diff --git a/build/tests/dsp/dsp-jtag/ARM9/src/main.c b/build/tests/dsp/dsp-jtag/ARM9/src/main.c
index 934e572..26f2536 100644
--- a/build/tests/dsp/dsp-jtag/ARM9/src/main.c
+++ b/build/tests/dsp/dsp-jtag/ARM9/src/main.c
@@ -59,11 +59,14 @@ void TwlMain()
     OS_TPrintf("    X: DSP_ResetInterface\n");
     OS_TPrintf("===================================\n");
 
-#if 0
     // DSP初期コード(JTAG接続待ち)の書き込み
-    /* DSP_Iの先頭4Bを 0x5e47, 0x0000 (br ##0, ture)  にするとか？ */
-    /* brr でも良いのか？ */
-#endif
+    reg_MI_WRAM_B0 = WRAM_BNK_PACK(MI_WRAM_B_ARM9, MI_WRAM_B_OFS_0KB,   TRUE);
+    {
+        vu16* addr = (vu16*)(0x03000000 + (((reg_MI_WRAM_B_MAP & REG_MI_WRAM_B_MAP_START_MASK) >> REG_MI_WRAM_B_MAP_START_SHIFT) << 15));
+        // br ##0000, true
+        *(addr+0) = 0x4180;
+        *(addr+1) = 0x0000;
+    }
 
     // WRAMメモリマップ変更
     {