diff --git a/src/main/scala/backBoard/pico/BackSystem.scala b/src/main/scala/backBoard/pico/BackSystem.scala
index 3c34ab3..ba169e9 100644
--- a/src/main/scala/backBoard/pico/BackSystem.scala
+++ b/src/main/scala/backBoard/pico/BackSystem.scala
@@ -155,8 +155,8 @@ class BackSysImp(outer: BackSys) extends LazyModuleImp(outer) with HasBackParame
 
 
   sram.io.mem.valid := pico.io.mem.valid & pico.io.mem.addr.extract(31) === "b1".U
-  cdr.io.mem.valid  := pico.io.mem.valid & pico.io.mem.addr.extract(31) =/= "b1".U & pico.io.mem.addr.extract(11) === "b0".U & ~pico.io.mem.instr
-  gpio.io.mem.valid := pico.io.mem.valid & pico.io.mem.addr.extract(31) =/= "b1".U & pico.io.mem.addr.extract(11) === "b1".U & ~pico.io.mem.instr
+  cdr.io.mem.valid  := pico.io.mem.valid & pico.io.mem.addr.extract(31) =/= "b1".U & pico.io.mem.addr.extract(10) === "b0".U & ~pico.io.mem.instr
+  gpio.io.mem.valid := pico.io.mem.valid & pico.io.mem.addr.extract(31) =/= "b1".U & pico.io.mem.addr.extract(10) === "b1".U & ~pico.io.mem.instr
 
   pico.io.mem.ready := 
     Mux( pico.io.mem.instr | pico.io.mem.addr.extract(31) === "b1".U, sram.io.mem.ready, 
diff --git a/tb/sw/src/SlvMain.c b/tb/sw/src/SlvMain.c
index 3938fad..b112b52 100644
--- a/tb/sw/src/SlvMain.c
+++ b/tb/sw/src/SlvMain.c
@@ -64,7 +64,7 @@ void main()
 		readDat = *cdr_rxFifo;
 
 		if( operator == 0 ){
-			slvNum = 64 - ( downRecvLen >> 3 );
+			
 
 			uint32_t localLen = 8;
 			uint32_t downSendLen = downRecvLen - 8;
@@ -79,6 +79,8 @@ void main()
 				readDat = *cdr_rxFifo;
 			}
 
+			
+			
 			if(!isLast){
 				// 下行转发新建包头
 				*cdr_txLen = downRecvLen; //downSendLen + 8
@@ -91,8 +93,8 @@ void main()
 						"andi ra, sp, 0x08\n"
 						"1:\n"
 						"bnez ra, 1b\n" //error 速度不够，不再检查接收
-						"lw t1, 0x01c(x0)\n"
-						"sw t1, 0x008(x0)\n"
+						"lw t2, 0x01c(x0)\n"
+						"sw t2, 0x008(x0)\n"
 					);
 					//*cdr_0_tx_txFifo = *cdr_0_rx_rxFifo; //接收即发送			
 				}
@@ -105,7 +107,7 @@ void main()
 						"1:\n"
 						"bnez ra, 1b\n" //error 速度不够，不再检查接收
 						// "lui t0, %hi(0x40000000)\n"
-						"lw t1, 0x01c(x0)\n"
+						"lw t2, 0x01c(x0)\n"
 					);		
 				}
 			}
@@ -202,8 +204,8 @@ void main()
 						"andi ra, sp, 0x80\n"
 						"1:\n"
 						"bnez ra, 1b\n" //error 速度不够，不再检查接收
-						"lw t1, 0x01c(x0)\n"
-						"sw t1, 0x008(x0)\n"
+						"lw t2, 0x01c(x0)\n"
+						"sw t2, 0x008(x0)\n"
 					);
 
 					// *cdr_1_tx_txFifo = *cdr_1_rx_rxFifo; //接收即发送
@@ -239,15 +241,16 @@ void main()
 
 			}
 
-				//等待发送完成标志
-				asm volatile (
-					"1:\n"
-					"andi ra, sp, 0x01\n"
-					"beqz ra, 1b\n"
-					"andi sp, sp, 0xFE\n"
-				);
-
+			//等待发送完成标志
+			asm volatile (
+				"1:\n"
+				"andi ra, sp, 0x01\n"
+				"beqz ra, 1b\n"
+				"andi sp, sp, 0xFE\n"
+			);
 
+			slvNum = 64 - ( downRecvLen >> 3 );
+			*WriteGpio = 1 << slvNum;
 
 		} else if ( operator == 1 ){
 			error();