\u6700\u540e\uff0c\u5949\u4e0a\u5355\u7247\u673a\u91cc\u9762\u7684\u4ee3\u7801\u3002\u4e3a\u4e86\u5077\u61d2\uff0c\u6309\u952e\u7528\u4e2d\u65ad\u5904\u7406\u4e86\uff0c\u4f46\u662f\u5b9e\u9645\u4e0a\u4f60\u5e94\u8be5\u5728\u7a0b\u5e8f\u4e3b\u5faa\u73af\u91cc\u9762\u5904\u7406\u5b83\u3002\u53e6\u5916\u540c\u6837\u4e3a\u4e86\u5077\u61d2\uff0c\u5728\u8fd9\u91cc\u6211\u7528\u4e86 sprintf \uff0c\u5982\u679c\u4f60\u80fd\u82b1\u65f6\u95f4\u81ea\u5df1\u6784\u5efa\u4e00\u4e9b\u7b80\u5355\u7684\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u51fd\u6570\uff0c\u90a3\u4e48\u4f60\u7684\u76ee\u6807\u4ee3\u7801\u5c06\u6bd4\u6211\u7684\u5c0f\u5f97\u591a\uff08\u6211\u7684\u7ea6\u4e3a 4.5KB \uff09\u3002\u5f53\u7136\uff0c\u6700\u540e\u4ecd\u7136\u662f\u4e3a\u4e86\u5077\u61d2\uff0c\u6211\u628a\u51fd\u6570\u4f53\u76f4\u63a5\u5199\u5728\u4e86\u5934\u6587\u4ef6\u91cc\uff0c\u8fd9\u6837\u662f\u4e0d\u5bf9\u7684\uff0c\u8bf7\u52ff\u6a21\u4eff\u3002<\/strong><\/p>\n\u4e3b\u7a0b\u5e8f\uff1abattbench.c<\/p>\n
\u8fd9\u91cc\u7528\u4e86\u4e00\u7cfb\u5217 MEGA88PA \u91cc\u9762\u7279\u6709\u7684\u529f\u80fd\u6765\u5b8c\u6210\u7535\u6e90\u7ba1\u7406\uff0c\u51cf\u5c0f\u529f\u7387\u3002\u8001\u4e00\u70b9\u7684 MEGA8 \u53ef\u80fd\u6ca1\u6709\u8fd9\u4e9b\u529f\u80fd\u3002<\/p>\n
\r\n#include "include\/adc.h"\r\n#include "include\/lcdascii.h"\r\n#include "include\/intandled.h"\r\n#include "include\/common.h"\r\n#include <avr\/power.h>\r\n#include <avr\/wdt.h>\r\n#include <stdio.h>\r\n\r\n\/* TODO:\r\n * 1. Add BATT selection(4.2 - 3.3V, 4.2 - 2.7V, 1.4 - 0.9V)\r\n * 2. Add RLOAD settings\r\n *\/\r\n\r\n\/* Current load: 30.7 ohm @ working temp *\/\r\n#define RLOAD 30700 \/* Load resistance, mohm *\/\r\n#define VMIN 3299 \/* Stop at voltage, mv *\/\r\n#define MFREQ 4 \/* Sampling rate, Hz *\/\r\n\r\nvolatile uint8_t updinf;\r\nuint32_t mas = 0;\r\nuint32_t mws = 0;\r\nuint32_t adcmv = 0;\r\nchar strbuf[LCD_WCOL + 1];\r\nuint32_t tcount = 0;\r\nuint8_t intcyc = 0;\r\n\r\nvoid update_info(void) {\r\n updinf = 1;\r\n LCD_write_english_string(0, 0, "BATT Benchmark");\r\n \/* dmah = mas \/ 3600 * 10 = mas \/ 360 *\/\r\n sprintf(strbuf, "%4lu.%02lu mAh", (mas \/ 36) \/ 100, (mas \/ 36) % 100);\r\n LCD_write_english_string(0, 1, strbuf);\r\n sprintf(strbuf, "%4lu.%02lu Wh", (mws \/ 3600) \/ 1000, ((mws \/ 3600) % 1000) \/ 10);\r\n LCD_write_english_string(0, 2, strbuf);\r\n sprintf(strbuf, "%4lu.%02lu V", adcmv \/ 1000, (adcmv % 1000) \/ 10);\r\n LCD_write_english_string(0, 3, strbuf);\r\n sprintf(strbuf, "%7lu mA", (adcmv * 1000) \/ RLOAD);\r\n LCD_write_english_string(0, 4, strbuf);\r\n sprintf(strbuf, "%4lu:%02lu MM:SS", tcount \/ (4 * 60), (tcount % (4 * 60)) \/ 4);\r\n LCD_write_english_string(0, 5, strbuf);\r\n updinf = 0;\r\n}\r\n\r\nEMPTY_INTERRUPT(INT1_vect)\r\n\r\nISR(INT0_vect) {\r\n \/* provides a way to recover LCD in case it is messed up *\/\r\n if(updinf == 0) LCD_init(); \/* re-initialize LCD as user request *\/\r\n}\r\n\r\nISR(TIMER1_COMPA_vect) {\r\n adcmv = ADC_read_mvolts();\r\n if(adcmv > VMIN) {\r\n mas += (adcmv * (1000 \/ MFREQ)) \/ RLOAD;\r\n mws += ((adcmv * adcmv) \/ RLOAD) \/ MFREQ;\r\n tcount++;\r\n }\r\n intcyc++;\r\n if(intcyc % MFREQ == 0) update_info();\r\n if(intcyc % 2 == 0 && adcmv > VMIN) LED_ON();\r\n else LED_OFF();\r\n}\r\n\r\nint main(void) {\r\n LCD_init();\r\n KL_init();\r\n power_timer0_disable();\r\n power_timer2_disable();\r\n power_twi_disable();\r\n power_usart0_disable();\r\n wdt_disable();\r\n ADC_init_ch(7); \/* ADC7 is specially designed for battery voltage measurement *\/\r\n update_info();\r\n cli();\r\n SETBIT(TCCR1B, CS12); \/* set timer prescaler to 256 *\/\r\n SETBIT(TCCR1B, WGM12); \/* waveform configuration *\/\r\n OCR1A = (uint16_t)(F_CPU \/ (MFREQ * 256));\r\n SETBIT(TIMSK1, OCIE1A); \/* Output Compare Interrupt Enable (timer 1, OCR1A) *\/\r\n _delay_ms(500);\r\n sei(); \/* Set Enable Interrupts *\/\r\n while(1);\r\n return 0;\r\n}\r\n<\/pre>\nADC \u51fd\u6570\u5e93\uff1ainclude\/adc.h<\/p>\n
\r\n\r\n#ifndef __ADC_H__\r\n#define __ADC_H__\r\n\r\n#include "include\/common.h"\r\n#include <avr\/interrupt.h>\r\n\r\n#define ADC0 0b000\r\n#define ADC1 0b001\r\n#define ADC2 0b010\r\n#define ADC3 0b011\r\n#define ADC4 0b100\r\n#define ADC5 0b101\r\n#define ADC6 0b110\r\n#define ADC7 0b111\r\n#define AVREF 1100 \/* In mini-volts *\/\r\n\r\n\/* Function declarations *\/\r\nvoid ADC_init(void);\r\nvoid ADC_init_ch(uint8_t channel);\r\nuint16_t ADC_read_raw(void);\r\nuint16_t ADC_read_mvolts(void);\r\nuint16_t ADC_read_ch(uint8_t ch);\r\n\r\n\/* Functions *\/\r\n\r\n\/**********************************\r\n * ADC_init:\r\n * Initialize ADC with selected\r\n * channel. Can also be used to\r\n * switch between channels.\r\n * Parameters:\r\n * channel: Select ADC 0 - 7\r\n * Range:\r\n * channel: 0 - 7\r\n *********************************\/\r\nvoid ADC_init_ch(uint8_t channel) {\r\n \/\/ If channel is valid we should switch to it and continue\r\n if(channel > 7) return;\r\n cli();\r\n CLEARBIT(ADCSRA, ADEN);\r\n ADMUX |= channel;\r\n\r\n \/\/ Internal 2.65V reference with capacitor on pin AVref enabled\r\n SETBIT(ADMUX, REFS0);\r\n SETBIT(ADMUX, REFS1);\r\n\r\n \/\/ Clock \/ 128 speed for highest accuracy\r\n SETBIT(ADCSRA, ADPS0);\r\n SETBIT(ADCSRA, ADPS1);\r\n SETBIT(ADCSRA, ADPS2);\r\n\r\n \/\/ Enable ADC\r\n SETBIT(ADCSRA, ADEN);\r\n\r\n \/\/ Reset ADC\r\n CLEARBIT(ADCSRA, ADIE);\r\n CLEARBIT(ADCSRA, ADIF);\r\n CLEARBIT(ADCSRA, ADSC);\r\n\r\n sei();\r\n}\r\n\r\nvoid ADC_init(void) {\r\n \/\/ Internal 2.65V reference with capacitor on pin AVref enabled\r\n SETBIT(ADMUX, REFS0);\r\n SETBIT(ADMUX, REFS1);\r\n\r\n \/\/ Clock \/ 128 speed for highest accuracy\r\n SETBIT(ADCSRA, ADPS0);\r\n SETBIT(ADCSRA, ADPS1);\r\n SETBIT(ADCSRA, ADPS2);\r\n\r\n \/\/ Enable ADC\r\n SETBIT(ADCSRA, ADEN);\r\n}\r\n\r\nuint16_t ADC_read_raw(void) {\r\n SETBIT(ADCSRA, ADSC);\r\n while(CHECKBIT(ADCSRA, ADIF) == 0);\r\n return ADC;\r\n}\r\n\r\nuint16_t ADC_read_mvolts(void) {\r\n uint16_t adcr = ADC_read_raw();\r\n if((ADMUX & 7) == 7) {\r\n adcr = (((uint32_t)adcr) * AVREF) >> 7;\r\n adcr -= adcr >> 4;\r\n adcr -= adcr >> 6;\r\n adcr -= adcr >> 7;\r\n }\r\n else adcr = (((uint32_t)adcr) * AVREF) >> 10;\r\n adcr += adcr \/ 20; \/* Simple but effective calibration *\/\r\n return adcr;\r\n}\r\n\r\nuint16_t ADC_read_ch(uint8_t ch) {\r\n \/* Select ADC Channel ch must be 0 - 7 *\/\r\n ch &= 0b00000111;\r\n ADMUX &= 0b11100000;\r\n SETV(ADMUX, ch);\r\n\r\n \/* Start Single conversion *\/\r\n SETBIT(ADCSRA, ADSC);\r\n\r\n \/* Wait for conversion to complete *\/\r\n while(!