From ce01f88c43adef9344727998f53bb1cf74913f65 Mon Sep 17 00:00:00 2001 From: Jack Humbert Date: Tue, 5 Jul 2016 23:40:54 -0400 Subject: images, docks, clean-up [skip ci] --- .../imgs/split-keyboard-i2c-schematic.png | Bin 0 -> 26565 bytes .../imgs/split-keyboard-serial-schematic.png | Bin 0 -> 19487 bytes keyboards/lets_split/matrix.c | 1 + keyboards/lets_split/readme.md | 102 ++++++++++ keyboards/lets_split/serial.c | 225 ++++++++++++++++++++ keyboards/lets_split/serial.h | 26 +++ keyboards/lets_split/split_util.c | 9 + keyboards/lets_split/split_util.h | 6 +- keyboards/lets_split/uno-slave/Makefile | 226 --------------------- .../lets_split/uno-slave/keyboard-i2c-slave.c | 42 ---- keyboards/lets_split/uno-slave/readme.md | 1 - keyboards/lets_split/uno-slave/uno-matrix.c | 160 --------------- keyboards/lets_split/uno-slave/uno-matrix.h | 19 -- keyboards/lets_split/uno_slave/Makefile | 226 +++++++++++++++++++++ .../lets_split/uno_slave/keyboard-i2c-slave.c | 42 ++++ keyboards/lets_split/uno_slave/readme.md | 1 + keyboards/lets_split/uno_slave/uno-matrix.c | 160 +++++++++++++++ keyboards/lets_split/uno_slave/uno-matrix.h | 19 ++ 18 files changed, 815 insertions(+), 450 deletions(-) create mode 100644 keyboards/lets_split/imgs/split-keyboard-i2c-schematic.png create mode 100644 keyboards/lets_split/imgs/split-keyboard-serial-schematic.png create mode 100644 keyboards/lets_split/serial.c create mode 100644 keyboards/lets_split/serial.h delete mode 100644 keyboards/lets_split/uno-slave/Makefile delete mode 100644 keyboards/lets_split/uno-slave/keyboard-i2c-slave.c delete mode 100644 keyboards/lets_split/uno-slave/readme.md delete mode 100644 keyboards/lets_split/uno-slave/uno-matrix.c delete mode 100644 keyboards/lets_split/uno-slave/uno-matrix.h create mode 100644 keyboards/lets_split/uno_slave/Makefile create mode 100644 keyboards/lets_split/uno_slave/keyboard-i2c-slave.c create mode 100644 keyboards/lets_split/uno_slave/readme.md create mode 100644 keyboards/lets_split/uno_slave/uno-matrix.c create mode 100644 keyboards/lets_split/uno_slave/uno-matrix.h (limited to 'keyboards/lets_split') diff --git a/keyboards/lets_split/imgs/split-keyboard-i2c-schematic.png b/keyboards/lets_split/imgs/split-keyboard-i2c-schematic.png new file mode 100644 index 0000000000..8882947187 Binary files /dev/null and b/keyboards/lets_split/imgs/split-keyboard-i2c-schematic.png differ diff --git a/keyboards/lets_split/imgs/split-keyboard-serial-schematic.png b/keyboards/lets_split/imgs/split-keyboard-serial-schematic.png new file mode 100644 index 0000000000..7621d38ed9 Binary files /dev/null and b/keyboards/lets_split/imgs/split-keyboard-serial-schematic.png differ diff --git a/keyboards/lets_split/matrix.c b/keyboards/lets_split/matrix.c index 16c2ba0bad..1d768c59b3 100644 --- a/keyboards/lets_split/matrix.c +++ b/keyboards/lets_split/matrix.c @@ -29,6 +29,7 @@ along with this program. If not, see . #include "util.h" #include "matrix.h" #include "i2c.h" +#include "serial.h" #include "split_util.h" #include "pro_micro.h" #include "config.h" diff --git a/keyboards/lets_split/readme.md b/keyboards/lets_split/readme.md index e69de29bb2..73fdb0f789 100644 --- a/keyboards/lets_split/readme.md +++ b/keyboards/lets_split/readme.md @@ -0,0 +1,102 @@ +Let's Split +====== + +This readme and most of the code are from https://github.com/ahtn/tmk_keyboard/ + +Split keyboard firmware for Arduino Pro Micro or other ATmega32u4 +based boards. + +Features +-------- + +Some features supported by the firmware: + +* Either half can connect to the computer via USB, or both halves can be used + independently. +* You only need 3 wires to connect the two halves. Two for VCC and GND and one + for serial communication. +* Optional support for I2C connection between the two halves if for some + reason you require a faster connection between the two halves. Note this + requires an extra wire between halves and pull-up