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Sergey Yarkov 2023-08-05 02:56:57 +03:00
parent 38205f2533
commit 76c415f67f
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12 changed files with 1077 additions and 648 deletions
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@ -2,6 +2,8 @@ Archive member included to satisfy reference by file (symbol)
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0x00000000000002b2 OneWire_CRC8_Update 0x00000000000003c2 OneWire_CRC8_Update
.text.DallasTemp_ReadScratchpad .text.DallasTemp_ReadScratchpad
0x00000000000002de 0x48 build/default/production/dstemperature.o 0x00000000000003ee 0x48 build/default/production/dstemperature.o
0x00000000000002de DallasTemp_ReadScratchpad 0x00000000000003ee DallasTemp_ReadScratchpad
.text.DallasTemp_Convert .text.DallasTemp_Convert
0x0000000000000326 0x14 build/default/production/dstemperature.o 0x0000000000000436 0x14 build/default/production/dstemperature.o
0x0000000000000326 DallasTemp_Convert 0x0000000000000436 DallasTemp_Convert
.text.DallasTemp_CheckError
0x000000000000044a 0x26 build/default/production/dstemperature.o
0x000000000000044a DallasTemp_CheckError
.text.DallasTemp_GetTemperature .text.DallasTemp_GetTemperature
0x000000000000033a 0x92 build/default/production/dstemperature.o 0x0000000000000470 0xb2 build/default/production/dstemperature.o
0x000000000000033a DallasTemp_GetTemperature 0x0000000000000470 DallasTemp_GetTemperature
.text.libgcc.div .text.libgcc.div
0x00000000000003cc 0x28 /opt/avr8-gnu-toolchain-linux_x86_64/bin/../lib/gcc/avr/7.3.0/avr25/libgcc.a(_udivmodhi4.o) 0x0000000000000522 0x28 /opt/avr8-gnu-toolchain-linux_x86_64/bin/../lib/gcc/avr/7.3.0/avr25/libgcc.a(_udivmodhi4.o)
0x00000000000003cc __udivmodhi4 0x0000000000000522 __udivmodhi4
0x00000000000003f4 . = ALIGN (0x2) .text.libgcc.div
0x000000000000054a 0x26 /opt/avr8-gnu-toolchain-linux_x86_64/bin/../lib/gcc/avr/7.3.0/avr25/libgcc.a(_divmodhi4.o)
0x000000000000054a __divmodhi4
0x000000000000054a _div
0x0000000000000570 . = ALIGN (0x2)
*(.fini9) *(.fini9)
.fini9 0x00000000000003f4 0x0 /opt/avr8-gnu-toolchain-linux_x86_64/bin/../lib/gcc/avr/7.3.0/avr25/libgcc.a(_exit.o) .fini9 0x0000000000000570 0x0 /opt/avr8-gnu-toolchain-linux_x86_64/bin/../lib/gcc/avr/7.3.0/avr25/libgcc.a(_exit.o)
0x00000000000003f4 exit 0x0000000000000570 exit
0x00000000000003f4 _exit 0x0000000000000570 _exit
*(.fini9) *(.fini9)
*(.fini8) *(.fini8)
*(.fini8) *(.fini8)
@ -330,11 +360,11 @@ END GROUP
*(.fini1) *(.fini1)
*(.fini1) *(.fini1)
*(.fini0) *(.fini0)
.fini0 0x00000000000003f4 0x4 /opt/avr8-gnu-toolchain-linux_x86_64/bin/../lib/gcc/avr/7.3.0/avr25/libgcc.a(_exit.o) .fini0 0x0000000000000570 0x4 /opt/avr8-gnu-toolchain-linux_x86_64/bin/../lib/gcc/avr/7.3.0/avr25/libgcc.a(_exit.o)
*(.fini0) *(.fini0)
0x00000000000003f8 _etext = . 0x0000000000000574 _etext = .
.data 0x0000000000800060 0x0 load address 0x00000000000003f8 .data 0x0000000000800060 0x0 load address 0x0000000000000574
[!provide] PROVIDE (__data_start, .) [!provide] PROVIDE (__data_start, .)
*(.data) *(.data)
*(.data*) *(.data*)
@ -352,8 +382,8 @@ END GROUP
*(.bss*) *(.bss*)
*(COMMON) *(COMMON)
[!provide] PROVIDE (__bss_end, .) [!provide] PROVIDE (__bss_end, .)
0x00000000000003f8 __data_load_start = LOADADDR (.data) 0x0000000000000574 __data_load_start = LOADADDR (.data)
0x00000000000003f8 __data_load_end = (__data_load_start + SIZEOF (.data)) 0x0000000000000574 __data_load_end = (__data_load_start + SIZEOF (.data))
.noinit 0x0000000000800060 0x0 .noinit 0x0000000000800060 0x0
[!provide] PROVIDE (__noinit_start, .) [!provide] PROVIDE (__noinit_start, .)