(CHECKBIT(ADCSRA, ADIF)));\r\n\r\n \/***********************************\r\n * Clear ADIF by writing one to it\r\n * Note you may be wondering why we have write one to clear it\r\n * This is standard way of clearing bits in io as said in datasheets.\r\n * The code writes '1' but it result in setting bit to '0' !!!\r\n ***********************************\/\r\n SETBIT(ADCSRA, ADIF);\r\n\r\n return(ADC);\r\n}\r\n\r\n#endif \/* __ADC_H__ *\/\r\n<\/pre>\n\u901a\u7528\u5b8f\u5e93\uff1ainclude\/common.h<\/p>\n
\r\n#ifndef __M85110_COMMON_H__\r\n#define __M85110_COMMON_H__\r\n\r\n\/* Includes *\/\r\n#include <avr\/io.h>\r\n\/* #include <avr\/pgmspace.h> in case that program needs to read itself. *\/\r\n#include <util\/delay.h>\r\n\r\n\/* Macros *\/\r\n#define BIT7 0x80\r\n#define BIT6 0x40\r\n#define BIT5 0x20\r\n#define BIT4 0x10\r\n#define BIT3 0x08\r\n#define BIT2 0x04\r\n#define BIT1 0x02\r\n#define BIT0 0x01\r\n#define BIT(x) (1 << (x))\r\n#define SETBIT(x, y) (x |= BIT(y))\r\n#define CLEARBIT(x, y) (x &= ~ BIT(y))\r\n#define CHECKBIT(x, y) (x & BIT(y))\r\n#define SETV(x, y) (x |= y)\r\n#define CLEARV(x, y) (x &= ~y)\r\n#define CHECKV(x, y) (x & y)\r\n#define SLEEP() asm("sleep")\r\n\r\n#endif \/* __M85110_COMMON_H__ *\/\r\n<\/pre>\n\u4e2d\u65ad\u3001\u6309\u952e\u4e0e\u6307\u793a\u706f\u51fd\u6570\u5e93\uff1ainclude\/intandled.h<\/p>\n
\r\n#ifndef __INTnLED_H__\r\n#define __INTnLED_H__\r\n\r\n#include "include\/common.h"\r\n#include <avr\/interrupt.h>\r\n\r\n\/* IO pins setup *\/\r\n#define IOPORT PORTD\r\n#define IODIR DDRD\r\n#define INT_0 2\r\n#define INT_1 3\r\n#define LED_USER 6\r\n\r\n\/* Macros *\/\r\n#define LED_ON() (CLEARBIT(PORTD, LED_USER))\r\n#define LED_OFF() (SETBIT(PORTD, LED_USER))\r\n\r\n#ifndef INT_EXCEPTION_HANDLER\r\nEMPTY_INTERRUPT(__vector_default)\r\n#endif\r\n\r\nvoid KL_init(void) {\r\n cli();\r\n\r\n \/* Internal resistor \/ Charge before input *\/\r\n SETBIT(IOPORT, INT_0);\r\n SETBIT(IOPORT, INT_1);\r\n\r\n \/* Charge the de-bounce capacitor *\/\r\n \/* t = RC = 20kohm * 10uF = 200ms *\/\r\n \/* When IO port is configured as *\/\r\n \/* Output, Ro is not known. *\/\r\n _delay_ms(10);\r\n\r\n \/* Set input mode *\/\r\n CLEARBIT(IODIR, INT_0);\r\n CLEARBIT(IODIR, INT_1);\r\n\r\n \/* LED output *\/\r\n SETBIT(IODIR, LED_USER);\r\n LED_ON();\r\n\r\n \/* Rising-edge-triggered INT0 and INT1 *\/\r\n SETBIT(EICRA, ISC00);\r\n SETBIT(EICRA, ISC10);\r\n SETBIT(EICRA, ISC01);\r\n SETBIT(EICRA, ISC11);\r\n\r\n \/* Enable INT0 and INT1 *\/\r\n SETBIT(EIMSK, INT0);\r\n SETBIT(EIMSK, INT1);\r\n\r\n sei();\r\n}\r\n\r\n#endif \/* __INTnLED_H__ *\/\r\n<\/pre>\nLCD \u5b57\u4f53\u548c\u6e32\u67d3\u51fd\u6570\u5e93\uff1ainclude\/lcdascii.h<\/p>\n
