LPC824 breakout mbed sd文件系统

dadangjiasp · 发表于 2017-6-9 13:26:18

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(&quot

H0:%.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) { }}

LPC824 breakout mbed sd文件系统

站长推荐 /2