add printf macro util.h

1 files changed, 15 insertions, 0 deletions

diff --git a/stm32f091/util.h b/stm32f091/util.h
new file mode 100644
index 0000000..8e3258f
--- /dev/null
+++ b/stm32f091/util.h
@@ -0,0 +1,15 @@
+#pragma once
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <stm32f0xx_hal.h>
+#include <string.h>
+
+#include "setup.h"
+
+#define ws_usb_printf(fmt, ...) { \
+	char temp[255]; \
+	sprintf(temp, fmt, ##__VA_ARGS__); \
+	HAL_UART_Transmit(&huart2, (uint8_t*) temp, sizeof(char) * strlen(temp), HAL_MAX_DELAY); \
+}
+