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This commit is contained in:
Mike Trudeau
2026-02-13 20:30:52 +00:00
parent 71ffec0d88
commit 5b106896a1
127 changed files with 35217 additions and 0 deletions
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51
fw/n76e003/ebake1/Makefile Normal file
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## A directory for n76e003 include file & lib
COMMONDIR = ../common
## Get program name from enclosing directory name
PROGRAM = $(lastword $(subst /, ,$(CURDIR)))
SOURCES=$(wildcard *.c)
OBJECTS=$(SOURCES:.c=.rel)
HEADERS=$(wildcard *.h $(COMMONDIR)/inc/*.h)
CC = sdcc
AS = sdas8051
MCU_MODEL = mcs51
MODEL = small
CODE_SIZE = --code-size 18432
IRAM_SIZE = --iram-size 256
XRAM_SIZE = --xram-size 768
DFOSC = -DFOSC_160000
AFLAGS = -l -s
CPPFLAGS = -I$(COMMONDIR)/inc
CFLAGS = -I$(INCDIR) -m$(MCU_MODEL) --model-$(MODEL) --out-fmt-ihx --no-xinit-opt $(DFOSC)
LFLAGS = $(LIBPATH) $(LIBS) -m$(MCU_MODEL) --model-$(MODEL) $(CODE_SIZE) $(IRAM_SIZE) $(XRAM_SIZE) --out-fmt-ihx $(DEBUG) $(DFOSC)
LDLIBS = -L$(COMMONDIR) -lcommon.lib
FLASHTOOL=nuvoprog
.PHONY: all clean flash
all: $(PROGRAM).ihx
@echo $(SOURCES)
exit
@ls -la $(PROGRAM).ihx
$(PROGRAM).ihx: $(OBJECTS) $(COMMONDIR)/common.lib
$(CC) $(LDFLAGS) $^ $(LDLIBS) -o $@
$(COMMONDIR)/common.lib:
@make -C $(COMMONDIR) all
%.rel : %.c $(HEADERS)
$(CC) $(CFLAGS) $(CPPFLAGS) -c -o $@ $<
CCOMPILEDFILES=$(SOURCES:.c=.asm) $(SOURCES:.c=.lst) $(SOURCES:.c=.rel) \
$(SOURCES:.c=.rst) $(SOURCES:.c=.sym)
flash: $(PROGRAM).ihx
$(FLASHTOOL) -c $(PROGRAMMER) -p $(DEVICE) -w $(PROGRAM).ihx
clean:
@rm -f $(PROGRAM).ihx $(PROGRAM).cdb $(PROGRAM).lk $(PROGRAM).map $(CCOMPILEDFILES)

72
fw/n76e003/ebake1/defaults.h Normal file
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#ifndef DEFAULTS_H
#define DEFAULTS_H
#define LED0 P14
#define SW0 P13
#define BUZZER_CLK (16000000 / 12)
#define BUZZER_FREQ (1200 * 2)
#define BUZZER_PERIOD (0xFFFF - ((BUZZER_CLK / BUZZER_FREQ) - 1))
#define PWM_CLK (16000000 / 8)
#define PWM_FREQ 240
#define PWM_PERIOD ((PWM_CLK / PWM_FREQ) - 1)
#define PWM_SLICE (PWM_PERIOD / 100)
#define SRV0_START 0
#define NUMBER_OF_OUTPUTS 2
#define DEFAULT_TEMP_COOL 45
#define DEFAULT_TEMP_HOT 50
#define DEFAULT_MAX_TEMP 280
#define DEFAULT_MAX_DEVIATION 20
enum
{
SM_GO_NULL = 0,
SM_NULL,
SM_GO_RUN,
SM_RUN,
SM_START_COOLING,
SM_COOLING,
SM_DONE,
SM_DONE_Q
};
enum
{
DISPLAY_CURRENT_SECOND = 0,
DISPLAY_COUNTDOWN_TIMER,
DISPLAY_PROFILE_TIMER,
};
enum
{
ELEMENT_TOP = 0,
ELEMENT_BOTTOM
};
enum
{
PROFILE_FIRST = 0,
PROFILE_MIDDLE,
PROFILE_LAST,
};
#define PID_P 2
#define PID_I 3
#define PID_D 0
#define BIAS_MAX 100
#define BIAS_B 100
#define BIAS_T 75
const uint8_t profile[3][2] = {{150,40},{190,10},{245,12}};
#define PROFILE_LEN 3
#define PROFILE_TEMP 0
#define PROFILE_TIME 1
#define PROFILE_OVERSHOOT 10 // FIX the PID, don't do this!!
