Revision 1:c5e56e2580bf, committed 2015-05-04

Comitter:

onaka

Date:

Mon May 04 07:10:55 2015 +0000

Parent:

0:56d642e39289

Commit message:

revision 1

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Log.cpp	Mon May 04 07:10:55 2015 +0000
@@ -0,0 +1,114 @@
+#include "Log.h"
+
+Log::Log(PinName rx, PinName tx, PinName mosi, PinName miso, PinName sck, PinName cs, const char* name) :
+    _device(rx, tx), _sd(mosi, miso, sck, cs, name){
+    buf_send.initialize_buffer();
+    _device.attach(this, &Log::int_serial_tx, Serial::TxIrq);
+}
+
+int Log::initialize_sdlog(const char* str){
+    char filename[15];
+    int n = find_last();
+    if(n < 0) return 0;
+    
+    //ログ番号を+1してファイルを新規作成
+    //ファイル名は"logXXX.csv"
+    sprintf(filename, "/sd/log%03d.csv", n+1);
+    fp = fopen(filename, "w");
+    
+    _device.printf(str);
+    fprintf(fp, str);
+    return 1;
+}
+
+void Log::close(){
+    wait(0.5);
+    fclose(fp);
+}
+
+//SDカード内からログ番号の最大値を取得する関数
+int Log::find_last() {
+    int i, n = 0;
+    char c;
+    DIR *dp;
+    struct dirent *dirst;
+    dp = opendir("/sd/");
+    if (!dp){
+        printf("Could not open directry\n");
+        return -1;
+    }
+    while((dirst = readdir(dp)) != NULL) {
+        if(sscanf(dirst->d_name, "log%03d.csv%c", &i, &c) == 1 && i>n) {
+            n = i;
+        }
+    }
+    closedir(dp);
+    return n;
+}
+
+void Log::puts(const char* str){
+    int16_t len=strlen(str);
+    int16_t capa=buf_send.buffer_capacity();
+    bool empty=buf_send.is_buffer_empty();
+    char ch;
+    if(len>capa){
+        len=capa;
+    }
+    buf_send.write_buffer((const uint8_t*)str, 0, len);
+    if((_device.writeable()) && (empty)){
+        ch=buf_send.read_buffer_byte();
+        _device.putc(ch);
+        fputc(ch, fp);
+    } 
+}
+
+void Log::putc(char ch){
+    int16_t capa=buf_send.buffer_capacity();
+    if(capa==0) return;
+    buf_send.write_buffer_byte(ch);
+}
+
+void Log::write_data(uint8_t* buf, int16_t size){
+    int capa=buf_send.buffer_capacity();
+    if(size>capa){
+        size=capa;
+    }
+    buf_send.write_buffer(buf, 0, size);
+}
+
+bool Log::is_empty(){
+    return buf_send.is_buffer_empty();
+}
+
+int16_t Log::recieve_buffer_size(){
+    return buf_recieve.buffer_size();
+}
+
+int16_t Log::getc(){
+    if(buf_recieve.is_buffer_empty()){
+        return -1;
+    }
+    return buf_recieve.read_buffer_byte();
+}
+
+int16_t Log::read_data(uint8_t* buf, int16_t size){
+    int len=buf_recieve.buffer_size();
+    if(size>len){
+        size=len;
+    }
+    buf_recieve.read_buffer(buf, 0, size);
+    return size;
+}
+
+char Log::int_tx(){
+    return buf_send.read_buffer_byte();
+}
+
+void Log::int_serial_tx(){
+    char ch;
+    while((_device.writeable()) && (buf_send.is_buffer_empty()==false)){
+        ch=buf_send.read_buffer_byte();
+        _device.putc(ch);
+        fputc(ch, fp);
+    }
+}
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Log.h	Mon May 04 07:10:55 2015 +0000
@@ -0,0 +1,37 @@
+//**** Log.h ****
+//ログをリングバッファを用いて、
+//シリアル送信、SDカード出力を行う
+//***************
+
+#ifndef LOG_H_ 
+#define LOG_H_ 
+
+#include "mbed.h"
+#include "SDFileSystem.h"
+#include "RingBuffer.h"
+
+class Log{
+public:
+    Log(PinName rx, PinName tx, PinName mosi, PinName miso, PinName sck, PinName cs, const char* name);
+    int initialize_sdlog(const char* str);
+    void close();
+    int find_last();
+    void puts(const char *str);
+    void putc(char ch);
+    void write_data(uint8_t* buf, int16_t size);
+    bool is_empty();
+    int16_t recieve_buffer_size();
+    int16_t getc();
+    int16_t read_data(uint8_t* buf, int16_t size);
+    char int_tx();
+    void int_serial_tx();
+
+protected:
+    SDFileSystem _sd;
+    FILE *fp;
+    Serial _device;
+    RingBuffer buf_send;
+    RingBuffer buf_recieve;
+};
+
+#endif /* LOG_H_ */
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/RingBuffer.cpp	Mon May 04 07:10:55 2015 +0000
@@ -0,0 +1,63 @@
+#include "RingBuffer.h"
+
+void RingBuffer::initialize_buffer(){
+    start=0;
+    end=0;
+}
+
+int16_t RingBuffer::buffer_size(){
+    if(end >= start){
+        return end - start;
+    }
+    return RING_BUFFER_SIZE - (start - end);
+}
+
+uint8_t RingBuffer::read_buffer_byte(){
+    uint8_t a;
+    a=buffer[start];
+    start=(start+1)%RING_BUFFER_SIZE;
+    return a;
+}
+
+int16_t RingBuffer::read_buffer_short(){
+    int16_t a, b;
+    a=buffer[start];
+    b=buffer[(start+1)%RING_BUFFER_SIZE];
+    start=(start+2)%RING_BUFFER_SIZE;
+    return (a&0xff)|(b<<8);
+}
+
+void RingBuffer::read_buffer(uint8_t buf[], int16_t offset, int16_t size){
+    int16_t i;
+    uint8_t* p=buf+offset;
+    
+    for(i=0; i<size; i++){
+        *(p++)=buffer[start];
+        start=(start+1)%RING_BUFFER_SIZE;
+    }
+}
+
+int16_t RingBuffer::buffer_capacity(){
+    if(end >= start){
+        return RING_BUFFER_SIZE-(end-start)-1;
+    }
+    return (start-end)-1;
+}
+
+void RingBuffer::write_buffer_byte(uint8_t ch){
+    buffer[end]=ch;
+    end=(end+1)%RING_BUFFER_SIZE;
+}
+
+void RingBuffer::write_buffer(const uint8_t buf[], int16_t offset, int16_t size){
+    int16_t i;
+    const uint8_t* p=buf+offset;
+    for(i=0; i<size; i++){
+        buffer[end]=*(p++);
+        end=(end+1)%RING_BUFFER_SIZE;
+    }
+}
+
+bool RingBuffer::is_buffer_empty(){
+    return (start==end);
+}
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/RingBuffer.h	Mon May 04 07:10:55 2015 +0000
@@ -0,0 +1,26 @@
+#ifndef RING_BUFFER_H_
+#define RING_BUFFER_H_
+
+#include "mbed.h"
+
+#define RING_BUFFER_SIZE 512
+
+class RingBuffer{
+public:
+    void initialize_buffer();
+    int16_t buffer_size();
+    uint8_t read_buffer_byte();
+    int16_t read_buffer_short();
+    void read_buffer(uint8_t buf[], int16_t offset, int16_t size); 
+    int16_t buffer_capacity();
+    void write_buffer_byte(uint8_t ch);
+    void write_buffer(const uint8_t buf[], int16_t offset, int16_t size);
+    bool is_buffer_empty();
+
+protected:
+    uint8_t buffer[RING_BUFFER_SIZE];
+    int16_t start;
+    int16_t end;
+};
+
+#endif /* RING_BUFFER_H_ */
\ No newline at end of file

