M keyboards/ferris/0_1/matrix.c => keyboards/ferris/0_1/matrix.c +24 -53
@@ 72,40 72,25 @@ uint8_t init_mcp23017(void) {
// - unused : input : 1
// - input : input : 1
// - driving : output : 0
- mcp23017_status = i2c_start(I2C_ADDR_WRITE, I2C_TIMEOUT);
- if (mcp23017_status) goto out;
- mcp23017_status = i2c_write(IODIRA, I2C_TIMEOUT);
- if (mcp23017_status) goto out;
// This means: we will read all the bits on GPIOA
- mcp23017_status = i2c_write(0b11111111, I2C_TIMEOUT);
- if (mcp23017_status) goto out;
// This means: we will write to the pins 0-4 on GPIOB (in select_rows)
- mcp23017_status = i2c_write(0b11110000, I2C_TIMEOUT);
- if (mcp23017_status) goto out;
- i2c_stop();
-
- // set pull-up
- // - unused : on : 1
- // - input : on : 1
- // - driving : off : 0
- mcp23017_status = i2c_start(I2C_ADDR_WRITE, I2C_TIMEOUT);
- if (mcp23017_status) goto out;
- mcp23017_status = i2c_write(GPPUA, I2C_TIMEOUT);
- if (mcp23017_status) goto out;
- // This means: we will read all the bits on GPIOA
- mcp23017_status = i2c_write(0b11111111, I2C_TIMEOUT);
- if (mcp23017_status) goto out;
- // This means: we will write to the pins 0-4 on GPIOB (in select_rows)
- mcp23017_status = i2c_write(0b11110000, I2C_TIMEOUT);
- if (mcp23017_status) goto out;
-
-out:
- i2c_stop();
+ uint8_t buf[] = {IODIRA, 0b11111111, 0b11110000};
+ mcp23017_status = i2c_transmit(I2C_ADDR_WRITE, buf, sizeof(buf), I2C_TIMEOUT);
+ if (!mcp23017_status) {
+ // set pull-up
+ // - unused : on : 1
+ // - input : on : 1
+ // - driving : off : 0
+ // This means: we will read all the bits on GPIOA
+ // This means: we will write to the pins 0-4 on GPIOB (in select_rows)
+ uint8_t pullup_buf[] = {GPPUA, 0b11111111, 0b11110000};
+ mcp23017_status = i2c_transmit(I2C_ADDR_WRITE, pullup_buf, sizeof(pullup_buf), I2C_TIMEOUT);
+ }
return mcp23017_status;
}
/* matrix state(1:on, 0:off) */
-static matrix_row_t matrix[MATRIX_ROWS]; // debounced values
+static matrix_row_t matrix[MATRIX_ROWS]; // debounced values
static matrix_row_t read_cols(uint8_t row);
static void init_cols(void);
@@ 124,7 109,7 @@ void matrix_init_custom(void) {
// initialize matrix state: all keys off
for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
- matrix[i] = 0;
+ matrix[i] = 0;
}
}
@@ 217,25 202,18 @@ static matrix_row_t read_cols(uint8_t row) {
if (mcp23017_status) { // if there was an error
return 0;
} else {
- uint8_t data = 0;
- mcp23017_status = i2c_start(I2C_ADDR_WRITE, I2C_TIMEOUT);
- if (mcp23017_status) goto out;
- mcp23017_status = i2c_write(GPIOA, I2C_TIMEOUT);
- if (mcp23017_status) goto out;
- mcp23017_status = i2c_start(I2C_ADDR_READ, I2C_TIMEOUT);
- if (mcp23017_status) goto out;
- mcp23017_status = i2c_read_nack(I2C_TIMEOUT);
- if (mcp23017_status < 0) goto out;
+ uint8_t buf[] = {GPIOA};
+ mcp23017_status = i2c_transmit(I2C_ADDR_WRITE, buf, sizeof(buf), I2C_TIMEOUT);
// We read all the pins on GPIOA.
