InetrfaceProducts NXP / PCA9632

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Dependencies:   CompLedDvr

Dependents:   PCA9632_Hello

PCA9632.cpp@0:da1fe3fe7093, 2015-03-04 (annotated)

Committer:
nxp_ip
Date:
Wed Mar 04 04:12:53 2015 +0000
Revision:
0:da1fe3fe7093
Initial version

Who changed what in which revision?

UserRevisionLine numberNew contents of line
nxp_ip 0:da1fe3fe7093 1 #include "mbed.h"
nxp_ip 0:da1fe3fe7093 2 #include "PCA9632.h"
nxp_ip 0:da1fe3fe7093 3
nxp_ip 0:da1fe3fe7093 4 PCA9632::PCA9632( PinName i2c_sda, PinName i2c_scl, char i2c_address )
nxp_ip 0:da1fe3fe7093 5 : i2c_p( new I2C( i2c_sda, i2c_scl ) ), i2c( *i2c_p ), address( i2c_address )
nxp_ip 0:da1fe3fe7093 6 {
nxp_ip 0:da1fe3fe7093 7 initialize();
nxp_ip 0:da1fe3fe7093 8 }
nxp_ip 0:da1fe3fe7093 9
nxp_ip 0:da1fe3fe7093 10 PCA9632::PCA9632( I2C &i2c_, char i2c_address )
nxp_ip 0:da1fe3fe7093 11 : i2c_p( NULL ), i2c( i2c_ ), address( i2c_address )
nxp_ip 0:da1fe3fe7093 12 {
nxp_ip 0:da1fe3fe7093 13 initialize();
nxp_ip 0:da1fe3fe7093 14 }
nxp_ip 0:da1fe3fe7093 15
nxp_ip 0:da1fe3fe7093 16 PCA9632::~PCA9632()
nxp_ip 0:da1fe3fe7093 17 {
nxp_ip 0:da1fe3fe7093 18 if ( NULL != i2c_p )
nxp_ip 0:da1fe3fe7093 19 delete i2c_p;
nxp_ip 0:da1fe3fe7093 20 }
nxp_ip 0:da1fe3fe7093 21
nxp_ip 0:da1fe3fe7093 22 void PCA9632::initialize( void )
nxp_ip 0:da1fe3fe7093 23 {
nxp_ip 0:da1fe3fe7093 24 char init_array0[] = {
nxp_ip 0:da1fe3fe7093 25 AUTO_INCREMENT | REGISTER_START, // Command
nxp_ip 0:da1fe3fe7093 26 0x01, 0x00, // MODE1, MODE2
nxp_ip 0:da1fe3fe7093 27 };
nxp_ip 0:da1fe3fe7093 28 char init_array1[] = {
nxp_ip 0:da1fe3fe7093 29 AUTO_INCREMENT | LEDOUT, // Command
nxp_ip 0:da1fe3fe7093 30 0xAA, // LEDOUT
nxp_ip 0:da1fe3fe7093 31 };
nxp_ip 0:da1fe3fe7093 32
nxp_ip 0:da1fe3fe7093 33 write( init_array0, sizeof( init_array0 ) );
nxp_ip 0:da1fe3fe7093 34 write( init_array1, sizeof( init_array1 ) );
nxp_ip 0:da1fe3fe7093 35 }
nxp_ip 0:da1fe3fe7093 36
nxp_ip 0:da1fe3fe7093 37 void PCA9632::reset( void )
nxp_ip 0:da1fe3fe7093 38 {
nxp_ip 0:da1fe3fe7093 39 char va[] = { 0xA5, 0x5A };
nxp_ip 0:da1fe3fe7093 40 i2c.write( 0x06, va, sizeof( va ) );
nxp_ip 0:da1fe3fe7093 41 }
nxp_ip 0:da1fe3fe7093 42
nxp_ip 0:da1fe3fe7093 43 void PCA9632::pwm( int port, float v )
nxp_ip 0:da1fe3fe7093 44 {
nxp_ip 0:da1fe3fe7093 45 char reg_addr;
nxp_ip 0:da1fe3fe7093 46
