I2C通信模块的设计和“AT24C64 型号的 型EEPROM 芯片通信”实践

#include "ls1c102_ptimer.h" #include "ls1x_common.h" #include "ls1x_gpio.h" #include "ls1x_exti.h" #include "ls1x_latimer.h" #include "ls1x_rtc.h" #include "ls1c102_touch.h" #include "ls1x_string.h" #include "ls1x_wdg.h" #include "ls1x_uart.h" #include "ls1x_spi.h" #include "ls1c102_i2c.h" #include "Config.h" #include "ls1c102_touch.h" extern void cpu_sleep(void); extern void dma_start(INT32U source, INT32U count, INT32U mode); extern void dma_reset(void); unsigned int str2num(unsigned char *); int do_nothing() { return 0; } int do_d1(int argc, void *argv[]) { if((argc < 2)||(argc > 3)) { printf("\n usage: d1 <addr> <num>\n\r"); return 1; } uint32_t addr; int i, num; addr = str2num(argv[1]); if(argc == 2) num = 1; else num = str2num(argv[2]); for(i=0; i<num; i++) { if((i%8) == 0) printf("\n 0x%08x:\t", addr+i); printf(" %02x ", *(volatile uint8_t*)(addr+i)); } return 0; } int do_d4(int argc, void *argv[]) { if((argc < 2)||(argc > 3)) { printf("\n usage: d4 <addr> <num>\n\r"); return 1; } unsigned int addr; int i, num; addr = str2num(argv[1]); if(argc == 2) num = 1; else num = str2num(argv[2]); for(i=0; i<num; i++) { if((i%4) == 0) printf("\n0x%08x:\t", addr+i*4); printf(" %08x ", *(volatile unsigned int*)(addr+i*4)); } return 0; } int do_m1(int argc, void *argv[]) { unsigned int addr; unsigned char value; if(argc != 3) { printf("\n usage: m1 <addr> <value>\n\r"); return 1; } addr = str2num(argv[1]); value = (unsigned char)str2num(argv[2]); *(volatile unsigned char*)(addr) = value; return 0; } int do_m4(int argc, void *argv[]) { unsigned int addr; unsigned int value; if(argc != 3) { printf("\n usage: m4 <addr> <value>\n\r"); return 1; } addr = str2num(argv[1]); value = str2num(argv[2]); *(volatile unsigned int*)(addr) = value; return 0; } unsigned int str2num(unsigned char *s) { unsigned int num = 0; unsigned int radix; unsigned int chr; unsigned int i; if((*(s)=='0') && (*(s+1)=='x' || *(s+1)=='X')) { i = 2; radix = 16; } else if(*(s)=='0') { i = 1; radix = 8; } else { i = 0; radix = 10; } for(; *(s+i)!='\0'; i++) { chr = *(s+i); switch(radix){ case 16: if(chr>='0' && chr<='9') num = num*radix + (chr - '0'); else if(chr>='a' && chr<='f') num = num*radix + (chr - 'a' + 10); else if(chr>='A' && chr<='F') num = num*radix + (chr - 'A' + 10); else printf("illegal hex number...\n"); break; case 10: case 8: if(chr>='0' && chr<('0'+radix)) num = num*radix + (chr - '0'); else printf("illegal number...\n"); break; default: break; } } return num; } /*VPWM:0xbfec0020 0x309817b0 single signal period/2 */ /*VPWM:0xbfec0020 0x70a817b0 double signal period/2*/ /*VPWM:0xbfec0020 0x72980ff0 16Khz*/ int v_play(int argc, void *argv[]) { if(argc != 3) { printf("\n usage: v <addr> <num>\n\r"); return 1; } unsigned int addr, count; addr = str2num(argv[1]); count = str2num(argv[2]); dma_reset(); printf("VPWM dma ad test started \n"); dma_start(addr, count, 0x1); printf("VPWM dma ad test end\n"); return 0; } // touch show int touch_reg_show() { printf("\nTsensor:\n"); printf("TS_Ctrl = 0x%8x\n", TS_CTRL); printf("TS_OscTh = 0x%8x\n", TS_OSCTH); printf("TS_PollTim = 