\r\n#ifndef __LCD_ASCII_H__\r\n#define __LCD_ASCII_H__\r\n\r\n#include "include\/common.h"\r\n#include "include\/pcd8544.h"\r\n#include <avr\/pgmspace.h>\r\n\r\n\/**********************************\r\n * 6 x 8 font\r\n * 1 pixel space at left and bottom\r\n * index = ASCII - 32\r\n **********************************\/\r\n\r\nconst uint8_t asciifont[][6] PROGMEM = {\r\n { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, \/* ' ' *\/\r\n { 0x00, 0x00, 0x00, 0x2f, 0x00, 0x00 }, \/* '!' *\/\r\n { 0x00, 0x00, 0x07, 0x00, 0x07, 0x00 }, \/* '"' *\/\r\n { 0x00, 0x14, 0x7f, 0x14, 0x7f, 0x14 }, \/* '#' *\/\r\n { 0x00, 0x24, 0x2a, 0x7f, 0x2a, 0x12 }, \/* '$' *\/\r\n { 0x00, 0x62, 0x64, 0x08, 0x13, 0x23 }, \/* '%' *\/\r\n { 0x00, 0x36, 0x49, 0x55, 0x22, 0x50 }, \/* '&' *\/\r\n { 0x00, 0x00, 0x05, 0x03, 0x00, 0x00 }, \/* ''' *\/\r\n { 0x00, 0x00, 0x1c, 0x22, 0x41, 0x00 }, \/* '(' *\/\r\n { 0x00, 0x00, 0x41, 0x22, 0x1c, 0x00 }, \/* ')' *\/\r\n { 0x00, 0x14, 0x08, 0x3E, 0x08, 0x14 }, \/* '*' *\/\r\n { 0x00, 0x08, 0x08, 0x3E, 0x08, 0x08 }, \/* '+' *\/\r\n { 0x00, 0x00, 0x00, 0x50, 0x30, 0x00 }, \/* ',' *\/\r\n { 0x00, 0x08, 0x08, 0x08, 0x08, 0x08 }, \/* '-' *\/\r\n { 0x00, 0x00, 0x60, 0x60, 0x00, 0x00 }, \/* '.' *\/\r\n { 0x00, 0x20, 0x10, 0x08, 0x04, 0x02 }, \/* '\/' *\/\r\n { 0x00, 0x3E, 0x51, 0x49, 0x45, 0x3E }, \/* '0' *\/\r\n { 0x00, 0x00, 0x42, 0x7F, 0x40, 0x00 }, \/* '1' *\/\r\n { 0x00, 0x42, 0x61, 0x51, 0x49, 0x46 }, \/* '2' *\/\r\n { 0x00, 0x21, 0x41, 0x45, 0x4B, 0x31 }, \/* '3' *\/\r\n { 0x00, 0x18, 0x14, 0x12, 0x7F, 0x10 }, \/* '4' *\/\r\n { 0x00, 0x27, 0x45, 0x45, 0x45, 0x39 }, \/* '5' *\/\r\n { 0x00, 0x3C, 0x4A, 0x49, 0x49, 0x30 }, \/* '6' *\/\r\n { 0x00, 0x01, 0x71, 0x09, 0x05, 0x03 }, \/* '7' *\/\r\n { 0x00, 0x36, 0x49, 0x49, 0x49, 0x36 }, \/* '8' *\/\r\n { 0x00, 0x06, 0x49, 0x49, 0x29, 0x1E }, \/* '9' *\/\r\n { 0x00, 0x00, 0x36, 0x36, 0x00, 0x00 }, \/* ':' *\/\r\n { 0x00, 0x00, 0x56, 0x36, 0x00, 0x00 }, \/* ';' *\/\r\n { 0x00, 0x08, 0x14, 0x22, 0x41, 0x00 }, \/* '<' *\/\r\n { 0x00, 0x14, 0x14, 0x14, 0x14, 0x14 }, \/* '=' *\/\r\n { 0x00, 0x00, 0x41, 0x22, 0x14, 0x08 }, \/* '>' *\/\r\n { 0x00, 0x02, 0x01, 0x51, 0x09, 0x06 }, \/* '?' *\/\r\n { 0x00, 0x3E, 0x41, 0x4D, 0x52, 0x5E }, \/* '@' *\/\r\n { 0x00, 0x7C, 0x12, 0x11, 0x12, 0x7C }, \/* 'A' *\/\r\n { 0x00, 0x7F, 0x49, 0x49, 0x49, 0x36 }, \/* 'B' *\/\r\n { 0x00, 0x3E, 0x41, 0x41, 0x41, 0x22 }, \/* 'C' *\/\r\n { 0x00, 0x7F, 0x41, 0x41, 0x22, 0x1C }, \/* 'D' *\/\r\n { 0x00, 0x7F, 0x49, 0x49, 0x49, 0x41 }, \/* 'E' *\/\r\n { 0x00, 0x7F, 0x09, 0x09, 0x09, 0x01 }, \/* 'F' *\/\r\n { 0x00, 0x3E, 0x41, 0x49, 0x49, 0x7A }, \/* 'G' *\/\r\n { 0x00, 0x7F, 0x08, 0x08, 0x08, 0x7F }, \/* 'H' *\/\r\n { 0x00, 0x00, 0x41, 0x7F, 0x41, 0x00 }, \/* 'I' *\/\r\n { 0x00, 0x20, 0x40, 0x41, 0x3F, 0x01 }, \/* 'J' *\/\r\n { 0x00, 0x7F, 0x08, 0x14, 0x22, 0x41 }, \/* 'K' *\/\r\n { 0x00, 0x7F, 0x40, 0x40, 0x40, 0x40 }, \/* 'L' *\/\r\n { 0x00, 0x7F, 0x02, 0x0C, 0x02, 0x7F }, \/* 'M' *\/\r\n { 0x00, 0x7F, 0x04, 0x08, 0x10, 0x7F }, \/* 'N' *\/\r\n { 0x00, 0x3E, 0x41, 0x41, 0x41, 0x3E }, \/* 'O' *\/\r\n { 0x00, 0x7F, 0x09, 0x09, 0x09, 0x06 }, \/* 'P' *\/\r\n { 0x00, 0x3E, 0x41, 0x51, 0x21, 0x5E }, \/* 'Q' *\/\r\n { 0x00, 0x7F, 0x09, 0x19, 0x29, 0x46 }, \/* 'R' *\/\r\n { 0x00, 0x46, 0x49, 0x49, 0x49, 0x31 }, \/* 'S' *\/\r\n { 0x00, 0x01, 0x01, 0x7F, 0x01, 0x01 }, \/* 'T' *\/\r\n { 0x00, 0x3F, 0x40, 0x40, 0x40, 0x3F }, \/* 'U' *\/\r\n { 0x00, 