ATMEGA164P + Wiznet W5500 Development module PING Issue

Question

ello Everyone I have an ATMEGA164P brd to which I am trying to connect Ethernet Wiz Click W5500 Development Board (https://www.digikey.com/product-detail/en/mikroelektronika/MIKROE-1718/1471-1413-ND/5258596). I am not able to get the PING working. The connections between the two boards are as follows Atmega164P ----- ETH CLICK Brd MOSI ------------- SDI MISO ------------- SDO SCLK -------------- SCK CS (PORTB.4) ------ CS PORTB.3 ---------- RST I cannot get the ping working. On the development board LINK STAT LED glows showing LINK is established but CRS LED blinks GREEN at times. I use BASCOM AVR for coding. This is my 1st post I don’t know if there is a special way to post code. $regfile = "M164pdef.dat" $crystal = 3686400 $baud = 57600 $hwstack = 80 $swstack = 80 $framesize = 80 Config Serialin = Buffered , Size = 8 Config Spi = Hard , Interrupt = Off , Data Order = Msb , Master = Yes , Polarity = Low , Phase = 0 , Clockrate = 4 , Noss = 0 Spiinit Config Pinb.3 = Output Config Portb.4 = Output W5500_nreset Alias Portb.3 Wiz5500_cs Alias Portb.4 'Common registers 'Mode register Const W5500_mr = &H0000 'Gateway address registers Const W5500_gar0 = &H0001 Const W5500_gar1 = &H0002 Const W5500_gar2 = &H0003 Const W5500_gar3 = &H0004 'Subnet mask Address registers Const W5500_subr0 = &H0005 Const W5500_subr1 = &H0006 Const W5500_subr2 = &H0007 Const W5500_subr3 = &H0008 'Source Hardware Address registers Const W5500_shar0 = &H0009 Const W5500_shar1 = &H000A Const W5500_shar2 = &H000B Const W5500_shar3 = &H000C Const W5500_shar4 = &H000D Const W5500_shar5 = &H000E 'Source IP Address registers Const W5500_sipr0 = &H000F Const W5500_sipr1 = &H0010 Const W5500_sipr2 = &H0011 Const W5500_sipr3 = &H0012 Dim Value As Byte Dim Adres As Word Dim Adresl As Byte At Adres Overlay Dim Adresh As Byte At Adres + 1 Overlay Dim Wiz5500_opcode_read As Byte Wiz5500_opcode_read = &H00 Dim Wiz5500_opcode_write As Byte Wiz5500_opcode_write = &H04 Declare Sub Wiz5500_writevalue(byval Reg As Word , Byval Value As Byte) Declare Sub Wiz5500_reset Enable Interrupts Call Wiz5500_reset 'Hardware reset 'Register reset Call Wiz5500_writevalue(w5500_mr , &H80) 'Set Gateway Ip Address ' 192.168.1.1 Call Wiz5500_writevalue(w5500_gar0 , &HC0) Call Wiz5500_writevalue(w5500_gar1 , &HA8) Call Wiz5500_writevalue(w5500_gar2 , &H01) Call Wiz5500_writevalue(w5500_gar3 , &H01) 'Set Subnet mask Call Wiz5500_writevalue(w5500_subr0 , &HFF) '255.255.255.0 Call Wiz5500_writevalue(w5500_subr1 , &HFF) Call Wiz5500_writevalue(w5500_subr2 , &HFF) Call Wiz5500_writevalue(w5500_subr3 , &H00) 'Set MAC Call Wiz5500_writevalue(w5500_shar0 , &H00) Call Wiz5500_writevalue(w5500_shar1 , &H08) Call Wiz5500_writevalue(w5500_shar2 , &HDC) Call Wiz5500_writevalue(w5500_shar3 , &H01) Call Wiz5500_writevalue(w5500_shar4 , &H02) Call Wiz5500_writevalue(w5500_shar5 , &H03) 'Set own IP address Call Wiz5500_writevalue(w5500_sipr0 , &HC0) '192.168.1.200 Call Wiz5500_writevalue(w5500_sipr1 , &HA8) Call…

Eugeny · Answer

allsetgo: Call Wiz5500_writevalue(w5500_mr , &H80) After performing soft reset you must read MR in loop checking its bit 7 to become 0. You can continue with GAR only after you ensured MR’s bit 7 is reset, otherwise you may “write” to the chip while it is in reset mode, thus not setting registers properly.

