skidbuffer + lfsr finally working in the fpga

build.sh

@@ -3,7 +3,7 @@
 export VIVADO=/home/lsa/xilinx/2018.2/Vivado/2018.2/bin/vivado
 export VIVADO_DESIGN_NAME=skid_testing
 export VIVADO_TOP_NAME=${VIVADO_DESIGN_NAME}_wrapper
-export XIL_APP_NAME=dma_test
+export XIL_APP_NAME=dma_int_test
 
 if [ -f $VIVADO ]; then
   echo "###################################"

hw/bd/design_1.tcl

@@ -44,7 +44,7 @@ set bCheckIPsPassed 1
 set bCheckIPs 1
 if { $bCheckIPs == 1 } {
    set list_check_ips "\ 
-user.org:user:skidbuffer:1.0\
+user.org:user:skidbuffer_lfsr:1.0\
 xilinx.com:ip:system_ila:1.1\
 xilinx.com:ip:axi_dma:7.1\
 xilinx.com:ip:smartconnect:1.0\
@@ -1010,16 +1010,13 @@ proc create_root_design { parentCell } {
 
   # Create ports
 
-  # Create instance: skidbuffer_0, and set properties
-  set skidbuffer_0 [ create_bd_cell -type ip -vlnv user.org:user:skidbuffer:1.0 skidbuffer_0 ]
-  set_property -dict [ list \
-   CONFIG.DW {32} \
- ] $skidbuffer_0
+  # Create instance: skidbuffer_lfsr_0, and set properties
+  set skidbuffer_lfsr_0 [ create_bd_cell -type ip -vlnv user.org:user:skidbuffer_lfsr:1.0 skidbuffer_lfsr_0 ]
 
   # Create instance: system_ila_0, and set properties
   set system_ila_0 [ create_bd_cell -type ip -vlnv xilinx.com:ip:system_ila:1.1 system_ila_0 ]
   set_property -dict [ list \
-   CONFIG.C_BRAM_CNT {1} \
+   CONFIG.C_BRAM_CNT {6} \
    CONFIG.C_MON_TYPE {MIX} \
    CONFIG.C_NUM_MONITOR_SLOTS {2} \
    CONFIG.C_PROBE0_WIDTH {2} \
@@ -1038,23 +1035,20 @@ proc create_root_design { parentCell } {
   create_hier_cell_zynq [current_bd_instance .] zynq
 
   # Create interface connections
-  connect_bd_intf_net -intf_net skidbuffer_0_m [get_bd_intf_pins skidbuffer_0/m] [get_bd_intf_pins zynq/S_AXIS_DMA]
-connect_bd_intf_net -intf_net [get_bd_intf_nets skidbuffer_0_m] [get_bd_intf_pins system_ila_0/SLOT_1_AXIS] [get_bd_intf_pins zynq/S_AXIS_DMA]
-  set_property -dict [ list \
-HDL_ATTRIBUTE.DEBUG {true} \
- ] [get_bd_intf_nets skidbuffer_0_m]
+  connect_bd_intf_net -intf_net S_AXIS_DMA_1 [get_bd_intf_pins skidbuffer_lfsr_0/m] [get_bd_intf_pins zynq/S_AXIS_DMA]
+connect_bd_intf_net -intf_net [get_bd_intf_nets S_AXIS_DMA_1] [get_bd_intf_pins system_ila_0/SLOT_1_AXIS] [get_bd_intf_pins zynq/S_AXIS_DMA]
   connect_bd_intf_net -intf_net zynq_DDR [get_bd_intf_ports DDR] [get_bd_intf_pins zynq/DDR]
   connect_bd_intf_net -intf_net zynq_FIXED_IO [get_bd_intf_ports FIXED_IO] [get_bd_intf_pins zynq/FIXED_IO]
-  connect_bd_intf_net -intf_net zynq_M_AXIS_DMA [get_bd_intf_pins skidbuffer_0/s] [get_bd_intf_pins zynq/M_AXIS_DMA]
+  connect_bd_intf_net -intf_net zynq_M_AXIS_DMA [get_bd_intf_pins skidbuffer_lfsr_0/s] [get_bd_intf_pins zynq/M_AXIS_DMA]
 connect_bd_intf_net -intf_net [get_bd_intf_nets zynq_M_AXIS_DMA] [get_bd_intf_pins system_ila_0/SLOT_0_AXIS] [get_bd_intf_pins zynq/M_AXIS_DMA]
   set_property -dict [ list \
 HDL_ATTRIBUTE.DEBUG {true} \
  ] [get_bd_intf_nets zynq_M_AXIS_DMA]
 
