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Fixed ghosting matrix check (did send bad keys on release), now using also ghost_old state

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This commit is contained in:
CryHam 2016-05-08 09:31:48 +02:00
parent ba58010a75
commit e6506ee5bf
1 changed files with 11 additions and 7 deletions
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18
Scan/MatrixARM/matrix_scan.c
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@ -80,6 +80,7 @@ KeyGhost Matrix_ghostArray[ Matrix_colsNum * Matrix_rowsNum ];
uint8_t col_use[Matrix_colsNum], row_use[Matrix_rowsNum]; // used count
uint8_t col_ghost[Matrix_colsNum], row_ghost[Matrix_rowsNum]; // marked as having ghost if 1
uint8_t col_ghost_old[Matrix_colsNum], row_ghost_old[Matrix_rowsNum]; // old ghost state
#endif
@ -211,12 +212,18 @@ void Matrix_setup()
for ( uint8_t pin = 0; pin < Matrix_colsNum; pin++ )
{
Matrix_pin( Matrix_cols[ pin ], Type_StrobeSetup );
col_use[pin] = 0;
col_ghost[pin] = 0;
col_ghost_old[pin] = 0;
}
// Setup Sense Pins
for ( uint8_t pin = 0; pin < Matrix_rowsNum; pin++ )
{
Matrix_pin( Matrix_rows[ pin ], Type_SenseSetup );
row_use[pin] = 0;
row_ghost[pin] = 0;
row_ghost_old[pin] = 0;
}
// Clear out Debounce Array
@ -448,7 +455,6 @@ void Matrix_scan( uint16_t scanNum )
// strobe = column, sense = row
// Count (rows) use for columns
//print("C ");
for ( uint8_t col = 0; col < Matrix_colsNum; col++ )
{
uint8_t used = 0;
@ -459,13 +465,12 @@ void Matrix_scan( uint16_t scanNum )
if ( keyOn(state->curState) )
used++;
}
//printInt8(used);
col_use[col] = used;
col_ghost_old[col] = col_ghost[col];
col_ghost[col] = 0; // clear
}
// Count (columns) use for rows
//print(" R ");
for ( uint8_t row = 0; row < Matrix_rowsNum; row++ )
{
uint8_t used = 0;
@ -476,14 +481,13 @@ void Matrix_scan( uint16_t scanNum )
if ( keyOn(state->curState) )
used++;
}
//printInt8(used);
row_use[row] = used;
row_ghost_old[row] = row_ghost[row];
row_ghost[row] = 0; // clear
}
// Check if matrix has ghost
// Happens when key is pressed and some other key is pressed in same row and another in same column
//print(" G ");
for ( uint8_t col = 0; col < Matrix_colsNum; col++ )
{
for ( uint8_t row = 0; row < Matrix_rowsNum; row++ )
@ -495,11 +499,9 @@ void Matrix_scan( uint16_t scanNum )
// mark col and row as having ghost
col_ghost[col] = 1;
row_ghost[row] = 1;
//print(" "); printInt8(col); print(","); printInt8(row);
}
}
}
//print( NL );
// Send keys
for ( uint8_t col = 0; col < Matrix_colsNum; col++ )
@ -512,6 +514,8 @@ void Matrix_scan( uint16_t scanNum )
// col or row is ghosting (crossed)
uint8_t ghost = (col_ghost[col] > 0 || row_ghost[row] > 0) ? 1 : 0;
uint8_t ghost_old = (col_ghost_old[col] > 0 || row_ghost_old[row] > 0) ? 1 : 0;
ghost = ghost || ghost_old ? 1 : 0;
st->prev = st->cur; // previous
// save state if no ghost or outside ghosted area