toshi mura / Mbed 2 deprecated NRP2020_main

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Dependencies:   mbed MCP23017

MCP/MCP.cpp@1:5b0303768126, 2020-01-21 (annotated)

Committer:
M_souta
Date:
Tue Jan 21 11:10:33 2020 +0000
Revision:
1:5b0303768126
Parent:
0:db8d4af513c0
Child:
2:32d2cd7d744b
lll

Who changed what in which revision?

UserRevisionLine numberNew contents of line
M_souta 0:db8d4af513c0 1 #include "MCP.h"
M_souta 0:db8d4af513c0 2 #include "mbed.h"
M_souta 1:5b0303768126 3 #include "MCP23017.h"
M_souta 0:db8d4af513c0 4
M_souta 0:db8d4af513c0 5 MCP::MCP(PinName sda, PinName scl, uint8_t device_address)
M_souta 1:5b0303768126 6 :i2c(sda, scl), mcp(i2c, device_address)
M_souta 0:db8d4af513c0 7 {
M_souta 1:5b0303768126 8 _iodir_data.all = 0xffff;
M_souta 1:5b0303768126 9 _pull_data.all = 0x0000;
M_souta 1:5b0303768126 10 _read_data.all = 0x0000;
M_souta 1:5b0303768126 11 _write_data.all = 0x0000;
M_souta 1:5b0303768126 12 }
M_souta 1:5b0303768126 13
M_souta 1:5b0303768126 14 void MCP::PinMode(uint8_t pin, pin_mode mode)
M_souta 1:5b0303768126 15 {
M_souta 1:5b0303768126 16 if(mode == OUTPUT) {
M_souta 1:5b0303768126 17 _iodir_data.all &= ~(0x0001 << pin);
M_souta 1:5b0303768126 18 } else if(mode == INPUT) {
M_souta 1:5b0303768126 19 _iodir_data.all |= (0x0001 << pin);
M_souta 1:5b0303768126 20 } else if(mode == INPUT_PULLUP) {
M_souta 1:5b0303768126 21 _iodir_data.all |= (0x0001 << pin);
M_souta 1:5b0303768126 22 _pull_data.all |= (0x0001 << pin);
M_souta 1:5b0303768126 23 }
M_souta 0:db8d4af513c0 24 }
M_souta 0:db8d4af513c0 25
M_souta 1:5b0303768126 26 void MCP::Write(uint8_t pin, bool signal)
M_souta 1:5b0303768126 27 {
M_souta 1:5b0303768126 28 if(signal == 1) {
M_souta 1:5b0303768126 29 _write_data.all |= (0x0001 << pin);
M_souta 1:5b0303768126 30 } else {
M_souta 1:5b0303768126 31 _write_data.all &= ~(0x0001 << pin);
M_souta 1:5b0303768126 32 }
M_souta 1:5b0303768126 33 }
M_souta 1:5b0303768126 34
M_souta 1:5b0303768126 35 bool MCP::Read(uint8_t pin)
M_souta 0:db8d4af513c0 36 {
M_souta 1:5b0303768126 37 return (_read_data.all >> pin) & 0x01;
M_souta 1:5b0303768126 38 }
M_souta 1:5b0303768126 39
M_souta 1:5b0303768126 40 void MCP::Update(void)
M_souta 1:5b0303768126 41 {
M_souta 1:5b0303768126 42 mcp.direction(PORT_A, _iodir_data.port.port_A);
M_souta 1:5b0303768126 43 mcp.direction(PORT_B, _iodir_data.port.port_B);
M_souta 1:5b0303768126 44 mcp.configurePullUps(PORT_A, _pull_data.port.port_A);
M_souta 1:5b0303768126 45 mcp.configurePullUps(PORT_B, _pull_data.port.port_B);
M_souta 1:5b0303768126 46 _read_data.port.port_A = mcp.read(PORT_A);
M_souta 1:5b0303768126 47 _read_data.port.port_B = mcp.read(PORT_B);
M_souta 1:5b0303768126 48 // mcp.write(PORT_A, _write_data.port_A);
M_souta 1:5b0303768126 49 // mcp.write(PORT_B, _write_data.port_B);
M_souta 1:5b0303768126 50 }