// The initial state was all ones and any depressed key at a given column for the currently selected row will have its bit flipped to zero.
// The return value is a row as represented in the generic matrix code were the rightmost bits represent the lower columns and zeroes represent non-depressed keys while ones represent depressed keys.
// Since the pins connected to eact columns are sequential, and counting from zero up (col 5 -> GPIOA0, col 6 -> GPIOA1 and so on), the only transformation needed is a bitwise not to swap all zeroes and ones.
- data = ~((uint8_t)mcp23017_status);
- mcp23017_status = I2C_STATUS_SUCCESS;
- out:
- i2c_stop();
- // return reverse_bits(data, MATRIX_COLS_PER_SIDE);
- return data;
+ uint8_t data[] = {0};
+ if (!mcp23017_status) {
+ mcp23017_status = i2c_receive(I2C_ADDR_READ, data, sizeof(data), I2C_TIMEOUT);
+ data[0] = ~(data[0]);
+ }
+ return data[0];
}
}
}
@@ 266,17 244,10 @@ static void select_row(uint8_t row) {
if (mcp23017_status) { // if there was an error
// do nothing
} else {
- mcp23017_status = i2c_start(I2C_ADDR_WRITE, I2C_TIMEOUT);
- if (mcp23017_status) goto out;
- mcp23017_status = i2c_write(GPIOB, I2C_TIMEOUT);
- if (mcp23017_status) goto out;
// Select the desired row by writing a byte for the entire GPIOB bus where only the bit representing the row we want to select is a zero (write instruction) and every other bit is a one.
// Note that the row - MATRIX_ROWS_PER_SIDE reflects the fact that being on the right hand, the columns are numbered from MATRIX_ROWS_PER_SIDE to MATRIX_ROWS, but the pins we want to write to are indexed from zero up on the GPIOB bus.
- mcp23017_status = i2c_write(0xFF & ~(1 << (row - MATRIX_ROWS_PER_SIDE)), I2C_TIMEOUT);
-
- if (mcp23017_status) goto out;
- out:
- i2c_stop();
+ uint8_t buf[] = {GPIOB, 0xFF & ~(1 << (row - MATRIX_ROWS_PER_SIDE))};
+ mcp23017_status = i2c_transmit(I2C_ADDR_WRITE, buf, sizeof(buf), I2C_TIMEOUT);
}
}
}
A keyboards/ferris/0_1/readme.md => keyboards/ferris/0_1/readme.md +17 -0
@@ 0,0 1,17 @@
+# Ferris 0.1
+
+
+
+
+An atmega32u4 based split 34 keys column staggered keyboard named and decorated after the rustlang mascott. All PCB files and some thoughts on the design are available on the [project's github page](https://github.com/pierrechevalier83/ferris)
+
+* Keyboard Maintainer: [Pierre Chevalier](https://github.com/pierrechevalier83)
+* Hardware Supported:
+ * Ferris 0.1: atmega32u4 chip. Comes in 4 variants: base, low, high and compact
+* Hardware Availability: Pierre Chevalier has been selling keyboard kits (see the #ferris channel in the 40% discord chat). Wider availability is on the horizon.
+
+Make examples for this keyboard (after setting up your build environment):
+
+ make ferris/0_1:default
+
+See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).
