6 I2C_device( i2c_address ),
8 n_ports( (nbits + 7) / 8 ),
12 constexpr uint16_t i = 0x0001;
13 uint8_t* tp = (uint8_t*)(&i);
25 pinMode(RESET_PIN, OUTPUT);
26 pinMode(ADDR_PIN, OUTPUT);
28 digitalWrite( RESET_PIN , 1 );
29 digitalWrite( ADDR_PIN , 1 );
30 digitalWrite( ADDR_PIN , 0 );
33 digitalWrite( RESET_PIN , 0 );
35 digitalWrite( RESET_PIN , 1 );
43 bit_op8( *(arp + OUT) + port, mask, value );
45 write_r8( *(arp + OUT) + port, value );
55 return read_r8( *(arp + IN) + port );
68 bit_op8( *(arp + CONFIG) + port, mask,
config );
70 write_r8( *(arp + CONFIG) + port,
config );
80 if ( auto_increment ) {
81 reg_w( auto_increment | *(arp + w), vp,
n_ports );
84 for (
int i = 0; i <
n_ports; i++ )
85 write_r8( *(arp + w) + i, *vp++ );
93 for (
int i = 0; i <
n_ports; i++ ) {
95 vp[ i ] = temp | vp[ i ] >> 8;
99 int n_bytes = (
n_bits * 2 + 7) / 8;
101 if ( auto_increment ) {
102 reg_w( auto_increment | *(arp + w), (uint8_t*)vp, n_bytes );
105 for (
int i = 0; i < n_bytes; i++ )
106 write_r8( *(arp + w) + i, *vp++ );
112 if ( auto_increment ) {
113 reg_r( auto_increment | *(arp + w), vp,
n_ports );
116 for (
int i = 0; i <
n_ports; i++ )
117 *(vp + i) = read_r8( *(arp + w) + i );
125 int n_bytes = (
n_bits * 2 + 7) / 8;
127 if ( auto_increment ) {
128 reg_r( auto_increment | *(arp + w), (uint8_t*)vp, n_bytes );
131 for (
int i = 0; i < n_bytes; i++ )
132 *(vp + i) = read_r8( *(arp + w) + i );
139 for (
int i = 0; i <
n_ports; i++ ) {
141 vp[ i ] = temp | vp[ i ] >> 8;
150 write_r8( *(arp + w) + port_num, value );
155 write_r16( *(arp + w) + port_num, value );
160 return read_r8( *(arp + w) + port_num );
165 return read_r16( *(arp + w) + port_num );
168void GPIO_base::print_bin( uint8_t v )
171 for (
int i = 7; 0 <= i; i-- )
172 Serial.print(((v >> i) & 0x1) ?
"1" :
"0");
178PCA9554::PCA9554( uint8_t i2c_address ) :
179 GPIO_base( i2c_address, 8, access_ref, 0x00 )
187constexpr uint8_t PCA9554::access_ref[];
192PCA9555::PCA9555( uint8_t i2c_address ) :
193 GPIO_base( i2c_address, 16, access_ref, 0x00 )
201constexpr uint8_t PCA9555::access_ref[];
206PCAL6xxx_base::PCAL6xxx_base( uint8_t i2c_address,
const int nbits,
const uint8_t arp[], uint8_t ai ) :
211PCAL6xxx_base::~PCAL6xxx_base()
218PCAL6408A::PCAL6408A( uint8_t i2c_address ) :
223PCAL6408A::~PCAL6408A()
227constexpr uint8_t PCAL6408A::access_ref[];
232PCAL6416A::PCAL6416A( uint8_t i2c_address ) :
237PCAL6416A::~PCAL6416A()
241constexpr uint8_t PCAL6416A::access_ref[];
246PCAL6524::PCAL6524( uint8_t i2c_address ) :
255constexpr uint8_t PCAL6524::access_ref[];
260PCAL6534::PCAL6534( uint8_t i2c_address ) :
269constexpr uint8_t PCAL6534::access_ref[];
GPIO_base(uint8_t i2c_address, const int nbits, const uint8_t *arp, uint8_t ai)
uint16_t * read_port16(access_word w, uint16_t *vp)
void config(int port, uint8_t config, uint8_t mask=0)
void write_port16(access_word w, uint16_t *vp)
void output(int port, uint8_t value, uint8_t mask=0)
void write_port(access_word w, uint8_t *vp)
void begin(board env=NONE)
uint8_t * read_port(access_word w, uint8_t *vp)