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0.5.1 MCP23S17
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@ -6,7 +6,7 @@ jobs:
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lint:
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@v3
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- uses: actions/checkout@v4
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- uses: arduino/arduino-lint-action@v1
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with:
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library-manager: update
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@ -8,7 +8,7 @@ jobs:
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@v3
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- uses: actions/checkout@v4
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- uses: ruby/setup-ruby@v1
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with:
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ruby-version: 2.6
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@ -10,7 +10,7 @@ jobs:
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test:
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@v3
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- uses: actions/checkout@v4
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- name: json-syntax-check
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uses: limitusus/json-syntax-check@v1
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with:
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@ -6,6 +6,12 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/)
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and this project adheres to [Semantic Versioning](http://semver.org/).
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## [0.5.1] - 2024-03-02
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- Fix #38, add parameter to **begin(bool pullup)**
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- update GitHub/actions to version v4 in workflows.
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- Fix #37, using ints as parameter in constructor.
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## [0.5.0] - 2024-01-20
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- Fix #32, improve handling SPI dependency.
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- update examples
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@ -1,7 +1,7 @@
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//
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// FILE: MCP23S17.cpp
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// AUTHOR: Rob Tillaart
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// VERSION: 0.5.0
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// VERSION: 0.5.1
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// PURPOSE: Arduino library for SPI MCP23S17 16 channel port expander
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// DATE: 2021-12-30
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// URL: https://github.com/RobTillaart/MCP23S17
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@ -24,13 +24,13 @@ MCP23S17::MCP23S17(uint8_t select, uint8_t dataIn, uint8_t dataOut, uint8_t cloc
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// HARDWARE SPI
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MCP23S17::MCP23S17(uint8_t select, __SPI_CLASS__ * spi)
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MCP23S17::MCP23S17(int select, __SPI_CLASS__ * spi)
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{
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MCP23S17(select, 0x00, spi);
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}
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MCP23S17::MCP23S17(uint8_t select, uint8_t address, __SPI_CLASS__ * spi)
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MCP23S17::MCP23S17(int select, int address, __SPI_CLASS__ * spi)
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{
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_address = (address << 1);
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_select = select;
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@ -40,7 +40,7 @@ MCP23S17::MCP23S17(uint8_t select, uint8_t address, __SPI_CLASS__ * spi)
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}
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bool MCP23S17::begin()
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bool MCP23S17::begin(bool pullup)
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{
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::pinMode(_select, OUTPUT);
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::digitalWrite(_select, HIGH);
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@ -71,9 +71,12 @@ bool MCP23S17::begin()
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// 0 = Sequential operation enabled, address pointer increments.
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if (! writeReg(MCP23S17_IOCR, MCP23S17_IOCR_SEQOP)) return false;
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// Force INPUT_PULLUP
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if (! writeReg(MCP23S17_PUR_A, 0xFF)) return false; // 0xFF == all UP
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if (! writeReg(MCP23S17_PUR_B, 0xFF)) return false; // 0xFF == all UP
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if (pullup)
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{
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// Force INPUT_PULLUP
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if (! writeReg(MCP23S17_PUR_A, 0xFF)) return false; // 0xFF == all UP
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if (! writeReg(MCP23S17_PUR_B, 0xFF)) return false; // 0xFF == all UP
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}
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return true;
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}
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@ -2,7 +2,7 @@
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//
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// FILE: MCP23S17.h
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// AUTHOR: Rob Tillaart
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// VERSION: 0.5.0
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// VERSION: 0.5.1
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// PURPOSE: Arduino library for SPI MCP23S17 16 channel port expander
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// DATE: 2021-12-30
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// URL: https://github.com/RobTillaart/MCP23S17
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@ -13,7 +13,7 @@
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#include "MCP23S17_registers.h"
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#define MCP23S17_LIB_VERSION (F("0.5.0"))
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#define MCP23S17_LIB_VERSION (F("0.5.1"))
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// ERROR CODES
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#define MCP23S17_OK 0x00
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@ -43,10 +43,10 @@ public:
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// SOFTWARE SPI
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MCP23S17(uint8_t select, uint8_t dataIn, uint8_t dataOut, uint8_t clock, uint8_t address = 0x00);
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// HARDWARE SPI
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MCP23S17(uint8_t select, __SPI_CLASS__ * spi);
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MCP23S17(uint8_t select, uint8_t address = 0x00, __SPI_CLASS__ * spi = &SPI);
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MCP23S17(int select, __SPI_CLASS__ * spi);
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MCP23S17(int select, int address = 0x00, __SPI_CLASS__ * spi = &SPI);
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bool begin();
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bool begin(bool pullup = true);
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bool isConnected();
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uint8_t getAddress(); // default returns 0x00
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@ -84,11 +84,13 @@ Also it makes the library a bit simpler to maintain.