resistors on the data lines. + +Required Hardware +----------------- + +Apart from diodes and key switches for the keyboard matrix in each half, you +will need: + +* 2 Arduino Pro Micro's. You can find theses on aliexpress for ≈3.50USD each. +* 2 TRS sockets +* 1 TRS cable. + +Alternatively, you can use any sort of cable and socket that has at least 3 +wires. If you want to use I2C to communicate between halves, you will need a +cable with at least 4 wires and 2x 4.7kΩ pull-up resistors + +Optional Hardware +----------------- + +A speaker can be hooked-up to either side to the `5` (`C6`) pin and `GND`, and turned on via `AUDIO_ENABLE`. + +Wiring +------ + +The 3 wires of the TRS cable need to connect GND, VCC, and digital pin 3 (i.e. +PD0 on the ATmega32u4) between the two Pro Micros. + +Then wire your key matrix to any of the remaining 17 IO pins of the pro micro +and modify the `matrix.c` accordingly. + +The wiring for serial: + +![serial wiring](imgs/split-keyboard-serial-schematic.png) + +The wiring for i2c: + +![i2c wiring](imgs/split-keyboard-i2c-schematic.png) + +The pull-up resistors may be placed on either half. It is also possible +to use 4 resistors and have the pull-ups in both halves, but this is +unnecessary in simple use cases. + +Notes on Software Configuration +------------------------------- + +Configuring the firmware is similar to any other TMK project. One thing +to note is that `MATIX_ROWS` in `config.h` is the total number of rows between +the two halves, i.e. if your split keyboard has 4 rows in each half, then +`MATRIX_ROWS=8`. + +Also the current implementation assumes a maximum of 8 columns, but it would +not be very difficult to adapt it to support more if required. + + +Flashing +-------- + +If you define `EE_HANDS` in your `config.h`, you will need to set the +EEPROM for the left and right halves. The EEPROM is used to store whether the +half is left handed or right handed. This makes it so that the same firmware +file will run on both hands instead of having to flash left and right handed +versions of the firmware to each half. To flash the EEPROM file for the left +half run: +``` +make eeprom-left +``` +and similarly for right half +``` +make eeprom-right +``` + +After you have flashed the EEPROM for the first time, you then need to program +the flash memory: +``` +make program +``` +Note that you need to program both halves, but you have the option of using +different keymaps for each half. You could program the left half with a QWERTY +layout and the right half with a Colemak layout. Then if you connect the left +half to a computer by USB the keyboard will use QWERTY and Colemak when the +right half is connected. + + diff --git a/keyboards/lets_split/serial.c b/keyboards/lets_split/serial.c new file mode 100644 index 0000000000..f439c2f20b --- /dev/null +++ b/keyboards/lets_split/serial.c @@ -0,0 +1,225 @@ +/* + * WARNING: be careful changing this code, it is very timing dependent + */ + +#ifndef F_CPU +#define F_CPU 16000000 +#endif + +#include +#include +#include +#include + +#include "serial.h" + +// Serial pulse period in microseconds. Its probably a bad idea to lower this +// value. +#define SERIAL_DELAY 24 + +uint8_t volatile serial_slave_buffer[SERIAL_SLAVE_BUFFER_LENGTH] = {0}; +uint8_t volatile serial_master_buffer[SERIAL_MASTER_BUFFER_LENGTH] = {0}; + +#define SLAVE_DATA_CORRUPT (1<<0) +volatile uint8_t status = 0; + +inline static +void serial_delay(void) { + _delay_us(SERIAL_DELAY); +} + +inline static +void serial_output(void) { + SERIAL_PIN_DDR |= SERIAL_PIN_MASK; +} + +// make the serial pin an input with pull-up resistor +inline static +void serial_input(void) { + SERIAL_PIN_DDR &= ~SERIAL_PIN_MASK; + SERIAL_PIN_PORT |= SERIAL_PIN_MASK; +} + +inline static +uint8_t serial_read_pin(void) { + return !!