Kim GiJeong / Mbed 2 deprecated HydraulicControlBoard_LIGHT_GJ

eeprom_test

Dependencies:   mbed FastPWM

SPI_EEP_ENC/SPI_EEP_ENC.cpp@0:51c43836c1d7, 2019-08-14 (annotated)

Committer:
GiJeongKim
Date:
Wed Aug 14 08:13:36 2019 +0000
Revision:
0:51c43836c1d7
Child:
16:903b5a4433b4
cocoa;

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