0x1F, 0x20, 0x40, 0x20, 0x1F }, \/* 'V' *\/\r\n { 0x00, 0x3F, 0x40, 0x38, 0x40, 0x3F }, \/* 'W' *\/\r\n { 0x00, 0x63, 0x14, 0x08, 0x14, 0x63 }, \/* 'X' *\/\r\n { 0x00, 0x07, 0x08, 0x70, 0x08, 0x07 }, \/* 'Y' *\/\r\n { 0x00, 0x61, 0x51, 0x49, 0x45, 0x43 }, \/* 'Z' *\/\r\n { 0x00, 0x00, 0x7F, 0x41, 0x41, 0x00 }, \/* '[' *\/\r\n { 0x00, 0x02, 0x04, 0x08, 0x10, 0x20 }, \/* '\\' *\/\r\n { 0x00, 0x00, 0x41, 0x41, 0x7F, 0x00 }, \/* ']' *\/\r\n { 0x00, 0x04, 0x02, 0x01, 0x02, 0x04 }, \/* '^' *\/\r\n { 0x00, 0x40, 0x40, 0x40, 0x40, 0x40 }, \/* '_' *\/\r\n { 0x00, 0x00, 0x01, 0x02, 0x04, 0x00 }, \/* '`' *\/\r\n { 0x00, 0x20, 0x54, 0x54, 0x54, 0x78 }, \/* 'a' *\/\r\n { 0x00, 0x7F, 0x48, 0x44, 0x44, 0x38 }, \/* 'b' *\/\r\n { 0x00, 0x38, 0x44, 0x44, 0x44, 0x20 }, \/* 'c' *\/\r\n { 0x00, 0x38, 0x44, 0x44, 0x48, 0x7F }, \/* 'd' *\/\r\n { 0x00, 0x38, 0x54, 0x54, 0x54, 0x18 }, \/* 'e' *\/\r\n { 0x00, 0x08, 0x7E, 0x09, 0x01, 0x02 }, \/* 'f' *\/\r\n { 0x00, 0x0C, 0x52, 0x52, 0x52, 0x3E }, \/* 'g' *\/\r\n { 0x00, 0x7F, 0x08, 0x04, 0x04, 0x78 }, \/* 'h' *\/\r\n { 0x00, 0x00, 0x44, 0x7D, 0x40, 0x00 }, \/* 'i' *\/\r\n { 0x00, 0x20, 0x40, 0x44, 0x3D, 0x00 }, \/* 'j' *\/\r\n { 0x00, 0x7F, 0x10, 0x28, 0x44, 0x00 }, \/* 'k' *\/\r\n { 0x00, 0x00, 0x41, 0x7F, 0x40, 0x00 }, \/* 'l' *\/\r\n { 0x00, 0x7C, 0x04, 0x18, 0x04, 0x78 }, \/* 'm' *\/\r\n { 0x00, 0x7C, 0x08, 0x04, 0x04, 0x78 }, \/* 'n' *\/\r\n { 0x00, 0x38, 0x44, 0x44, 0x44, 0x38 }, \/* 'o' *\/\r\n { 0x00, 0x7E, 0x14, 0x12, 0x12, 0x0C }, \/* 'p' *\/\r\n { 0x00, 0x0C, 0x12, 0x12, 0x0A, 0x7E }, \/* 'q' *\/\r\n { 0x00, 0x7C, 0x08, 0x04, 0x04, 0x08 }, \/* 'r' *\/\r\n { 0x00, 0x48, 0x54, 0x54, 0x54, 0x20 }, \/* 's' *\/\r\n { 0x00, 0x04, 0x3F, 0x44, 0x40, 0x20 }, \/* 't' *\/\r\n { 0x00, 0x3C, 0x40, 0x40, 0x20, 0x7C }, \/* 'u' *\/\r\n { 0x00, 0x1C, 0x20, 0x40, 0x20, 0x1C }, \/* 'v' *\/\r\n { 0x00, 0x3C, 0x40, 0x30, 0x40, 0x3C }, \/* 'w' *\/\r\n { 0x00, 0x44, 0x28, 0x10, 0x28, 0x44 }, \/* 'x' *\/\r\n { 0x00, 0x06, 0x48, 0x48, 0x44, 0x3E }, \/* 'y' *\/\r\n { 0x00, 0x44, 0x64, 0x54, 0x4C, 0x44 }, \/* 'z' *\/\r\n { 0x00, 0x08, 0x36, 0x41, 0x41, 0x00 }, \/* '{' *\/\r\n { 0x00, 0x00, 0x00, 0x7F, 0x00, 0x00 }, \/* '|' *\/\r\n { 0x00, 0x41, 0x41, 0x36, 0x08, 0x00 }, \/* '}' *\/\r\n { 0x04, 0x02, 0x02, 0x04, 0x04, 0x02 }, \/* '~' *\/\r\n};\r\n\r\nPGM_P font6x8 PROGMEM = asciifont;\r\n\r\n\/* Function declarations *\/\r\nvoid LCD_write_char(uint8_t c);\r\nvoid LCD_write_english_string(uint8_t X, uint8_t Y, char *s);\r\n\r\n\/* Functions *\/\r\n\r\nvoid LCD_write_char(uint8_t c) {\r\n c -= 32;\r\n LCD_write_byte(pgm_read_byte(font6x8 + c * 6), 1);\r\n LCD_write_byte(pgm_read_byte(font6x8 + c * 6 + 1), 1);\r\n LCD_write_byte(pgm_read_byte(font6x8 + c * 6 + 2), 1);\r\n LCD_write_byte(pgm_read_byte(font6x8 + c * 6 + 3), 1);\r\n LCD_write_byte(pgm_read_byte(font6x8 + c * 6 + 4), 1);\r\n LCD_write_byte(pgm_read_byte(font6x8 + c * 6 + 5), 1);\r\n}\r\n\r\n\/**********************************\r\n * LCD_write_english_String:\r\n * This function prints English\r\n * (ASCII) strings on LCD, single\r\n * line only.\r\n * Parameters:\r\n * *s: The string.\r\n * X, Y: Position of the string.\r\n * Range:\r\n * X: 0 - 83\r\n * Y: 0 - 5\r\n *********************************\/\r\nvoid LCD_write_english_string(uint8_t X, uint8_t Y, char *s) {\r\n LCD_set_XY(X, Y);\r\n while (*s) {\r\n LCD_write_char(*s);\r\n s++;\r\n }\r\n}\r\n\r\n#endif \/* __LCD_ASCII_H__ *\/\r\n<\/pre>\nLCD \u663e\u793a\u5c4f\u9a71\u52a8\u51fd\u6570\u5e93\uff1ainclude\/pcd8544.h<\/p>\n
