Revision 0:c1437a5e420b, committed 2017-11-21

Comitter:

daniel_gs_jeong

Date:

Tue Nov 21 05:44:30 2017 +0000

Child:

1:8b8008d86265

Commit message:

MAX77801 High-Efficiency Buck-Boost Regulator DEMO. The MAX77801 is a high-current, high-efficiency buckboost.; Datasheet: https://datasheets.maximintegrated.com/en/ds/MAX77801.pdf; This Demo provides test interface through USB Serial to control chip.

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/USBDevice.lib	Tue Nov 21 05:44:30 2017 +0000
@@ -0,0 +1,1 @@
+https://os.mbed.com/teams/MaximIntegrated/code/USBDevice/#17ac7abb27a7

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Nov 21 05:44:30 2017 +0000
@@ -0,0 +1,161 @@
+/**********************************************************************
+* Copyright (C) 2017 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 "max77801.h"
+#include "USBSerial.h"
+
+// Virtual serial port over USB
+USBSerial microUSB; 
+
+int main()
+{
+    int c;    
+    int32_t rData;
+    double vout_l = 3.3000;
+    double vout_h = 3.7500;
+    
+    DigitalOut rLED(LED1, LED_OFF);
+    DigitalOut gLED(LED2, LED_OFF);
+    DigitalOut bLED(LED3, LED_OFF);
+    
+    I2C i2cBus(P5_7, P6_0);
+    i2cBus.frequency(400000);
+    
+    MAX77801 max77801(&i2cBus);
+    wait_ms(100);    
+    
+    rData = max77801.init();
+    if(rData<0)
+    {
+        microUSB.printf("MAX77801 Fail to Init. Stopped\r\n");        
+        rLED = true;
+    }
+    else
+    {
+        microUSB.printf("MAX77801 Init Done\r\n");
+    }
+  
+    while(1)
+    {        
+        gLED = true;rLED = false;
+        microUSB.printf("----- [ MAX77801 DEMO ] Usage -----  \r\n");  
+        microUSB.printf("i : Set Registers to POR Staus \r\n");  
+        microUSB.printf("+ : Increase VOUT L&H \r\n");  
+        microUSB.printf("- : Dncrease VOUT L&H \r\n");  
+        microUSB.printf("s : Read Status Registser \r\n");  
+        microUSB.printf("e : Enable Buck Boost \r\n");  
+        microUSB.printf("d : Disable Buck Boost \r\n"); 
+        microUSB.printf("\r\nInput >> ");  
+        
+        c = microUSB.getc();
+        
+        gLED = false;rLED = true;
+        switch(c)
+        {
+            // ReInit
+            case 'i': 
+                microUSB.printf("Init to POR Status\r\n");   
+                //Set to POR Status
+                max77801.init();
+                vout_l = 3.3000;
+                rData = max77801.write_register(MAX77801::REG_VOUT_DVS_L, 0x38);
+                if(rData < 0)                    
+                    microUSB.printf("Error: to access data\r\n");  
+                vout_h = 3.7500; //WLP
+                rData = max77801.write_register(MAX77801::REG_VOUT_DVS_H, 0x40);
+                if(rData < 0)                    
+                    microUSB.printf("Error: to access data\r\n"); 
+            break;
+            
+            //Control VOUT
+            case '+':
+                microUSB.printf("Increase VOUT\r\n");   
+                vout_l += 0.0125;
+                rData = max77801.set_vout(vout_l, MAX77801::VAL_LOW); 
+                if(rData < 0)                    
+                    microUSB.printf("Error: to access data\r\n");  
+                vout_h += 0.0125;
+                rData = max77801.set_vout(vout_h, MAX77801::VAL_HIGH);
+                if(rData < 0)                    
+                    microUSB.printf("Error: to access data\r\n");                  
+            break;
+            
+            case '-':
+                microUSB.printf("Decrease VOUT\r\n");    
+                vout_l -= 0.0125;
+                rData = max77801.set_vout(vout_l, MAX77801::VAL_LOW); 
+                if(rData < 0)                    
+                    microUSB.printf("Error: to access data\r\n");  
+                vout_h -= 0.0125;
+                rData = max77801.set_vout(vout_h, MAX77801::VAL_HIGH);
+                if(rData < 0)                    
+                    microUSB.printf("Error: to access data\r\n");                  
+            break;
+            
+            //Read Status Register
+            case 's':
+                microUSB.printf("Read Status\r\n");  
+                rData = max77801.get_status(); 
+                if(rData < 0)                    
+                    microUSB.printf("Error: to access data\r\n");  
+                else                
+                    microUSB.printf("Status 0x%2X\r\n",rData); 
+            break;
+            
+            //Buck Boost Enable/Disable            
+            case 'e':
+                microUSB.printf("Enable Buck Boost\r\n");  
+                rData = max77801.config_enable(MAX77801::BUCK_BOOST_OUTPUT, 
+                                               MAX77801::VAL_ENABLE); 
+                if(rData < 0)                    
+                    microUSB.printf("Error: to access data\r\n");  
+            break;
+            
+            case 'd':
+                microUSB.printf("Disable Buck Boost\r\n");  
+                rData = max77801.config_enable(MAX77801::BUCK_BOOST_OUTPUT, 
+                                               MAX77801::VAL_DISABLE); 
+                if(rData < 0)                    
+                    microUSB.printf("Error: to access data\r\n");  
+            break;
+            
+            
+            default:                
+                microUSB.printf("Unknown Command\r\n");
+            break;            
+        }
+        
+        wait_ms(1000);
+    }
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/max32630fthr.lib	Tue Nov 21 05:44:30 2017 +0000
@@ -0,0 +1,1 @@
+https://developer.mbed.org/teams/MaximIntegrated/code/max32630fthr/#02d6b69121e5

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/max77801.lib	Tue Nov 21 05:44:30 2017 +0000
@@ -0,0 +1,1 @@
+max77801#b9790d4a35fd

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Tue Nov 21 05:44:30 2017 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/e7ca05fa8600
\ No newline at end of file