Initial commit

Makefile

@@ -0,0 +1,55 @@
+SDCC ?= sdcc
+SDAR ?= sdar
+STCCODESIZE ?= 8192
+SDCCOPTS ?= -mmcs51 
+SDCCREV ?= -Dstc15f204ea
+STCGAL ?= stcgal 
+#/stcgal.py
+STCGALOPTS ?= 
+STCGALPORT ?= /dev/ttyUSB0
+STCGALPROT ?= auto
+FLASHFILE ?= main.ihx
+#SYSCLK ?= 11056
+#FOSC ?=11056000L
+CFLAGS ?= -DWITH_ALT_LED9 -DWITHOUT_LEDTABLE_RELOC -DSHOW_TEMP_DATE_WEEKDAY
+
+LIBSRC = uart_init_.c uart_send_chr.c uart_send_str.c \
+	 rotary_encoder_stat.c \
+	 sevenseg_dec.c sevenseg_dec_inv.c \
+	 int_to_bcd.c getbutton.c \
+	 getpin.c setpin_lo.c setpin_hi.c setpin.c getport.c
+
+LIBOBJ =$(patsubst %.c,%.rel, $(LIBSRC))
+LIBNAME=mc8051fun.lib
+
+
+PRGOBJ =$(patsubst %.c,%.rel, $(PRGSRC))
+
+
+$(LIBNAME): $(LIBOBJ)
+	$(SDAR) -rc $(LIBNAME) $(LIBOBJ)
+#all: 
+#	make uart2.ihx
+
+%.rel: %.c
+	$(SDCC) $(SDCCOPTS) $(SDCCREV) -DFOSC=$(FOSC) -o $@ -c $<
+
+#eeprom:
+#	sed -ne '/:..1/ { s/1/0/2; p }' main.hex > eeprom.hex
+
+flash: $(FLASHFILE)
+	$(STCGAL) -p $(STCGALPORT) -P $(STCGALPROT) -t $(SYSCLK) $(STCGALOPTS) $(FLASHFILE)
+
+clean:
+	rm -f *.ihx *.hex *.bin *.rst
+	rm -f *.map
+	rm -f *.rel
+	rm -f *.lst
+	rm -f *.sym
+	rm -f *.asm
+	rm -f *.lk
+	rm -f *.mem
+	rm -f *.lib
+
+cpp: SDCCOPTS+=-E
+cpp: main

getbutton.c

@@ -0,0 +1,16 @@
+#include "mc8051fun.h"
+
+uint8_t getbutton_time = 100;
+int getbutton(uint8_t pinval, uint8_t *button)
+{
+	if ( *button & 1 != pinval){
+		*button += 2;
+		if (*button > getbutton_time){
+			*button = pinval;
+			return pinval;
+		}
+		return -1;
+	}
+	*button = pinval;
+	return -1;
+}

getpin.c

@@ -0,0 +1,18 @@
+
+#include "mc8051fun.h"
+
+int getpin(i8051pin_T *pin)
+{
+	switch(pin->port){
+		case 0:
+			return P0 & (1<<(pin->pin)) ? 1:0;
+		case 1:
+			return P1 & (1<<(pin->pin)) ? 1:0;
+		case 2:
+			return P2 & (1<<(pin->pin)) ? 1:0;
+		case 3:
+			return P3 & (1<<(pin->pin)) ? 1:0;
+	}
+
+	return 1;
+}

getport.c

@@ -0,0 +1,19 @@
+#include "mc8051fun.h"
+
+uint8_t getport(int n)
+{
+	switch(n){
+		case 0:
+			return P0;
+		case 1:
+			return P1;
+		case 2:
+			return P2;
+		case 3:
+			return P3;
+
+	}
+	return 0;
+}
+
+

int_to_bcd.c

@@ -0,0 +1,14 @@
+#include "mc8051fun.h"
+
+uint16_t int_to_bcd(uint16_t i)
+{
+	uint16_t b;
+        b = i%10;
+	i/=10;
+	b |= (i%10)<<4;
+	i/=10;
+	b |= (i%10)<<8;
+	i/=10;
+	b |= (i%10)<<12;
+	return b;
+}

