CQ_I2C_book / Mbed 2 deprecated PCA9632

Fm+ I2C-bus advanced stepper motor controller

Dependencies:   mbed

PCA9632.cpp@0:40ae7d9d2c28, 2015-02-04 (annotated)

Committer:
wataaki
Date:
Wed Feb 04 06:08:13 2015 +0000
Revision:
0:40ae7d9d2c28
Initial version

Who changed what in which revision?

UserRevisionLine numberNew contents of line
wataaki 0:40ae7d9d2c28 1 #include "mbed.h"
wataaki 0:40ae7d9d2c28 2 #include "PCA9632.h"
wataaki 0:40ae7d9d2c28 3
wataaki 0:40ae7d9d2c28 4 I2C i2c(p28,p27); // sda, scl
wataaki 0:40ae7d9d2c28 5 Serial pc(USBTX, USBRX); // tx, rx
wataaki 0:40ae7d9d2c28 6 char cmd[32];
wataaki 0:40ae7d9d2c28 7 int i, j;
wataaki 0:40ae7d9d2c28 8
wataaki 0:40ae7d9d2c28 9 void set_ch(char sel)
wataaki 0:40ae7d9d2c28 10 { // PCA9541のサンプル
wataaki 0:40ae7d9d2c28 11 // MST_0側の自分にスレーブ側の制御権を得る場合
wataaki 0:40ae7d9d2c28 12 cmd[0] = 1; // PCA9541 コマンドコード Cont Reg
wataaki 0:40ae7d9d2c28 13 i2c.write( 0xe2, cmd, 1); // Cont Regを指定
wataaki 0:40ae7d9d2c28 14 i2c.read( 0xe2, cmd, 1); // Cont Regを読込み
wataaki 0:40ae7d9d2c28 15 wait(0.1); // 0.1s待つ
wataaki 0:40ae7d9d2c28 16 switch(cmd[0] & 0xf)
wataaki 0:40ae7d9d2c28 17 {
wataaki 0:40ae7d9d2c28 18 case 0: // bus off, has control
wataaki 0:40ae7d9d2c28 19 case 1: // bus off, no control
wataaki 0:40ae7d9d2c28 20 case 5: // bus on, no control
wataaki 0:40ae7d9d2c28 21 cmd[0] = 1; // PCA9541 コマンドコード Cont Reg
wataaki 0:40ae7d9d2c28 22 cmd[1] = 4; // bus on, has control
wataaki 0:40ae7d9d2c28 23 i2c.write( 0xe2, cmd, 2); // Cont Regにcmd[1]を書込み
wataaki 0:40ae7d9d2c28 24 i2c.read( 0xe2, cmd, 1); // Cont Regを読込み
wataaki 0:40ae7d9d2c28 25 break;
wataaki 0:40ae7d9d2c28 26 case 2: // bus off, no control
wataaki 0:40ae7d9d2c28 27 case 3: // bus off, has control
wataaki 0:40ae7d9d2c28 28 case 6: // bus on, no control
wataaki 0:40ae7d9d2c28 29 cmd[0] = 1; // PCA9541 コマンドコード Cont Reg
wataaki 0:40ae7d9d2c28 30 cmd[1] = 5; // bus on, has control
wataaki 0:40ae7d9d2c28 31 i2c.write( 0xe2, cmd, 2); // Cont Regにcmd[1]を書込み
wataaki 0:40ae7d9d2c28 32 i2c.read( 0xe2, cmd, 1); // Cont Regを読込み
wataaki 0:40ae7d9d2c28 33 break;
wataaki 0:40ae7d9d2c28 34 case 9: // bus on, no control
wataaki 0:40ae7d9d2c28 35 case 0xc: // bus on, no control
wataaki 0:40ae7d9d2c28 36 case 0xd: // bus off, no control
wataaki 0:40ae7d9d2c28 37 cmd[0] = 1; // PCA9541 コマンドコード Cont Reg
