TVZ Mechatronics Team / DRV8301

Incomplete library for configuration of a DRV8301 pre-driver through a SPI interface.

DRV8301 is 3-Phase Brushless Motor Pre-Driver with Dual Current Sense Amps and Buck Converter (PWM Ctrl w/ SPI). Please find more information on Texas Instruments web pages and datasheet.

DRV8301.cpp@2:bdca7d22b783, 2015-11-23 (annotated)

Committer:
pantunovi
Date:
Mon Nov 23 13:14:48 2015 +0000
Revision:
2:bdca7d22b783
Parent:
0:2825ac4882fd
Child:
3:227ecd07b9cd
Somewhat improved but still incomplete, still problems with class constructor

Who changed what in which revision?

UserRevisionLine numberNew contents of line
pantunovi 0:2825ac4882fd 1 #include "DRV8301.h"
pantunovi 0:2825ac4882fd 2
pantunovi 0:2825ac4882fd 3 DRV8301::DRV8301(PinName mosi, PinName miso, PinName sck) : MOSI(mosi), MISO(miso), SCK(sck){
pantunovi 0:2825ac4882fd 4 startup();
pantunovi 0:2825ac4882fd 5 input = 0;
pantunovi 2:bdca7d22b783 6 }
pantunovi 0:2825ac4882fd 7
pantunovi 0:2825ac4882fd 8 //funkcija za ograničernje struje
pantunovi 0:2825ac4882fd 9
pantunovi 0:2825ac4882fd 10 void DRV8301::setCurrentLimit(uint8_t input){
pantunovi 0:2825ac4882fd 11 uint16_t register1;
pantunovi 2:bdca7d22b783 12 maskCurrentLimit = 0x783F;
pantunovi 0:2825ac4882fd 13 register1 &= maskCurrentLimit;
pantunovi 0:2825ac4882fd 14 register1 |= input << 6;
pantunovi 2:bdca7d22b783 15 }
pantunovi 0:2825ac4882fd 16
pantunovi 0:2825ac4882fd 17 //funkcija za input PWM ulaza
pantunovi 0:2825ac4882fd 18
pantunovi 0:2825ac4882fd 19 void DRV8301::setPWMNumber(uint8_t input){
pantunovi 0:2825ac4882fd 20 uint16_t register1;
pantunovi 2:bdca7d22b783 21 maskPWM = 0x7FF7;
pantunovi 0:2825ac4882fd 22 register1 &= maskPWM;
pantunovi 0:2825ac4882fd 23 register1 |= input << 3;
pantunovi 2:bdca7d22b783 24 }
pantunovi 0:2825ac4882fd 25
pantunovi 0:2825ac4882fd 26 //funkcija za input mod OCP-a
pantunovi 0:2825ac4882fd 27
pantunovi 0:2825ac4882fd 28 void DRV8301::setOCPMode(uint8_t input){
pantunovi 0:2825ac4882fd 29 uint16_t register1;
pantunovi 2:bdca7d22b783 30 maskOCP = 0x7FCF;
pantunovi 0:2825ac4882fd 31 register1 &= maskOCP;
pantunovi 0:2825ac4882fd 32 register1 |= input << 4;
pantunovi 2:bdca7d22b783 33 }
pantunovi 0:2825ac4882fd 34
pantunovi 0:2825ac4882fd 35 //funkcija za input mod OCTW-a
pantunovi 0:2825ac4882fd 36
pantunovi 0:2825ac4882fd 37 void DRV8301::setOCTW(uint8_t input){
pantunovi 0:2825ac4882fd 38 uint16_t register2;
pantunovi 2:bdca7d22b783 39 maskOCTW = 0x7FFC;
pantunovi 0:2825ac4882fd 40 register2 &= maskOCTW;
pantunovi 0:2825ac4882fd 41 register2 |= input;
pantunovi 2:bdca7d22b783 42 }
pantunovi 0:2825ac4882fd 43
pantunovi 0:2825ac4882fd 44 //funkcija za pojačanje
pantunovi 0:2825ac4882fd 45
pantunovi 0:2825ac4882fd 46 void DRV8301::setGain(uint8_t input){
pantunovi 0:2825ac4882fd 47 uint16_t register2;
pantunovi 2:bdca7d22b783 48 maskGain = 0x7FF3;
pantunovi 0:2825ac4882fd 49 register2 &= maskGain;
pantunovi 0:2825ac4882fd 50 register2 |= input << 2;
pantunovi 2:bdca7d22b783 51 }
pantunovi 0:2825ac4882fd 52
pantunovi 0:2825ac4882fd 53 //funkcija za dobivanje stanja u registru 1
pantunovi 0:2825ac4882fd 54
pantunovi 0:2825ac4882fd 55 uint16_t getRegister1(){
pantunovi 0:2825ac4882fd 56 uint16_t register1;
pantunovi 0:2825ac4882fd 57 return register1;
pantunovi 2:bdca7d22b783 58 }
pantunovi 0:2825ac4882fd 59
pantunovi 0:2825ac4882fd 60 // funkcija za dobivanje stanja u registru 2
pantunovi 0:2825ac4882fd 61
pantunovi 0:2825ac4882fd 62 uint16_t getRegister2(){
pantunovi 0:2825ac4882fd 63 uint16_t register2;
pantunovi 0:2825ac4882fd 64 return register2;
pantunovi 2:bdca7d22b783 65 }
pantunovi 0:2825ac4882fd 66
pantunovi 0:2825ac4882fd 67 //funkcija za pokretanje (reboot) DRV-a
pantunovi 0:2825ac4882fd 68
pantunovi 0:2825ac4882fd 69 void DRV8301::startup(){
pantunovi 0:2825ac4882fd 70 EN_GATE = 0;
pantunovi 0:2825ac4882fd 71 wait_us (25);
pantunovi 0:2825ac4882fd 72 EN_GATE = 1;
pantunovi 2:bdca7d22b783 73 }