BERTL_CHEL18 / Mbed 2 deprecated _B14Test8

Bertl 2014 Übung

Dependencies:   mbed

Fork of _B14Test8 by BULME_BERTL14

main.cpp@1:d1a664b263dc, 2015-01-25 (annotated)

Committer:
Enenkel
Date:
Sun Jan 25 17:30:27 2015 +0000
Revision:
1:d1a664b263dc
Parent:
0:951a35674581 
I2C LED TEST

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Enenkel 1:d1a664b263dc 1 /***********************************
Enenkel 1:d1a664b263dc 2 name: BERTL_2014_LAMPENTEST
Enenkel 1:d1a664b263dc 3 modyfied by ENE@bulme.at
Enenkel 1:d1a664b263dc 4 description:
Enenkel 1:d1a664b263dc 5 Alle LED sind INVERS dh 0 = EIN; 1 = AUS;
Enenkel 1:d1a664b263dc 6 ***************************************/
Enenkel 1:d1a664b263dc 7 #include "mbed.h" // Softwarestand: 19.1.2014
Enenkel 0:951a35674581 8 /*** Portkonfiguration ***/
Enenkel 1:d1a664b263dc 9 Serial pc(USBTX, USBRX); // tx, rx
Enenkel 0:951a35674581 10 I2C i2c(p28,p27);
Enenkel 0:951a35674581 11
Enenkel 0:951a35674581 12 /*** Funktionsdefinitionen ***/
Enenkel 1:d1a664b263dc 13 const int addr = 0x40; // I2C-Adresse des PCA9555
Enenkel 1:d1a664b263dc 14 char cmd[3]; // Datenarray für I2C
Enenkel 0:951a35674581 15
Enenkel 0:951a35674581 16 /*** Funktionen ***/
Enenkel 0:951a35674581 17 int main()
Enenkel 0:951a35674581 18 {
Enenkel 1:d1a664b263dc 19 /*** I2C Konfigurationen ***/
Enenkel 1:d1a664b263dc 20 i2c.frequency(40000); // I2C Frequenz 40kHz
Enenkel 1:d1a664b263dc 21 cmd[0] = 0x06; // Comman6 6 Portkonfiguration Port 0
Enenkel 1:d1a664b263dc 22 cmd[1] = 0x00; // 00-> Port 0 = OUTPUT (all Pins 00)
Enenkel 1:d1a664b263dc 23 i2c.write(addr, cmd, 2); // Sende Adresse 0x40; cmd, s -> 0x06 0x00
Enenkel 1:d1a664b263dc 24 // Defines Port0 as Output
Enenkel 1:d1a664b263dc 25 cmd[0] = 0x02; // OUTPUT Port 0
Enenkel 1:d1a664b263dc 26
Enenkel 0:951a35674581 27 /*** Hauptprogramm - Endlosschleife ***/
Enenkel 0:951a35674581 28 while(1)
Enenkel 1:d1a664b263dc 29 {
Enenkel 1:d1a664b263dc 30 // 0x00
Enenkel 1:d1a664b263dc 31 cmd[1] = 0x00; // Alle LED EIN 0000 0000
Enenkel 1:d1a664b263dc 32 i2c.write(addr, cmd, 2);
Enenkel 1:d1a664b263dc 33 wait(2);
Enenkel 1:d1a664b263dc 34 // 0xF F
Enenkel 1:d1a664b263dc 35 cmd[1] = 0x00; // Alle LED AUS 1111 1111
Enenkel 1:d1a664b263dc 36 i2c.write(addr, cmd, 2);
Enenkel 1:d1a664b263dc 37 wait(0.5);
Enenkel 1:d1a664b263dc 38 // F E
Enenkel 1:d1a664b263dc 39 cmd[1] = 0xFE; // D1 vorn links ws 1111 1110
Enenkel 1:d1a664b263dc 40 i2c.write(addr, cmd, 2);
Enenkel 1:d1a664b263dc 41 wait(0.5);
Enenkel 1:d1a664b263dc 42 // F D
Enenkel 1:d1a664b263dc 43 cmd[1] = 0xFD; // D2 vorn links ge 1111 1101
Enenkel 1:d1a664b263dc 44 i2c.write(addr, cmd, 2);
Enenkel 1:d1a664b263dc 45 wait(0.5);
Enenkel 1:d1a664b263dc 46 // F B
Enenkel 1:d1a664b263dc 47 cmd[1] = 0xFB; // D4 vorn rechts ws 1111 1011
Enenkel 1:d1a664b263dc 48 i2c.write(addr, cmd, 2);
Enenkel 0:951a35674581 49 wait(0.5);
Enenkel 0:951a35674581 50
Enenkel 1:d1a664b263dc 51 cmd[1] = 0xF7; // sieh ab hier in den Schaltplan
Enenkel 1:d1a664b263dc 52 i2c.write(addr, cmd, 2);
Enenkel 0:951a35674581 53 wait(0.5);
Enenkel 0:951a35674581 54
Enenkel 1:d1a664b263dc 55 cmd[1] = 0xEF; //
Enenkel 1:d1a664b263dc 56 i2c.write(addr, cmd, 2);
Enenkel 0:951a35674581 57 wait(0.5);
Enenkel 0:951a35674581 58
Enenkel 1:d1a664b263dc 59 cmd[1] = 0xDF; //
Enenkel 1:d1a664b263dc 60 i2c.write(addr, cmd, 2);
Enenkel 0:951a35674581 61 wait(0.5);
Enenkel 0:951a35674581 62
Enenkel 1:d1a664b263dc 63 cmd[1] = 0xBF;
Enenkel 1:d1a664b263dc 64 i2c.write(addr, cmd, 2);
Enenkel 0:951a35674581 65 wait(0.5);
Enenkel 0:951a35674581 66
Enenkel 1:d1a664b263dc 67 cmd[1] = 0x7F;
Enenkel 1:d1a664b263dc 68 i2c.write(addr, cmd, 2);
Enenkel 0:951a35674581 69 wait(0.5);
Enenkel 1:d1a664b263dc 70 // F F
Enenkel 1:d1a664b263dc 71 cmd[1] = 0xFF; // Alle LED AUS 1111 1111
Enenkel 1:d1a664b263dc 72 i2c.write(addr, cmd, 2);
Enenkel 1:d1a664b263dc 73 wait(1);
Enenkel 0:951a35674581 74 }
Enenkel 0:951a35674581 75 }