main: rotor: erase immediately after send
- improves trace diagnostic output by moving cursor back over the
the rotor before a diagnostic message has a chance to be printed.
there is still a race condition, but it is much better.
Change-Id: Iad7767f2a5dbbd67b0f33b9bfc2c3864ce308990
diff --git a/firmware/apps/cardem/main.c b/firmware/apps/cardem/main.c
index 4c337c8..6372e04 100644
--- a/firmware/apps/cardem/main.c
+++ b/firmware/apps/cardem/main.c
@@ -194,8 +194,8 @@
WDT_Restart(WDT);
#if TRACE_LEVEL >= TRACE_LEVEL_DEBUG
const char rotor[] = { '-', '\\', '|', '/' };
- putchar('\b');
putchar(rotor[i++ % ARRAY_SIZE(rotor)]);
+ putchar('\b');
#endif
check_exec_dbg_cmd();
osmo_timers_prepare();