Revision 1:5b28969c451b, committed 2019-12-26

Comitter:

amarmay

Date:

Thu Dec 26 08:36:27 2019 +0000

Parent:

0:770fea48cb00

Commit message:

Eeprom

Changed in this revision

--- a/main.cpp	Fri Mar 03 11:36:09 2017 +0000
+++ b/main.cpp	Thu Dec 26 08:36:27 2019 +0000
@@ -7,315 +7,58 @@
 
 #define EEPROM_ADDR 0x0   // I2c EEPROM address is 0x00
 
-#define SDA p9            // I2C SDA pin
-#define SCL p10           // I2C SCL pin
+#define SDA I2C_SDA          // I2C SDA pin
+#define SCL I2C_SCL           // I2C SCL pin
 
 #define MIN(X,Y) ((X) < (Y) ? (X) : (Y))
 #define MAX(X,Y) ((X) > (Y) ? (X) : (Y))
 
-DigitalOut led2(LED2);
+
 
-typedef struct _MyData {
-                         int16_t sdata;
-                         int32_t idata;
-                         float fdata;
-                       } MyData;
 
-static void myerror(std::string msg)
-{
-  printf("Error %s\n",msg.c_str());
-  exit(1);
-}
 
-void eeprom_test(void)
-{
-  EEPROM ep(SDA,SCL,EEPROM_ADDR,EEPROM::T24C64);  // 24C64 eeprom with sda = p9 and scl = p10
-  uint8_t data[256],data_r[256];
-  int8_t ival;
-  uint16_t s;
-  int16_t sdata,sdata_r;
-  int32_t ldata[1024];
-  int32_t eeprom_size,max_size;
-  uint32_t addr;
-  int32_t idata,idata_r;
-  uint32_t i,j,k,l,t,id;
-  float fdata,fdata_r;
-  MyData md,md_r;
-    
-  eeprom_size = ep.getSize();
-  max_size = MIN(eeprom_size,256);
-  
-  printf("Test EEPROM I2C model %s of %d bytes\n\n",ep.getName(),eeprom_size);
-  
-  // Test sequential read byte (max_size first bytes)
-  for(i = 0;i < max_size;i++) {
-     ep.read(i,ival);
-     data_r[i] = ival;
-     if(ep.getError() != 0)
-       myerror(ep.getErrorMessage());
-  }
-  
-  printf("Test sequential read %d first bytes :\n",max_size);
-  for(i = 0;i < max_size/16;i++) {
-     for(j = 0;j < 16;j++) {
-        addr = i * 16 + j;
-        printf("%3d ",(uint8_t)data_r[addr]);
-     }
-     printf("\n");
-  }
-    
-    // Test sequential read byte (max_size last bytes)
-  for(i = 0;i < max_size;i++) {
-        addr = eeprom_size - max_size + i;
-    ep.read(addr,ival);
-    data_r[i] = ival;
-    if(ep.getError() != 0)
-      myerror(ep.getErrorMessage());
-  }
-  
-  printf("\nTest sequential read %d last bytes :\n",max_size);
-  for(i = 0;i < max_size/16;i++) {
-     for(j = 0;j < 16;j++) {
-        addr = i * 16 + j;
-        printf("%3d ",(uint8_t)data_r[addr]);
-     }
-     printf("\n");
-  }
-  
-  // Test write byte (max_size first bytes)
-  for(i = 0;i < max_size;i++)
-     data[i] = i;
-  
-  for(i = 0;i < max_size;i++) {
-     ep.write(i,(int8_t)data[i]);
-     if(ep.getError() != 0)
-       myerror(ep.getErrorMessage());
-  }
-  
-  // Test read byte (max_size first bytes)
-  for(i = 0;i < max_size;i++) {
-     ep.read(i,(int8_t&)ival);
-     data_r[i] = (uint8_t)ival;
-     if(ep.getError() != 0)
-       myerror(ep.getErrorMessage());
-  }
-  
-  printf("\nTest write and read %d first bytes :\n",max_size);
-  for(i = 0;i < max_size/16;i++) {
-     for(j = 0;j < 16;j++) {
-        addr = i * 16 + j;
-        printf("%3d ",(uint8_t)data_r[addr]);
-     }
-     printf("\n");
-  }
-  
-  // Test current address read byte (max_size first bytes)
-  ep.read((uint32_t)0,(int8_t&)ival); // current address is 0
-  data_r[0] = (uint8_t)ival;
-  if(ep.getError() != 0)
-    myerror(ep.getErrorMessage());
-  
-  for(i = 1;i < max_size;i++) {
-     ep.read((int8_t&)ival);
-     data_r[i] = (uint8_t)ival;
-     if(ep.getError() != 0)
-       myerror(ep.getErrorMessage());
-  }
-  
-  printf("\nTest current address read %d first bytes :\n",max_size);
