melissa/zsa_qmk_firmware
1
0
Fork 0
mirror of https://github.com/zsa/qmk_firmware.git synced 2026-01-09 15:12:33 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

hf: tentative soft reset fix for transient noise on the i2c bus

Browse Source
This commit is contained in:
Florian Didron
2025-05-12 15:35:59 +07:00
parent 873247739e
commit 412e87c216
1 changed files with 11 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
keyboards/zsa/moonlander/matrix.c
View File

@@ -16,6 +16,7 @@
* along with this program. If not, see <http://www.gnu.org/licenses/>. * along with this program. If not, see <http://www.gnu.org/licenses/>.
*/ */
#include "i2c_master.h"
#include "moonlander.h" #include "moonlander.h"
#include "mcp23018.h" #include "mcp23018.h"
@@ -80,8 +81,16 @@ bool matrix_scan_custom(matrix_row_t current_matrix[]) {
if (++mcp23018_reset_loop > 0x1FFF) { if (++mcp23018_reset_loop > 0x1FFF) {
if (io_expander_ready()) { if (io_expander_ready()) {
// If we managed to initialize the mcp23018 - we need to reinitialize the matrix / layer state. During an electric discharge the i2c peripherals might be in a weird state. Giving a delay and resetting the MCU allows to recover from this. // If we managed to initialize the mcp23018 - we need to reinitialize the matrix / layer state. During an electric discharge the i2c peripherals might be in a weird state. Giving a delay and resetting the MCU allows to recover from this.
wait_ms(200); // wait_ms(200);
mcu_reset(); // mcu_reset();
// WIP: reinit the io expander and led driver
i2c_init();
mcp23018_init(MCP23018_DEFAULT_ADDRESS);
#ifdef RGB_MATRIX_ENABLE
rgb_matrix_init();
#endif
mcp23018_errors = 0;
mcp23018_reset_loop = 0;
} }
} }
} }