139 行
4.0 KiB
C++
139 行
4.0 KiB
C++
/* keybrd_4c_split_with_IOE.ino
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This sketch:
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is a simple 1-layer keyboard
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runs on two matrices of a breadboard keyboard
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is annotated with a walk-through narrative
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This layout table shows left and right matrices:
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| Left | **0** | **1** | | Right | **0** | **1** |
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|:-----:|-------|-------|-|:-----:|-------|-------|
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| **1** | 1 | 2 | | **1** | 3 | 4 |
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| **0** | a | b | | **0** | c | d |
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*/
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// ################## GLOBAL ###################
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// ================= INCLUDES ==================
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#include <ScanDelay.h>
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#include <Code_Sc.h>
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#include <Row.h>
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//left matrix
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#include <Scanner_uC.h>
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//right matrix
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#include <PortIOE.h>
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#include <PortWrite_MCP23S17.h>
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#include <PortRead_MCP23S17.h>
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#include <Scanner_IOE.h>
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// ============ SPEED CONFIGURATION ============
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ScanDelay scanDelay(9000);
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// ================ LEFT SCANNER ===============
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/*
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Left matrix rows work the same as the ones in keybrd_2_single-layer.ino
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*/
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uint8_t readPins[] = {14, 15};
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const uint8_t READPIN_COUNT = sizeof(readPins)/sizeof(*readPins);
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Scanner_uC scanner_L(LOW, readPins, READPIN_COUNT);
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// =============== RIGHT SCANNER ===============
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/*
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The right matrix is scanned by an I/O expander.
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The I/O expander device address is configured by hardware pins.
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DEVICE_ADDR is a static variable of class PortIOE.
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*/
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const uint8_t PortIOE::DEVICE_ADDR = 0x20; //MCP23S17 address with all 3 ADDR pins are grounded
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todo explain port num and shift notation <<
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/*
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port_B stobes the row while port_A reads the colums.
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port_A is assigned port identification number 0.
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port_A is assigned to portRead, which reads port_A pins 0 and 1.
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"<<" (bit shift left) and "|" (or) are bitwise operators.
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Pin numbers to be read are to the right of "1<<" and delimited by "|".
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*/
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PortIOE port_A(0);
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PortRead_MCP23S17 portRead(port_A, 1<<0 | 1<<1 );
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/*
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port_B is assigned port identification number 1.
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port_B is assigned to portWrite.
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*/
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PortIOE port_B(1);
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//PortWrite_MCP23S17 portWrite(port_B); //for LEDs todo
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PortWrite_MCP23S17 portWrite(port_B);
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Scanner_IOE scanner_R(LOW, portWrite, portRead);
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// =================== CODES ===================
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Code_Sc s_a(KEY_A);
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Code_Sc s_b(KEY_B);
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Code_Sc s_c(KEY_C);
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Code_Sc s_d(KEY_D);
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Code_Sc s_1(KEY_1);
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Code_Sc s_2(KEY_2);
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Code_Sc s_3(KEY_3);
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Code_Sc s_4(KEY_4);
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// =================== ROWS ====================
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/*
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Left row names contain the letter 'L', while right row names conatain the letter 'R'.
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The first parameteer of a Row constructor specifies the scanner.
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The second parameter of the Row constructor specifies the Row's strobePin.
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strobePin has one of two formats:
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* if refScanner a Scanner_uC, then strobePin is an Arduino pin number connected to this row
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* otherwise strobePin is a bit pattern, 1 indicating an IC pin connected to this row
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*/
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// ---------------- LEFT ROWS ------------------
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/* The left rows have a Scanner_uC and Arduino pin numbers to strobe.
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*/
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Key* ptrsKeys_L0[] = { &s_1, &s_2 };
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const uint8_t KEY_COUNT_L0 = sizeof(ptrsKeys_L0)/sizeof(*ptrsKeys_L0);
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Row row_L0(scanner_L, 0, ptrsKeys_L0, KEY_COUNT_L0);
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Key* ptrsKeys_L1[] = { &s_a, &s_b };
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const uint8_t KEY_COUNT_L1 = sizeof(ptrsKeys_L1)/sizeof(*ptrsKeys_L1);
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Row row_L1(scanner_L, 1, ptrsKeys_L1, KEY_COUNT_L1);
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// ---------------- RIGHT ROWS -----------------
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/*
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The right rows have a Scanner_IOE and pin bits to strobe.
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*/
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Key* ptrsKeys_R0[] = { &s_3, &s_4 };
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const uint8_t KEY_COUNT_R0 = sizeof(ptrsKeys_R0)/sizeof(*ptrsKeys_R0);
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Row row_R0(scanner_R, 1<<0, ptrsKeys_R0, KEY_COUNT_R0);
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Key* ptrsKeys_R1[] = { &s_c, &s_d };
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const uint8_t KEY_COUNT_R1 = sizeof(ptrsKeys_R1)/sizeof(*ptrsKeys_R1);
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Row row_R1(scanner_R, 1<<1, ptrsKeys_R1, KEY_COUNT_R1);
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// ################### MAIN ####################
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void setup()
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{
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delay(7000); //todo
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Keyboard.begin();
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scanner_R.begin();
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}
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void loop()
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{
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//left matrix
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row_L0.process();
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row_L1.process();
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//right matrix
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row_R0.process();
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row_R1.process();
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scanDelay.delay();
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//debug.print_scans_per_second();
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//debug.print_microseconds_per_scan();
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}
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