Merge pull request #623 from richardg867/master

Only update POST card if the POST code has actually changed
2020-03-25 00:14:14 +01:00
parent dbd49625e1 fa41a91f38
commit b7298619e2
1 changed files with 3 additions and 0 deletions
--- a/src/postcard.c
+++ b/src/postcard.c
@@ -95,6 +95,9 @@ postcard_reset(void)
 static void
 postcard_write(uint16_t port, uint8_t val, void *priv)
 {
+    if (postcard_written && val == postcard_code)
+    	return;
+
    postcard_prev_code = postcard_code;
    postcard_code = val;
    if (postcard_written < 2)