cmd_cur_blink_on 0x0F
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#define cmd_cur_blink_off 0x0E
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#define cmd_cur_left 0x10
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#define cmd_cur_right 0x14
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#define cmd_scr_left 0x18
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#define cmd_scr_right 0x1C
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#define cmd_set_cgram_addr 0x40
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#define cmd_set_ddram_addr 0x80
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void Delay(int pause) {
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// Timer-based delay, waits for pause * 10 ms
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void delay(int pause) {
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TIMER = 1 + pause;
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while(TIMER);
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}
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void LCD_Pause(void) {
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// Hnus, ale funguje to
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uint8_t lcd_pos;
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#define LCD_RS 0x10 /* rgister select */
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#define LCD_RW 0x20 /* read/write */
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#define LCD_EN 0x40 /* chip enable */
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// Quick'n'dirty CPU pause, just enough for the LCD to stabilize.
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void lcd_pause(void) {
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int i = 30;
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while(i--);
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}
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uint8_t LCD_State(void) {
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// Reads the status register from the LCD.
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uint8_t lcd_read_status(void) {
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uint8_t temp;
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LCD_Pause();
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lcd_pause();
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P2 = LCD_RW | 0x0F;
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LCD_Pause();
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lcd_pause();
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LCD_EN_PIN = 1;
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LCD_Pause();
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lcd_pause();
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temp = (P2 & 0x0F) << 4;
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LCD_EN_PIN = 0;
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LCD_Pause();
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lcd_pause();
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LCD_EN_PIN = 1;
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LCD_Pause();
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lcd_pause();
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temp = temp + (P2 & 0x0F);
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LCD_EN_PIN = 0;
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return temp;
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}
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void LCD_SendCmd( uint8_t val )
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// Writes a command to the LCD.
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void lcd_send_cmd( uint8_t val )
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{
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LCD_Pause();
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lcd_pause();
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P2 = (val >> 4) & 0x0F;
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LCD_Pause();
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lcd_pause();
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LCD_EN_PIN = 1;
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LCD_Pause();
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lcd_pause();
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LCD_EN_PIN = 0;
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LCD_Pause();
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lcd_pause();
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P2 = (val & 0x0F);
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LCD_Pause();
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lcd_pause();
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LCD_EN_PIN = 1;
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LCD_Pause();
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lcd_pause();
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LCD_EN_PIN = 0;
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while(LCD_State() & 0x80);
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while(lcd_read_status() & 0x80);
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}
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void LCD_SendData(uint8_t val) {
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LCD_Pause();
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// Writes a data value to the LCD.
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void lcd_send_data(uint8_t val) {
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lcd_pause();
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P2 = LCD_RS | ((val >> 4) & 0x0F);
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LCD_Pause();
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lcd_pause();
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LCD_EN_PIN = 1;
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LCD_Pause();
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lcd_pause();
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LCD_EN_PIN = 0;
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LCD_Pause();
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lcd_pause();
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P2 = LCD_RS | (val & 0x0F);
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LCD_Pause();
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lcd_pause();
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LCD_EN_PIN = 1;
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LCD_Pause();
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lcd_pause();
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LCD_EN_PIN = 0;
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while(LCD_State() & 0x80);
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while(lcd_read_status() & 0x80);
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}
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void LCD_Clear(void) {
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LCD_SendCmd(0x01); /* display clear */
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LCD_Pos=0;
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// Clears the LCD.
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void lcd_clear(void) {
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lcd_send_cmd(0x01); /* display clear */
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lcd_pos = 0;
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}
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void LCD_Init(void) {
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// Initializes the LCD.
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void lcd_init(void) {
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P2 = 0; /* set RS, RW and EN low */
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/* all delays are vital */
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Delay(50); /* power on delay - wait more than 15 ms */
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delay(50); /* power on delay - wait more than 15 ms */
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for(uint8_t i = 0; i < 3; i++) {
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P2 = 0x03; /* lce enable low */
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Delay(1); /* wait more than 100us */
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delay(1); /* wait more than 100us */
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P2 = LCD_EN | 0x03; /* lcd enable high */
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Delay(1); /* wait more than 100us */
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delay(1); /* wait more than 100us */
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P2 = 0x03; /* lce enable low */
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Delay(5); /* wait more than 4.1 ms */
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delay(5); /* wait more than 4.1 ms */
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}
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P2 = 0x02; /* lcd enable low */
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Delay(1); /* wait more than 100us */
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delay(1); /* wait more than 100us */
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P2 = LCD_EN | 0x02; /* lcd enable high */
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Delay(1); /* wait more than 100us */
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delay(1); /* wait more than 100us */
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P2 = 0x02; /* lcd enable low */
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Delay(5); /* wait more than 100us */
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delay(5); /* wait more than 100us */
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LCD_SendCmd(0x28); /* 4 bit mode, 1/16 duty, 5x8 font */
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LCD_SendCmd(0x08); /* display off */
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LCD_Clear();
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LCD_SendCmd(0x06); /* entry mode */
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LCD_SendCmd(0x0C); /* display on, blinking cursor off */
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lcd_send_cmd(0x28); /* 4 bit mode, 1/16 duty, 5x8 font */
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lcd_send_cmd(0x08); /* display off */
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lcd_clear();
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lcd_send_cmd(0x06); /* entry mode */
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lcd_send_cmd(0x0C); /* display on, blinking cursor off */
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}
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int putchar(int c) {
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// Puts a character to the LCD. Correctly handles '\n'.