41
dstemperature.c
View File

@ -16,6 +16,26 @@ uint8_t DallasTemp_ReadScratchpad(uint8_t *scratchpad) {
return 1; return 1;
} }
void DallasTemp_WriteScratchpad(uint8_t *data) {
uint8_t i = 3;
OneWire_SkipROM();
OneWire_WriteByte(DS18B20_CMD_WSCRATCHPAD);
do {
OneWire_WriteByte(*data++);
} while (--i);
OneWire_Presence();
// TODO вынести в отдельную функцию DallasTemp_CopyScratchpad
OneWire_SkipROM();
OneWire_WriteByte(0x48);
_delay_ms(10);
}
uint8_t DallasTemp_Convert(void) { uint8_t DallasTemp_Convert(void) {
if (!OneWire_Presence()) return 0; if (!OneWire_Presence()) return 0;
OneWire_WriteByte(ONE_WIRE_SKIPROM); OneWire_WriteByte(ONE_WIRE_SKIPROM);
@ -23,10 +43,27 @@ uint8_t DallasTemp_Convert(void) {
return 1; return 1;
} }
uint8_t DallasTemp_CheckError(DallasSensor* Sensor) {
if (!OneWire_Presence()) return 1;
OneWire_ReadROM(Sensor->ROM);
if (Sensor->ROM[0] != DS18B20_CONST_FAMILY_CODE) return 1;
return 0;
}
void DallasTemp_GetTemperature(DallasSensor *Sensor) { void DallasTemp_GetTemperature(DallasSensor *Sensor) {
if (!DallasTemp_Convert()) return; if (!DallasTemp_Convert()) return;
_delay_ms(750); _delay_ms(750); // TODO задержку делать в зависимости от разрешения АЦП датчика
if (!DallasTemp_ReadScratchpad(Sensor->SCRATCHPAD)) return; if (!DallasTemp_ReadScratchpad(Sensor->SCRATCHPAD)) return;
Sensor->TEMPERATURE = ((Sensor->SCRATCHPAD[1] << 8) | Sensor->SCRATCHPAD[0]) / 16; Sensor->TEMPERATURE = ((Sensor->SCRATCHPAD[1] << 8) | Sensor->SCRATCHPAD[0]) / 16;
Sensor->TEMPERATURE_FRACTION = ((Sensor->SCRATCHPAD[0] & 0x0f) * 100) / 16;
/*
* Двойное дополнение для дробной части если минусовая температура:
* проверяем что последние пять битов в старшем байте температуры стоят в единице
*/
if (Sensor->SCRATCHPAD[1] & 0xf8) Sensor->SCRATCHPAD[0] = -Sensor->SCRATCHPAD[0];
/**
* Получаем дробную часть через битовую маску 0x0f, умножаем для получения точности.
*/
Sensor->TEMPERATURE_FRACTION = ((Sensor->SCRATCHPAD[0] & 0x0f) * 1000) / 16;
} }

