LPC824 breakout mbed sd文件系统

dadangjiasp

我的项目：
lpc824break mbed sd文件系统
硬件：LPC824breakout, ds1302,PH计
功能：LPC824breakout AD采集PH信息存储在sd卡中。
https://developer.mbed.org/users/dadangjia/code/LP...
#include "mbed.h"#include "DS1302.h"#include "SDFileSystem.h"Serial pc(P0_4,P0_0,921600);Ticker ticker; float sampleTime = 1.0;// Defines for the DS1302 timer module//#define INITIAL_RUN 1#define LED1    P0_15#define LED2    P0_16#define LED3    P0_17#define SCLK    P0_20#define IO      P0_21#define CE      P0_22SDFileSystem sd(P0_26, P0_25, P0_24, P0_15, "sd"); //MOSI, MISO, SCLK, SSEL. (SD Card) Tested on K64F, correct pins.DS1302 clk(SCLK, IO, CE); // ports for the DS1302 time keeperAnalogIn PH0(P0_6);  //PH传感器 A0AnalogIn AD1(P0_14);  //AD采集信号 A1float ad1= 0.00;float ph0= 0.00;char sd_flag;DigitalOut RedLed(LED1); // 工作指示灯，每秒闪灭一次DigitalOut GreenLed(LED2); // SD卡读取状态寄存器DigitalOut Blueled(LED3); // DHT11 read indicationvoid LPC824_ticker(){    RedLed=!RedLed;    ph0 = PH0.read() * 3300;     ad1 = AD1.read() * 3300;     time_t seconds = clk.time(NULL);    pc.printf(&quotH0:%.0f mVd,AD1:%.0f mV,%s\r\n",ph0,ad1,ctime(&seconds));        if(sd_flag)    {        GreenLed= 0;        FILE *fp = fopen("/sd/LPC824date/data001.csv", "a");        if(fp != NULL)         {            fprintf(fp, "%s\t%.0f\t%.0f\n", ctime(&seconds), ph0,ad1);             fclose(fp);             GreenLed= 0;          }        else         {             GreenLed= 1;                    }            }    }void sd_init(){    RedLed=1;    mkdir("/sd/LPC824date", 0777);    FILE *fp = fopen("/sd/LPC824date/data001.csv", "w");    if(fp == NULL) {        pc.printf("Could not open file for write, Please insert your SD CARD!\n");        GreenLed= 1;        sd_flag=0;        }     else      {         sd_flag = 1;         GreenLed= 0;     }      }int main() {       pc.printf("LPC824 sd-dh11-ph-ds1302 demo start\r\n");    #ifdef INITIAL_RUN        clk.set_time(1494675200); //2017.5.13.11.33    #endif    char storedByte = clk.recallByte(0);    clk.storeByte(0, storedByte + 1);     sd_init();     ticker.attach(&LPC824_ticker, sampleTime);       while(1)    {            }}