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add keybrd_PCA9655E.ino

tags/v0.6.0
wolfv6 7 years ago
parent
1f6b052a21
commit
ae6b21b712
5 changed files with 103 additions and 100 deletions
Split View Show Diff Stats
  1. 99
    0
      examples/keybrd_PCA9655E/keybrd_PCA9655E.ino
  2. 3
    3
      src/Row_IOE.h
  3. 1
    1
      tutorials/keybrd_4c_split_with_IOE/keybrd_4c_split_with_IOE.ino
  4. 0
    42
      unit_tests/MCP23S17_read/MCP23S17_read.ino
  5. 0
    54
      unit_tests/MCP23S17_write/MCP23S17_write.ino

+ 99
- 0
examples/keybrd_PCA9655E/keybrd_PCA9655E.ino View File

@@ -0,0 +1,99 @@
/* keybrd_PCA9655E.ino

Teensy 2.0 controller PCA9655E I/O expander
| Left | **0** | **1** | | Right | **0** | **1** |
|:-----:|-------|-------| |:-----:|-------|-------|
| **1** | 1 | 2 | | **1** | 3 | 4 |
| **0** | a | b | | **0** | c | d |
*/
// ################## GLOBAL ###################
// ================= INCLUDES ==================
#include <ScanDelay.h>
#include <Code_Sc.h>

//left matrix
#include <Row_uC.h>

//right matrix
#include <Row_IOE.h>
#include <PortIOE.h>
#include <PortWrite_PCA9655E.h>
#include <PortRead_PCA9655E.h>

// ============ SPEED CONFIGURATION ============
ScanDelay scanDelay(9000);

// =============== LEFT uC MATRIX ==============
const bool Scanner_uC::STROBE_ON = HIGH; //active high
const bool Scanner_uC::STROBE_OFF = LOW;

uint8_t readPins_L[] = {0, 1};

// ============== RIGHT IOE MATRIX =============
const bool Scanner_Port::STROBE_ON = HIGH; //active high
const bool Scanner_Port::STROBE_OFF = LOW;

const uint8_t PortIOE::DEVICE_ADDR = 0x18;

// ------------------ PORT 1 -------------------
PortIOE port1_R(1, 0);
PortWrite_PCA9655E portWrite1_R(port1_R);

// ------------------ PORT 0 -------------------
PortIOE port0_R(0, 0);
PortWrite_PCA9655E portWrite0_R(port0_R);
PortRead_PCA9655E portRead0_R(port0_R, 1<<0 | 1<<1 );

// =================== CODES ===================
Code_Sc s_a(KEY_A);
Code_Sc s_b(KEY_B);
Code_Sc s_c(KEY_C);
Code_Sc s_d(KEY_D);

Code_Sc s_1(KEY_1);
Code_Sc s_2(KEY_2);
Code_Sc s_3(KEY_3);
Code_Sc s_4(KEY_4);

// =================== ROWS ====================
// ---------------- LEFT ROWS ------------------
Key* ptrsKeys_L0[] = { &s_1, &s_2 };
uint8_t KEY_COUNT_L0 = sizeof(ptrsKeys_L0)/sizeof(*ptrsKeys_L0);
Row_uC row_L0(21, readPins_L, KEY_COUNT_L0, ptrsKeys_L0);

Key* ptrsKeys_L1[] = { &s_a, &s_b };
uint8_t KEY_COUNT_L1 = sizeof(ptrsKeys_L1)/sizeof(*ptrsKeys_L1);
Row_uC row_L1(20, readPins_L, KEY_COUNT_L1, ptrsKeys_L1);

// ---------------- RIGHT ROWS -----------------
Key* ptrsKeys_R0[] = { &s_3, &s_4 };
uint8_t KEY_COUNT_R0 = sizeof(ptrsKeys_R0)/sizeof(*ptrsKeys_R0);
Row_IOE row_R0(portWrite1_R, 1<<0, portRead0_R, KEY_COUNT_R0, ptrsKeys_R0);

Key* ptrsKeys_R1[] = { &s_c, &s_d };
uint8_t KEY_COUNT_R1 = sizeof(ptrsKeys_R1)/sizeof(*ptrsKeys_R1);
Row_IOE row_R1(portWrite1_R, 1<<1, portRead0_R, KEY_COUNT_R1, ptrsKeys_R1);

// ################### MAIN ####################
void setup()
{
Keyboard.begin();
Wire.begin(); //Wire.begin() must be called before port begin()
portWrite1_R.begin();
portRead0_R.begin();
}

void loop()
{
//left matrix
row_L0.process();
row_L1.process();

//right matrix
row_R0.process();
row_R1.process();

scanDelay.delay();
//debug.print_scans_per_second();
//debug.print_microseconds_per_scan();
}

+ 3
- 3
src/Row_IOE.h View File

@@ -7,15 +7,15 @@
class PortWriteInterface;
class PortReadInterface;