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### Constructor
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- **MCP23S17(uint8_t select, uint8_t dataIn, uint8_t dataOut, uint8_t clock, uint8_t address = 0x00)** constructor SOFTWARE SPI.
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- **MCP23S17(uint8_t select, SPIClassRP2040\* spi)** constructor HARDWARE SPI with explicit SPI interface selected.
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- **MCP23S17(uint8_t select, SPIClass\* spi)** constructor HARDWARE SPI with explicit SPI interface selected.
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- **MCP23S17(uint8_t select, uint8_t address = 0x00, SPIClassRP2040\* spi = &SPI)** constructor HARDWARE SPI with optional address pins and SPI interface.
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- **MCP23S17(uint8_t select, uint8_t address = 0x00, SPIClass\* spi = &SPI)** constructor HARDWARE SPI with optional address pins and SPI interface.
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- **bool begin()** returns true if successful.
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- **MCP23S17(int select, SPIClassRP2040\* spi)** constructor HARDWARE SPI with explicit SPI interface selected.
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- **MCP23S17(int select, SPIClass\* spi)** constructor HARDWARE SPI with explicit SPI interface selected.
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- **MCP23S17(int select, int address = 0x00, SPIClassRP2040\* spi = &SPI)** constructor HARDWARE SPI with optional address pins and SPI interface.
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- **MCP23S17(int select, int address = 0x00, SPIClass\* spi = &SPI)** constructor HARDWARE SPI with optional address pins and SPI interface.
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- **bool begin(bool pullup = true)** initializes library, returns true if successful.
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Default sets the pins to INPUT PULLUP.
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Returns false if not connected or a register could not be set.
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- **bool isConnected()** returns true if connected, false otherwise. (dummy for compatibility reasons)
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- **uint8_t getAddress()** returns the address set in the constructor.
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Default = 0, range = 0..7.
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uint32_t start, stop;
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void setup()
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{
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Serial.begin(115200);
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#include "MCP23S17.h"
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MCP23S17 MCP_A(10, 12, 11, 13, 0); // SW SPI, address 0
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MCP23S17 MCP_B(10 , 12, 11, 13, 1); // SW SPI, address 1
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//MCP23S17 MCP_A(10, 12, 11, 13, 0); // SW SPI, address 0
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//MCP23S17 MCP_B(10, 12, 11, 13, 1); // SW SPI, address 1
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// MCP23S17 MCP_A(10, 0); // HW SPI, address 0
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// MCP23S17 MCP_B(10, 1); // HW SPI, address 1
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MCP23S17 MCP_A(10, &SPI); // HW SPI, address 0 (default)
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MCP23S17 MCP_B(10, 1); // HW SPI, address 1
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void setup()
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@ -52,6 +52,7 @@ void setup()
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void loop()
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{
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int x = random(32);
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Serial.println(x);
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if (x < 16)
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{
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MCP_A.write1(x, HIGH);
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"type": "git",
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"url": "https://github.com/RobTillaart/MCP23S17.git"
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},
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"version": "0.5.0",
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"version": "0.5.1",
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"license": "MIT",
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"frameworks": "*",
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"platforms": "*",
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name=MCP23S17
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version=0.5.0
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version=0.5.1
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author=Rob Tillaart <rob.tillaart@gmail.com>
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maintainer=Rob Tillaart <rob.tillaart@gmail.com>
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sentence=Arduino library for SPI MCP23S17 16 channel port expander 16 IO-lines
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