fix stray I2C register write bug #798

MEGA65 · Apr 6, 2024 · f1a836d · f1a836d
1 parent 77947f4
commit f1a836d
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/src/vhdl/keypad_i2c.vhdl b/src/vhdl/keypad_i2c.vhdl
@@ -717,6 +717,10 @@ begin
           command_en <= '1';
           i2c1_rw <= '0';
           i2c1_wdata <= write_val;
+        when max_state+3 =>
+          -- Dummy state so that STOP gets emmitted after writing the single byte.
+          -- This fixes stray writes to adjacent registers.
+          null;
         when others =>
           if last_busy_count /= busy_count then
             report "in others";