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void lcd_putchar(char c) {
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if(c == 10) {
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while((LCD_Pos != 0) && (LCD_Pos != 40)) {
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LCD_SendData(32);
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LCD_Pos++;
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if(LCD_Pos == 80) LCD_Pos=0;
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while((lcd_pos != 0) && (lcd_pos != 40)) {
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lcd_send_data(32);
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lcd_pos++;
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if(lcd_pos == 80) lcd_pos=0;
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}
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} else {
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LCD_SendData(c);
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LCD_Pos++;
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if(LCD_Pos == 80) LCD_Pos=0;
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lcd_send_data(c);
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lcd_pos++;
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if(lcd_pos == 80) lcd_pos=0;
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}
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}
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// Initializes the background tick timer (for delays).
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void timer_init(void) {
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// Initialize timer 0 as 16-bit countdown, timer 1 as 8-bit auto-reload countdown
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TMOD = 0x21;
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TCON = 0x50;
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// Initialize timer 0 for 100 Hz
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TL0 = (uint8_t)NPER;
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TH0 = (uint8_t)(NPER >> 8);
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// Enable interrupts only for timer 0
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IE = 0x82;
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}
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// Initializes the serial port (along with timer 2).
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void serial_init(void) {
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// Initialize timer 2 as 312500 Hz as the baud rate generator (for tulflash)
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RCAP2H = 0xFF;
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RCAP2L = 0xFE;
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T2CON = 0x34;
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// Initialize serial I/O
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SCON = 0x50;
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TI = 1;
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}
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// Writes a character to the serial port.
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void serial_putchar(char c) {
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while(TI == 0);
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SBUF = c;
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}
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__bit stdout_to_lcd = 0;
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__bit stdout_to_serial = 0;
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// Writes a character to standard output (LCD, serial or both).
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int putchar(int c) {
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if(stdout_to_lcd) {
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lcd_putchar(c);
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}
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if(stdout_to_serial) {
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serial_putchar(c);
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}
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return 0;
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}
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/*****************************************
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** Nastaveni preruseni **
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*****************************************/
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/* Seriove preruseni a timer1 jsou nastaveny
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na 115200bps, timer0 se nastavuje pomoci TH0.*/
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void init_interrupts(void) {
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TMOD=0x21;
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TCON=0x50;
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PCON=0x80;
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TL0=(uint8_t)NPER;
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TH0=(uint8_t)(NPER >> 8);
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IE=0x82;
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}
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/*****************************************
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** Obsluha LED baru **
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*****************************************/
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/*
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__sbit __at _P1+3 LB_Data;
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__sbit __at _P1+4 LB_SCK;
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__sbit __at _P1+5 LB_SCL; RESET
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__sbit __at _P1+6 LB_RCK; PREPIS
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__sbit __at _P1+7 LB_OE;
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*/
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void SetLedBar(uint16_t n) {
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// Writes a 10-bit value to the LED bar. Bit 0 = bottom LED, bit 9 = top LED.
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void led_bar_set(uint16_t n) {
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uint8_t i;
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LB_RCK = 0;
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LB_SCL = 0;
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LB_SCL = 1;
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LB_SCK = 0;
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BAR_RCK = 0;
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BAR_SCL = 0;
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BAR_SCL = 1;
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BAR_SCK = 0;
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for(i = 0; i < 10; i++) {
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LB_Data = !(n & 1);
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BAR_DAT = !(n & 1);
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n >>= 1; // n = n >> 1
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LB_SCK = 1;
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LB_SCK = 0;
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BAR_SCK = 1;
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BAR_SCK = 0;
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}
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LB_RCK = 1;
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LB_OE = 0;
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BAR_RCK = 1;
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BAR_OE = 0;
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}
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/*****************************************
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** Obsluha Klavesnice **
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*****************************************/
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#define KEY_C_1 P0_0
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#define KEY_C_2 P0_1
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#define KEY_C_3 P0_2
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#define KEY_C_4 P0_3
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#define KEY_R_1 P0_4
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#define KEY_R_2 P0_5
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#define KEY_R_3 P0_6
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#define KEY_R_4 P0_7
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char GetKeyboard(void) {
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// Reads a character from the keypad.