-  for(i = 0;i < max_size/16;i++) {
-     for(j = 0;j < 16;j++) {
-        addr = i * 16 + j;
-        printf("%3d ",(uint8_t)data_r[addr]);
-     }
-     printf("\n");
-  }
-   
-  // Test sequential read byte (first max_size bytes)
-  ep.read((uint32_t)0,(int8_t *)data_r,(uint32_t) max_size);
-  if(ep.getError() != 0)
-    myerror(ep.getErrorMessage());
-  
-  printf("\nTest sequential read %d first bytes :\n",max_size);
-  for(i = 0;i < max_size/16;i++) {
-     for(j = 0;j < 16;j++) {
-        addr = i * 16 + j;
-        printf("%3d ",(uint8_t)data_r[addr]);
-     }
-     printf("\n");
-  }
-  
-  // Test write short, long, float 
-  sdata = -15202;
-    addr = eeprom_size - 16;
-  ep.write(addr,(int16_t)sdata); // short write at address eeprom_size - 16
-  if(ep.getError() != 0)
-    myerror(ep.getErrorMessage());
-  
-  idata = 45123;
-    addr = eeprom_size - 12;
-  ep.write(addr,(int32_t)idata); // long write at address eeprom_size - 12
-  if(ep.getError() != 0)
-    myerror(ep.getErrorMessage());
-    
-  fdata = -12.26;
-    addr = eeprom_size - 8;
-  ep.write(addr,(float)fdata); // float write at address eeprom_size - 8
-  if(ep.getError() != 0)
-    myerror(ep.getErrorMessage());
-  
-  // Test read short, long, float
-  printf("\nTest write and read short (%d), long (%d), float (%f) :\n",
-           sdata,idata,fdata);  
-  
-  ep.read((uint32_t)(eeprom_size - 16),(int16_t&)sdata_r);
-  if(ep.getError() != 0)
-    myerror(ep.getErrorMessage());
-  printf("sdata %d\n",sdata_r);
-  
-  ep.read((uint32_t)(eeprom_size - 12),(int32_t&)idata_r);
-  if(ep.getError() != 0)
-    myerror(ep.getErrorMessage());
-  printf("idata %d\n",idata_r);
-  
-  ep.read((uint32_t)(eeprom_size - 8),fdata_r);
-  if(ep.getError() != 0)
-    myerror(ep.getErrorMessage());
-  printf("fdata %f\n",fdata_r);
-  
-  // Test read and write a structure
-  md.sdata = -15203;
-  md.idata = 45124;
-  md.fdata = -12.27;
- 
-  ep.write((uint32_t)(eeprom_size - 32),(void *)&md,sizeof(md)); // write a structure eeprom_size - 32
-  if(ep.getError() != 0)
-    myerror(ep.getErrorMessage());
-    
-  printf("\nTest write and read a structure (%d %d %f) :\n",md.sdata,md.idata,md.fdata);
-  
-  ep.read((uint32_t)(eeprom_size - 32),(void *)&md_r,sizeof(md_r));
-  if(ep.getError() != 0)
-    myerror(ep.getErrorMessage());
-  
-  printf("md.sdata %d\n",md_r.sdata);
-  printf("md.idata %d\n",md_r.idata);
-  printf("md.fdata %f\n",md_r.fdata);
-    
-    // Test read and write of an array of the first max_size bytes
-    for(i = 0;i < max_size;i++)
-       data[i] = max_size - i - 1;
-    
-    ep.write((uint32_t)(0),data,(uint32_t)max_size);
-  if(ep.getError() != 0)
-    myerror(ep.getErrorMessage());
-    
-    ep.read((uint32_t)(0),data_r,(uint32_t)max_size);
-  if(ep.getError() != 0)
-    myerror(ep.getErrorMessage());
-    
-    printf("\nTest write and read an array of the first %d bytes :\n",max_size);
-    for(i = 0;i < max_size/16;i++) {
-     for(j = 0;j < 16;j++) {
-        addr = i * 16 + j;
-        printf("%3d ",(uint8_t)data_r[addr]);
-     }
-     printf("\n");
-  }
-    printf("\n");
-  
-  // Test write and read an array of int32
-  s = eeprom_size / 4;                // size of eeprom in int32
-  int ldata_size = sizeof(ldata) / 4; // size of data array in int32
-  l = s / ldata_size;                 // loop index
-  
-  // size of read / write in bytes
-  t = eeprom_size;
-  if(t > ldata_size * 4)
-    t = ldata_size * 4;
-  
-  printf("Test write and read an array of %d int32 (write entire memory) :\n",t/4);
+
 