#define PROFILE_ADJUST 1
#endif /* DEFAULTS_H */

517
fw/n76e003/ebake1/main.c Normal file
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/*
* N76E003-TOASTER
*
* LED
* LED0 -> [11] P1.4 (RED; HOT)
* SSR
* SSR0 -> [20] P0.4;PWM3 > TOP
* SSR1 -> [10] P1.5;PWM5 > BOTTOM
* SERVO
* SRV0 -> [13] P1.2;PWM0
* SW
* SW0 -> [12] P1.3
* LCD
* CS -> [14] P1.1
* DC -> [19] P0.3
* RES -> [06] P1.7
* SCK -> [15] P1.0;SPCLK [spi]
* MOSI -> [16] P0.0;MOSI [spi]
* MAX6675
* CS -> [05] P3.0
* SCK -> [15] P1.0;SPCLK [spi]
* MISO -> [17] P0.1;MISO [spi]
* BEEP
* BEEP -> [01] P0.5;T0
* UART1 115200 8N1
* TX -> [02] P0.6
* RX -> [03] P0.7
*/
#include <N76E003.h>
#include <SFR_Macro.h>
#include <Function_define.h>
#include <Common.h>
#include <Delay.h>
#include <stdbool.h>
#include <max6675.h>
#include <lcd.h>
#include "defaults.h"
#include "strings.h"
#include "pid.h"
/* Needed for printf */
int putchar(int c)
{
while (!TI)
;
TI = 0;
SBUF = c;
return c;
}
void TIM0_ISR(void) __interrupt(1)
{
clr_TF0;
TL0 = LOBYTE(BUZZER_PERIOD);
TH0 = HIBYTE(BUZZER_PERIOD);
}
volatile uint16_t tim2Value = 0;
void TIM2_ISR(void) __interrupt(5)
{
clr_TF2;
tim2Value++;
}
volatile uint8_t sw0Counter;
void PinInterrupt_ISR(void) __interrupt(7)
{
if (PIF == 0x08)
{
PIF = 0;
sw0Counter++;
}
}
void setOutput(uint8_t value0, uint8_t value1)
{
uint16_t pwm = PWM_SLICE * value0;
if (pwm > 0)
{
PWM3H = HIBYTE(pwm);
PWM3L = LOBYTE(pwm);
}
else
{
PWM3H = 0;
PWM3L = 0;
}
pwm = PWM_SLICE * value1;
if (pwm > 0)
{
set_SFRPAGE;
PWM5H = HIBYTE(pwm);
PWM5L = LOBYTE(pwm);
clr_SFRPAGE;
}
else
{
set_SFRPAGE;
PWM5H = 0;
PWM5L = 0;
clr_SFRPAGE;
}
while (LOAD == 1)
;
set_LOAD;
}
uint16_t setServo(uint8_t value0)
{
uint16_t srv0 = (PWM_SLICE * 6) + (value0 * (PWM_SLICE/4));
PWM0H = HIBYTE(srv0);
PWM0L = LOBYTE(srv0);
while (LOAD == 1)
;
set_LOAD;
return srv0;
}
void setText(bool stdout, bool isTitle, struct LCD_SEGMENT *segment, uint8_t *format, ...)