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char keypad_read(void) {
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P0 = 0xFF;
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KEY_R_1 = 0;
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LCD_Pause();
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if (!KEY_C_1) return '1';
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if (!KEY_C_2) return '2';
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if (!KEY_C_3) return '3';
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if (!KEY_C_4) return 'A';
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KEY_ROW_1 = 0;
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lcd_pause();
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if (!KEY_COL_1) return '1';
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if (!KEY_COL_2) return '2';
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if (!KEY_COL_3) return '3';
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if (!KEY_COL_4) return 'A';
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||||
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P0 = 0xFF;
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KEY_R_2 = 0;
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LCD_Pause();
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if (!KEY_C_1) return '4';
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if (!KEY_C_2) return '5';
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if (!KEY_C_3) return '6';
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if (!KEY_C_4) return 'B';
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KEY_ROW_2 = 0;
|
||||
lcd_pause();
|
||||
if (!KEY_COL_1) return '4';
|
||||
if (!KEY_COL_2) return '5';
|
||||
if (!KEY_COL_3) return '6';
|
||||
if (!KEY_COL_4) return 'B';
|
||||
|
||||
P0 = 0xFF;
|
||||
KEY_R_3 = 0;
|
||||
LCD_Pause();
|
||||
if (!KEY_C_1) return '7';
|
||||
if (!KEY_C_2) return '8';
|
||||
if (!KEY_C_3) return '9';
|
||||
if (!KEY_C_4) return 'C';
|
||||
KEY_ROW_3 = 0;
|
||||
lcd_pause();
|
||||
if (!KEY_COL_1) return '7';
|
||||
if (!KEY_COL_2) return '8';
|
||||
if (!KEY_COL_3) return '9';
|
||||
if (!KEY_COL_4) return 'C';
|
||||
|
||||
P0 = 0xFF;
|
||||
KEY_R_4 = 0;
|
||||
LCD_Pause();
|
||||
if (!KEY_C_1) return '*';
|
||||
if (!KEY_C_2) return '0';
|
||||
if (!KEY_C_3) return '#';
|
||||
if (!KEY_C_4) return 'D';
|
||||
KEY_ROW_4 = 0;
|
||||
lcd_pause();
|
||||
if (!KEY_COL_1) return '*';
|
||||
if (!KEY_COL_2) return '0';
|
||||
if (!KEY_COL_3) return '#';
|
||||
if (!KEY_COL_4) return 'D';
|
||||
|
||||
return -1;
|
||||
}
|
||||
|
||||
/*****************************************
|
||||
** Hlavni program **
|
||||
*****************************************/
|
||||
|
||||
void main(void) {
|
||||
init_interrupts();
|
||||
LCD_Init();
|
||||
timer_init();
|
||||
lcd_init();
|
||||
serial_init();
|
||||
|
||||
int i = 0;
|
||||
stdout_to_serial = 1;
|
||||
stdout_to_lcd = 1;
|
||||
|
||||
int i = 1;
|
||||
|
||||
while(1) {
|
||||
LCD_Clear();
|
||||
printf("hellOwOrld! %d", ++i);
|
||||
Delay(TickPerSec);
|
||||
lcd_clear();
|
||||
printf("hellOwOrld! %d\n", i);
|
||||
led_bar_set(i);
|
||||
|
||||
LED_RED = !(i & 1);
|
||||
LED_YELLOW = !(i & 2);
|
||||
LED_GREEN = !(i & 4);
|
||||
BULB = !(i & 8);
|
||||
|
||||
i++;
|
||||
|
||||
delay(TICK_RATE);
|
||||
}
|
||||
}
|
||||
|
||||
/*****************************************
|
||||
** Obsluha casovace 0 **
|
||||
*****************************************/
|
||||
|
||||
|
||||
void timer0(void) __interrupt(1) {
|
||||
void timer0_handler(void) __interrupt(1) {
|
||||
// Reload, 10ms
|
||||
TL0=(uint8_t)NPER;
|
||||
TH0=(uint8_t)(NPER >> 8);
|
||||
if(TIMER!=0) TIMER--;
|
||||
TL0 = (uint8_t)NPER;
|
||||
TH0 = (uint8_t)(NPER >> 8);
|
||||
if(TIMER != 0) TIMER--;
|
||||
}
|
||||
|
||||
|
||||
Reference in New Issue
Block a user