-  // Write entire eeprom
-    if(l) {
-    for(k = 0;k < l;k++) {
-       for(i = 0;i < ldata_size;i++)
-          ldata[i] = ldata_size * k + i;
-        
-       addr = k * ldata_size * 4;
-       ep.write(addr,(void *)ldata,t);
-       if(ep.getError() != 0)
-         myerror(ep.getErrorMessage());
-    }  
-    
-      printf("Write OK\n");
-    
-    // Read entire eeprom
-      id = 0;
-    for(k = 0;k < l;k++) {
-       addr = k * ldata_size * 4;
-       ep.read(addr,(void *)ldata,t);
-       if(ep.getError() != 0)
-         myerror(ep.getErrorMessage());
-  
-       // format outputs with 8 words rows
-       for(i = 0;i < ldata_size / 8;i++) {
-                id++;
-          printf("%4d ",id);
-          for(j = 0;j < 8;j++) {
-             addr = i * 8 + j;
-             printf("%5d ",ldata[addr]);
-          }
-          printf("\n");
-       }
-    }
-  }
-    else {
-        for(i = 0;i < s;i++)
-       ldata[i] = i;
-        
-    addr = 0;
-    ep.write(addr,(void *)ldata,t);
-    if(ep.getError() != 0)
-      myerror(ep.getErrorMessage());
-        
-        printf("Write OK\n");
-    
-    // Read entire eeprom
-      id = 0;
-    
-    addr = 0;
-    ep.read(addr,(void *)ldata,t);
-    if(ep.getError() != 0)
-      myerror(ep.getErrorMessage());
-  
-    // format outputs with 8 words rows
-    for(i = 0;i < s / 8;i++) {
-             id++;
-       printf("%4d ",id);
-       for(j = 0;j < 8;j++) {
-          addr = i * 8 + j;
-          printf("%5d ",ldata[addr]);
-       }
-       printf("\n");
-    }
-    }
-  
-  // clear eeprom
-  printf("\nClear eeprom\n");
 
-  ep.clear();
-  if(ep.getError() != 0)
-    myerror(ep.getErrorMessage());
-    
-  printf("End\n");  
-    
-}
 
 int main() 
 {
-
-  eeprom_test();
+    printf("%dHz\r\n" ,SystemCoreClock);
+    
+    uint8_t data[12] = {'A','m','m','a','r',' ','M','a','y','0','0','0'};
+    uint8_t data_read[2048];
+    int8_t r;
+    
+    EEPROM ep(SDA, SCL, EEPROM_ADDR,EEPROM::T24C16);
+    
+    //ep.clear();
+    
+    ep.write(0, data, 12);
+    //ep.write(3, 7);
+    
+    
+    
+    ep.read(0, data_read, 2048);
     
-  return(0);
+    for (int i=0; i<2048; i++)
+    {
+        printf("EEPROM READ %X \r\n", data_read[i]);
+        printf("\r\n");
+    }
+    
+    ep.read(3, r);
+    
+    printf("EEPROM READ r %X \r\n", r);
+    
+    while(1) {
+        
+        
+        wait(4);
+        
+        printf("------------------------------------ \r\n");
+        printf("hello world \r\n");
+    }
+  
+    
+  
 }

--- a/mbed.bld	Fri Mar 03 11:36:09 2017 +0000
+++ b/mbed.bld	Thu Dec 26 08:36:27 2019 +0000
@@ -1,1 +1,1 @@
-http://mbed.org/users/mbed_official/code/mbed/builds/ad3be0349dc5
\ No newline at end of file
+https://os.mbed.com/users/mbed_official/code/mbed/builds/65be27845400
\ No newline at end of file