0x%8x\n", TS_POLLTIM); printf(" ChnAttr CntRes\n"); int i; for (i=0; i<12; i++) printf("[%2d] = 0x%8x 0x%8x\n", i, TS_CHNATTR(i), TS_CNTRES(i)); return 0; } int touch_value_show() { printf("\n 00 01 02 03 04 05 06 07 08 09 10 11\n"); int i; printf("basval"); for (i=0; i<12 ; i++) printf(" %4d", TOUCH_GetBaseVal(i)); printf("\ncntval"); for (i=0; i<12; i++) printf(" %4d", TOUCH_GetCountValue(i)); return 0; } int touch_test(int argc, void *argv[]) { if (!strcmp("init",argv[1])) { if (argc != 3) { printf("\n touch init <down_th>."); return 1; } printf("\n Touch Init"); INT8U down_th = str2num(argv[2]); TOUCH_Init(down_th); } else if (!strcmp("scan",argv[1]) & argc==2) { printf("\n Touch Scan"); TOUCH_EnableSingleScan(); Printf_CountVal(); } else if (!strcmp("down",argv[1])) { printf("\n Touch DownTh"); INT8U down_th = str2num(argv[2]); INT8U channel; if(argc == 3) //All Channel { for(channel=0; channel<CHANNEL_NUM; channel++) { TOUCH_SetDownTh(channel, down_th); } } else if (argc == 4) //Single Channel { channel = str2num(argv[3]); { TOUCH_SetDownTh(channel, down_th); } } else { printf("\n touch down <down_th> <channel>"); return 1; } } else if (!strcmp("poll",argv[1]) & argc==2) { printf("\n Touch Poll."); TOUCH_EnablePollScan(); } else if (!strcmp("show",argv[1]) & argc==2) { touch_reg_show(); touch_value_show(); } else { printf("\n Input Error."); printf("\nUsage: touch init <down_th> \ \n touch down <down_th> <channel> \ \n touch scan \ \n touch poll \ \n touch show"); return 1; } return 0; } int hpet(int argc, void *argv[]) { printf("\r\n hpet timer start....\n"); uint32_t periodic,cmp,stp; if(argc < 4) { TIM_Cmd(0); TIM_ITConfig(0); printf("\r\n Usage: hpet <periodic> <start_ms> <sec>"); return 1; } periodic = str2num(argv[1]); cmp = str2num(argv[2]); stp = str2num(argv[3]); TIM_InitTypeDef TIM_InitStruct; TIM_StructInit(&TIM_InitStruct); TIM_InitStruct.TIME_PERIODIC = periodic << 2; TIM_InitStruct.TIME_CMP = cmp * 7999; TIM_InitStruct.TIME_STP = stp * 8000000; TIM_Init(&TIM_InitStruct); return 0; } int latimer(int argc, void *argv[]) { uint32_t sec; printf("\r\n core timer start....argc:%d\n",argc); if(argc < 2) { Set_Timer_stop(); printf("\r\n Usage: latimer <sec>"); return 1; } sec = str2num(argv[1]); //Set_Timer_Init(sec*8000000); Set_Timer_Init(sec*10667000); return 0; } int delay(int argc, void *argv[]) { uint32_t flags,val; if(argc < 3) { printf("\r\n Usage: delay <mode:1:us,2:ms,3:s> <val>"); return 1; } flags = str2num(argv[1]); val = str2num(argv[2]); if (flags == 1) { delay_us(val); printf("\r\n%dus",val); } else if (flags == 2) { delay_ms(val); printf("\r\n%dms",val); }else if (flags == 3){ delay_s(val); printf("\r\n%ds",val); }else { printf("\r\n Usage: delay <mode:1:us,2:ms,3:s> <val>"); } return 0; } int wakeup(int argc, void *argv[]) { uint32_t sec; printf("\r\nTimer Wake Up start....argc:%d\n",argc); DisableInt(); if(argc < 2) { Wake_Set(0); printf("\r\n Usage: wakeup <sec>"); return 1; } sec = str2num(argv[1]); Wake_Set(sec); cpu_sleep(); return 0; } uint32_t a_to_n(uint8_t chr) //ascii to number { if (chr < 0x30 || chr > 0x39) { printf("\r\nwrong range of number!\r\n"); return -1; }