diff --git a/parse/sdio/cmd52.c b/parse/sdio/cmd52.c
new file mode 100644
index 0000000..5fdd5b5
--- /dev/null
+++ b/parse/sdio/cmd52.c
@@ -0,0 +1,33 @@
+#include "stdio.h"
+#include "stdlib.h"
+#include "stdint.h"
+
+void main(int argc, char *argv[])
+{
+    uint32_t cmd, resp;
+    uint32_t addr, data;
+
+    while (1) {
+        printf("Please input cmd52 and response\r\n");
+        scanf("%x %x", &cmd, &resp);
+        printf("your input is cmd52:0x%08lX, resp:0x%08lX\r\n", cmd, resp);
+        /* parse cmd52 */
+        addr = (cmd >> 9) & 0x1FFFF;
+        data = (cmd >> 0) & 0xFF;
+        if (cmd & (1 << 31)) {
+            printf("write 0x%02X to 0x%06X. ", data, addr);
+            if (cmd & (1 << 27)) {
+                printf("with read. ");
+            } else {
+                printf("without read. ");
+            }
+        } else {
+            printf("read data from 0x%06X. ", addr);
+        }
+        printf("func=%d\r\n", (cmd >> 28) & 0x7);
+        /* parse response */
+        addr = (resp >> 8) & 0xFF;
+        data = (resp >> 0) & 0xFF;
+        printf("return data is 0x%02lX, status=0x%02lX\r\n\r\n", data, addr);
+    }
+}