25
dstemperature.h
View File

@ -2,17 +2,21 @@
#define DS18B20_CMD_CONVERTTEMP 0x44 #define DS18B20_CMD_CONVERTTEMP 0x44
#define DS18B20_CMD_RSCRATCHPAD 0xbe #define DS18B20_CMD_RSCRATCHPAD 0xbe
#define DS18B20_CMD_WSCRATCHPAD 0x4e
#define DS18B20_CONST_FAMILY_CODE 0x28
#ifndef DSTEMPERATURE_H #ifndef DSTEMPERATURE_H
#define DSTEMPERATURE_H #define DSTEMPERATURE_H
typedef struct DallasSensor { typedef struct DallasSensor {
uint8_t SCRATCHPAD[8]; // ОЗУ uint8_t SCRATCHPAD[8]; // ОЗУ (T_LSB, T_MSB, TH/USER BYTE 1, TH/USER BYTE 2, CONFIG, RESERVED, RESERVED, RESERVED, CRC8)
uint8_t ROM[8]; // ПЗУ uint8_t ROM[8]; // ПЗУ (код семейства, серийный код, CRC8)
int16_t TEMPERATURE; // Температура в градусах цельсия (целая часть) int16_t TEMPERATURE; // Температура в градусах цельсия (целая часть)
uint8_t TEMPERATURE_FRACTION; // Дробная часть uint16_t TEMPERATURE_FRACTION; // Дробная часть
} DallasSensor; } DallasSensor;
// TODO сделать функию установки разрешения АЦП датчика
/** /**
* Читает ОЗУ датчика * Читает ОЗУ датчика
* @param scratchpad - первые 8 байт. * @param scratchpad - первые 8 байт.
@ -20,6 +24,12 @@ typedef struct DallasSensor {
*/ */
uint8_t DallasTemp_ReadScratchpad(uint8_t *scratchpad); uint8_t DallasTemp_ReadScratchpad(uint8_t *scratchpad);
/**
* Записывает данные в ОЗУ датчика
* @param data - 3 байта
*/
void DallasTemp_WriteScratchpad(uint8_t *data);
/** /**
* Отправляет команду для оцифровки температуры. * Отправляет команду для оцифровки температуры.
* @return "1" - если команда отправлена, "0" - если не было ответа от датчика * @return "1" - если команда отправлена, "0" - если не было ответа от датчика
@ -28,9 +38,16 @@ uint8_t DallasTemp_Convert(void);
/** /**
* Получает оцифрованное значение датчика и конвертирует занчение в читаемый вид. * Получает оцифрованное значение датчика и конвертирует занчение в читаемый вид.
* @param Sensor - структура датчика * @param Sensor - датчика
*/ */
void DallasTemp_GetTemperature(DallasSensor *Sensor); void DallasTemp_GetTemperature(DallasSensor *Sensor);
/**
* Читает семейный код датчика и проверяет его правильность
* @param Sensor - датчик
* @return Возвращает "1" если имеются проблемы с датчиком иначе "0"
*/
uint8_t DallasTemp_CheckError(DallasSensor *Sensor);
#endif /* DSTEMPERATURE_H */ #endif /* DSTEMPERATURE_H */

