FIX: incorrect test for "no key pressed".

diff --git a/ROM2/keypad.c b/ROM2/keypad.c
index 4105b24..23eddb8 100644 (file)
--- a/ROM2/keypad.c
+++ b/ROM2/keypad.c
@@ -10,6 +10,8 @@ bool new_key = 0;
 const u8 keymap0[8] = {KEY_8, KEY_7, KEY_6, KEY_5, KEY_4, KEY_3, KEY_2, KEY_1};
 const u8 keymap1[3] = {KEY_RESET, KEY_0, KEY_9};
 
+#define        NO_KEY  8
+
 extern inline u8 keypad_read_row(u8 row) {
        u8 i, num;
        if (row)
@@ -34,7 +36,7 @@ void keypad_read() {
        /* FIXME: need to do debouncing of some sort? */
        u8 key;
        key = keypad_read_row(0);
-       if (!key) {
+       if (NO_KEY == key) {
                key = keypad_read_row(1);
                key = keymap1[key];
        } else