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-rw-r--r--py/mpconfig.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/py/mpconfig.h b/py/mpconfig.h
index ad2fe3ee56..acee5ee951 100644
--- a/py/mpconfig.h
+++ b/py/mpconfig.h
@@ -806,7 +806,7 @@ typedef double mp_float_t;
// This macro is used to do all output (except when MICROPY_PY_IO is defined)
#ifndef MP_PLAT_PRINT_STRN
-#define MP_PLAT_PRINT_STRN(str, len) printf("%.*s", (int)len, str)
+#define MP_PLAT_PRINT_STRN(str, len) mp_hal_stdout_tx_strn_cooked(str, len)
#endif
#ifndef MP_SSIZE_MAX