\r\n#ifndef __PCD8544_H__\r\n#define __PCD8544_H__\r\n\r\n#include "include\/common.h"\r\n\r\n\/* IO pins defination *\/\r\n#define LCD_PORT PORTB\r\n#define LCD_DIR DDRB\r\n#define LCD_IN PINB\r\n#define SCLK 0\r\n#define SDIN 6\r\n#define LCD_DC 7\r\n\r\n#define LCD_PORT_AUX PORTD\r\n#define LCD_DIR_AUX DDRD\r\n#define LCD_IN_AUX PIND\r\n#define LCD_CE 0\r\n#define LCD_RST 1\r\n\r\n\/* LCD Size and ASCII Information *\/\r\n#define LCD_ROW 84\r\n#define LCD_LINE 48\r\n#define LCD_WLN 6\r\n#define LCD_WCOL 14\r\n#define LCD_RAM ((LCD_ROW * LCD_LINE) \/ 8)\r\n#define LCD_WORDS (LCD_WLN * LCD_WCOL)\r\n\r\n\/* Macros *\/\r\n#define ENABLE_LCD() (SETBIT(LCD_PORT_AUX, LCD_CE))\r\n#define DISABLE_LCD() (CLEARBIT(LCD_PORT_AUX, LCD_CE))\r\n\r\n\/* Function declarations *\/\r\nvoid LCD_init(void);\r\nvoid LCD_clear(void);\r\nvoid LCD_set_XY(uint8_t x, uint8_t y);\r\nvoid LCD_write_byte(uint8_t byte, uint8_t cmd);\r\n\r\n\/* Functions *\/\r\n\r\n\/**********************************\r\n * LCD_write_byte:\r\n * Write data to LCD (Direct access)\r\n * Parameters:\r\n * byte: The byte of data to write.\r\n * cmd: Command mode true or false.\r\n *********************************\/\r\nvoid LCD_write_byte(uint8_t byte, uint8_t cmd) {\r\n unsigned char i;\r\n DISABLE_LCD();\r\n if(cmd == 0) CLEARBIT(LCD_PORT,LCD_DC); \/* command mode, LCD_DC = 0 *\/\r\n else SETBIT(LCD_PORT, LCD_DC); \/* data mode, LCD_DC = 1 *\/\r\n\r\n for(i = 0; i < 8; i++) {\r\n if(byte & 0x80) SETBIT(LCD_PORT, SDIN); \/* SDIN = 1 *\/\r\n else CLEARBIT(LCD_PORT, SDIN); \/* SDIN = 0 *\/\r\n\r\n CLEARBIT(LCD_PORT, SCLK); \/* SCLK = 0 *\/\r\n byte = byte << 1;\r\n SETBIT(LCD_PORT, SCLK); \/* SCLK = 1 *\/\r\n }\r\n\r\n ENABLE_LCD();\r\n}\r\n\r\nvoid LCD_clear(void) {\r\n unsigned int i;\r\n LCD_write_byte(0x0c, 0); \r\n LCD_write_byte(0x80, 0);\r\n for(i = 0; i < LCD_RAM; i++) LCD_write_byte(0, 1);\r\n}\r\n\r\nvoid LCD_set_XY(uint8_t X, uint8_t Y) {\r\n LCD_write_byte(0x40 | Y, 0); \/* column *\/\r\n LCD_write_byte(0x80 | X, 0); \/* row *\/\r\n}\r\n\r\nvoid LCD_init(void) {\r\n DDRB = 0xFF;\r\n PORTB = 0x3F;\r\n\r\n \/* Switch to output *\/\r\n SETBIT(LCD_DIR, SCLK);\r\n SETBIT(LCD_DIR, SDIN);\r\n SETBIT(LCD_DIR, LCD_DC);\r\n SETBIT(LCD_DIR_AUX, LCD_CE);\r\n SETBIT(LCD_DIR_AUX, LCD_RST);\r\n\r\n \/* Reset LCD with a low pulse *\/\r\n CLEARBIT(LCD_PORT_AUX, LCD_RST); \/* LCD_RST = 0 *\/\r\n _delay_us(1);\r\n SETBIT(LCD_PORT_AUX, LCD_RST); \/* LCD_RST = 1 *\/\r\n\r\n \/* Disable and re-enable LCD *\/\r\n DISABLE_LCD();\r\n _delay_us(1);\r\n ENABLE_LCD();\r\n _delay_us(1);\r\n\r\n \/* LCD Setup *\/\r\n LCD_write_byte(0x21, 0); \/* Set LCD mode *\/\r\n LCD_write_byte(0xc8, 0); \/* Set bias voltage *\/\r\n LCD_write_byte(0x06, 0); \/* Thermal correction *\/\r\n LCD_write_byte(0x16, 0); \/* 1:48 *\/\r\n LCD_write_byte(0x20, 0); \/* Use basic commands *\/\r\n LCD_clear();\r\n LCD_write_byte(0x0c, 0); \/* Normal mode *\/\r\n\r\n \/* Disable LCD *\/\r\n DISABLE_LCD();\r\n}\r\n\r\n#endif \/* __PCD8544_H__ *\/\r\n<\/pre>\n\u7f16\u8bd1\u811a\u672c\uff1aMakefile<\/p>\n
