Kim GiJeong / Mbed 2 deprecated HydraulicControlBoard_LIGHT_GJ

eeprom_test

Dependencies:   mbed FastPWM

SPI_EEP_ENC/SPI_EEP_ENC.cpp@16:903b5a4433b4, 2019-09-02 (annotated)

Committer:
Lightvalve
Date:
Mon Sep 02 13:32:33 2019 +0000
Revision:
16:903b5a4433b4
Parent:
0:51c43836c1d7
Child:
68:135a2d087198
190902

Who changed what in which revision?

UserRevisionLine numberNew contents of line
GiJeongKim 0:51c43836c1d7 1 #include "mbed.h"
GiJeongKim 0:51c43836c1d7 2 #include "setting.h"
GiJeongKim 0:51c43836c1d7 3 #include "SPI_EEP_ENC.h"
GiJeongKim 0:51c43836c1d7 4
GiJeongKim 0:51c43836c1d7 5 // EEPROM
Lightvalve 16:903b5a4433b4 6 //void spi_eeprom_ready(void){
Lightvalve 16:903b5a4433b4 7 // int temp1, temp2;
Lightvalve 16:903b5a4433b4 8 // do{
Lightvalve 16:903b5a4433b4 9 // eeprom_cs=0;
Lightvalve 16:903b5a4433b4 10 // eeprom.write(0x06); //write enable
Lightvalve 16:903b5a4433b4 11 // eeprom_cs=1;
Lightvalve 16:903b5a4433b4 12 //
Lightvalve 16:903b5a4433b4 13 // eeprom_cs=0;
Lightvalve 16:903b5a4433b4 14 // temp1 = eeprom.write(0x05);
Lightvalve 16:903b5a4433b4 15 // temp2 = eeprom.write(0x00);
Lightvalve 16:903b5a4433b4 16 // eeprom_cs=1;
Lightvalve 16:903b5a4433b4 17 // temp2=(temp2&(0x03))!= 0x02;
Lightvalve 16:903b5a4433b4 18 // } while(temp2); // before writing or reading
Lightvalve 16:903b5a4433b4 19 // }
Lightvalve 16:903b5a4433b4 20 //
Lightvalve 16:903b5a4433b4 21 // void spi_eeprom_write(unsigned short add, unsigned int data){
Lightvalve 16:903b5a4433b4 22 // eeprom_cs=0;
Lightvalve 16:903b5a4433b4 23 // eeprom.write(0x02);
Lightvalve 16:903b5a4433b4 24 // eeprom.write(0xff&(add>>8));
Lightvalve 16:903b5a4433b4 25 // eeprom.write(0xff&add);
Lightvalve 16:903b5a4433b4 26 // eeprom.write(0xff&data);
Lightvalve 16:903b5a4433b4 27 // eeprom.write(0xff&(data>>8));
Lightvalve 16:903b5a4433b4 28 // eeprom.write(0xff&(data>>16));
Lightvalve 16:903b5a4433b4 29 // eeprom.write(0xff&(data>>24));
Lightvalve 16:903b5a4433b4 30 // eeprom_cs=1;
Lightvalve 16:903b5a4433b4 31 //}
Lightvalve 16:903b5a4433b4 32 //
Lightvalve 16:903b5a4433b4 33 //unsigned int spi_eeprom_read(unsigned short add){
Lightvalve 16:903b5a4433b4 34 // eeprom_cs=0;
Lightvalve 16:903b5a4433b4 35 // eeprom.write(0x03);
Lightvalve 16:903b5a4433b4 36 // eeprom.write(0xff&(add>>8));
Lightvalve 16:903b5a4433b4 37 // eeprom.write(0xff&add);
Lightvalve 16:903b5a4433b4 38 //
Lightvalve 16:903b5a4433b4 39 // int a1 = eeprom.write(0x00);
Lightvalve 16:903b5a4433b4 40 // int a2 = eeprom.write(0x00);
Lightvalve 16:903b5a4433b4 41 // int a3 = eeprom.write(0x00);
Lightvalve 16:903b5a4433b4 42 // int a4 = eeprom.write(0x00);
