Revision 1:eb3bd21fba0b, committed 2017-03-22

Comitter:

ronaldhklee

Date:

Wed Mar 22 04:54:35 2017 +0000

Parent:

0:599009dbb3e5

Commit message:

Tobj_max = 60, Tobj_min = 0, Ta=50~0;

Changed in this revision

--- a/main.cpp	Tue Mar 21 07:29:14 2017 +0000
+++ b/main.cpp	Wed Mar 22 04:54:35 2017 +0000
@@ -3,30 +3,60 @@
 
 DigitalOut myled(LED1);
 
-int SAddr = 0;
+int SAddr = DEFAULT_SADDR;
 float temp = 0;
+char c;
+//uint16_t pwmreg;
 
 int main() {
+    if (MLX90614_EEPROM_Read(SAddr,EEPROM_T0MAX) != TOBJ_P60) 
+        MLX90614_EEPROM_Write(SAddr, EEPROM_T0MAX, TOBJ_P60);
+    if (MLX90614_EEPROM_Read(SAddr,EEPROM_T0MIN) != TOBJ_PM0)
+        MLX90614_EEPROM_Write(SAddr, EEPROM_T0MIN, TOBJ_PM0);
+    if (MLX90614_EEPROM_Read(SAddr,EEPROM_PWMCTRL) != DEFAULT_PWMCTRL)
+        MLX90614_EEPROM_Write(SAddr, EEPROM_PWMCTRL, DEFAULT_PWMCTRL);
+    if (MLX90614_EEPROM_Read(SAddr,EEPROM_TARANGE) != (uint16_t)(TAMB_P50 << 8 | TAMB_PM0))
+        MLX90614_EEPROM_Write(SAddr, EEPROM_TARANGE, (uint16_t)(TAMB_P50 << 8 | TAMB_PM0));
+    if (MLX90614_EEPROM_Read(SAddr,EEPROM_CONFIGREG1) != DEFAULT_CONFIGREG1)
+        MLX90614_EEPROM_Write(SAddr, EEPROM_CONFIGREG1, DEFAULT_CONFIGREG1);
+    //wait(5);
+    printf(" EEPROM_T0MAX = 0x%X\r\n", MLX90614_EEPROM_Read(SAddr,EEPROM_T0MAX));
+    printf(" EEPROM_T0MIN = 0x%X\r\n", MLX90614_EEPROM_Read(SAddr,EEPROM_T0MIN));
+    printf(" EEPROM_PWMCTRL = 0x%X\r\n", MLX90614_EEPROM_Read(SAddr,EEPROM_PWMCTRL));
+    printf(" EEPROM_TARANGE = 0x%X\r\n", MLX90614_EEPROM_Read(SAddr,EEPROM_TARANGE));
+    printf(" EEPROM_ECCOEF = 0x%X\r\n", MLX90614_EEPROM_Read(SAddr,EEPROM_ECCOEF));
+    printf(" EEPROM_CONFIGREG1 = 0x%X\r\n", MLX90614_EEPROM_Read(SAddr,EEPROM_CONFIGREG1));
     SAddr = MLX90614_SA_Read();
-    printf(" MLX90614 Slave Address Read = 0x%X. \n\r", SAddr);
-    if (SAddr == 0xff) 
+    printf(" EEPROM_SMBUSADDR = 0x%X. \n\r", SAddr);
+    if (SAddr == ERROR_ADDR_CRC8) 
     {
         SAddr = MLX90614_SA_Scan();
         printf(" MLX90614 Slave Address Find = 0x%X. \n\r", SAddr);
     }
-    
-    wait(0.1);   
-    do temp = getTempC_Ambi(SAddr); while(temp == 0xffffffff);
+    do temp = getTempC_Ambi(SAddr); while(temp == ERROR_TEMP_CRC8);
     printf(" Ambient temperature = %.2f\r\n", temp);
-    do temp = getTempC_Obj1(SAddr); while(temp == 0xffffffff);
+    do temp = getTempC_Obj1(SAddr); while(temp == ERROR_TEMP_CRC8);
     printf(" Object 1 temperature = %.2f\r\n", temp);
-    do temp = getTempC_Obj2(SAddr);  while(temp == 0xffffffff);
+    do temp = getTempC_Obj2(SAddr);  while(temp == ERROR_TEMP_CRC8);
     printf(" Object 2 temperature = %.2f\r\n", temp);
+    
+
+    fflush(stdin);  printf(" Press any Key......"); 
+    scanf("%c", &c);
 
