Fix ringbuffer in serial connection between Mainboard and Touchscreen.

2020-06-02 19:18:23 +02:00
parent 3591d3f7fa
commit 612108066d
1 changed files with 1 additions and 1 deletions
--- a/Marlin/src/lcd/anycubic_serial.cpp
+++ b/Marlin/src/lcd/anycubic_serial.cpp
@@ -66,7 +66,7 @@ ring_buffer tx_buffer_ajg = {{0}, 0, 0};

 inline void store_char(unsigned char c, ring_buffer *buffer)
 {
-  int i = (unsigned int)(buffer->head + 1) % SERIAL_BUFFER_SIZE;
+  unsigned int i = ((unsigned int)(buffer->head + 1)) % SERIAL_BUFFER_SIZE;

  // if we should be storing the received character into the location
  // just before the tail (meaning that the head would advance to the