{
uint8_t *ptr = (uint8_t*)segment->buffer;
lcd_clear_segment(segment);
if (isTitle)
{
*ptr++;
*ptr++;
}
va_list args;
va_start(args, format);
vsprintf(ptr, format, args);
va_end(args);
if (stdout)
{
if (isTitle)
*ptr++;
printf_tiny("%s: '%s'\r\n", ((isTitle) ? " TITLE" : "STATUS"), ptr);
// printf_tiny((isTitle) ? "TITLE: '" : "STATUS: '");
// printf_tiny("%s", ptr);
// printf_tiny("'\r\n");
}
}
/*==========================================================================*/
void main(void)
{
__xdata uint16_t previousTicks = 0xffff;
__xdata uint16_t previousSecond = 0xffff;
__xdata uint8_t servo0 = SRV0_START;
__xdata uint8_t previousDutyCycle[NUMBER_OF_OUTPUTS] = {0, 0};
__xdata uint8_t currentDutyCycle[NUMBER_OF_OUTPUTS] = {0, 0};
__xdata bool isHeating = false;
__xdata uint8_t stateMachine = SM_GO_NULL;
__xdata uint8_t beeps = 2;
__xdata bool beepOn = false;
__xdata uint16_t profileTimer = 0;
__xdata bool profileTimerRunning = false;
__xdata uint8_t profileStep = 0;
__xdata uint16_t desiredTemperature = 0;
__xdata uint8_t currentPidDutyCycle = 0;
__xdata uint8_t previousPidDutyCycle = 0xff;
__xdata uint16_t countdownTimer = 0;
__xdata uint8_t displayTime = DISPLAY_CURRENT_SECOND;
__xdata uint8_t displayType = '+';
__xdata pid_struct pid = {
0, 0, //dstate, istate
10, 0, //imax, imin
99, 0, //max/min output limits
PID_P, PID_I, PID_D //p, i, d gains
};
clr_EA;
/* SW0 setup */
sw0Counter = 0;
P13_Input_Mode;
clr_PIPS1;
set_PIPS0;
Enable_BIT3_FallEdge_Trig;
set_EPI;
/* LED setup */
P14_Quasi_Mode;
/* TIM0 setup / BUZZER */
P05_PushPull_Mode;
TIMER0_MODE1_ENABLE;
TL0 = LOBYTE(BUZZER_PERIOD);
TH0 = HIBYTE(BUZZER_PERIOD);
set_ET0;
set_T0OE;
clr_TR0;
/* TIM2 setup ~200ms */
TIMER2_DIV_128;
TIMER2_Auto_Reload_Delay_Mode;
RCMP2L = LOBYTE(TIMER_DIV128_VALUE_250ms);
RCMP2H = HIBYTE(TIMER_DIV128_VALUE_250ms);
TL2 = 0;
TH2 = 0;
set_ET2;
set_TR2;
/* PWM setup */
PWM_IMDEPENDENT_MODE;
PWM_CENTER_TYPE;
PWM_CLOCK_DIV_8;
PWMPH = HIBYTE(PWM_PERIOD);
PWMPL = LOBYTE(PWM_PERIOD);
set_PWMRUN;
/* SSR setup */
P04_PushPull_Mode;
P15_PushPull_Mode;
PWM3_P04_OUTPUT_ENABLE;
PWM5_P15_OUTPUT_ENABLE;
/* SERVO setup */
P12_PushPull_Mode;
PWM0_P12_OUTPUT_ENABLE;
/* MAX6675 setup */
max6675_init();
/* LCD setup */
lcd_init(true);
__xdata uint8_t lcdTitleBuffer[21];
__xdata struct LCD_SEGMENT lcdTitle = {
'#', // clearChar
lcdTitleBuffer, // buffer
sizeof(lcdTitleBuffer), // bufferDepth
1, // fontWidth
1, // fontHeight
1, // fontSpacing
0, // page0
1, // rows
};
lcd_clear_segment(&lcdTitle);
__xdata uint8_t lcdTimeBuffer[11];
__xdata struct LCD_SEGMENT lcdTime = {
' ', // clearChar
&lcdTimeBuffer, // buffer
sizeof(lcdTimeBuffer), // bufferDepth
2, // fontWidth
2, // fontHeight
1, // fontSpacing
1, // page0
1, // rows
};
lcd_clear_segment(&lcdTime);
