rainbow

Dependencies:   mbed FastPWM

Revision:
243:30896263bd8b
Parent:
242:b235d67d25ba
Child:
244:e9c5ec04e378
--- a/I2C_AS5510/I2C_AS5510.cpp	Thu Apr 07 06:18:38 2022 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,100 +0,0 @@
-#include "mbed.h"
-#include "setting.h"
-
-void look_for_hardware_i2c()
-{
-    //pc.printf("\r\n\n\n");
-    //pc.printf("Note I2C address 0x1C used by FXOS8700CQ 3-axis accelerometer and 3-axis magetometer\r\n");
-    //pc.printf("Start hardware search..... \r\n");
-
-    int count = 0;
-    for (int address=12; address<256; address+=2) {
-        if (!i2c.write(address, NULL, 0)) {         // 0 returned is OK
-            //pc.printf(" - I2C device found at address 0x%02X\n\r", address >>1);
-            count++;
-        }
-    }
-    //pc.printf("%d devices found \n\r", count);
-}
-
-void init_as5510(int i2c_address)
-{
-    int i2c_adrs=0;
-    char idata[2];
-    int result=0;
-
-    //pc.printf("\r\n");
-    //pc.printf("Start AS5510 init.. \r\n");
-
-    i2c_adrs= (i2c_address << 1);                   // AS5510 Slave address lsb= 0 for write
-
-    //---------- Magnet selection --------------------------------
-    //----0x00= <50mT-----------Strong magnet
-    //----0x01= <25mT
-    //----0x02= <18.7mT
-    //----0x03= <12.5mT---------Weak magnet
-    //-----------------------------------------------------------
-    idata[0]=0x0B;                                  // Register for Sensitivity
-    idata[1]=0x00;                                  // Byte
-    result= i2c.write(i2c_adrs, idata, 2, 0);       // Now write_sensitivity
-//    if (result != 0) pc.printf("No ACK bit! (09)\n\r");
-
-    //----------- Operation mode selection------------------------
-    idata[0]=0x02;                                  // 0x02 address setup register for operation, speed, polarity
-    idata[1]=0x04;                                  // Normal Operation, Slow mode (1), NORMAL Polarity (0), Power Up (0)
-    result= i2c.write(i2c_adrs, idata, 2, 0);       // Now write_operation
-//    if (result != 0) pc.printf("No ACK bit! (11)\n\r");
-
-    //pc.printf("AS5510 init done\r\n");
-}
-
-
-int offset_comp(int i2c_address)
-{
-    int adrss=0;
-    int oresult=0;
-    char off_data[2];
-    int ocf_done=0;
-
-    // First, now Write pointer to register 0x00----------------------------
-    adrss= (i2c_address << 1);                  // AS5510 Slave address lsb= 0 for write
-    oresult= i2c.write(adrss, 0x00, 1, 0);      // write one byte
-    if (oresult != 0) //pc.printf("No ACK bit! (33)\n\r");
-
-    // Second, now Read register 0x00 and 0x01--------------------------------
-    memset(off_data, 0, sizeof(off_data));
-    adrss= (i2c_address << 1) | 0x01;           // AS5510 address lsb= 1 for read
-    oresult= i2c.read(adrss, off_data, 2, 0);   // read two bytes
-
-    // Now analyse register 0x01 ----------------------------------------------
-    ocf_done= off_data[1] & 0x08;               // mask off bits, 1= done
-    if (ocf_done== 0)  return(0);               // return(0)= compensation process is pending
-    else return(1);                             // return(1)= compensation process is completed
-}
-
-
-void read_field(int i2c_address)
-{
-    int adr=0;
-    char rx_data[2];
-    int rresult=0;
-    char lsb, msb;
-
-    // First, now Write pointer to register 0x00----------------------------
-    adr= (i2c_address << 1);                        // AS5510 address lsb= 0 for write
-    rresult= i2c.write(adr, 0x00, 1, 0);            // write one byte to register 0x00 for magnetic field strength
-//    if (rresult != 0) pc.printf("No ACK bit! (22)\n\r");
-
-    // Second, now Read register 0x00 and 0x01--------------------------------
-    memset(rx_data, 0, sizeof(rx_data));
-    adr= (i2c_address << 1) | 0x01;                 // AS5510 address lsb= 1 for read
-    rresult= i2c.read(adr, rx_data, 2, 0);          // read two bytes
-
-
-    // Now analyse register 0x01 ----------------------------------------------
-    lsb= rx_data[0];                                // get LSB
-    msb= rx_data[1]&0x03;                           // need only 2 low bits og MSB
-    value = ((msb & 0x03)<<8) + lsb;
-//    pc.printf("I2C adres= 0x%02X, Magnetic Field => msb= 0x%02X, lsb= 0x%02X, decimal 10-bit value = %u \r\n ", i2c_address, rx_data[0],rx_data[1], value);
-
-}
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