A keyboards/ferris/0_2/0_2.c => keyboards/ferris/0_2/0_2.c +17 -0
@@ 0,0 1,17 @@
+/*
+Copyright 2020 Pierre Chevalier <pierrechevalier83@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+#include "0_2.h"
A keyboards/ferris/0_2/0_2.h => keyboards/ferris/0_2/0_2.h +43 -0
@@ 0,0 1,43 @@
+/*
+Copyright 2020 Pierre Chevalier <pierrechevalier83@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#pragma once
+
+#include "quantum.h"
+
+// clang-format off
+
+/* left hand right hand */
+#define LAYOUT(\
+ K0_0, K0_1, K0_2, K0_3, K0_4, K0_5, K0_6, K0_7, K0_8, K0_9,\
+ K1_0, K1_1, K1_2, K1_3, K1_4, K1_5, K1_6, K1_7, K1_8, K1_9,\
+ K2_0, K2_1, K2_2, K2_3, K2_4, K2_5, K2_6, K2_7, K2_8, K2_9,\
+ K3_3, K3_4, K3_5, K3_6)\
+/* matrix positions */\
+{\
+ {K0_0, K0_1, K0_2, K0_3, K0_4},\
+ {K1_0, K1_1, K1_2, K1_3, K1_4},\
+ {K2_0, K2_1, K2_2, K2_3, K2_4},\
+ {KC_NO, KC_NO, KC_NO, K3_3, K3_4},\
+ \
+ {K0_5, K0_6, K0_7, K0_8, K0_9},\
+ {K1_5, K1_6, K1_7, K1_8, K1_9},\
+ {K2_5, K2_6, K2_7, K2_8, K2_9},\
+ {K3_5, K3_6, KC_NO, KC_NO, KC_NO}\
+}
+
+// clang-format on
A keyboards/ferris/0_2/chconf.h => keyboards/ferris/0_2/chconf.h +40 -0
@@ 0,0 1,40 @@
+/* Copyright 2020 QMK
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/*
+ * This file was auto-generated by:
+ * `qmk chibios-confmigrate -i keyboards/ferris/0_2/chconf.h -r platforms/chibios/common/configs/chconf.h`
+ */
+
+#pragma once
+
+#define CH_CFG_ST_FREQUENCY 10000
+
+#define CH_CFG_OPTIMIZE_SPEED FALSE
+
+#define CH_CFG_USE_REGISTRY TRUE
+
+#define CH_CFG_USE_WAITEXIT TRUE
+
+#define CH_CFG_USE_CONDVARS TRUE
+
+#define CH_CFG_USE_CONDVARS_TIMEOUT FALSE
+
+#define CH_CFG_USE_MESSAGES TRUE
+
+#define CH_CFG_USE_MAILBOXES TRUE
+
+#include_next <chconf.h>
A keyboards/ferris/0_2/config.h => keyboards/ferris/0_2/config.h +80 -0
@@ 0,0 1,80 @@
+/*
+Copyright 2020 Pierre Chevalier <pierrechevalier83@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#pragma once
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID 0xC2AB
+#define PRODUCT_ID 0x0001
+#define DEVICE_VER 0x0002
+#define MANUFACTURER Pierre
+#define PRODUCT Ferris the keeb
+
+/* key matrix size */
+#define MATRIX_ROWS 8
+#define MATRIX_COLS 10
+
+#define MATRIX_ROWS_PER_SIDE (MATRIX_ROWS / 2)
+#define MATRIX_COLS_PER_SIDE (MATRIX_COLS / 2)
+
+#define UNUSED_MCU 24
+#define UNUSED_MCP 7
+
+// wiring
+#define MATRIX_ROW_PINS_MCU \
+ { B7, B6, B5, A2 }
+#define MATRIX_COL_PINS_MCU \
+ { B8, B4, B3, A15, A14 }
+#define UNUSED_PINS_MCU \
+ { A0, A1, A3, A4, A5, A6, A7, A8, A9, A10, A13, B0, B1, B2, B9, B12, B13, B14, B15, C13, C14, C15, F0, F1 }
+#define MATRIX_ROW_PINS_MCP \
+ { B0, B1, B2, B3 }
+#define MATRIX_COL_PINS_MCP \
+ { A0, A1, A2, A3, A4 }
+#define UNUSED_PINS_MCP \
+ { B4, B5, B6, B7, A5, A6, A7 }
+
+#define MATRIX_ROW_PINS \
+ { B7, B6, B5, A2, A0, A0, A0, A0 }
+#define MATRIX_COL_PINS \
+ { B8, B4, B3, A15, A14, A1, A1, A1, A1, A1 }
+#define UNUSED_PINS \
+ { A3, A4, A5, A6, A7, A8, A9, A10, A13, B0, B1, B2, B9, B12, B13, B14, B15, C13, C14, C15, F0, F1 }
+
+/* COL2ROW, ROW2COL*/
+#define DIODE_DIRECTION COL2ROW
+
+/* define if matrix has ghost (lacks anti-ghosting diodes) */