__xdata uint8_t lcdPowerTempBuffer[11];
__xdata struct LCD_SEGMENT lcdPowerTemp = {
' ', // clearChar
lcdPowerTempBuffer, // buffer
sizeof(lcdPowerTempBuffer), // bufferDepth
2, // fontWidth
3, // fontHeight
1, // fontSpacing
3, // page0
1, // rows
};
lcd_clear_segment(&lcdPowerTemp);
__xdata uint8_t lcdStatusBuffer[21];
__xdata struct LCD_SEGMENT lcdStatus = {
'#', // clearChar
lcdStatusBuffer, // buffer
sizeof(lcdStatusBuffer), // bufferDepth
1, // fontWidth
2, // fontHeight
1, // fontSpacing
6, // page0
1, // rows
};
lcd_clear_segment(&lcdStatus);
/* UART0 setup */
InitialUART0_Timer3(115200);
TI = 1;
set_EA;
printf_tiny("\r\n\r\n");
do
{
uint8_t currentSW0 = sw0Counter;
sw0Counter = 0;
uint16_t currentTicks = tim2Value;
uint16_t currentTemperatureRaw = max6675_read();
uint16_t currentTemperature = currentTemperatureRaw / 4;
uint16_t currentTemperaturePoint = (currentTemperatureRaw - (currentTemperature * 4)) * 100;
uint16_t currentSecond = (currentTicks / 4);
bool isOneSecondInterval = false;
if (previousTicks != currentTicks)
{
previousTicks = currentTicks;
if (previousSecond != currentSecond)
{
previousSecond = currentSecond;
isOneSecondInterval = true;
if (profileTimerRunning)
profileTimer++;
}
if (beeps)
{
if ((currentTicks % 2) == 0)
{
set_TR0;
beepOn = true;
}
else if (beepOn)
{
clr_TR0;
beepOn = false;
beeps--;
}
}
}
if (currentSW0 && stateMachine == SM_NULL)
{
stateMachine = SM_GO_RUN;
}
else if (currentSW0 && stateMachine == SM_DONE_Q)
{
stateMachine = SM_GO_NULL;
}
else if (currentSW0 && stateMachine > SM_NULL && stateMachine < SM_START_COOLING)
{
beeps += 2;
stateMachine = SM_START_COOLING;
}
else if (currentTemperature > DEFAULT_TEMP_HOT && stateMachine < SM_GO_RUN)
{
setText(true, false, &lcdStatus, "%s %uC", ST_START_HOT, currentTemperature);
beeps += 2;
stateMachine = SM_START_COOLING;
}
if (currentTemperature == 0 && stateMachine > SM_GO_NULL)
{
setText(true, false, &lcdStatus, "%s", ST_THERMOCOUPLE_ERROR);
beeps += 4;
stateMachine = SM_START_COOLING;
}
else if (currentTemperature >= DEFAULT_TEMP_HOT)
{
LED0 = 0;
}
else if (currentTemperature < DEFAULT_TEMP_COOL)
{
LED0 = 1;
}
if (currentTemperature > DEFAULT_MAX_TEMP && stateMachine < SM_START_COOLING)
{
setText(true, false, &lcdStatus, "%s", ST_OVERTEMP);
beeps += 4;
stateMachine = SM_START_COOLING;
}
switch (stateMachine)
{
case SM_GO_NULL:
setText(true, true, &lcdTitle, " %s %s", ST_TITLE, ST_VER);
setText(true, false, &lcdStatus, "%s", ST_PRESS_BUTTON_TO_START);
isHeating = false;
profileStep = 0;
displayTime = DISPLAY_CURRENT_SECOND;
beeps = 0;
clr_TR0;
stateMachine = SM_NULL;
case SM_NULL:
break;
case SM_GO_RUN:
setText(true, true, &lcdTitle, " %s", ST_RUN);
lcd_clear_segment(&lcdStatus);
profileTimer = 0;
profileTimerRunning = false;
desiredTemperature = profile[profileStep][PROFILE_TEMP] + PROFILE_OVERSHOOT;