(SERIAL_PIN_INPUT & SERIAL_PIN_MASK); +} + +inline static +void serial_low(void) { + SERIAL_PIN_PORT &= ~SERIAL_PIN_MASK; +} + +inline static +void serial_high(void) { + SERIAL_PIN_PORT |= SERIAL_PIN_MASK; +} + +void serial_master_init(void) { + serial_output(); + serial_high(); +} + +void serial_slave_init(void) { + serial_input(); + + // Enable INT0 + EIMSK |= _BV(INT0); + // Trigger on falling edge of INT0 + EICRA &= ~(_BV(ISC00) | _BV(ISC01)); +} + +// Used by the master to synchronize timing with the slave. +static +void sync_recv(void) { + serial_input(); + // This shouldn't hang if the slave disconnects because the + // serial line will float to high if the slave does disconnect. + while (!serial_read_pin()); + serial_delay(); +} + +// Used by the slave to send a synchronization signal to the master. +static +void sync_send(void) { + serial_output(); + + serial_low(); + serial_delay(); + + serial_high(); +} + +// Reads a byte from the serial line +static +uint8_t serial_read_byte(void) { + uint8_t byte = 0; + serial_input(); + for ( uint8_t i = 0; i < 8; ++i) { + byte = (byte << 1) | serial_read_pin(); + serial_delay(); + _delay_us(1); + } + + return byte; +} + +// Sends a byte with MSB ordering +static +void serial_write_byte(uint8_t data) { + uint8_t b = 8; + serial_output(); + while( b-- ) { + if(data & (1 << b)) { + serial_high(); + } else { + serial_low(); + } + serial_delay(); + } +} + +// interrupt handle to be used by the slave device +ISR(SERIAL_PIN_INTERRUPT) { + sync_send(); + + uint8_t checksum = 0; + for (int i = 0; i < SERIAL_SLAVE_BUFFER_LENGTH; ++i) { + serial_write_byte(serial_slave_buffer[i]); + sync_send(); + checksum += serial_slave_buffer[i]; + } + serial_write_byte(checksum); + sync_send(); + + // wait for the sync to finish sending + serial_delay(); + + // read the middle of pulses + _delay_us(SERIAL_DELAY/2); + + uint8_t checksum_computed = 0; + for (int i = 0; i < SERIAL_MASTER_BUFFER_LENGTH; ++i) { + serial_master_buffer[i] = serial_read_byte(); + sync_send(); + checksum_computed += serial_master_buffer[i]; + } + uint8_t checksum_received = serial_read_byte(); + sync_send(); + + serial_input(); // end transaction + + if ( checksum_computed != checksum_received ) { + status |= SLAVE_DATA_CORRUPT; + } else { + status &= ~SLAVE_DATA_CORRUPT; + } +} + +inline +bool serial_slave_DATA_CORRUPT(void) { + return status & SLAVE_DATA_CORRUPT; +} + +// Copies the serial_slave_buffer to the master and sends the +// serial_master_buffer to the slave. +// +// Returns: +// 0 => no error +// 1 => slave did not respond +int serial_update_buffers(void) { + // this code is very time dependent, so we need to disable interrupts + cli(); + + // signal to the slave that we want to start a transaction + serial_output(); + serial_low(); + _delay_us(1); + + // wait for the slaves response + serial_input(); + serial_high(); + _delay_us(SERIAL_DELAY); + + // check if the slave is present + if (serial_read_pin()) { + // slave failed to pull the line low, assume not present + sei(); + return 1; + } + + // if the slave is present syncronize with it + sync_recv(); + + uint8_t checksum_computed = 0; + // receive data from the slave + for (int i = 0; i < SERIAL_SLAVE_BUFFER_LENGTH; ++i) { + serial_slave_buffer[i] = serial_read_byte(); + sync_recv(); + checksum_computed += serial_slave_buffer[i]; + } + uint8_t checksum_received = serial_read_byte(); + sync_recv(); + + if (checksum_computed != checksum_received) { + sei(); + return 1; + } + + uint8_t checksum = 0; + // send data to the slave + for (int i = 0; i < SERIAL_MASTER_BUFFER_LENGTH; ++i) { + serial_write_byte(serial_master_buffer[i]); + sync_recv(); + checksum += serial_master_buffer[i]; + } + serial_write_byte(checksum); + sync_recv(); + + // always, release the line when not in use + serial_output(); + serial_high(); + + sei(); + return 0; +} diff --git a/keyboards/lets_split/serial.h b/keyboards/lets_split/serial.h new file mode 100644 index 0000000000..15fe4db7b4 --- /dev/null +++ b/keyboards/lets_split/serial.h @@ -0,0 +1,26 @@ +#ifndef MY_SERIAL_H +#define MY_SERIAL_H + +#include "config.h" +#include + +/* TODO: some defines for interrupt setup */ +#define SERIAL_PIN_DDR DDRD +#define SERIAL_PIN_PORT PORTD +#define SERIAL_PIN_INPUT PIND +#define SERIAL_PIN_MASK _BV(PD0) +#define SERIAL_PIN_INTERRUPT INT0_vect + +#define SERIAL_SLAVE_BUFFER_LENGTH MATRIX_ROWS/2 +#define SERIAL_MASTER_BUFFER_LENGTH 1 + +// Buffers for master - slave communication +extern volatile uint8_t serial_slave_buffer[SERIAL_SLAVE_BUFFER_LENGTH]; +extern volatile uint8_t serial_master_buffer[SERIAL_MASTER_BUFFER_LENGTH]; + +void serial_master_init(void); +void serial_slave_init(void); +int serial_update_buffers(void); +bool serial_slave_data_corrupt(void); + +#endif diff --git a/keyboards/lets_split/split_util.c b/keyboards/lets_split/split_util.c index c394596e0c..65003a71a4 100644 --- a/keyboards/lets_split/split_util.c +++ b/keyboards/lets_split/split_util.c @@ -7,13 +7,22 @@ #include "split_util.h" #include "matrix.h" #include "i2c.h" +#include "serial.h" #include "keyboard.h" #include "config.h" volatile bool isLeftHand = true; static void setup_handedness(void) { + #ifdef EE_HANDS isLeftHand = eeprom_read_byte(EECONFIG_HANDEDNESS); + #else + #ifdef I2C_MASTER_RIGHT + isLeftHand = !has_usb(); + #else + isLeftHand = has_usb(); + #endif + #endif } static void keyboard_master_setup(void) { diff --git a/keyboards/lets_split/split_util.h b/keyboards/lets_split/split_util.h index cf6890d37f..6b896679ca 100644 --- a/keyboards/lets_split/split_util.h +++ b/keyboards/lets_split/split_util.h @@ -3,8 +3,10 @@ #include -#define EECONFIG_BOOTMAGIC_END (uint8_t *)10 -#define EECONFIG_HANDEDNESS EECONFIG_BOOTMAGIC_END +#ifdef EE_HANDS + #define EECONFIG_BOOTMAGIC_END (uint8_t *)10 + #define EECONFIG_HANDEDNESS EECONFIG_BOOTMAGIC_END +#endif #define SLAVE_I2C_ADDRESS 0x32 diff --git a/keyboards/lets_split/uno-slave/Makefile b/keyboards/lets_split/uno-slave/Makefile deleted file mode 100644 index 84e67de113..0000000000 --- a/keyboards/lets_split/uno-slave/Makefile +++ /dev/null @@ -1,226 +0,0 @@ -# Hey Emacs, this is a -*- makefile -*- - -# AVR-GCC Makefile template, derived from the WinAVR template (which -# is public domain), believed to be neutral to any flavor of "make" -# (GNU make, BSD make, SysV make) - - -MCU = atmega328p -FORMAT = ihex -TARGET = keyboard-i2c-slave -SRC = \ - $(TARGET).c \ - uno-matrix.c \ - ../serial.c \ - ../i2c-slave.c - -ASRC = -OPT = s - -# Programming support using avrdude. Settings and variables. - -AVRDUDE_PROGRAMMER = arduino -AVRDUDE_PORT = /dev/ttyACM0 - -# Name of this Makefile (used for "make depend"). -MAKEFILE = Makefile - -# Debugging format. -# Native formats for AVR-GCC's -g are stabs [default], or dwarf-2. -# AVR (extended) COFF requires stabs, plus an avr-objcopy run. -DEBUG = stabs - -# Compiler flag to set the C Standard level. -# c89 - "ANSI" C -# gnu89 - c89 plus GCC extensions -# c99 - ISO C99 standard (not yet fully implemented) -# gnu99 - c99 plus GCC extensions -CSTANDARD = -std=gnu99 - -# Place -D or -U options here -CDEFS = - -# Place -I options here -CINCS = - - -CDEBUG = -g$(DEBUG) -CWARN = -Wall -Wstrict-prototypes -CTUNING = -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums -#CEXTRA = -Wa,-adhlns=$(<:.c=.lst) -CFLAGS = $(CDEBUG) $(CDEFS) $(CINCS) -O$(OPT) $(CWARN) $(CSTANDARD) $(CEXTRA) \ - -fno-aggressive-loop-optimizations - -#ASFLAGS = -Wa,-adhlns=$(<:.S=.lst),-gstabs - - -#Additional libraries. - -# Minimalistic printf version -PRINTF_LIB_MIN = -Wl,-u,vfprintf -lprintf_min - -# Floating point printf version (requires MATH_LIB = -lm below) -PRINTF_LIB_FLOAT = -Wl,-u,vfprintf -lprintf_flt - -PRINTF_LIB = - -# Minimalistic scanf version -SCANF_LIB_MIN = -Wl,-u,vfscanf -lscanf_min - -# Floating point + %[ scanf version (requires MATH_LIB = -lm below) -SCANF_LIB_FLOAT = -Wl,-u,vfscanf -lscanf_flt - -SCANF_LIB = - -MATH_LIB = -lm - -# External memory options - -# 64 