diff --git a/sdk/software/examples/asm/user-sample.c b/sdk/software/examples/asm/user-sample.c
index 7f98fd8..b9096e8 100644
--- a/sdk/software/examples/asm/user-sample.c
+++ b/sdk/software/examples/asm/user-sample.c
@@ -94,7 +94,6 @@ int main(void)
     ch0->SRC_ADDR = EXTRAM_PHYS_AB(0);
     ch0->DST_ADDR = phys_bank_AB[0];
     ch0->LENGTH   = 128;
-    ch0->TAG      = 10;
     ch0->CTRL     = DMA_CTRL_VAL;
     while (!(ch0->STATUS & STATUS_DONE_BIT)) {}
     ch0->STATUS   = STATUS_DONE_BIT;
@@ -107,7 +106,6 @@ int main(void)
         ch0->SRC_ADDR = EXTRAM_PHYS_AB(1);
         ch0->DST_ADDR = phys_bank_AB[1];
         ch0->LENGTH   = 128;
-        ch0->TAG      = 10;
         ch0->CTRL     = DMA_CTRL_VAL;
     }
 
@@ -143,7 +141,6 @@ int main(void)
         ch1->SRC_ADDR = phys_bank_C[prev_bank];
         ch1->DST_ADDR = EXTRAM_PHYS_C(g - 1);
         ch1->LENGTH   = 192;
-        ch1->TAG      = 20;
         ch1->CTRL     = DMA_CTRL_VAL;
 
         // 4. Wait for current DMA Ch0 load (group g → cur_bank, pre-fired in iteration g-1)
@@ -160,7 +157,6 @@ int main(void)
             ch0->SRC_ADDR = EXTRAM_PHYS_AB(g + 1);
             ch0->DST_ADDR = phys_bank_AB[next_bank];
             ch0->LENGTH   = 128;
-            ch0->TAG      = 10;
             ch0->CTRL     = DMA_CTRL_VAL;
         }
 
@@ -183,7 +179,6 @@ int main(void)
     ch1->SRC_ADDR = phys_bank_C[(MATMUL_GROUP_NUM - 1) % 2];
     ch1->DST_ADDR = EXTRAM_PHYS_C(MATMUL_GROUP_NUM - 1);
     ch1->LENGTH   = 192;
-    ch1->TAG      = 20;
     ch1->CTRL     = DMA_CTRL_VAL;
     while (!(ch1->STATUS & STATUS_DONE_BIT)) {}
     ch1->STATUS = STATUS_DONE_BIT;