123
main.c
View File

@ -41,6 +41,14 @@
#define TM1637_DISP_OFF 0x00 // Display off #define TM1637_DISP_OFF 0x00 // Display off
#define TM1637_DISP_ON 0x08 // Display on #define TM1637_DISP_ON 0x08 // Display on
#define TM1637_BRIGHTNESS_1 1
#define TM1637_BRIGHTNESS_2 2
#define TM1637_BRIGHTNESS_3 3
#define TM1637_BRIGHTNESS_4 4
#define TM1637_BRIGHTNESS_5 5
#define TM1637_BRIGHTNESS_6 6
#define TM1637_BRIGHTNESS_7 7
#define dio_high() (PORT_TWI |= (_BV(PORT_TWI_DIO))) #define dio_high() (PORT_TWI |= (_BV(PORT_TWI_DIO)))
#define dio_low() (PORT_TWI &= (~_BV(PORT_TWI_DIO))) #define dio_low() (PORT_TWI &= (~_BV(PORT_TWI_DIO)))
#define dio_input() (DDR_TWI &= (~_BV(PORT_TWI_DIO))) #define dio_input() (DDR_TWI &= (~_BV(PORT_TWI_DIO)))
@ -48,6 +56,8 @@
#define clk_high() (PORT_TWI |= (_BV(PORT_TWI_CLK))) #define clk_high() (PORT_TWI |= (_BV(PORT_TWI_CLK)))
#define clk_low() (PORT_TWI &= (~_BV(PORT_TWI_CLK))) #define clk_low() (PORT_TWI &= (~_BV(PORT_TWI_CLK)))
#define get_symbol(index) (pgm_read_byte_near(&display_symbols[index]))
static const uint8_t display_symbols[] PROGMEM = static const uint8_t display_symbols[] PROGMEM =
{ {
0x3F, // 0 0x3F, // 0
@ -59,31 +69,37 @@ static const uint8_t display_symbols[] PROGMEM =
0x7D, // 6 0x7D, // 6
0x07, // 7 0x07, // 7
0x7F, // 8 0x7F, // 8
0x6F // 9 0x6F, // 9
}; };
void TWI_Start(void) { void TWI_Start(void) {
cli();
dio_high(); dio_high();
clk_high(); clk_high();
_delay_us(TWI_DELAY); _delay_us(TWI_DELAY);
dio_low(); dio_low();
_delay_us(TWI_DELAY); _delay_us(TWI_DELAY);
clk_low(); clk_low();
sei();
} }
void TWI_Stop(void) { void TWI_Stop(void) {
cli();
clk_low(); clk_low();
dio_low(); dio_low();
_delay_us(TWI_DELAY); _delay_us(TWI_DELAY);
clk_high(); clk_high();
_delay_us(TWI_DELAY); _delay_us(TWI_DELAY);
dio_high(); dio_high();
sei();
} }
uint8_t TWI_WriteByte(uint8_t byte) { uint8_t TWI_WriteByte(uint8_t byte) {
uint8_t i = 8; uint8_t i = 8;
uint8_t ack = 0; uint8_t ack = 0;
cli();
_delay_us(TWI_DELAY); _delay_us(TWI_DELAY);
do { do {
@ -109,6 +125,8 @@ uint8_t TWI_WriteByte(uint8_t byte) {
_delay_us(TWI_DELAY); _delay_us(TWI_DELAY);
dio_output(); dio_output();
sei();
return ack; return ack;
} }
@ -132,36 +150,105 @@ void TM1637_DisplaySymbol(uint8_t symbol, uint8_t pos) {
TWI_Stop(); TWI_Stop();
} }
void TM1637_DisplayUInt(uint16_t num) { void TM1637_DisplayLine(void) {
uint16_t tmp = num > 999 ? 999 : num;
uint8_t digits[TM1637_DIGITS_COUNT];