wataaki 0:40ae7d9d2c28 38 cmd[1] = 0; // bus on, has control
wataaki 0:40ae7d9d2c28 39 i2c.write( 0xe2, cmd, 2); // Cont Regにcmd[1]を書込み
wataaki 0:40ae7d9d2c28 40 i2c.read( 0xe2, cmd, 1); // Cont Regを読込み
wataaki 0:40ae7d9d2c28 41 break;
wataaki 0:40ae7d9d2c28 42 case 0xa: // bus on, no control
wataaki 0:40ae7d9d2c28 43 case 0xe: // bus off, no control
wataaki 0:40ae7d9d2c28 44 case 0xf: // bus on, has control
wataaki 0:40ae7d9d2c28 45 cmd[0] = 1; // PCA9541 コマンドコード Cont Reg
wataaki 0:40ae7d9d2c28 46 cmd[1] = 1; // bus on, has control
wataaki 0:40ae7d9d2c28 47 i2c.write( 0xe2, cmd, 2); // Cont Regにcmd[1]を書込み
wataaki 0:40ae7d9d2c28 48 i2c.read( 0xe2, cmd, 1); // Cont Regを読込み
wataaki 0:40ae7d9d2c28 49 break;
wataaki 0:40ae7d9d2c28 50 default:
wataaki 0:40ae7d9d2c28 51 break;
wataaki 0:40ae7d9d2c28 52 }
wataaki 0:40ae7d9d2c28 53
wataaki 0:40ae7d9d2c28 54 cmd[0] = sel; // PCA9546 Cont Reg sel channel enabled
wataaki 0:40ae7d9d2c28 55 i2c.write( 0xe8, cmd, 1); // Send command string
wataaki 0:40ae7d9d2c28 56 }
wataaki 0:40ae7d9d2c28 57
wataaki 0:40ae7d9d2c28 58 int main ()
wataaki 0:40ae7d9d2c28 59 {
wataaki 0:40ae7d9d2c28 60 i2c.frequency(100000);
wataaki 0:40ae7d9d2c28 61 pc.printf("PCA9632 Sample Program\r\n");
wataaki 0:40ae7d9d2c28 62
wataaki 0:40ae7d9d2c28 63 set_ch(2); // PCA9632はch1に接続
wataaki 0:40ae7d9d2c28 64
wataaki 0:40ae7d9d2c28 65 // PCA9632
wataaki 0:40ae7d9d2c28 66 cmd[0] = MODE1;
wataaki 0:40ae7d9d2c28 67 cmd[1] = 0x0; // SLEEP = 0
wataaki 0:40ae7d9d2c28 68 i2c.write(PCA9632_ADDR, cmd, 2); // cmd[0]Regにcmd[1]を書込み
wataaki 0:40ae7d9d2c28 69
wataaki 0:40ae7d9d2c28 70 cmd[0] = LEDOUT; // LEDOUT
wataaki 0:40ae7d9d2c28 71 cmd[1] = 0xaa; // LED3,2,1,0 10= PWM
wataaki 0:40ae7d9d2c28 72 i2c.write(PCA9632_ADDR, cmd, 2); // cmd[0]Regにcmd[1-4]を書込み
wataaki 0:40ae7d9d2c28 73
wataaki 0:40ae7d9d2c28 74 while(1)
wataaki 0:40ae7d9d2c28 75 {
wataaki 0:40ae7d9d2c28 76 if (i>3) i = 0;
wataaki 0:40ae7d9d2c28 77 cmd[0] = PWM0 + 0x80; // PWM0, Auto incriment
wataaki 0:40ae7d9d2c28 78 for(j=0; j<4; j++) cmd[j+1] = 0x0; // PWM = 0%
wataaki 0:40ae7d9d2c28 79 cmd[i+1] = 0xff; // PWM = 99.6%
wataaki 0:40ae7d9d2c28 80 i2c.write(PCA9632_ADDR, cmd, 5); // cmd[0]Regにcmd[1-4]を書込み
wataaki 0:40ae7d9d2c28 81 wait(0.5);
wataaki 0:40ae7d9d2c28 82 i++;
wataaki 0:40ae7d9d2c28 83 }
wataaki 0:40ae7d9d2c28 84 }