改为 在压缩前添加 oem_ext 但固件启动不起来

inc/driver/iot_mtd.h

@@ -17,6 +17,7 @@ Information is free from patent or copyright infringement.
 
 #include "iot_flash_api.h"
 #include "iot_flash_layout.h"
+#include "iot_img_hdr.h"
 
 #ifdef __cplusplus
 extern "C" {
@@ -244,6 +245,14 @@ int32_t iot_log_save_done(uint8_t lock);
  */
 uint32_t mtd_copy_part(uint8_t src_part, uint8_t dest_part);
 
+/**
+ * @brief mtd_get_hdr(): get firmware header information of specified partition.
+ * @param part_num: the specified partition.
+ * @param hdr: pointer to save header information.
+ * @return ERR_FAIL: failed; ERR_OK: succeed.
+ */
+uint32_t mtd_get_hdr(uint8_t part_num, imgHdr *hdr);
+
 /**
  * @brief mtd_get_hdr_img_size(uint8_t part) - get img size in hdr
  * @param part:  part number in flash block.