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-rw-r--r--board/trab/vfd.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/board/trab/vfd.c b/board/trab/vfd.c
index d0dcedc..e00294f 100644
--- a/board/trab/vfd.c
+++ b/board/trab/vfd.c
@@ -346,9 +346,10 @@ void transfer_pic(int display, unsigned char *adr, int height, int width)
}
}
}
- display++;
- if (display > 3)
- display = 0;
+ if (display > 0)
+ display--;
+ else
+ display = 3;
}
}