KB of external RAM, starting after internal RAM (ATmega128!), -# used for variables (.data/.bss) and heap (malloc()). -#EXTMEMOPTS = -Wl,--section-start,.data=0x801100,--defsym=__heap_end=0x80ffff - -# 64 KB of external RAM, starting after internal RAM (ATmega128!), -# only used for heap (malloc()). -#EXTMEMOPTS = -Wl,--defsym=__heap_start=0x801100,--defsym=__heap_end=0x80ffff - -EXTMEMOPTS = - -#LDMAP = $(LDFLAGS) -Wl,-Map=$(TARGET).map,--cref -LDFLAGS = $(EXTMEMOPTS) $(LDMAP) $(PRINTF_LIB) $(SCANF_LIB) $(MATH_LIB) - - -AVRDUDE_WRITE_FLASH = -U flash:w:$(TARGET).hex -#AVRDUDE_WRITE_EEPROM = -U eeprom:w:$(TARGET).eep - - -# Uncomment the following if you want avrdude's erase cycle counter. -# Note that this counter needs to be initialized first using -Yn, -# see avrdude manual. -#AVRDUDE_ERASE_COUNTER = -y - -# Uncomment the following if you do /not/ wish a verification to be -# performed after programming the device. -#AVRDUDE_NO_VERIFY = -V - -# Increase verbosity level. Please use this when submitting bug -# reports about avrdude. See -# to submit bug reports. -#AVRDUDE_VERBOSE = -v -v - -AVRDUDE_BASIC = -p $(MCU) -P $(AVRDUDE_PORT) -c $(AVRDUDE_PROGRAMMER) -AVRDUDE_FLAGS = $(AVRDUDE_BASIC) $(AVRDUDE_NO_VERIFY) $(AVRDUDE_VERBOSE) $(AVRDUDE_ERASE_COUNTER) - - -CC = avr-gcc -OBJCOPY = avr-objcopy -OBJDUMP = avr-objdump -SIZE = avr-size -NM = avr-nm -AVRDUDE = avrdude -REMOVE = rm -f -MV = mv -f - -# Define all object files. -OBJ = $(SRC:.c=.o) $(ASRC:.S=.o) - -# Define all listing files. -LST = $(ASRC:.S=.lst) $(SRC:.c=.lst) - -# Combine all necessary flags and optional flags. -# Add target processor to flags. -ALL_CFLAGS = -mmcu=$(MCU) -I. $(CFLAGS) -ALL_ASFLAGS = -mmcu=$(MCU) -I. -x assembler-with-cpp $(ASFLAGS) - - -# Default target. -all: build - -build: elf hex eep - -elf: $(TARGET).elf -hex: $(TARGET).hex -eep: $(TARGET).eep -lss: $(TARGET).lss -sym: $(TARGET).sym - - -# Program the device. -program: $(TARGET).hex $(TARGET).eep - $(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH) $(AVRDUDE_WRITE_EEPROM) - - -# Convert ELF to COFF for use in debugging / simulating in AVR Studio or VMLAB. -COFFCONVERT=$(OBJCOPY) --debugging \ ---change-section-address .data-0x800000 \ ---change-section-address .bss-0x800000 \ ---change-section-address .noinit-0x800000 \ ---change-section-address .eeprom-0x810000 - - -coff: $(TARGET).elf - $(COFFCONVERT) -O coff-avr $(TARGET).elf $(TARGET).cof - - -extcoff: $(TARGET).elf - $(COFFCONVERT) -O coff-ext-avr $(TARGET).elf $(TARGET).cof - - -.SUFFIXES: .elf .hex .eep .lss .sym - -.elf.hex: - $(OBJCOPY) -O $(FORMAT) -R .eeprom $< $@ - -.elf.eep: - -$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" \ - --change-section-lma .eeprom=0 -O $(FORMAT) $< $@ - -# Create extended listing file from ELF output file. -.elf.lss: - $(OBJDUMP) -h -S $< > $@ - -# Create a symbol table from ELF output file. -.elf.sym: - $(NM) -n $< > $@ - - - -# Link: create ELF output file from object files. -$(TARGET).elf: $(OBJ) - $(CC) $(ALL_CFLAGS) $(OBJ) --output $@ $(LDFLAGS) - - -# Compile: create object files from C source files. -.c.o: - $(CC) -c $(ALL_CFLAGS) $< -o $@ - - -# Compile: create assembler files from C source files. -.c.s: - $(CC) -S $(ALL_CFLAGS) $< -o $@ - - -# Assemble: create object files from assembler source files. -.S.o: - $(CC) -c $(ALL_ASFLAGS) $< -o $@ - - - -# Target: clean project. -clean: - $(REMOVE) $(TARGET).hex $(TARGET).eep $(TARGET).cof $(TARGET).elf \ - $(TARGET).map $(TARGET).sym $(TARGET).lss \ - $(OBJ) $(LST) $(SRC:.c=.s) $(SRC:.c=.d) - -depend: - if grep '^# DO NOT DELETE' $(MAKEFILE) >/dev/null; \ - then \ - sed -e '/^# DO NOT DELETE/,$$d' $(MAKEFILE) > \ - $(MAKEFILE).$$$$ && \ - $(MV) $(MAKEFILE).