\u8fd9\u91cc\u9762\u5305\u542b\u4e86\u5bf9\u5e94\u7684\u7194\u4e1d\u4f4d\u7684\u8bbe\u7f6e\uff0cMakefile \u7684\u96cf\u5f62\u6765\u81ea\u4e8e ladyada \u7684 MiniPOV v2 \u9879\u76ee<\/a>\u3002\u7531\u4e8e avrdude \u7684\u6570\u636e\u5e93\u8f83\u8001\uff0c\u91cc\u9762\u6ca1\u6709 ATMEGA88PA \u7684\u4fe1\u606f\uff0c\u6240\u4ee5\u4f60\u9700\u8981\u628a avrdude.conf \u91cc\u9762\u6709\u5173 ATMEGA88 \u7684\u90e8\u5206\u590d\u5236\u4e00\u904d\uff0c\u5e76\u4e14\u4fee\u6539 part id \u3001description \u548c signature \uff0c\u6700\u540e\u628a\u4fee\u6539\u8fc7\u7684\u7248\u672c\u8ddf Makefile \u7f6e\u4e8e\u540c\u4e00\u76ee\u5f55\u3002<\/p>\n\r\nMCU = atmega88p\r\nF_CPU = 8000000 \t# 8 MHz\r\nAVRDUDE_PROGRAMMER = usbtiny\r\n\r\n# Default target.\r\nall: battbench.hex\r\n\r\n# Program the device w\/various programs\r\n\r\n# this is necessary if you're burning the AVR for the first time...\r\n# sets the proper fuse for 8MHz internal oscillator with no clk div\r\nburn-fuse:\r\n\t$(AVRDUDE) $(AVRDUDE_FLAGS) -u -U lfuse:w:0xe2:m -U hfuse:w:0xdd:m -U efuse:w:0x01:m\r\n\r\n# this programs the dependant hex file using our default avrdude flags\r\nprogram: battbench.hex\r\n\t$(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH)$<\r\n\r\nFORMAT = ihex \t\t# create a .hex file\r\n\r\nOPT = s\t\t\t# assembly-level optimization\r\n\r\n# Optional compiler flags.\r\n# -g: generate debugging information (for GDB, or for COFF conversion)\r\n# -O*: optimization level\r\n# -f...: tuning, see gcc manual and avr-libc documentation\r\n# -Wall...: warning level\r\n# -Wa,...: tell GCC to pass this to the assembler.\r\n# -ahlms: create assembler listing\r\nCFLAGS = -g -O$(OPT) \\\r\n-funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums \\\r\n-Wall -Wstrict-prototypes \\\r\n-DF_CPU=$(F_CPU) \\\r\n-Wa,-adhlns=$(<:.c=.lst) \\\r\n$(patsubst %,-I%,$(EXTRAINCDIRS)) \\\r\n-mmcu=$(MCU)\r\n\r\n# Set a "language standard" compiler flag.\r\nCFLAGS += -std=gnu99\r\n\r\n# Optional assembler flags.\r\n# -Wa,...: tell GCC to pass this to the assembler.\r\n# -ahlms: create listing\r\n# -gstabs: have the assembler create line number information; note that\r\n# for use in COFF files, additional information about filenames\r\n# and function names needs to be present in the assembler source\r\n# files -- see avr-libc docs [FIXME: not yet described there]\r\nASFLAGS = -Wa,-adhlns=$(<:.S=.lst),-gstabs \r\n\r\n# Optional linker flags.\r\n# -Wl,...: tell GCC to pass this to linker.\r\n# -Map: create map file\r\n# --cref: add cross reference to map file\r\nLDFLAGS = -Wl,-Map=$(TARGET).map,--cref\r\n\r\n# avr-size flags.\r\n# -C: friendly output\r\nSIZEFLAGS = -C --mcu=$(MCU)\r\n\r\n# ---------------------------------------------------------------------------\r\n# Programming support using avrdude.\r\nAVRDUDE = avrdude\r\n\r\nAVRDUDE_WRITE_FLASH = -U flash:w:\r\n\r\nAVRDUDE_FLAGS = -p $(MCU) -c $(AVRDUDE_PROGRAMMER) -C .