/* Row_IOE is a row connected to an Input/Output Expander.
Configuration and Instantiation instructions are in keybrd/src/Row_IOE.h
/* Row_IOE is a row connected to an I/O Expander.
Configuration and Instantiation instructions are in keybrd/src/Row_uC.h
*/
class Row_IOE : public Row
{
private:
Scanner_Port scanner;
Debouncer_Samples debouncer;
const uint8_t readPinCount; //number of read pins
const uint8_t readPinCount;
public:
Row_IOE(PortWriteInterface& refPortWrite, const uint8_t strobePin,
PortReadInterface& refPortRead, const uint8_t readPinCount, Key *const ptrsKeys[])

+ 1
- 1
tutorials/keybrd_4c_split_with_IOE/keybrd_4c_split_with_IOE.ino View File

@@ -1,4 +1,4 @@
/* keybrd_4c_split_with_IOE_annotated.ino
/* keybrd_4c_split_with_IOE.ino

| Left | **0** | **1** | | Right | **0** | **1** |
|:-----:|-------|-------| |:-----:|-------|-------|

+ 0
- 42
unit_tests/MCP23S17_read/MCP23S17_read.ino View File

@@ -1,42 +0,0 @@
/* this works
The setup is an MCP23S17 I/O expander on a Teensy LC controller.
MCP23S17 port B pins are alternately grounded and energized.
portBState is a bitwise reading of port B.
output is: 10101010

posted on http://arduino.stackexchange.com/questions/tagged/spi
http://arduino.stackexchange.com/questions/28792/reading-an-mcp23s17-i-o-expander-port-with-the-arduino-spi-library
*/
#include <SPI.h>

const uint8_t ADDR = 0x20; //MCP23S17 address, all 3 ADDR pins are grounded
const uint8_t OPCODE_READ = (ADDR << 1 | 0x01); //MCP23S17 opcode read has LSB set

const uint8_t IODIRB = 0x01;
const uint8_t GPIOB = 0x13;

uint8_t portBState = 0; //bit wise

void setup()
{
Serial.begin(9600);
delay(1000);

pinMode(SS, OUTPUT); //configure controller's Slave Select pin to output
digitalWrite(SS, HIGH); //disable Slave Select
SPI.begin();

//IODIRB register is already configured to input by default

SPI.beginTransaction(SPISettings (SPI_CLOCK_DIV8, MSBFIRST, SPI_MODE0)); //gain control of SPI bus
digitalWrite(SS, LOW); //enable Slave Select
SPI.transfer(OPCODE_READ); //read command
SPI.transfer(GPIOB); //register address to read data from
portBState = SPI.transfer(0); //save the data (0 is dummy data to send)
digitalWrite(SS, HIGH); //disable Slave Select
SPI.endTransaction(); //release the SPI bus

Serial.println(portBState, BIN); //should print 10101010
}

void loop() { }

+ 0
- 54
unit_tests/MCP23S17_write/MCP23S17_write.ino View File

@@ -1,54 +0,0 @@
/* this works with volt meter (MCP23S17 on 3.3v does not output enough power for LEDs)
LED lights w/o resistor, not light with 56 ohm resistor
blink LED on MCP23S17 port A pin
from Example 41.1 - Microchip MCP23017 with Arduino
http://tronixstuff.com/tutorials > chapter 41
http://tronixstuff.com/2011/08/26/tutorial-maximising-your-arduinos-io-ports/
John Boxall | CC by-sa-nc
from http://69.5.26.215/forum/?id=10945&page=3 #35
modified to test MCP23S17 (SPI) using syntax from
http://arduino.stackexchange.com/questions/16348/how-do-you-use-spi-on-an-arduino
>

SPISettings from http://arduino.stackexchange.com/questions/14191/mcp23s17-programming-iodirx-register-works-in-loop-but-not-in-setup
*/
#include <SPI.h>

const uint8_t ADDR = 0x20; //MCP23S17 address, all ADDR pins are grounded
const uint8_t OPCODE_WRITE = (ADDR << 1); //MCP23S17 opcode write has LSB clear

const uint8_t IODIRA = 0x00; //LEDs are on port A
const uint8_t GPIOA = 0x12;

uint8_t LED_state = 0; //bit wise

void IOEWrite(const uint8_t registerAddr, const uint8_t data)
{
SPI.beginTransaction(SPISettings (SPI_CLOCK_DIV8, MSBFIRST, SPI_MODE0)); //slower clock
digitalWrite(SS, LOW); //enable Slave Select
SPI.transfer(OPCODE_WRITE); //write command
SPI.transfer(registerAddr); //register address to write data to
SPI.transfer(data); //data
digitalWrite(SS, HIGH); //disable Slave Select
SPI.endTransaction(); //release the SPI bus
}

void setup()
{
Serial.begin(9600);

pinMode(SS, OUTPUT); //configure controller's Slave Select pin to output
digitalWrite(SS, HIGH); //disable Slave Select
SPI.begin();

IOEWrite(IODIRA, 0x00); //configure IODIRA register to output
}

void loop()
{
IOEWrite(GPIOA, LED_state); //set all GPIOA pins

delay(2000);
//Serial.println(LED_state, BIN); //prints alternating 0 and 11111111
LED_state = ~LED_state; //toggle LED on/off
}