$$$$ $(MAKEFILE); \ - fi - echo '# DO NOT DELETE THIS LINE -- make depend depends on it.' \ - >> $(MAKEFILE); \ - $(CC) -M -mmcu=$(MCU) $(CDEFS) $(CINCS) $(SRC) $(ASRC) >> $(MAKEFILE) - -.PHONY: all build elf hex eep lss sym program coff extcoff clean depend diff --git a/keyboards/lets_split/uno-slave/keyboard-i2c-slave.c b/keyboards/lets_split/uno-slave/keyboard-i2c-slave.c deleted file mode 100644 index 2043e7b94f..0000000000 --- a/keyboards/lets_split/uno-slave/keyboard-i2c-slave.c +++ /dev/null @@ -1,42 +0,0 @@ -#include "../i2c-slave.h" -#include "../serial.h" -#include "uno-matrix.h" - -#include -#include -#include - -void setup(void) { - // give some time for noise to clear - _delay_us(1000); - - // turn off arduino uno's led on pin 13 - DDRB |= (1 << 5); - PORTB &= ~(1 << 5); - - matrix_init(); - /* i2c_slave_init(0x32); */ - serial_slave_init(); - - /* serial_slave_buffer[0] = 0xa1; */ - /* serial_slave_buffer[1] = 0x52; */ - /* serial_slave_buffer[2] = 0xa2; */ - /* serial_slave_buffer[3] = 0x67; */ - - // need interrupts for i2c slave code to work - sei(); -} - -void loop(void) { - matrix_scan(); - for(int i=0; i -#include -#include - -#include "uno-matrix.h" - -#define debug(X) NULL -#define debug_hex(X) NULL - -#ifndef DEBOUNCE -# define DEBOUNCE 5 -#endif - -static uint8_t debouncing = DEBOUNCE; - -/* matrix state(1:on, 0:off) */ -static matrix_row_t matrix[MATRIX_ROWS]; -static matrix_row_t matrix_debouncing[MATRIX_ROWS]; - -static matrix_row_t read_cols(void); -static void init_cols(void); -static void unselect_rows(void); -static void select_row(uint8_t row); - -inline -uint8_t matrix_rows(void) -{ - return MATRIX_ROWS; -} - -inline -uint8_t matrix_cols(void) -{ - return MATRIX_COLS; -} - -void matrix_init(void) -{ - //debug_enable = true; - //debug_matrix = true; - //debug_mouse = true; - // initialize row and col - unselect_rows(); - init_cols(); - - // initialize matrix state: all keys off - for (uint8_t i=0; i < MATRIX_ROWS; i++) { - matrix[i] = 0; - matrix_debouncing[i] = 0; - } -} - -uint8_t matrix_scan(void) -{ - for (uint8_t i = 0; i < MATRIX_ROWS; i++) { - select_row(i); - _delay_us(30); // without this wait read unstable value. - matrix_row_t cols = read_cols(); - //Serial.println(cols, BIN); - if (matrix_debouncing[i] != cols) { - matrix_debouncing[i] = cols; - if (debouncing) { - debug("bounce!: "); debug_hex(debouncing); debug("\n"); - } - debouncing = DEBOUNCE; - } - unselect_rows(); - } - - if (debouncing) { - if (--debouncing) { - _delay_ms(1); - } else { - for (uint8_t i = 0; i < MATRIX_ROWS; i++) { - matrix[i] = matrix_debouncing[i]; - } - } - } - - return 1; -} - -bool matrix_is_modified(void) -{ - if (debouncing) return false; - return true; -} - -inline -bool matrix_is_on(uint8_t row, uint8_t col) -{ - return (matrix[row] & ((matrix_row_t)1< - -typedef uint8_t matrix_row_t; - -uint8_t matrix_rows(void); -uint8_t matrix_cols(void); -void matrix_init(void); -uint8_t matrix_scan(void); -bool matrix_is_modified(void); -bool matrix_is_on(uint8_t row, uint8_t col); -matrix_row_t matrix_get_row(uint8_t row); - -#endif diff --git a/keyboards/lets_split/uno_slave/Makefile b/keyboards/lets_split/uno_slave/Makefile new file mode 100644 index 0000000000..84e67de113 --- /dev/null +++ b/keyboards/lets_split/uno_slave/Makefile @@ -0,0 +1,226 @@ +# Hey Emacs, this is a -*- makefile -*- + +# AVR-GCC Makefile template, derived from the WinAVR template (which +# is public domain), believed to be neutral to any flavor of "make" +# (GNU make, BSD make, SysV make) + + +MCU = atmega328p +FORMAT = ihex +TARGET = keyboard-i2c-slave +SRC = \ + $(TARGET).c \ + uno-matrix.c \ + ../serial.c \ + ../i2c-slave.c + +ASRC = +OPT = s + +# Programming support using avrdude. Settings and variables. + +AVRDUDE_PROGRAMMER = arduino +AVRDUDE_PORT = /dev/ttyACM0 + +# Name of this Makefile (used for "make depend"). +MAKEFILE = Makefile + +# Debugging format. +# Native formats for AVR-GCC's -g are stabs [default], or dwarf-2. +# AVR (extended) COFF requires stabs, plus an avr-objcopy run. +DEBUG = stabs + +# Compiler flag to set the C Standard level. +# c89 - "ANSI" C +# gnu89 - c89 