uint8_t i = TM1637_DIGITS_COUNT; uint8_t i = TM1637_DIGITS_COUNT;
do { do {
digits[i - 1] = tmp % 10; TM1637_DisplaySymbol(0x40, i - 1);
tmp /= 10;
} while (--i); } while (--i);
TM1637_DisplaySymbol(pgm_read_byte_near(&display_symbols[digits[0]]), 0);
TM1637_DisplaySymbol(pgm_read_byte_near(&display_symbols[digits[1]]), 1);
TM1637_DisplaySymbol(pgm_read_byte_near(&display_symbols[digits[2]]), 2);
} }
void MCU_Init(void) { void TM1637_DisplayInt(int16_t num) {
TM1637_Init(PORT_TWI_DIO, PORT_TWI_CLK, 1, TM1637_DISP_ON); uint8_t is_signed = num < 0;
int16_t tmp = num > 999 ? 999 : num;
uint8_t i = TM1637_DIGITS_COUNT;
if (is_signed) {
tmp = -tmp;
TM1637_DisplaySymbol(0x40, 0); // sign symbol
}
do {
if (is_signed && i == 1) break;
TM1637_DisplaySymbol(pgm_read_byte_near(&display_symbols[tmp % 10]), i - 1);
tmp /= 10;
} while (--i);
}
uint8_t get_int_length(uint16_t num) {
uint8_t l = 1;
while (num > 9) {
num /= 10;
l++;
}
return l;
}
// TODO сделать отображение минусовой температуры для этой функции
void TM1637_DisplayFixedNum(int16_t num, uint8_t frac, uint8_t presicion) {
uint8_t is_signed = (num < 0) | (num == 0 && frac > 0);
num = num > 999 ? 999 : num;
if (is_signed) {
num = -num;
}
uint8_t length = get_int_length(num);
uint8_t i = TM1637_DIGITS_COUNT, j = 0;
uint8_t buffer[TM1637_DIGITS_COUNT];
do {
buffer[i - 1] = num % 10;
num /= 10;
} while (--i);
if (length != 1) {
i = TM1637_DIGITS_COUNT - length;
} else {
i = 1;
}
while (i < TM1637_DIGITS_COUNT) {
// if (j == 0) {
//// if (is_signed) {
//// TM1637_DisplaySymbol(0x40, 0);
//// }
// i++;
// j++;
// continue;
// }
TM1637_DisplaySymbol(
(j == TM1637_DIGITS_COUNT - 1 - presicion && TM1637_DIGITS_COUNT != length)
? get_symbol(buffer[i]) | 0x80 // точка
: get_symbol(buffer[i]),
j);
i++;
j++;
}
TM1637_DisplaySymbol(get_symbol(frac), j);
} }
int main(void) { int main(void) {
MCU_Init();
DallasSensor Sensor_01; DallasSensor Sensor_01;
OneWire_ReadROM(Sensor_01.ROM); TM1637_Init(PORT_TWI_DIO, PORT_TWI_CLK, TM1637_BRIGHTNESS_2, TM1637_DISP_ON);
TM1637_DisplayLine();
while (1) { while (1) {
/**
* Проверка датчика
*/
if (DallasTemp_CheckError(&Sensor_01)) {
TM1637_DisplayLine();
continue;
}
/**
* Получение температуры и вывод на индикатор
*/
DallasTemp_GetTemperature(&Sensor_01); DallasTemp_GetTemperature(&Sensor_01);
TM1637_DisplayUInt(Sensor_01.TEMPERATURE); TM1637_DisplayFixedNum(Sensor_01.TEMPERATURE, Sensor_01.TEMPERATURE_FRACTION / 100, 1);
} }
return 0; return 0;
} }