mc8051fun.h

@@ -0,0 +1,79 @@
+#ifndef MC8051FUN_H
+#define MC8051FUN_H
+
+#include <stdint.h>
+#include <8052.h>
+
+
+
+void uart_send_chr(char tx_data);
+void uart_send_str(const char *str);
+
+void uart_init_(uint8_t timer_init,uint8_t x2);
+
+#define uart_init(baud,x2) \
+	uart_init_(256L-FOSC/12L/(baud*16L/(1<<x2)),x2)
+
+
+#define setbits(var,bits) (var|=bits)
+#define unsetbits(var,bits) (var&=(bits^0xff))
+
+
+
+int8_t rotary_encoder_stat(uint8_t b);
+
+extern uint8_t sevenseg_dec[10];
+extern uint8_t sevenseg_dec_inv[10];
+
+/**
+ * Minimum frequency is 15 Hz @ FOSC of 11 Mhz
+ */
+#define default_timer16_init_val(freq) ((65536L)-FOSC/12L/freq)
+#define default_timer8_init_val(freq) ((256L)-FOSC/12L/freq)
+
+#define at89xx_6t_timer16_init_val(freq) ((65536L)-FOSC/6L/freq)
+#define at89xx_6t_timer8_init_val(freq) ((256L)-FOSC/6L/freq)
+
+
+#define STC15XX		1	// STC15xx family
+#define AT89XX		2	// AT89XX family
+#define AT89XX_6T	3	// AT89C89C52 in 6T mode 
+	
+#if MCU==AT89XX_6T 
+#define timer8_init_val(freq) at89xx_6t_timer8_init_val(freq) 
+#define timer16_init_val(freq) at89xx_6t_timer16_init_val(freq) 
+#else
+#define timer8_init_val(freq) default_timer8_init_val(freq) 
+#define timer16_init_val(freq) default_timer16_init_val(freq) 
+#endif
+
+
+uint16_t int_to_bcd(uint16_t i);
+int getbutton(uint8_t pinval, uint8_t *button);
+extern uint8_t getbutton_time;
+
+
+/* a different representation of pins, which 
+ * lets us iteratate over pins.
+ * But its slower, of course */
+typedef struct {
+	uint8_t port;
+	uint8_t pin;
+} i8051pin_T;
+
+
+void setpin_hi(i8051pin_T *pin);
+void setpin_lo(i8051pin_T *pin);
+int getpin(i8051pin_T *pin);
+void setpin(i8051pin_T *pin, uint8_t val);
+uint8_t getport(int n);
+
+
+
+
+
+
+
+
+
+#endif

rotary_encoder_stat.c

@@ -0,0 +1,25 @@
+#include "mc8051fun.h"
+
+
+static uint8_t lastb=0xff;
+static uint8_t hist=0x00;
+
+int8_t rotary_encoder_stat(uint8_t b)
+{
+	if (b==0x00)
+		return 0;
+	if (b==lastb)
+		return 0;
+
+	lastb=b;
+	hist = (hist << 2) | b;
+	switch (hist){
+		case 0b11011011:
+			return 1;
+		case 0b11100111:
+			return -1;
+		default:
+			return 0;
+	}
+
+}

setpin.c

@@ -0,0 +1,11 @@
+
+#include "mc8051fun.h"
+
+void setpin(i8051pin_T *pin, uint8_t val)
+{
+	if (val)
+		setpin_hi(pin);
+	else
+		setpin_lo(pin);
+
+}

setpin_hi.c

@@ -0,0 +1,21 @@
+
+#include "mc8051fun.h"
+
+void setpin_hi(i8051pin_T *pin)
+{
+	switch(pin->port){
+		case 0:
+			P0 |= (1<<pin->pin);
+			break;
+		case 1:
+			P1 |= (1<<pin->pin);
+			break;
+		case 2:
+			P2 |= (1<<pin->pin);
+			break;
+		case 3:
+			P3 |= (1<<pin->pin);
+			break;
+	}
+}
+

setpin_lo.c

@@ -0,0 +1,20 @@
+#include "mc8051fun.h"
+
+void setpin_lo(i8051pin_T *pin)
+{
+	switch(pin->port){
+		case 0:
+			P0 &= (1<<pin->pin) ^ 0xFF;
+			break;
+		case 1:
+			P1 &= (1<<pin->pin) ^ 0xFF;
+			break;
+		case 2:
+			P2 &= (1<<pin->pin) ^ 0xFF;
+			break;
+		case 3:
+			P3 &= (1<<pin->pin) ^ 0xFF;
+			break;
+	}
+}
+

sevenseg_dec.c

@@ -0,0 +1,14 @@
+#include "mc8051fun.h"
+
+uint8_t sevenseg_dec[10] = {
+	0b11111100,
+	0b01100000,
+	0b11011010,
+	0b11110010,
+	0b01100110,
+	0b10110110,
+	0b10111110,
+	0b11100000,
+	0b11111110,
+	0b11110110
+};

sevenseg_dec_inv.c

@@ -0,0 +1,14 @@
+#include "mc8051fun.h"
+
+uint8_t sevenseg_dec_inv[10] = {
+	0b00000011,
+	0b10011111,
+	0b00100101,
+	0b00001101,
+	0b10011001,
+	0b01001001,
+	0b01000001,
+	0b00011111,
+	0b00000001,
+	0b00001001
+};

uart_init_.c

@@ -0,0 +1,23 @@
+#include "mc8051fun.h"
+
+#include <at89c51ed2.h>
+
+
+void uart_init_(uint8_t timer_init,uint8_t x2)
+{
+	TMOD |= 0x20;       // Timer 1 in Mode 2
+	TH1 = timer_init;   
+	TL1 = timer_init; 
+	TR1 = 1;           // Start Timer 1
+	SCON = 0x50;       // 8-bit data, 1 stop bit, REN enabled
+	
+	if(x2)
+		setbits(PCON,SMOD);
+	else	
+		unsetbits(PCON,SMOD);
+
+	return;
+
+}
+
+

uart_send_chr.c

@@ -0,0 +1,10 @@
+
+#include "mc8051fun.h"
+
+void uart_send_chr(char tx_data)
+{
+	TI = 0;			/* Clear TI flag */
+	SBUF = tx_data;		/* Load char in SBUF register */
+	while (TI==0);		/* Wait until stop bit transmit */
+}
+

uart_send_str.c

@@ -0,0 +1,8 @@
+
+#include "mc8051fun.h"
+
+void uart_send_str(const char *str)
+{
+	while(*str)
+		uart_send_chr(*str++);
+}