displayTime = DISPLAY_PROFILE_TIMER;
beeps += 1;
isHeating = true;
stateMachine = SM_RUN;
case SM_RUN:
if (!isOneSecondInterval)
break;
currentPidDutyCycle = update_pid(&pid, pid_guard(desiredTemperature, currentTemperature), currentTemperature);
if ((profileTimerRunning == false) && (profile[profileStep][PROFILE_TEMP] - PROFILE_ADJUST <= currentTemperature))
{
desiredTemperature = profile[profileStep][PROFILE_TEMP] + PROFILE_ADJUST;
profileTimer = 0;
profileTimerRunning = true;
}
if ((profileTimerRunning == true) && (profile[profileStep][PROFILE_TIME] <= profileTimer))
{
beeps += 1;
if (++profileStep == PROFILE_LEN)
stateMachine = SM_START_COOLING;
else
stateMachine = SM_GO_RUN;
}
break;
case SM_START_COOLING:
setText(true, true, &lcdTitle, " %s", ST_COOLING);
isHeating = false;
profileTimerRunning = true;
profileTimer = 0;
displayTime = DISPLAY_PROFILE_TIMER;
beeps += 2;
stateMachine = SM_COOLING;
case SM_COOLING:
if (isOneSecondInterval)
{
if (currentTemperature < DEFAULT_TEMP_HOT && profileTimer >= 1)
{
isHeating = false;
stateMachine = SM_DONE;
}
}
break;
case SM_DONE:
setText(true, true, &lcdTitle, " %s", ST_DONE);
setText(true, false, &lcdStatus, "%s", ST_PRESS_TO_RESTART);
isHeating = false;
beeps += 6;
stateMachine = SM_DONE_Q;
case SM_DONE_Q:
break;
}
if (isHeating)
{
if (previousPidDutyCycle != currentPidDutyCycle)
{
previousPidDutyCycle = currentPidDutyCycle;
currentDutyCycle[ELEMENT_TOP] = currentPidDutyCycle * BIAS_T / BIAS_MAX;
currentDutyCycle[ELEMENT_BOTTOM] = currentPidDutyCycle * BIAS_B / BIAS_MAX;
setOutput(currentDutyCycle[ELEMENT_TOP], currentDutyCycle[ELEMENT_BOTTOM]);
}
}
else
{
if (previousPidDutyCycle != 0)
{
setOutput(0, 0);
previousDutyCycle[ELEMENT_TOP] = 0;
previousDutyCycle[ELEMENT_BOTTOM] = 0;
}
}
if (isOneSecondInterval)
{
lcd_clear_segment(&lcdTime);
lcd_clear_segment(&lcdPowerTemp);
if (stateMachine == SM_DONE_Q)
{ /*
format_sprintf(oledTime->buffer, ((learningFailed) ? ST_FAILED : ((learningAborted) ? ST_ABORTED : ST_SUCCESS)));
if (learningFailed)
format_sprintf(oledPowerTemp->buffer, "%s #%04u", ST_ERROR, learningFailed);
else if (!learningAborted)
format_sprintf(oledPowerTemp->buffer, "%2u %3u %3u", learnedDutyCycle, learnedInertia, learnedInsulation);
*/
}
else
{
uint16_t dT = (displayTime == DISPLAY_CURRENT_SECOND) ? currentSecond : ((displayTime == DISPLAY_COUNTDOWN_TIMER) ? countdownTimer : profileTimer);
uint16_t lm = (dT / 60);
uint16_t tm = (lm % 60);
uint8_t th = (lm / 60);
uint8_t ts = (dT % 60);
setText(false, false, &lcdTime, "%c %02u:%02u:%02u", displayType, th, tm, ts);
if (isHeating)
setText(false, false, &lcdPowerTemp, "%02u:%02u %3u C", currentDutyCycle[ELEMENT_TOP], currentDutyCycle[ELEMENT_BOTTOM], currentTemperature);
else