+//#define MATRIX_HAS_GHOST
+
+/* Debounce reduces chatter (unintended double-presses) - set 0 if debouncing is not needed */
+#define DEBOUNCE 5
+
+/* i2c settings */
+
+#define I2C_DRIVER I2CD2
+#define I2C1_SCL_BANK GPIOB
+#define I2C1_SCL 10
+#define I2C1_SDA_BANK GPIOB
+#define I2C1_SDA 11
+#define I2C1_TIMINGR_PRESC 2U
+#define I2C1_TIMINGR_SCLDEL 1U
+#define I2C1_TIMINGR_SDADEL 0U
+#define I2C1_TIMINGR_SCLH 9U
+#define I2C1_TIMINGR_SCLL 26U
+#define I2C1_SCL_PAL_MODE 1
+#define I2C1_SDA_PAL_MODE 1
A keyboards/ferris/0_2/halconf.h => keyboards/ferris/0_2/halconf.h +30 -0
@@ 0,0 1,30 @@
+/* Copyright 2020 QMK
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/*
+ * This file was auto-generated by:
+ * `qmk chibios-confmigrate -i keyboards/ferris/0_2/halconf.h -r platforms/chibios/common/configs/halconf.h`
+ */
+
+#pragma once
+
+#define HAL_USE_I2C TRUE
+
+#define HAL_USE_PWM TRUE
+
+#define HAL_USE_SPI TRUE
+
+#include_next <halconf.h>
A keyboards/ferris/0_2/matrix.c => keyboards/ferris/0_2/matrix.c +255 -0
@@ 0,0 1,255 @@
+/*
+Copyright 2013 Oleg Kostyuk <cub.uanic@gmail.com>
+ 2020 Pierre Chevalier <pierrechevalier83@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/*
+ * This code was heavily inspired by the ergodox_ez keymap, and modernized
+ * to take advantage of the quantum.h microcontroller agnostics gpio control
+ * abstractions and use the macros defined in config.h for the wiring as opposed
+ * to repeating that information all over the place.
+ */
+
+#include QMK_KEYBOARD_H
+#include "i2c_master.h"
+#include <print.h>
+
+extern i2c_status_t mcp23017_status;
+#define MCP23017_I2C_TIMEOUT 1000
+#define I2C_WRITE 0x00
+#define I2C_READ 0x01
+// For a better understanding of the i2c protocol, this is a good read:
+// https://www.robot-electronics.co.uk/i2c-tutorial
+
+// I2C address:
+// See the datasheet, section 3.3.1 on addressing I2C devices and figure 3-6 for an
+// illustration
+// http://ww1.microchip.com/downloads/en/devicedoc/20001952c.pdf
+// All address pins of the mcp23017 are connected to the ground on the ferris
+// | 0 | 1 | 0 | 0 | A2 | A1 | A0 |
+// | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
+#define I2C_ADDR 0b0100000
+#define I2C_ADDR_WRITE ((I2C_ADDR << 1) | I2C_WRITE)
+#define I2C_ADDR_READ ((I2C_ADDR << 1) | I2C_READ)
+
+// Register addresses
+// See https://github.com/adafruit/Adafruit-MCP23017-Arduino-Library/blob/master/Adafruit_MCP23017.h
+#define IODIRA 0x00 // i/o direction register
+#define IODIRB 0x01
+#define GPPUA 0x0C // GPIO pull-up resistor register
+#define GPPUB 0x0D
+#define MCP23017_GPIOA 0x12 // general purpose i/o port register (write modifies OLAT)
+#define MCP23017_GPIOB 0x13
+#define OLATA 0x14 // output latch register
+#define OLATB 0x15
+
+bool i2c_initialized = 0;
+i2c_status_t mcp23017_status = I2C_ADDR;
+
+#define I2C2_SCL_BANK GPIOB
+#define I2C2_SCL 10
+#define I2C2_SDA_BANK GPIOB
+#define I2C2_SDA 11
+
+uint8_t init_mcp23017(void) {
+ print("init mcp23017\n");
+ mcp23017_status = I2C_ADDR;
+
+ // I2C subsystem
+ if (i2c_initialized == 0) {
+ i2c_init(); // on pins D(1,0)
+ i2c_initialized = true;
+ wait_ms(MCP23017_I2C_TIMEOUT);
