test snake

1 files changed, 2 insertions, 2 deletions

diff --git a/fw/snake.c b/fw/snake.c
index 87989ab..48ee417 100644
--- a/fw/snake.c
+++ b/fw/snake.c
@@ -43,7 +43,7 @@ static void uart_puts(const char *s) {
 }
 
 static uint8_t uart_recv(void) {
-    if (UART_STATUS & 0x02)
+    if (UART_STATUS & 0x02) // empty
         return 0;
     return UART_RX;
 }
@@ -53,7 +53,7 @@ static uint8_t uart_recv(void) {
  * Never blocks, so a stray ESC can't freeze the game. */
 static void handle_input(void) {
     uint8_t c;
-    while (1) {
+    for (int i = 0; i < 5; i++) {
         c = uart_recv();
         if (c == 0) return;
         switch (input_state) {