5LEDDriver::LEDDriver( uint8_t n_ch, uint8_t PWM_r, uint8_t oe ) :
6 n_channel( n_ch ), reg_PWM( PWM_r ), oe_pin( oe ), bp( NULL )
10LEDDriver::~LEDDriver()
19 bp[ ch ] = (uint8_t)(value * 255.0);
22 reg_access( reg_PWM + ch, (uint8_t)(value * 255.0) );
29 for (
int i = 0; i < n_channel; i++ )
30 bp[ i ] = (uint8_t)(values[ i ] * 255.0);
33 uint8_t v[ n_channel ];
34 for (
int i = 0; i < n_channel; i++ )
35 v[ i ] = (uint8_t)(values[ i ] * 255.0);
37 reg_access( 0x80 | reg_PWM, v, n_channel );
44 reg_access( 0x80 | reg_PWM, bp, n_channel );
55 bp =
new uint8_t[ n_channel ];
56 for (
int i = 0; i < n_channel; i++ )
65PCA995x::PCA995x( uint8_t n_ch, uint8_t PWM_r, uint8_t IREF_r, uint8_t IREFALL_r, uint8_t oe ) :
66 LEDDriver( n_ch, PWM_r, oe ), reg_IREF( IREF_r ), reg_IREFALL( IREFALL_r )
76void PCA995x::begin(
float current, board env,
bool bflag )
81 pinMode( oe_pin, OUTPUT );
82 digitalWrite( oe_pin , 0 );
90 reg_access( reg_IREFALL, iref );
97PCA995x_I2C::PCA995x_I2C( uint8_t i2c_address, uint8_t n_ch, uint8_t PWM_r, uint8_t IREF_r, uint8_t IREFALL_r, uint8_t oe ) :
98 PCA995x( n_ch, PWM_r, IREF_r, IREFALL_r, oe ),
99 I2C_device( i2c_address )
105PCA995x_I2C::~PCA995x_I2C()
109void PCA995x_I2C::reg_access( uint8_t reg, uint8_t val )
111 write_r8( reg, val );
114void PCA995x_I2C::reg_access( uint8_t reg, uint8_t *vp,
int len )
116 reg_w( 0x80 | reg, vp, len );
123PCA995x_SPI::PCA995x_SPI( uint8_t n_ch, uint8_t PWM_r, uint8_t IREF_r, uint8_t IREFALL_r, uint8_t oe ) :
124 PCA995x( n_ch, PWM_r, IREF_r, IREFALL_r, oe )
130PCA995x_SPI::~PCA995x_SPI()
134void PCA995x_SPI::txrx( uint8_t *data,
int size )
136 digitalWrite( SS, LOW );
137 SPI.transfer( data, size );
138 digitalWrite( SS, HIGH );
141void PCA995x_SPI::reg_access( uint8_t reg, uint8_t val )
143 uint8_t data[] = { reg, val };
145 txrx( data,
sizeof( data ) );
148void PCA995x_SPI::reg_access( uint8_t reg, uint8_t *vp,
int len )
150 uint8_t data[ len * 2 ];
152 for (
int i = 0; i < len; i++ ) {
153 data[ i * 2 + 0 ] = reg + (i * 2);
154 data[ i * 2 + 1 ] = vp[ i ];
157 for (
int i = 0; i < len * 2; i += 2 )
161void PCA995x_SPI::reg_w( uint8_t reg, uint8_t val )
163 reg_access( reg << 1, val );
166void PCA995x_SPI::reg_w( uint8_t reg, uint8_t *vp,
int len )
168 reg_access( reg << 1, vp, len );
171uint8_t PCA995x_SPI::reg_r( uint8_t reg )
173 uint8_t data[ 2 ] = { 0xFF, 0xFF };
175 reg_access( (reg << 1) | 0x01, 0xFF );
176 txrx( data,
sizeof( data ) );
181void PCA995x_SPI::reg_r( uint8_t reg, uint8_t *vp,
int len )
183 for (
int i = 0; i < len; i++ ) {
184 *vp++ = reg_r( ((reg + i) << 1) | 0x01 );
188void PCA995x_SPI::write_r8( uint8_t reg, uint8_t val )
193uint8_t PCA995x_SPI::read_r8( uint8_t reg )
200 write_r8( reg_IREFALL, iref );
203void PCA995x_SPI::pwm( uint8_t ch,
float value )
205 write_r8( reg_PWM + ch, (uint8_t)(value * 255.0) );
208void PCA995x_SPI::pwm(
float* values )
210 uint8_t v[ n_channel ];
211 for (
int i = 0; i < n_channel; i++ )
212 v[ i ] = (uint8_t)(values[ i ] * 255.0);
214 reg_w( reg_PWM, v, n_channel );
void pwm(uint8_t ch, float value)
void buffer_enable(bool flag)
void irefall(uint8_t iref)
void irefall(uint8_t iref)