setText(false, false, &lcdPowerTemp, "--:-- %3u C", currentTemperature);
}
// setText(true, false, &lcdTime, "? %02u:%02u:%02u", th, tm, ts);
lcd_display_segment(&lcdTitle);
lcd_display_segment(&lcdTime);
lcd_display_segment(&lcdPowerTemp);
lcd_display_segment(&lcdStatus);
}
set_IDL;
} while (1);
}

47
fw/n76e003/ebake1/pid.c Normal file
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#include "pid.h"
int8_t update_pid(pid_struct *pid, int8_t error, uint8_t position)
{
int16_t pterm, iterm, dterm, res;
//proportional calculation
pterm = pid->pgain * error;
// update integrator state
pid->istate += error;
if (pid->istate > pid->imax)
pid->istate = pid->imax;
else if (pid->istate < pid->imin)
pid->istate = pid->imin;
//integral calcucation
iterm = pid->igain * pid->istate;
//differential calculation
dterm = pid->dgain * (position - pid->dstate);
pid->dstate = position;
res = pterm + iterm - dterm;
//cut by limits
if (res > pid->vmax)
res = pid->vmax;
else if (res < pid->vmin)
res = pid->vmin;
return res;
}
int8_t pid_guard(uint16_t desired, uint16_t current)
{
int16_t temp_error;
temp_error = desired - current;
if (temp_error > 127)
temp_error = 127;
else if (temp_error < -127)
temp_error = -127;
return (int8_t)temp_error;
}

26
fw/n76e003/ebake1/pid.h Normal file
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#ifndef PID_H
#define PID_H
#include <N76E003.h>
#include <SFR_Macro.h>
#include <Function_define.h>
#include <Common.h>
#include <Delay.h>
#include <stdbool.h>
typedef signed char int8_t;
typedef int int16_t;
typedef struct {
int8_t dstate; //last position input
int8_t istate; //integrator state
int8_t imax, imin; //integratir limits
int8_t vmax,vmin; //result limits
int8_t pgain, igain, dgain;
} pid_struct;
int8_t update_pid(pid_struct *pid, int8_t error, uint8_t position);
int8_t pid_guard(uint16_t desired, uint16_t current);
#endif /* PID_H */

27
fw/n76e003/ebake1/strings.h Normal file
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#ifndef STRINGS_H
#define STRINGS_H
const uint8_t ST_TITLE[] = "EASYBAKE";
const uint8_t ST_VER[] = "V1.4";
const uint8_t ST_PRESS_BUTTON_TO_START[] = "PRESS TO START";
const uint8_t ST_PRESS_TO_RESTART[] = "PRESS TO RESTART";
const uint8_t ST_START_HOT[] = "START HOT";
const uint8_t ST_RUN[] = "RUN";
const uint8_t ST_COOLING[] = "COOLING";
const uint8_t ST_DONE[] = "DONE";
const uint8_t ST_THERMOCOUPLE_ERROR[] = "THERMOCOUPLE ERROR";
const uint8_t ST_UNABLE_TO_REACH[] = "UNABLE TO REACH";
const uint8_t ST_OVERTEMP[] = "OVERTEMP";
const uint8_t ST_UNDERTEMP[] = "UNDERTEMP";
const uint8_t ST_UNABLE_TO_COOL[] = "UNABLE TO COOL";
const uint8_t ST_ERROR[] = "ERROR";
const uint8_t ST_FAILED[] = "FAILED";
const uint8_t ST_ABORTED[] = "ABORTED";
const uint8_t ST_SUCCESS[] = "SUCCESS";
#endif /* STRINGS_H */