diff options
Diffstat (limited to 'keyboards/3w6/rev2')
| -rw-r--r-- | keyboards/3w6/rev2/matrix.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/keyboards/3w6/rev2/matrix.c b/keyboards/3w6/rev2/matrix.c index 0fc0322b6e..c47c24e1dc 100644 --- a/keyboards/3w6/rev2/matrix.c +++ b/keyboards/3w6/rev2/matrix.c @@ -34,7 +34,7 @@ extern i2c_status_t tca9555_status; // All address pins of the tca9555 are connected to the ground // | 0 | 1 | 0 | 0 | A2 | A1 | A0 | // | 0 | 1 | 0 | 0 | 0 | 0 | 0 | -#define I2C_ADDR 0b0100000 +#define I2C_ADDR (0b0100000 << 1) // Register addresses #define IODIRA 0x06 // i/o direction register @@ -192,6 +192,7 @@ static matrix_row_t read_cols(uint8_t row) { // do nothing return 0; } else { + port0 = ~port0; // 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. @@ -247,7 +248,7 @@ static void select_row(uint8_t row) { default: break; } - tca9555_status = i2c_writeReg(I2C_ADDR, OREGP1, &port1, 2, I2C_TIMEOUT); + tca9555_status = i2c_writeReg(I2C_ADDR, OREGP1, &port1, 1, I2C_TIMEOUT); // 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. } |