plus GCC extensions +# c99 - ISO C99 standard (not yet fully implemented) +# gnu99 - c99 plus GCC extensions +CSTANDARD = -std=gnu99 + +# Place -D or -U options here +CDEFS = + +# Place -I options here +CINCS = + + +CDEBUG = -g$(DEBUG) +CWARN = -Wall -Wstrict-prototypes +CTUNING = -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums +#CEXTRA = -Wa,-adhlns=$(<:.c=.lst) +CFLAGS = $(CDEBUG) $(CDEFS) $(CINCS) -O$(OPT) $(CWARN) $(CSTANDARD) $(CEXTRA) \ + -fno-aggressive-loop-optimizations + +#ASFLAGS = -Wa,-adhlns=$(<:.S=.lst),-gstabs + + +#Additional libraries. + +# Minimalistic printf version +PRINTF_LIB_MIN = -Wl,-u,vfprintf -lprintf_min + +# Floating point printf version (requires MATH_LIB = -lm below) +PRINTF_LIB_FLOAT = -Wl,-u,vfprintf -lprintf_flt + +PRINTF_LIB = + +# Minimalistic scanf version +SCANF_LIB_MIN = -Wl,-u,vfscanf -lscanf_min + +# Floating point + %[ scanf version (requires MATH_LIB = -lm below) +SCANF_LIB_FLOAT = -Wl,-u,vfscanf -lscanf_flt + +SCANF_LIB = + +MATH_LIB = -lm + +# External memory options + +# 64 KB of external RAM, starting after internal RAM (ATmega128!), +# used for variables (.data/.bss) and heap (malloc()). +#EXTMEMOPTS = -Wl,--section-start,.data=0x801100,--defsym=__heap_end=0x80ffff + +# 64 KB of external RAM, starting after internal RAM (ATmega128!), +# only used for heap (malloc()). +#EXTMEMOPTS = -Wl,--defsym=__heap_start=0x801100,--defsym=__heap_end=0x80ffff + +EXTMEMOPTS = + +#LDMAP = $(LDFLAGS) -Wl,-Map=$(TARGET).map,--cref +LDFLAGS = $(EXTMEMOPTS) $(LDMAP) $(PRINTF_LIB) $(SCANF_LIB) $(MATH_LIB) + + +AVRDUDE_WRITE_FLASH = -U flash:w:$(TARGET).hex +#AVRDUDE_WRITE_EEPROM = -U eeprom:w:$(TARGET).eep + + +# Uncomment the following if you want avrdude's erase cycle counter. +# Note that this counter needs to be initialized first using -Yn, +# see avrdude manual. +#AVRDUDE_ERASE_COUNTER = -y + +# Uncomment the following if you do /not/ wish a verification to be +# performed after programming the device. +#AVRDUDE_NO_VERIFY = -V + +# Increase verbosity level. Please use this when submitting bug +# reports about avrdude. See +# to submit bug reports. +#AVRDUDE_VERBOSE = -v -v + +AVRDUDE_BASIC = -p $(MCU) -P $(AVRDUDE_PORT) -c $(AVRDUDE_PROGRAMMER) +AVRDUDE_FLAGS = $(AVRDUDE_BASIC) $(AVRDUDE_NO_VERIFY) $(AVRDUDE_VERBOSE) $(AVRDUDE_ERASE_COUNTER) + + +CC = avr-gcc +OBJCOPY = avr-objcopy +OBJDUMP = avr-objdump +SIZE = avr-size +NM = avr-nm +AVRDUDE = avrdude +REMOVE = rm -f +MV = mv -f + +# Define all object files. +OBJ = $(SRC:.c=.o) $(ASRC:.S=.o) + +# Define all listing files. +LST = $(ASRC:.S=.lst) $(SRC:.c=.lst) + +# Combine all necessary flags and optional flags. +# Add target processor to flags. +ALL_CFLAGS = -mmcu=$(MCU) -I. $(CFLAGS) +ALL_ASFLAGS = -mmcu=$(MCU) -I. -x assembler-with-cpp $(ASFLAGS) + + +# Default target. +all: build + +build: elf hex eep + +elf: $(TARGET).elf +hex: $(TARGET).hex +eep: $(TARGET).eep +lss: $(TARGET).lss +sym: $(TARGET).sym + + +# Program the device. +program: $(TARGET).hex $(TARGET).eep + $(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH) $(AVRDUDE_WRITE_EEPROM) + + +# Convert ELF to COFF for use in debugging / simulating in AVR Studio or VMLAB. +COFFCONVERT=$(OBJCOPY) --debugging \ +--change-section-address .data-0x800000 \ +--change-section-address .bss-0x800000 \ +--change-section-address .noinit-0x800000 \ +--change-section-address .eeprom-0x810000 + + +coff: $(TARGET).elf + $(COFFCONVERT) -O coff-avr $(TARGET).elf $(TARGET).cof + + +extcoff: $(TARGET).elf + $(COFFCONVERT) -O coff-ext-avr $(TARGET).elf $(TARGET).cof + + +.SUFFIXES: .elf .hex .eep .lss .sym + +.elf.hex: + $(OBJCOPY) -O $(FORMAT) -R .eeprom $< $@ + +.elf.eep: + -$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" \ + --change-section-lma .eeprom=0 -O $(FORMAT) $< $@ + +# Create extended listing file from ELF output file. +.elf.lss: + $(OBJDUMP) -h -S $< > $@ + +# Create a symbol table from ELF output file. +.elf.sym: + $(NM) -n $< > $@ + + + +# Link: create ELF output file from object files. +$(TARGET).elf: $(OBJ) + $(CC) $(ALL_CFLAGS) $(OBJ) --output $@ $(LDFLAGS) + + +# Compile: create object files from C source files. +.c.o: + $(CC) -c $(ALL_CFLAGS) $< -o $@ + + +# Compile: create assembler files from C source files. +.c.s: + $(CC) -S $(ALL_CFLAGS) $< -o $@ + + +# Assemble: create object files from assembler source files. +.S.o: + $(CC) -c $(ALL_ASFLAGS) $< -o $@ + + + +# Target: clean project. +clean: + $(REMOVE) $(TARGET).hex $(TARGET).eep $(TARGET).cof $(TARGET).elf \ + $(TARGET).map $(TARGET).sym $(TARGET).lss \ + $(OBJ) $(LST) $(SRC:.c=.s) $(SRC:.c=.d) + +depend: + if grep '^# DO NOT DELETE' $(MAKEFILE) >/dev/null; \ + then \ + sed -e '/^# DO NOT DELETE/,$$d' $(MAKEFILE) > \ + $(MAKEFILE).$$$$ && \ + $(MV) $(MAKEFILE).$$$$ $(MAKEFILE); \ + fi + echo '# DO NOT DELETE THIS LINE -- make depend depends on it.' \ + >> $(MAKEFILE); \ + $(CC) -M -mmcu=$(MCU) $(CDEFS) $(CINCS) $(SRC) $(ASRC) >> $(MAKEFILE) + +.PHONY: all build elf hex eep lss sym program coff extcoff clean depend diff --git a/keyboards/lets_split/uno_slave/keyboard-i2c-slave.c b/keyboards/lets_split/uno_slave/keyboard-i2c-slave.c new file mode 100644 index 0000000000..2043e7b94f --- /dev/null +++ b/keyboards/lets_split/uno_slave/keyboard-i2c-slave.c @@ -0,0 +1,42 @@ +#include "../i2c-slave.h" +#include "../serial.h" +#include "uno-matrix.h" + +#include +#include +#include + +void setup(void) { + // give some time for noise to clear + _delay_us(1000); + + // turn off arduino uno's led on pin 13 + DDRB |= (1 << 5); + PORTB &= ~(1 << 5); + + matrix_init(); + /* i2c_slave_init(0x32); */ + serial_slave_init(); + + /* serial_slave_buffer[0] = 0xa1; */ + /* serial_slave_buffer[1] = 0x52; */ + /* serial_slave_buffer[2] = 0xa2; */ + /* serial_slave_buffer[3] = 0x67; */ + + // need interrupts for i2c slave code to work + sei(); +} + +void loop(void) { + matrix_scan(); + for(int i=0; i +#include +#include + +#include "uno-matrix.h" + +#define debug(X) NULL +#define debug_hex(X) NULL + +#ifndef DEBOUNCE +# define DEBOUNCE 5 +#endif + +static uint8_t debouncing = DEBOUNCE; + +/* matrix state(1:on, 0:off) */ +static matrix_row_t matrix[MATRIX_ROWS]; +static matrix_row_t matrix_debouncing[MATRIX_ROWS]; + +static matrix_row_t read_cols(void); +static void init_cols(void); +static void unselect_rows(void); +static void select_row(uint8_t row); + +inline +uint8_t matrix_rows(void) +{ + return MATRIX_ROWS; +} + +inline +uint8_t matrix_cols(void) +{ + return MATRIX_COLS; +} + +void matrix_init(void) +{ + //debug_enable = true; + //debug_matrix = true; + //debug_mouse = true; + // initialize row and col + unselect_rows(); + init_cols(); + + // initialize matrix state: all keys off + for (uint8_t i=0; i < MATRIX_ROWS; i++) { + matrix[i] = 0; + matrix_debouncing[i] = 0; + } +} + +uint8_t matrix_scan(void) +{ + for (uint8_t i = 0; i < MATRIX_ROWS; i++) { + select_row(i); + _delay_us(30); // without this wait read unstable value. + matrix_row_t cols = read_cols(); + //Serial.println(cols, BIN); + if (matrix_debouncing[i] != cols) { + matrix_debouncing[i] = cols; + if (debouncing) { + debug("bounce!: "); debug_hex(debouncing); debug("\n"); + } + debouncing = DEBOUNCE; + } + unselect_rows(); + } + + if (debouncing) { + if (--debouncing) { + _delay_ms(1); + } else { + for (uint8_t i = 0; i < MATRIX_ROWS; i++) { + matrix[i] = matrix_debouncing[i]; + } + } + } + + return 1; +} + +bool matrix_is_modified(void) +{ + if (debouncing) return false; + return true; +} + +inline +bool matrix_is_on(uint8_t row, uint8_t col) +{ + return (matrix[row] & ((matrix_row_t)1< + +typedef uint8_t matrix_row_t; + +uint8_t matrix_rows(void); +uint8_t matrix_cols(void); +void matrix_init(void); +uint8_t matrix_scan(void); +bool matrix_is_modified(void); +bool matrix_is_on(uint8_t row, uint8_t col); +matrix_row_t matrix_get_row(uint8_t row); + +#endif -- cgit v1.2.3