\/avrdude.conf\r\n\r\n# ---------------------------------------------------------------------------\r\n# Define directories, if needed.\r\nDIRAVR = c:\/winavr\r\nDIRAVRBIN = $(DIRAVR)\/bin\r\nDIRAVRUTILS = $(DIRAVR)\/utils\/bin\r\nDIRINC = .\r\nDIRLIB = $(DIRAVR)\/avr\/lib\r\n\r\n# Define programs and commands.\r\nCC = avr-gcc\r\nOBJCOPY = avr-objcopy\r\nOBJDUMP = avr-objdump\r\nSIZE = avr-size\r\nREMOVE = rm -f\r\n\r\n# Define all object files.\r\nOBJ = $(SRC:.c=.o) $(ASRC:.S=.o) \r\n\r\n# Define all listing files.\r\nLST = $(ASRC:.S=.lst) $(SRC:.c=.lst)\r\n\r\n# Combine all necessary flags and optional flags.\r\n# Add target processor to flags.\r\nALL_CFLAGS = -I. $(CFLAGS)\r\nALL_ASFLAGS = -mmcu=$(MCU) -I. -x assembler-with-cpp $(ASFLAGS)\r\n\r\n# Create final output files (.hex) from ELF output file.\r\n%.hex: %.elf\r\n\t@$(OBJCOPY) -O $(FORMAT) -R .eeprom $< $@\r\n\r\n# Link: create ELF output file from object files.\r\n%.elf: %.o\r\n\t@$(CC) $(ALL_CFLAGS) $< --output $@ $(LDFLAGS)\r\n\t@$(SIZE) $(SIZEFLAGS) $@\r\n\r\n# Compile: create object files from C source files.\r\n%.o : %.c\r\n\t@$(CC) -c $(ALL_CFLAGS) $< -o $@\r\n\r\n# Compile: create assembler files from C source files.\r\n%.s : %.c\r\n\t@$(CC) -S $(ALL_CFLAGS) $< -o $@\r\n\r\n# Assemble: create object files from assembler source files.\r\n%.o : %.S\r\n\t@$(CC) -c $(ALL_ASFLAGS) $< -o $@\r\n\r\n# Target: clean project.\r\nclean:\r\n\t$(REMOVE) *.hex\r\n\t$(REMOVE) *.lst\r\n\t$(REMOVE) *.obj\r\n\t$(REMOVE) *.elf\r\n\t$(REMOVE) *.o\r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"\u5f53\u6211\u624b\u4e0a\u7684\u65b0\u8001\u9502\u7535\u6c60\u8d8a\u6765\u8d8a\u591a\u7684\u65f6\u5019\uff0c\u6211\u5c31\u5f88\u60f3\u7ec4\u88c5\u4e00\u53f0\u673a\u5668\u6765\u6d4b\u5b9a\u5b83\u4eec\u7684\u7535\u91cf\u4e86\u3002\u4e8e\u662f\u5c31\u6709\u4e86\u4e0b\u9762\u7684\u73a9\u610f\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false},"categories":[8,9],"tags":[],"_links":{"self":[{"href":"http:\/\/blog.dword1511.info\/index.php?rest_route=\/wp\/v2\/posts\/301"}],"collection":[{"href":"http:\/\/blog.dword1511.info\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/blog.dword1511.info\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/blog.dword1511.info\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/blog.dword1511.info\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=301"}],"version-history":[{"count":10,"href":"http:\/\/blog.dword1511.info\/index.php?rest_route=\/wp\/v2\/posts\/301\/revisions"}],"predecessor-version":[{"id":2723,"href":"http:\/\/blog.dword1511.info\/index.php?rest_route=\/wp\/v2\/posts\/301\/revisions\/2723"}],"wp:attachment":[{"href":"http:\/\/blog.dword1511.info\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=301"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/blog.dword1511.info\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=301"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/blog.dword1511.info\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=301"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
![\"\"](\"http:\/\/blog.dword1511.info\/wp-uploads\/2012\/09\/mega5110lcd.png\" "\\"mega5110lcd\\"")
<\/a><\/p>\n