   # Create port connections
-  connect_bd_net -net zynq_clock [get_bd_pins skidbuffer_0/clock] [get_bd_pins system_ila_0/clk] [get_bd_pins zynq/clock]
+  connect_bd_net -net zynq_clock [get_bd_pins skidbuffer_lfsr_0/clock] [get_bd_pins system_ila_0/clk] [get_bd_pins zynq/clock]
   connect_bd_net -net zynq_irq [get_bd_pins system_ila_0/probe0] [get_bd_pins zynq/irq]
-  connect_bd_net -net zynq_reset_n [get_bd_pins skidbuffer_0/reset_n] [get_bd_pins system_ila_0/resetn] [get_bd_pins zynq/reset_n]
+  connect_bd_net -net zynq_reset_n [get_bd_pins skidbuffer_lfsr_0/reset_n] [get_bd_pins system_ila_0/resetn] [get_bd_pins zynq/reset_n]
 
   # Create address segments
   create_bd_addr_seg -range 0x20000000 -offset 0x00000000 [get_bd_addr_spaces zynq/axi_dma_0/Data_MM2S] [get_bd_addr_segs zynq/processing_system7_0/S_AXI_HP0/HP0_DDR_LOWOCM] SEG_processing_system7_0_HP0_DDR_LOWOCM

src/dma_int_test/dma_int_test.c

@@ -11,8 +11,8 @@
 
 //#include "platform.h"
 
-// Hermes packet size, including the flits for header and size
-#define PACKET_SIZE 6
+// the size of the data burst
+#define PACKET_SIZE 400
 
 // PS is receiving from the device
 #define RX_INTR_ID		XPAR_FABRIC_ZYNQ_AXI_DMA_0_MM2S_INTROUT_INTR
@@ -27,10 +27,8 @@ XScuGic IntcInstance;
 XAxiDma myDma;
 
 // data buffers
-//u32 hermes_pkg[] = {0x00000101,0x0002,0x0001,0x0002};
-u32 hermes_pkg[] = {0x00000001, 0x00000004, 0x00000000, 0x44444444, 0x55555555, 0x66666666};
-
-u32 hermes_pkg_in[10] = {0};
+u32 hermes_pkg[PACKET_SIZE];
+u32 hermes_pkg_in[PACKET_SIZE];
 
 // Flags interrupt handlers use to notify the application context the events.
 volatile int TxDone;
@@ -102,16 +100,12 @@ int main(){
 	XAxiDma_IntrEnable(&myDma, XAXIDMA_IRQ_IOC_MASK, XAXIDMA_DEVICE_TO_DMA);
 
 	// =======================================
-	// Running DMA self test
+	// fill vector with data
 	// =======================================
-	/*
-	status = XAxiDma_Selftest(&myDma);
-	if (status != XST_SUCCESS) {
-		xil_printf("Self-test failed !\r\n");
-		return XST_FAILURE;
+	for (int i = 0; i < PACKET_SIZE;i++){
+		hermes_pkg[i] = i;
 	}
-	xil_printf("Self-test passed !!!\r\n");
-	 */
+
 	// =======================================
 	// Send data
 	// =======================================
@@ -151,7 +145,7 @@ int main(){
 
 	xil_printf("Checking data ... ");
 	Xil_DCacheInvalidateRange((UINTPTR)hermes_pkg_in, PACKET_SIZE*sizeof(int));
-
+	/*
 	if (memcmp(hermes_pkg,hermes_pkg_in,PACKET_SIZE*sizeof(int))==0){
 		xil_printf("packets matched !!!\n");
 	}else{
@@ -161,25 +155,23 @@ int main(){
 		}
 	}
 	xil_printf("--- Exiting main() --- \r\n");
-	/*
+	*/
+
 	// checking the header
 	int cmp=1;
-	cmp &=  hermes_pkg[0] == hermes_pkg_in[2] ?  1 : 0;
-	cmp &=  hermes_pkg[1] == hermes_pkg_in[1] ?  1 : 0;
-	cmp &=  hermes_pkg[2] == hermes_pkg_in[0] ?  1 : 0;
-	// cheking the payload
-	for (int i =3; i<PACKET_SIZE; i++){
-		cmp &=  (hermes_pkg[i]+1) == hermes_pkg_in[i] ?  1 : 0;
+	// checking the payload
+	for (int i =0; i<PACKET_SIZE; i++){
+		cmp &=  (hermes_pkg_in[i]) == i ?  1 : 0;
 	}
 	if (cmp==1){
 		xil_printf("packets matched !!!\n");
 	}else{
 		xil_printf("packets do not matched !!!\n");
 		for (int i =0; i<PACKET_SIZE; i++){
-			xil_printf("sent [%x] and received [%x]\n", hermes_pkg[i],hermes_pkg_in[i]);
+			xil_printf("[%x] x [%x]\n", hermes_pkg[i],hermes_pkg_in[i]);
 		}
 	}
-	*/
+
 	return XST_SUCCESS;
 
 }