diff options
Diffstat (limited to 'keyboards/lets_split/uno_slave')
-rw-r--r-- | keyboards/lets_split/uno_slave/Makefile | 226 | ||||
-rw-r--r-- | keyboards/lets_split/uno_slave/keyboard-i2c-slave.c | 42 | ||||
-rw-r--r-- | keyboards/lets_split/uno_slave/readme.md | 1 | ||||
-rw-r--r-- | keyboards/lets_split/uno_slave/uno-matrix.c | 160 | ||||
-rw-r--r-- | keyboards/lets_split/uno_slave/uno-matrix.h | 19 |
5 files changed, 448 insertions, 0 deletions
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 <http://savannah.nongnu.org/projects/avrdude> +# 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 <avr/io.h> +#include <avr/interrupt.h> +#include <util/delay.h> + +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<MATRIX_ROWS; ++i) { + slaveBuffer[i] = matrix_get_row(i); + serial_slave_buffer[i] = slaveBuffer[i]; + } +} + +int main(int argc, char *argv[]) { + setup(); + while (1) + loop(); +} diff --git a/keyboards/lets_split/uno_slave/readme.md b/keyboards/lets_split/uno_slave/readme.md new file mode 100644 index 0000000000..d0f03126c3 --- /dev/null +++ b/keyboards/lets_split/uno_slave/readme.md @@ -0,0 +1 @@ +Code for Arduino uno (atmega328p) slave used for testing. diff --git a/keyboards/lets_split/uno_slave/uno-matrix.c b/keyboards/lets_split/uno_slave/uno-matrix.c new file mode 100644 index 0000000000..4ac3c33acd --- /dev/null +++ b/keyboards/lets_split/uno_slave/uno-matrix.c @@ -0,0 +1,160 @@ +#define F_CPU 16000000UL + +#include <util/delay.h> +#include <avr/io.h> +#include <stdlib.h> + +#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<<col)); +} + +inline +matrix_row_t matrix_get_row(uint8_t row) +{ + return matrix[row]; +} + +// TODO update this comment +/* Column pin configuration + * col: 0 1 2 3 4 5 + * pin: D3 D4 D5 D6 D7 B0 + */ +static void init_cols(void) +{ + // Input with pull-up(DDR:0, PORT:1) + DDRD &= ~(1<<3 | 1<<4 | 1<<5 | 1<<6 | 1<<7); + PORTD |= (1<<3 | 1<<4 | 1<<5 | 1<<6 | 1<<7); + + DDRB &= ~(1<<0); + PORTB |= (1<<0); +} + +static matrix_row_t read_cols(void) +{ + return (PIND&(1<<3) ? 0 : (1<<0)) | + (PIND&(1<<4) ? 0 : (1<<1)) | + (PIND&(1<<5) ? 0 : (1<<2)) | + (PIND&(1<<6) ? 0 : (1<<3)) | + (PIND&(1<<7) ? 0 : (1<<4)) | + (PINB&(1<<0) ? 0 : (1<<5)); +} + +/* Row pin configuration + * row: 0 1 2 3 + * pin: C0 C1 C2 C3 + */ +static void unselect_rows(void) +{ + // Hi-Z(DDR:0, PORT:0) to unselect + DDRC &= ~0xF; + PORTC &= ~0xF; +} + +static void select_row(uint8_t row) +{ + // Output low(DDR:1, PORT:0) to select + switch (row) { + case 0: + DDRC |= (1<<0); + PORTC &= ~(1<<0); + break; + case 1: + DDRC |= (1<<1); + PORTC &= ~(1<<1); + break; + case 2: + DDRC |= (1<<2); + PORTC &= ~(1<<2); + break; + case 3: + DDRC |= (1<<3); + PORTC &= ~(1<<3); + break; + } +} diff --git a/keyboards/lets_split/uno_slave/uno-matrix.h b/keyboards/lets_split/uno_slave/uno-matrix.h new file mode 100644 index 0000000000..c0f636f805 --- /dev/null +++ b/keyboards/lets_split/uno_slave/uno-matrix.h @@ -0,0 +1,19 @@ +#ifndef UNO_MATRIX +#define UNO_MATRIX + +#define MATRIX_ROWS 4 +#define MATRIX_COLS 6 + +#include <stdbool.h> + +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 |