     while(1) {
+        printf("\033[2J\033[1;1H"); fflush(stdout);
+        do temp = getTempC_Ambi(SAddr); while(temp == ERROR_TEMP_CRC8);
+        printf(" Ambient temperature = %.2f\r\n", temp);
+        do temp = getTempC_Obj1(SAddr); while(temp == ERROR_TEMP_CRC8);
+        printf(" Object 1 temperature = %.2f\r\n", temp);
+        do temp = getTempC_Obj2(SAddr);  while(temp == ERROR_TEMP_CRC8);
+        printf(" Object 2 temperature = %.2f\r\n", temp);
+        
         myled = 1; // LED is ON
-        wait(1.0); // 1000 ms
+        wait(0.5); // 1000 ms
+
         myled = 0; // LED is OFF
-        wait(1.0); // 1 sec
+        wait(0.5); // 1 sec
     }
 }

--- a/mlx90614.cpp	Tue Mar 21 07:29:14 2017 +0000
+++ b/mlx90614.cpp	Wed Mar 22 04:54:35 2017 +0000
@@ -37,7 +37,67 @@
     for (uint8_t cnt = 0; cnt < 3; cnt++) crcbuf[cnt+3] = (uint8_t)cmd[cnt];
     
     if (MLX90614_CRC8(crcbuf, 6) == (uint8_t)0x00) return cmd[0];
-    else return 0xff;
+    else return ERROR_ADDR_CRC8;
+}
+
+int MLX90614_EEPROM_Erase(int8_t curAddr, uint8_t eepromcmd)
+{
+    char cmd[4] = { 0 };
+    uint8_t crcbuf[4] = { 0 };
+    uint8_t writeAddr;
+    
+    writeAddr = (curAddr << 1) + 0;
+
+    crcbuf[0] = writeAddr;       //write Address
+    crcbuf[1] = cmd[0] = OPCODE_EEPROM | eepromcmd;
+    crcbuf[2] = cmd[1] = 0x00;
+    crcbuf[3] = cmd[2] = 0x00;
+                cmd[3] = MLX90614_CRC8(crcbuf, 4);
+    
+    return MLX90614_I2C.write(writeAddr, cmd, 4, true);
+}
+
+int MLX90614_EEPROM_Write(int8_t curAddr, uint8_t eepromcmd, uint16_t data)
+{
+    char cmd[4] = { 0 };
+    uint8_t crcbuf[4] = { 0 };
+    uint8_t writeAddr;
+    
+    MLX90614_EEPROM_Erase(curAddr, eepromcmd);
+    wait(0.1);
+    
+    writeAddr = (curAddr << 1) + 0;
+
+    crcbuf[0] = writeAddr;       //write Address
+    crcbuf[1] = cmd[0] = OPCODE_EEPROM | eepromcmd;
+    crcbuf[2] = cmd[1] = (uint8_t)(data & 0x00ff);
+    crcbuf[3] = cmd[2] = (uint8_t)((data & 0xff00) >> 8);
+                cmd[3] = MLX90614_CRC8(crcbuf, 4);
+    
+    MLX90614_I2C.write(writeAddr, cmd, 4, true);
+    wait(0.1);
+    
+    return 1;
+}
+
+uint16_t MLX90614_EEPROM_Read(uint8_t curAddr, uint8_t eepromcmd)
+{
+    char cmd[3] = { 0 };
+    uint8_t crcbuf[6] = { 0 };
+    uint8_t writeAddr, readAddr;
+    
+    writeAddr = (curAddr << 1) + 0;
+    readAddr = (curAddr << 1) + 1;
+
+    crcbuf[0] = writeAddr;       //write Address
+    crcbuf[1] = cmd[0] = OPCODE_EEPROM | eepromcmd;
+    crcbuf[2] = readAddr;       //read Address
+    MLX90614_I2C.write(writeAddr, cmd, 1, true);
+    MLX90614_I2C.read(readAddr, cmd, 3);
+    for (uint8_t cnt = 0; cnt < 3; cnt++) crcbuf[cnt+3] = (uint8_t)cmd[cnt];
+    
+    if (MLX90614_CRC8(crcbuf, 6) == (uint8_t)0x00) return (cmd[1]<<8)|cmd[0];
+    else return ERROR_ADDR_CRC8;
 }
 