+ }
+
+ // set pin direction
+ // - unused : input : 1
+ // - input : input : 1
+ // - driving : output : 0
+ // This means: we will read all the bits on GPIOA
+ // This means: we will write to the pins 0-4 on GPIOB (in select_rows)
+ uint8_t buf[] = {IODIRA, 0b11111111, 0b11110000};
+ print("before transmit\n");
+ mcp23017_status = i2c_transmit(I2C_ADDR_WRITE, buf, sizeof(buf), MCP23017_I2C_TIMEOUT);
+ uprintf("after transmit %i\n", mcp23017_status);
+ if (!mcp23017_status) {
+ // set pull-up
+ // - unused : on : 1
+ // - input : on : 1
+ // - driving : off : 0
+ // This means: we will read all the bits on GPIOA
+ // This means: we will write to the pins 0-4 on GPIOB (in select_rows)
+ uint8_t pullup_buf[] = {GPPUA, 0b11111111, 0b11110000};
+ mcp23017_status = i2c_transmit(I2C_ADDR_WRITE, pullup_buf, sizeof(pullup_buf), MCP23017_I2C_TIMEOUT);
+ uprintf("after transmit2 %i\n", mcp23017_status);
+ }
+ return mcp23017_status;
+}
+
+/* matrix state(1:on, 0:off) */
+static matrix_row_t matrix[MATRIX_ROWS]; // debounced values
+
+static matrix_row_t read_cols(uint8_t row);
+static void unselect_row(uint8_t row);
+static void unselect_rows(void);
+static void unselect_cols(void);
+static void select_row(uint8_t row);
+
+static uint8_t mcp23017_reset_loop;
+
+static void init_mcu_pins(void) {
+ unselect_rows();
+ unselect_cols();
+}
+
+void matrix_init_custom(void) {
+ debug_enable = true;
+ debug_matrix = true;
+ dprint("matrix_init_custom\n");
+ // initialize row and col
+ init_mcu_pins();
+ mcp23017_status = init_mcp23017();
+
+ // initialize matrix state: all keys off
+ for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
+ matrix[i] = 0;
+ }
+}
+
+// Reads and stores a row, returning
+// whether a change occurred.
+static inline bool store_matrix_row(matrix_row_t current_matrix[], uint8_t index) {
+ matrix_row_t temp = read_cols(index);
+ if (current_matrix[index] != temp) {
+ current_matrix[index] = temp;
+ return true;
+ }
+ return false;
+}
+
+bool matrix_scan_custom(matrix_row_t current_matrix[]) {
+ if (mcp23017_status) { // if there was an error
+ if (++mcp23017_reset_loop == 0) {
+ // if (++mcp23017_reset_loop >= 1300) {
+ // since mcp23017_reset_loop is 8 bit - we'll try to reset once in 255 matrix scans
+ // this will be approx bit more frequent than once per second
+ print("trying to reset mcp23017\n");
+ mcp23017_status = init_mcp23017();
+ if (mcp23017_status) {
+ print("right side not responding\n");
+ } else {
+ print("right side attached\n");
+ }
+ }
+ }
+
+ bool changed = false;
+ for (uint8_t i = 0; i < MATRIX_ROWS_PER_SIDE; i++) {
+ // select rows from left and right hands
+ uint8_t left_index = i;
+ uint8_t right_index = i + MATRIX_ROWS_PER_SIDE;
+
+ changed |= store_matrix_row(current_matrix, left_index);
+ changed |= store_matrix_row(current_matrix, right_index);
+
+ unselect_rows();
+ }
+
+ return changed;
+}
+
+static matrix_row_t read_cols(uint8_t row) {
+ select_row(row);
+ if (row < MATRIX_ROWS_PER_SIDE) {
+ pin_t matrix_col_pins_mcu[MATRIX_COLS_PER_SIDE] = MATRIX_COL_PINS_MCU;
+ matrix_row_t current_row_value = 0;
+ matrix_io_delay();
+ // For each col...
