Diff: main.cpp

Revision:

0:0db9a7ed2e63

Child:

1:a3fa54415b4e

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Dec 07 19:51:44 2016 +0000
@@ -0,0 +1,194 @@
+/**********************************************************************
+* Copyright (C) 2016 Maxim Integrated Products, Inc., All Rights Reserved.
+*
+* Permission is hereby granted, free of charge, to any person obtaining a
+* copy of this software and associated documentation files (the "Software"),
+* to deal in the Software without restriction, including without limitation
+* the rights to use, copy, modify, merge, publish, distribute, sublicense,
+* and/or sell copies of the Software, and to permit persons to whom the
+* Software is furnished to do so, subject to the following conditions:
+*
+* The above copyright notice and this permission notice shall be included
+* in all copies or substantial portions of the Software.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+* IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
+* OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+* OTHER DEALINGS IN THE SOFTWARE.
+*
+* Except as contained in this notice, the name of Maxim Integrated
+* Products, Inc. shall not be used except as stated in the Maxim Integrated
+* Products, Inc. Branding Policy.
+*
+* The mere transfer of this software does not imply any licenses
+* of trade secrets, proprietary technology, copyrights, patents,
+* trademarks, maskwork rights, or any other form of intellectual
+* property whatsoever. Maxim Integrated Products, Inc. retains all
+* ownership rights.
+**********************************************************************/
+
+
+#include "mbed.h"
+#include "SDFileSystem.h"
+#include "max32630fthr.h"
+#include "mbed-dev/targets/TARGET_Maxim/TARGET_MAX32630/mxc/adc.h"
+#include "mbed-dev/targets/TARGET_Maxim/TARGET_MAX32630/mxc/mxc_errors.h"
+
+#include "bmi160.h"
+
+void dumpPmicRegisters(MAX32630FTHR &pegasus);
+int readBatteryRaw(uint16_t *data);
+float getBatteryVolts(uint16_t data);
+void dumpImuRegisters(BMI160 &imu);
+void printRegister(BMI160 &imu, BMI160::Registers reg);
+void printBlock(BMI160 &imu, BMI160::Registers startReg, BMI160::Registers stopReg, uint8_t *buff);
+
+
+int main()
+{
+    MAX32630FTHR pegasus(MAX32630FTHR::VIO_3V3);
+    pegasus.init();
+    //connect battery to monitor pin AIN_0
+    pegasus.max14690.monSet(MAX14690::MON_BAT, MAX14690::MON_DIV1);
+    dumpPmicRegisters(pegasus);
+    
+    DigitalOut rLED(LED1, LED_OFF);
+    DigitalOut gLED(LED2, LED_OFF);
+    DigitalOut bLED(LED3, LED_ON);
+    
+    BMI160 imu(pegasus.i2c, BMI160::I2C_ADRS_SDO_LO);
+    dumpImuRegisters(imu);
+    
+    uint16_t battRawData;
+    uint32_t loopCnt = 0;
+    
+    while(1)
+    {
+        if(loopCnt == 0)
+        {
+            if(readBatteryRaw(&battRawData) == E_NO_ERROR)
+            {
+                printf("Battery voltage = %05.3f\n\n", getBatteryVolts(battRawData));
+            }
+            else
+            {
+                printf("Battery voltage = Overflow\n\n");
+            }
+        }
+        
+        wait(1.0);
+        bLED = !bLED;
+        loopCnt++;
+        if(loopCnt >= 15)
+        {
+            loopCnt = 0;
+        }
+    }
+}
+
+
+//*****************************************************************************
+void dumpPmicRegisters(MAX32630FTHR &pegasus)
+{
+    char reg_val[32];
+    size_t len = sizeof(reg_val);
+    
+    if(pegasus.max14690.readAllReg(reg_val, len) == 0)
+    {
+        for(uint8_t idx = 0; idx < len; idx++)
+        {
+            printf("PMIC Register 0x%02x = 0x%02x\n", idx, reg_val[idx]);
+        }
+        printf("\n");
+    }
+    else
+    {
+        printf("Failed to read PMIC registers\n\n");
+    }
+   
+}
+
+
+//*****************************************************************************
+void dumpImuRegisters(BMI160 &imu)
+{
+    //dumps registers defined by datasheet
+    uint8_t buff[0x30];
+    
+    printRegister(imu, BMI160::CHIP_ID);
+    printBlock(imu, BMI160::ERR_REG,BMI160::FIFO_DATA, buff);
+    printBlock(imu, BMI160::ACC_CONF, BMI160::FIFO_CONFIG_1, buff);
+    printBlock(imu, BMI160::MAG_IF_0, BMI160::SELF_TEST, buff);
+    printBlock(imu, BMI160::NV_CONF, BMI160::STEP_CONF_1, buff);
+    printRegister(imu, BMI160::CMD);
+    printf("\n");
+}
+
+
+//*****************************************************************************
+void printRegister(BMI160 &imu, BMI160::Registers reg)
+{
+    uint8_t data;
+    if(imu.readRegister(reg, &data) == BMI160::NO_ERROR)
+    {
+        printf("IMU Register 0x%02x = 0x%02x\n", reg, data);
+    }
+    else
+    {
+        printf("Failed to read register\n");
+    }
+}
+
+
+//*****************************************************************************
+void printBlock(BMI160 &imu, BMI160::Registers startReg, BMI160::Registers stopReg, uint8_t *buff)
+{
+    uint8_t numBytes = ((stopReg - startReg) + 1);
+    uint8_t offset = static_cast<uint8_t>(startReg);
+    
+    if(imu.readBlock(startReg, stopReg, buff) == BMI160::NO_ERROR)
+    {
+        for(uint8_t idx = offset; idx < (numBytes + offset); idx++)
+        {
+            printf("IMU Register 0x%02x = 0x%02x\n", idx, buff[idx - offset]);
+        }
+    }
+    else
+    {
+        printf("Failed to read block\n");
+    }
+}
+
+
+//*****************************************************************************
+int readBatteryRaw(uint16_t *data)
+{
+    static bool init = false;
+    int rtnVal = E_NULL_PTR;
+    
+    if(!init)
+    {
+        if(ADC_Init() == E_NO_ERROR)
+        {
+            init = true;
+        }
+    }
+    
+    if(init)
+    {
+        ADC_StartConvert(ADC_CH_0_DIV_5, 1, 0);
+        rtnVal = ADC_GetData(data);
+    }
+    
+    return rtnVal;
+}
+
+
+//*****************************************************************************
+float getBatteryVolts(uint16_t data)
+{
+    return((((0x03FF & data) * 6.0F)/1023.0F));
+}