Lightvalve 16:903b5a4433b4 43 // eeprom_cs=1;
Lightvalve 16:903b5a4433b4 44 // //unsigned int final = (a4<<24)+(a3<<16) + (a2<<8) + a1;
Lightvalve 16:903b5a4433b4 45 // unsigned int final = (int32_t) (a1 | a2 << 8 | a3 << 16 | a4 << 24);
Lightvalve 16:903b5a4433b4 46 // return final;
Lightvalve 16:903b5a4433b4 47 // }
GiJeongKim 0:51c43836c1d7 48
GiJeongKim 0:51c43836c1d7 49
GiJeongKim 0:51c43836c1d7 50 // ENCODER
GiJeongKim 0:51c43836c1d7 51 void spi_enc_set_clear(void){
GiJeongKim 0:51c43836c1d7 52 unsigned int temp;
GiJeongKim 0:51c43836c1d7 53 enc_cs = 0;
GiJeongKim 0:51c43836c1d7 54 temp = enc.write(0b00100000);
GiJeongKim 0:51c43836c1d7 55 enc_cs = 1;
GiJeongKim 0:51c43836c1d7 56 }
GiJeongKim 0:51c43836c1d7 57
GiJeongKim 0:51c43836c1d7 58 void spi_enc_set_init(void){
GiJeongKim 0:51c43836c1d7 59 unsigned int temp, i, temp1, temp2;
GiJeongKim 0:51c43836c1d7 60
GiJeongKim 0:51c43836c1d7 61 // write MDR0 -> 0b11 -> x4 quadrature count mode
GiJeongKim 0:51c43836c1d7 62 enc_cs = 0;
GiJeongKim 0:51c43836c1d7 63 temp = enc.write(0b10001000); // WR + MDR0
GiJeongKim 0:51c43836c1d7 64 temp = enc.write(0b00000011); // quadratue mode
GiJeongKim 0:51c43836c1d7 65 enc_cs = 1;
GiJeongKim 0:51c43836c1d7 66
GiJeongKim 0:51c43836c1d7 67 // write MDR1 -> 0b10 -> 2-byte counter mode
GiJeongKim 0:51c43836c1d7 68 for(i=0;i<100;i++);
GiJeongKim 0:51c43836c1d7 69 enc_cs = 0;
GiJeongKim 0:51c43836c1d7 70 temp = enc.write(0b10010000); // WR + MDR1
GiJeongKim 0:51c43836c1d7 71 //temp = enc.write(0b00000010); // 2 byte mode
GiJeongKim 0:51c43836c1d7 72 temp = enc.write(0b00000000); // 4 byte mode
GiJeongKim 0:51c43836c1d7 73 enc_cs = 1;
GiJeongKim 0:51c43836c1d7 74
GiJeongKim 0:51c43836c1d7 75 // clear
GiJeongKim 0:51c43836c1d7 76 spi_enc_set_clear();
GiJeongKim 0:51c43836c1d7 77 }
GiJeongKim 0:51c43836c1d7 78
GiJeongKim 0:51c43836c1d7 79
GiJeongKim 0:51c43836c1d7 80 int spi_enc_read(void){
GiJeongKim 0:51c43836c1d7 81 //for(t_i=0;t_i<100;t_i++);
GiJeongKim 0:51c43836c1d7 82 unsigned int t_dummy, t_b1, t_b2, t_b3, t_b4, t_i;
GiJeongKim 0:51c43836c1d7 83 enc_cs = 0;
GiJeongKim 0:51c43836c1d7 84 t_dummy = enc.write(0b01100000); // Read Commend
GiJeongKim 0:51c43836c1d7 85 t_b1 = enc.write(0x00); // Dummy data for clock
GiJeongKim 0:51c43836c1d7 86 t_b2 = enc.write(0x00); // Dummy data for clock
GiJeongKim 0:51c43836c1d7 87 t_b3 = enc.write(0x00); // Dummy data for clock
GiJeongKim 0:51c43836c1d7 88 t_b4 = enc.write(0x00); // Dummy data for clock
GiJeongKim 0:51c43836c1d7 89 enc_cs = 1;
GiJeongKim 0:51c43836c1d7 90
GiJeongKim 0:51c43836c1d7 91 return((t_b1<<24) + (t_b2<<16) + (t_b3<<8) + t_b4);
GiJeongKim 0:51c43836c1d7 92 }