--- a/main.cpp	Wed Apr 22 06:57:07 2015 +0000
+++ b/main.cpp	Mon May 04 07:10:55 2015 +0000
@@ -1,63 +1,42 @@
 #include "mbed.h"
-#include "SDFileSystem.h"
+#include "Log.h"
 
 DigitalIn mybutton(USER_BUTTON);
 Serial pc(SERIAL_TX, SERIAL_RX);
 
-SDFileSystem sd(SPI_MOSI, SPI_MISO, SPI_SCK, SPI_CS, "sd");
-FILE *fp;
+Log logger(SERIAL_TX, SERIAL_RX, SPI_MOSI, SPI_MISO, SPI_SCK, SPI_CS, "sd");
 
 Ticker timer;
-static double t;    //時間t
-
-//SDカード内からログ番号の最大値を取得する関数
-int find_last() {
-    int i, n = 0;
-    DIR *dp;
-    struct dirent *dirst;
-    dp = opendir("/sd/");
-    if (!dp){
-        printf("Could not open directry\n");
-        return -1;
-    }
-    while((dirst = readdir(dp)) != NULL) {
-        if(sscanf(dirst->d_name, "log%03d.csv", &i) == 1 && i>n) {
-            n = i;
-        }
-    }
-    closedir(dp);
-    return n;
-}
-
-void Int_Timer() {
-    //ボタンが押されているかどうかをログする
-    fprintf(fp, "%.1f,%d\n", t, (int)mybutton);
-    t += 0.1;
-}
+void Int_Timer();
+static double t;
 
 int main() {
-    char filename[15];
-    int n = find_last();
-    if(n < 0) return 0;
-    
-    //ログ番号を+1してファイルを新規作成
-    //ファイル名は"logXXX.csv"
-    sprintf(filename, "/sd/log%03d.csv", n+1);
-    fp = fopen(filename, "w");
-    
-    printf("Start writing!\n");
-    fprintf(fp, "time,x\n");
-    
-    //0.1s間隔のタイマー割り込み
+    /** ログのタイトル行 **/
+    char* str="time,button\n";
+    if(!(logger.initialize_sdlog(str))){
+        return 0;
+    }
+
+//    printf("Start!\n");
     timer.attach(&Int_Timer, 0.1);
     
     t = 0.0;
-    //10.0sで終了
-    while(t < 10.0){
+    while(1){
+        if(t > 10.0){
+            timer.detach();
+            break;
+        }
     }
 
-    timer.detach();
-    fclose(fp);
+    logger.close();
     printf("Finish!\n");
 }
- 
\ No newline at end of file
+
+
+void Int_Timer() {
+    char buf[20];
+    /** ログをとりたい値を記入 **/
+    sprintf(buf, "%.1f,%d\n", t, (int)mybutton);
+    logger.puts(buf);
+    t += 0.1;
+}
\ No newline at end of file

--- a/mbed.bld	Wed Apr 22 06:57:07 2015 +0000
+++ b/mbed.bld	Mon May 04 07:10:55 2015 +0000
@@ -1,1 +1,1 @@
-http://mbed.org/users/mbed_official/code/mbed/builds/433970e64889
\ No newline at end of file
+http://mbed.org/users/mbed_official/code/mbed/builds/8ab26030e058
\ No newline at end of file