+ for (uint8_t col_index = 0; col_index < MATRIX_COLS_PER_SIDE; col_index++) {
+ // Select the col pin to read (active low)
+ uint8_t pin_state = readPin(matrix_col_pins_mcu[col_index]);
+
+ // Populate the matrix row with the state of the col pin
+ current_row_value |= pin_state ? 0 : (MATRIX_ROW_SHIFTER << col_index);
+ }
+ unselect_row(row);
+ return current_row_value;
+ } else {
+ // we don't need a 30us delay anymore, because selecting a
+ // right-hand row requires more than 30us for i2c.
+ if (mcp23017_status) { // if there was an error
+ return 0;
+ } else {
+ uint8_t buf[] = {MCP23017_GPIOA};
+ mcp23017_status = i2c_transmit(I2C_ADDR_WRITE, buf, sizeof(buf), MCP23017_I2C_TIMEOUT);
+ // We read all the pins on GPIOA.
+ // The initial state was all ones and any depressed key at a given column for the currently selected row will have its bit flipped to zero.
+ // The return value is a row as represented in the generic matrix code were the rightmost bits represent the lower columns and zeroes represent non-depressed keys while ones represent depressed keys.
+ // Since the pins connected to eact columns are sequential, and counting from zero up (col 5 -> GPIOA0, col 6 -> GPIOA1 and so on), the only transformation needed is a bitwise not to swap all zeroes and ones.
+ uint8_t data[] = {0};
+ if (!mcp23017_status) {
+ mcp23017_status = i2c_receive(I2C_ADDR_READ, data, sizeof(data), MCP23017_I2C_TIMEOUT);
+ data[0] = ~(data[0]);
+ }
+ return data[0];
+ }
+ }
+}
+
+static void unselect_row(uint8_t row) {
+ pin_t matrix_row_pins_mcu[MATRIX_ROWS_PER_SIDE] = MATRIX_ROW_PINS_MCU;
+ setPinInputHigh(matrix_row_pins_mcu[row]);
+}
+
+static void unselect_rows(void) {
+ // no need to unselect on mcp23017, because the select step sets all
+ // the other row bits high, and it's not changing to a different
+ // direction
+
+ // unselect rows on microcontroller
+ pin_t matrix_row_pins_mcu[MATRIX_ROWS_PER_SIDE] = MATRIX_ROW_PINS_MCU;
+ for (int pin_index = 0; pin_index < MATRIX_ROWS_PER_SIDE; pin_index++) {
+ pin_t pin = matrix_row_pins_mcu[pin_index];
+ setPinInputHigh(pin);
+ }
+}
+static void unselect_cols(void) {
+ pin_t matrix_col_pins_mcu[MATRIX_COLS_PER_SIDE] = MATRIX_COL_PINS_MCU;
+ for (int pin_index = 0; pin_index < MATRIX_COLS_PER_SIDE; pin_index++) {
+ pin_t pin = matrix_col_pins_mcu[pin_index];
+ setPinInputHigh(pin);
+ }
+}
+
+static void select_row(uint8_t row) {
+ if (row < MATRIX_ROWS_PER_SIDE) {
+ // select on MCU
+ pin_t matrix_row_pins_mcu[MATRIX_ROWS_PER_SIDE] = MATRIX_ROW_PINS_MCU;
+ pin_t pin = matrix_row_pins_mcu[row];
+ setPinOutput(pin);
+ writePinLow(pin);
+ } else {
+ // select on mcp23017
+ if (mcp23017_status) { // if there was an error
+ // do nothing
+ } else {
+ // Select the desired row by writing a byte for the entire GPIOB bus where only the bit representing the row we want to select is a zero (write instruction) and every other bit is a one.