 float getTempC_Ambi(uint8_t SAddr)
@@ -62,7 +122,7 @@
         return ((0.02*static_cast<float>((cmd[1]<<8)|cmd[0]))   //Kelvin
                  -273.15                                        //C
                  -0.18);                                        //(3.3V-3)*0.6/V
-    else return 0xffffffff;                                     //Error
+    else return ERROR_TEMP_CRC8;                                     //Error
 }
 
 float getTempC_Obj1(uint8_t SAddr)
@@ -87,7 +147,7 @@
         return ((0.02*static_cast<float>((cmd[1]<<8)|cmd[0]))   //Kelvin
                  -273.15                                        //C
                  -0.18);                                        //(3.3V-3)*0.6/V
-    else return 0xffffffff;                                     //Error
+    else return ERROR_TEMP_CRC8;                                     //Error
 }
 
 float getTempC_Obj2(uint8_t SAddr)
@@ -112,7 +172,7 @@
         return ((0.02*static_cast<float>((cmd[1]<<8)|cmd[0]))   //Kelvin
                  -273.15                                        //C
                  -0.18);                                        //(3.3V-3)*0.6/V
-    else return 0xffffffff;                                     //Error
+    else return ERROR_TEMP_CRC8;                                     //Error
 }
 
 float getTempC(uint8_t SAddr, uint8_t memAddr)
@@ -134,7 +194,7 @@
         return ((0.02*static_cast<float>((cmd[1]<<8)|cmd[0]))   //Kelvin
                  -273.15                                        //C
                  -0.18);                                        //(3.3V-3)*0.6/V
-    else return 0xffffffff;                                     //Error
+    else return ERROR_TEMP_CRC8;                                     //Error
 }
 
 float getTempF(uint8_t SAddr, uint8_t memAddr)
@@ -156,7 +216,7 @@
                   -273.15                                       //C
                   -0.18)                                        //(3.3V-3)*0.6/V
                   *1.8+32);                                     //F
-    else return 0xffffffff;                                     //Error
+    else return ERROR_TEMP_CRC8;                                     //Error
 }
 
 uint8_t MLX90614_CRC8(uint8_t *data, int length)

--- a/mlx90614.h	Tue Mar 21 07:29:14 2017 +0000
+++ b/mlx90614.h	Wed Mar 22 04:54:35 2017 +0000
@@ -16,6 +16,35 @@
 #define RAM_TA              0x06
 #define RAM_TOBJ1           0x07
 #define RAM_TOBJ2           0x08
+#define ERROR_ADDR_CRC8     0xFF
+#define ERROR_TEMP_CRC8     0xFFFFFFFF
+
+#define DEFAULT_PWMCTRL     0x0201
+#define DEFAULT_CONFIGREG1  0x1FB3
+
+// Tobj = (T + 273.15) * 100
+#define TOBJ_P120           0x9993      //+120 
+#define TOBJ_P100           0x91C3
+#define TOBJ_P80            0x89F3
+#define TOBJ_P70            0x860B
+#define TOBJ_P60            0x8223
+#define TOBJ_P50            0x7E3B
+#define TOBJ_PM0            0x6AB3
+#define TOBJ_M10            0x66CB
+#define TOBJ_M20            0x62E3      //-20
+
+//Tamb = ((T + 38.2) / 64) * 100
+//Ta = (Ta_max << 8) | Ta_min
+#define TAMB_P120           0xF7        //+120
+#define TAMB_P100           0xD8
+#define TAMB_P80            0xB9
+#define TAMB_P70            0xA9
+#define TAMB_P60            0x99
+#define TAMB_P50            0x8A
+#define TAMB_PM0            0x3C
+#define TAMB_M10            0x2C
+#define TAMB_M20            0x1C        //-20
+
 
 const uint8_t MLX90614_crc8_table[] =
 {
@@ -39,7 +68,10 @@
 
 uint8_t MLX90614_SA_Scan(void);
 uint8_t MLX90614_SA_Read(uint8_t curAddr = DEFAULT_SADDR);
-bool SA_Change(uint8_t curAddr, uint8_t newAddr);
+int MLX90614_EEPROM_Erase(int8_t curAddr, uint8_t eepromcmd);
+int MLX90614_EEPROM_Write(int8_t curAddr, uint8_t eepromcmd, uint16_t data);
+uint16_t MLX90614_EEPROM_Read(uint8_t curAddr, uint8_t eepromcmd);
+
 float getTempC_Ambi(uint8_t SAddr = DEFAULT_SADDR);
 float getTempC_Obj1(uint8_t SAddr = DEFAULT_SADDR);
 float getTempC_Obj2(uint8_t SAddr = DEFAULT_SADDR);