Diff: main.cpp

Revision:

0:a356dc5160aa

Child:

1:95752dbaadf5

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sat Mar 28 00:53:36 2020 +0000
@@ -0,0 +1,104 @@
+
+#include "mbed.h"
+#include "I2CEeprom.h"
+#include <iostream>
+
+namespace {
+    
+    I2C i2c1(I2C_SDA, I2C_SCL );
+    I2CEeprom eeprom(
+        i2c1,
+        0b10100000, // i2c bus address
+        64,         // page size
+        16 * 1024,  // memory size in bytes
+        5           // write cycle time in ms
+    );
+}
+
+template <typename T>
+bool storage_byte_read_write_test(size_t ee_address,T const & val)
+{
+    auto numWritten = eeprom.write(ee_address,val);
+    if(numWritten != sizeof(val) ){
+        std::cout << "failed to write eeprom\n";
+        return false;
+    }
+
+    T result;
+    auto numRead = eeprom.read(ee_address,result);
+    if ( numRead != sizeof(val)){
+        std::cout << "failed to read eeprom\n";
+        return false;
+    }
+    std::cout << "result = " << result << '\n';
+    return true;
+}
+
+bool storage_byte_read_write_test(size_t ee_address, const char* str, size_t len)
+{
+    auto numWritten = eeprom.write(ee_address,str,len);
+    if(numWritten != len ){
+        std::cout << "failed to write eeprom\n";
+        return false;
+    }
+ 
+    char* result = new char[len +1];
+    
+    if (! result){
+        std::cout << "malloc failed\n";
+        return false;
+    }
+    memset(result,'X',len);
+    result [len] = '\0';
+    
+    auto numRead = eeprom.read(ee_address,result,len);
+    if ( numRead != len){
+        std::cout << "failed to read eeprom\n";
+        delete [] result;
+        return false;
+    }
+    result [len] = '\0';
+    bool match = strncmp(str,result,len) ==0;
+    if ( match){
+        std::cout << "strings match\n";
+    }else{
+        std::cout << "strings don't match\n";
+    }
+    std::cout << "result = " << result << '\n';
+    delete [] result;
+    
+    return true;
+}
+
+int main()
+{
+    ThisThread::sleep_for(100U);
+    char val = 'J';
+    if ( storage_byte_read_write_test(0x21,val) ){
+        std::cout << "char -> Success!\n";
+    }
+    
+    //const char* str = "Hello*World!";
+    constexpr char str [] =
+    #if 0
+    "Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod "
+    "tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim "
+    "veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea "
+    "commodo consequat.";
+    #else
+   
+     "But I must explain to you how all this mistaken idea of denouncing "
+    "pleasure and praising pain was born and I will give you a complete "
+    "account of the system, and expound the actual teachings of the "
+    "great explorer of the truth, the master-builder of human happiness.";
+    #endif
+    
+    std::cout << "length of string = " << strlen(str) <<'\n';
+    
+     if ( storage_byte_read_write_test(0x5,str,strlen(str)+1) ){
+        std::cout << "c_string -> Success!\n";
+    }
+    
+    for(;;){;}
+    
+}
\ No newline at end of file