+ // Note that the row - MATRIX_ROWS_PER_SIDE reflects the fact that being on the right hand, the columns are numbered from MATRIX_ROWS_PER_SIDE to MATRIX_ROWS, but the pins we want to write to are indexed from zero up on the GPIOB bus.
+ uint8_t buf[] = {MCP23017_GPIOB, 0xFF & ~(1 << (row - MATRIX_ROWS_PER_SIDE))};
+ mcp23017_status = i2c_transmit(I2C_ADDR_WRITE, buf, sizeof(buf), I2C_TIMEOUT);
+ }
+ }
+}
A keyboards/ferris/0_2/mcuconf.h => keyboards/ferris/0_2/mcuconf.h +36 -0
@@ 0,0 1,36 @@
+/* Copyright 2020 QMK
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/*
+ * This file was auto-generated by:
+ * `qmk chibios-confmigrate -i keyboards/ferris/0_2/mcuconf.h -r platforms/chibios/GENERIC_STM32_F072XB/configs/mcuconf.h`
+ */
+
+#pragma once
+
+#include_next <mcuconf.h>
+
+#undef STM32_I2C_USE_I2C2
+#define STM32_I2C_USE_I2C2 TRUE
+
+#undef STM32_I2C_USE_DMA
+#define STM32_I2C_USE_DMA FALSE
+
+#undef STM32_PWM_USE_TIM3
+#define STM32_PWM_USE_TIM3 TRUE
+
+#undef STM32_SPI_USE_SPI2
+#define STM32_SPI_USE_SPI2 TRUE
A keyboards/ferris/0_2/readme.md => keyboards/ferris/0_2/readme.md +17 -0
@@ 0,0 1,17 @@
+# Ferris 0.2
+
+
+
+
+An stm32f072 based split 34 keys column staggered keyboard named and decorated after the rustlang mascott. All PCB files and some thoughts on the design are available on the [project's github page](https://github.com/pierrechevalier83/ferris)
+
+* Keyboard Maintainer: [Pierre Chevalier](https://github.com/pierrechevalier83)
+* Hardware Supported:
+ * Ferris 0.2: stm32f072 chip. Comes in 4 variants: bling, mini, high and compact
+* Hardware Availability: Pierre Chevalier has been selling keyboard kits (see the #ferris channel in the 40% discord chat). Wider availability is on the horizon.
+
+Make examples for this keyboard (after setting up your build environment):
+
+ make ferris/0_2:default
+
+See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).