nxp_ip 0:da1fe3fe7093 47 if ( port < N_OF_PORTS ) {
nxp_ip 0:da1fe3fe7093 48 reg_addr = PWM_REGISTER_START + port;
nxp_ip 0:da1fe3fe7093 49 write( reg_addr, (char)(v * 255.0) );
nxp_ip 0:da1fe3fe7093 50 } else {
nxp_ip 0:da1fe3fe7093 51 float va[ N_OF_PORTS ];
nxp_ip 0:da1fe3fe7093 52
nxp_ip 0:da1fe3fe7093 53 for ( int i = 0; i < N_OF_PORTS; i++ )
nxp_ip 0:da1fe3fe7093 54 va[ i ] = v;
nxp_ip 0:da1fe3fe7093 55
nxp_ip 0:da1fe3fe7093 56 pwm( va );
nxp_ip 0:da1fe3fe7093 57 }
nxp_ip 0:da1fe3fe7093 58 }
nxp_ip 0:da1fe3fe7093 59
nxp_ip 0:da1fe3fe7093 60 void PCA9632::pwm( float *vp )
nxp_ip 0:da1fe3fe7093 61 {
nxp_ip 0:da1fe3fe7093 62 char data[ N_OF_PORTS + 1 ];
nxp_ip 0:da1fe3fe7093 63
nxp_ip 0:da1fe3fe7093 64 *data = PWM_REGISTER_START;
nxp_ip 0:da1fe3fe7093 65
nxp_ip 0:da1fe3fe7093 66 for ( int i = 1; i <= N_OF_PORTS; i++ )
nxp_ip 0:da1fe3fe7093 67 data[ i ] = (char)(*vp++ * 255.0);
nxp_ip 0:da1fe3fe7093 68
nxp_ip 0:da1fe3fe7093 69 write( data, sizeof( data ) );
nxp_ip 0:da1fe3fe7093 70 }
nxp_ip 0:da1fe3fe7093 71
nxp_ip 0:da1fe3fe7093 72 void PCA9632::write( char *data, int length )
nxp_ip 0:da1fe3fe7093 73 {
nxp_ip 0:da1fe3fe7093 74 *data |= AUTO_INCREMENT;
nxp_ip 0:da1fe3fe7093 75 i2c.write( address, data, length );
nxp_ip 0:da1fe3fe7093 76 }
nxp_ip 0:da1fe3fe7093 77
nxp_ip 0:da1fe3fe7093 78 void PCA9632::write( char reg_addr, char data )
nxp_ip 0:da1fe3fe7093 79 {
nxp_ip 0:da1fe3fe7093 80 char c[2];
nxp_ip 0:da1fe3fe7093 81
nxp_ip 0:da1fe3fe7093 82 c[0] = reg_addr;
nxp_ip 0:da1fe3fe7093 83 c[1] = data;
nxp_ip 0:da1fe3fe7093 84
nxp_ip 0:da1fe3fe7093 85 i2c.write( address, c, 2 );
nxp_ip 0:da1fe3fe7093 86 }
nxp_ip 0:da1fe3fe7093 87
nxp_ip 0:da1fe3fe7093 88 void PCA9632::read( char reg_addr, char *data, int length )
nxp_ip 0:da1fe3fe7093 89 {
nxp_ip 0:da1fe3fe7093 90 reg_addr |= 0x80;
nxp_ip 0:da1fe3fe7093 91 i2c.write( address, (char *)(&reg_addr), 1, true );
nxp_ip 0:da1fe3fe7093 92 i2c.read( address, data, length );
nxp_ip 0:da1fe3fe7093 93 }
nxp_ip 0:da1fe3fe7093 94
nxp_ip 0:da1fe3fe7093 95 char PCA9632::read( char reg_addr )
nxp_ip 0:da1fe3fe7093 96 {
nxp_ip 0:da1fe3fe7093 97 i2c.write( address, (char *)(&reg_addr), 1, true );
nxp_ip 0:da1fe3fe7093 98 i2c.read( address, (char *)(&reg_addr), 1 );
nxp_ip 0:da1fe3fe7093 99
nxp_ip 0:da1fe3fe7093 100 return ( reg_addr );
nxp_ip 0:da1fe3fe7093 101 }