4
nbproject/Makefile-genesis.properties
View File

@ -1,11 +1,11 @@
# #
#Thu Aug 03 22:47:35 MSK 2023 #Fri Aug 04 08:31:18 MSK 2023
default.languagetoolchain.version=7.3.0 default.languagetoolchain.version=7.3.0
default.Pack.dfplocation=/home/sergeyyarkov/.mchp_packs/Microchip/ATtiny_DFP/3.0.151 default.Pack.dfplocation=/home/sergeyyarkov/.mchp_packs/Microchip/ATtiny_DFP/3.0.151
default.com-microchip-mplab-nbide-toolchain-avr-AVRLanguageToolchain.md5=f7c8f2a9c7d7748a6cb97af5c32efadd default.com-microchip-mplab-nbide-toolchain-avr-AVRLanguageToolchain.md5=f7c8f2a9c7d7748a6cb97af5c32efadd
conf.ids=default conf.ids=default
default.languagetoolchain.dir=/opt/avr8-gnu-toolchain-linux_x86_64/bin default.languagetoolchain.dir=/opt/avr8-gnu-toolchain-linux_x86_64/bin
host.id=1f9t-t7j1-aq host.id=256x-epq9-v8
configurations-xml=5516afcd622aad1c1ae6784dba5612d3 configurations-xml=5516afcd622aad1c1ae6784dba5612d3
default.com-microchip-mplab-mdbcore-snap-SnapToolImpl.md5=eaa336cefb7fc46db8b50b7b2b6e54ca default.com-microchip-mplab-mdbcore-snap-SnapToolImpl.md5=eaa336cefb7fc46db8b50b7b2b6e54ca
com-microchip-mplab-nbide-embedded-makeproject-MakeProject.md5=6e02ca5e9f5042ffd365b42ab82d3a9b com-microchip-mplab-nbide-embedded-makeproject-MakeProject.md5=6e02ca5e9f5042ffd365b42ab82d3a9b

1
nbproject/private/private.xml
View File

@ -6,7 +6,6 @@
<file>file:/home/sergeyyarkov/Documents/Projects/Firmwares/AVR/attiny45v_thermometer.X/onewire.c</file> <file>file:/home/sergeyyarkov/Documents/Projects/Firmwares/AVR/attiny45v_thermometer.X/onewire.c</file>
<file>file:/home/sergeyyarkov/Documents/Projects/Firmwares/AVR/attiny45v_thermometer.X/dstemperature.h</file> <file>file:/home/sergeyyarkov/Documents/Projects/Firmwares/AVR/attiny45v_thermometer.X/dstemperature.h</file>
<file>file:/home/sergeyyarkov/Documents/Projects/Firmwares/AVR/attiny45v_thermometer.X/main.c</file> <file>file:/home/sergeyyarkov/Documents/Projects/Firmwares/AVR/attiny45v_thermometer.X/main.c</file>
<file>file:/opt/avr8-gnu-toolchain-linux_x86_64/avr/include/util/delay.h</file>
<file>file:/home/sergeyyarkov/Documents/Projects/Firmwares/AVR/attiny45v_thermometer.X/dstemperature.c</file> <file>file:/home/sergeyyarkov/Documents/Projects/Firmwares/AVR/attiny45v_thermometer.X/dstemperature.c</file>
</group> </group>
</open-files> </open-files>

33
onewire.h
View File

@ -19,11 +19,44 @@
#ifndef ONEWIRE_H #ifndef ONEWIRE_H
#define ONEWIRE_H #define ONEWIRE_H
/**
*
* @return
*/
uint8_t OneWire_Presence(void); uint8_t OneWire_Presence(void);
/**
*
* @param byte
*/
void OneWire_WriteByte(uint8_t byte); void OneWire_WriteByte(uint8_t byte);
/**
*
* @return
*/
uint8_t OneWire_ReadByte(); uint8_t OneWire_ReadByte();
/**
*
* @return
*/
uint8_t OneWire_SkipROM(); uint8_t OneWire_SkipROM();
/**
* Читает ПЗУ подчиненного устройства.
* Использовать только если на шине одно подчиненной устройство!
* @param buffer - куда складывать данные
* @return "1" - если успешно прочиталось, "0" - если устройство не ответило
*/
uint8_t OneWire_ReadROM(uint8_t *buffer); uint8_t OneWire_ReadROM(uint8_t *buffer);
/**
*
* @param buffer
* @param len
* @return
*/
uint8_t OneWire_CRC8_Update(uint8_t *buffer, size_t len); uint8_t OneWire_CRC8_Update(uint8_t *buffer, size_t len);
#endif /* ONEWIRE_H */ #endif /* ONEWIRE_H */