A keyboards/ferris/0_2/rules.mk => keyboards/ferris/0_2/rules.mk +25 -0
@@ 0,0 1,25 @@
+# MCU name
+MCU = STM32F072
+
+# change yes to no to disable
+#
+BOOTMAGIC_ENABLE = lite # Virtual DIP switch configuration
+MOUSEKEY_ENABLE = yes # Mouse keys
+EXTRAKEY_ENABLE = yes # Audio control and System control
+CONSOLE_ENABLE = no # Console for debug
+COMMAND_ENABLE = no # Commands for debug and configuration
+# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
+SLEEP_LED_ENABLE = no # Breathing sleep LED during USB suspend
+# if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
+NKRO_ENABLE = no # USB Nkey Rollover
+BACKLIGHT_ENABLE = no # Enable keyboard backlight functionality
+RGBLIGHT_ENABLE = no # Enable keyboard RGB underglow
+BLUETOOTH_ENABLE = no # Enable Bluetooth
+AUDIO_ENABLE = no # Audio output
+UNICODE_ENABLE = yes
+CUSTOM_MATRIX = lite
+NO_USB_STARTUP_CHECK = yes
+LTO_ENABLE = no
+
+SRC += matrix.c
+QUANTUM_LIB_SRC += i2c_master.c
A keyboards/ferris/keymaps/test/config.h => keyboards/ferris/keymaps/test/config.h +20 -0
@@ 0,0 1,20 @@
+/*
+Copyright 2021 Pierre Chevalier <pierrechevalier83@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#pragma once
+
+#define DEBUG_MATRIX_SCAN_RATE
A keyboards/ferris/keymaps/test/keymap.c => keyboards/ferris/keymaps/test/keymap.c +13 -0
@@ 0,0 1,13 @@
+#include QMK_KEYBOARD_H
+
+void matrix_init_user(void) {
+ debug_enable=true;
+ debug_matrix=true;
+ //debug_keyboard=true;
+ //debug_mouse=true;
+}
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+ [0] = LAYOUT(KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_P0, DEBUG, KC_P2, KC_P3)
+};
+
A keyboards/ferris/keymaps/test/readme.md => keyboards/ferris/keymaps/test/readme.md +5 -0
@@ 0,0 1,5 @@
+# A test keymap for the Ferris keyboard
+
+This keymap is not intended to be used to use the Ferris as a usable keyboard, but rather it is meant to be a very simple keymap used to test the hardware works properly. It can also be used to test firmware being written for new versions with a minimum amount of complexity coming from the keymap itself.
+
+The keymap is composed of a single qwerty layer with a unique digit bound to each non-alpha key.
A keyboards/ferris/keymaps/test/rules.mk => keyboards/ferris/keymaps/test/rules.mk +1 -0
@@ 0,0 1,1 @@
+CONSOLE_ENABLE = yes
M keyboards/ferris/readme.md => keyboards/ferris/readme.md +3 -2
@@ 1,19 1,20 @@
# Ferris
-
-
+
A split 34 keys column staggered keyboard named and decorated after the rustlang mascott. All PCB files and some thoughts on the design are available on the [project's github page](https://github.com/pierrechevalier83/ferris)
* Keyboard Maintainer: [Pierre Chevalier](https://github.com/pierrechevalier83)
* Hardware Supported:
* Ferris 0.1 (With atmega32u4 chip. Comes in 4 variants: base, low, high and compact)
+ * Ferris 0.2 (With stm32f072 chip. Comes in 4 variants: bling, mini, high and compact)
* Ferris sweep (With pro-micro. Comes in a couple of PCB edge cuts shapes, but with identical pinout)
* Hardware Availability: Pierre Chevalier has been selling keyboard kits (see the #ferris channel in the 40% discord chat). Wider availability is on the horizon.
Make examples for this keyboard (after setting up your build environment):
make ferris/0_1:default
+ make ferris/0_2:default
make ferris/sweep:default:avrdude-split-right
See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).
A keyboards/ferris/sweep/readme.md => keyboards/ferris/sweep/readme.md +18 -0
@@ 0,0 1,18 @@
+# Ferris sweep
+
+
+
+
+A version of the Ferris keyboard that uses a daughterboard, designed by the fantastic @davidphilipbarr with some input from @pierrechevalier83 for the copper pad. All PCB files are available on the [project's github page](https://github.com/davidphilipbarr/Sweep)
+
+* Keyboard Maintainer: [Pierre Chevalier](https://github.com/pierrechevalier83)
+* Hardware Supported:
+ * Ferris sweep (With pro-micro. Comes in a couple of PCB edge cuts shapes, but with identical pinout)
+* Hardware Availability: @iamnotyourbroom in the 40% discord chat server may have some spares for you.
+
+Make examples for this keyboard (after setting up your build environment):
+
+ make ferris/sweep:default:avrdude-split-left
+ make ferris/sweep:default:avrdude-split-right
+
+See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).