allsetgo · Answer

800×480 1.1 MB 800×480 1.1 MB 800×480 1.1 MB width=“690” height=“414”> Hello I am trying to read the MR register. Here is the issue. I have uploaded the pics pic 1. MOSI (blue) and SCLK (yellow) - the waveform is for writing to MR register. As seen the MOSI line send &H00, &H00, &H04, &H80 pic2. CS(blue) SCLK (yellow)- It shows the chip select is low when SCLK is present pic3. MISO (blue) and SCLK (yellow)- the problem is the MISO line always shows this weird waveform whether I am reading or writing to the registers. pic4 MOSI (blue) SCLK (yellow)- this is what I send to read the MR register. MOSI line send data correctly &H00, &H00, &H00, &H80 (dummy data) The MISO line is not responding. That means the w5500 registers are not updating. Any recommendation. Please help

allsetgo · Answer

800×480 1.1 MB Looks like pic 2 didn’t upload CS & SCLK

lawrence · Answer

hello, allsetgo In W5500, you must set CS low during SPI Frame. Never set CS low and high each byte in SPI Frame. set CS Low Addr H Addr L OP Data set CS High If CS goes high during SPI frame, It is reset. Thank you lawrence

lawrence · Answer

Glad to hear that!! Sure! anything you want, feel free to ask! Thank you, Lawrence

allsetgo · Answer

Hi Lawrence Here is my issue with setting up the TCP. I am using W5500 in TCP server mode. Here is the sequence in addition to above code. My PING IS working i.e. my module is part of the network. I am using SOCKET0 Start Write Sn_MR = 0x01 Set Socket0 Port = 80 Set SIMR = 0x01 Set S0_CR= 0x01 (OPEN) Read Value of Sn_SR If Sn_SR=&H13 (SOCKET INITIALIZED) ELSE CLOSE SOCKET AND GOTO START Once Initialized Write Sn_CR= 0x02 (LISTEN) Read Value of Sn_SR If Sn_SR=&H14 (SOCKET In Listen Mode) ELSE CLOSE SOCKET AND GOTO START Once Socket is in Listen Mode I read value of Sn_SR to see if it has changed to 0x17 (Established ) Else keep checking it till it goes in Established Mode The Initialize and LISTEN mode works well. But I am not able to ESTABLISH a connection. My Sn_SR stays in Listen Mode. Can you help me in how to send connection request from Client. All I do is open my Mozilla browser and type the Ethernet Module IP that I have set 192.168.1.200 It says unable to Connect Also, how does the Socket Port plays role here. If I set it to 5000, how should I sent request to connect to 192.168.1.200 over port 5000 in my browser.

lawrence · Answer

Hello, allsetgo I want to know about 2 things. First, In TCP connection from web browser, you do not need to do anything because PC will do connect automatically. But, you have to add PC network address “192.168.1.x” in Ethernet Adapter. Second, The network condition. Do you connect W5500 and PC directly or though hub or switch? In both case, you should catch the packet with wireshark. wireshark is open tool and it will show you the connection packet. If you feel hard to use it, please let me know. I will guide you. At the end, If you connect “192.168.1.200” “port=500” in browser, you must type “192.168.1.200:5000” in browser. Thank you lawrence

lawrence · Answer

hello, allsetgo Sn_RX_RD is not automatically updated with new pointer value. After read the RX buffer, user must write Sn_RX_RD with the data size user read from buffer. And do Sn_CR[RECV]. Then Sn_RX_RD value changed. When user want to read data from RX buffer, easy way is using ioLibrary, especaily, “int32_t recv ()” function in ioLibrary I am not sure about how you program it. But I recommand to use iolbrary. it is way easier. GitHub - Wiznet/ioLibrary_Driver: ioLibrary_Driver can be used for the application design of WIZnet TCP/IP chips as W5500, W5300, W5200, W5100 W5100S. (download link). please refer the recv() in socket.c in Ethernet folder in ioLibrary And also in W5500 datasheet, Figure12,13 and Figure20, there is the physical memory address for accessing. To read RX memory, user must directly access to physical memory and read it. If I tell you whole receiving processor at here, it will make more confusing you. Please refer the ioLibrary → Ethernet → socket.c / w5500 And also anything feel free to ask Thank you lawrence

allsetgo · Answer

Hi Lawrence I am using W5500 development brd with my custom ATMEGA164P board. I use BASCOM AVR for coding. I was able to read the data correctly and the no. of bytes sent. I now need help with Sending data. When I read Sn_TX_RD it reads different values all the time Call Wiz5500_readvalue_16bit(sock_tx_fsr , &H08) Print Hex(read_val_16h) ; ":" ; Hex(read_val_16l) ' Reads 0x0800 Call Wiz5500_readvalue_16bit(sock_tx_RD , &H08) Print Hex(read_val_16h) ; ":" ; Hex(read_val_16l) ' Reads random data such as 0x8368 and keeps changing even if I do not issue the send command Call Wiz5500_readvalue_16bit(sock_tx_WR , &H08) Print Hex(read_val_16h) ; ":" ; Hex(read_val_16l) ' Reads same value as Sn_TX_RD Call Wiz5500_writevalue_socket(Addr , &H14 , Data) ' here addr I used was same as what I read from Sn_TX_RD i.e 0x8368 Call Wiz5500_writevalue_socket(w5500_cr , &H0C , &H20) ' Sn_CR= SEND Do Loop Sub Wiz5500_readvalue_16bit(reg , Value) Adres = Reg Reset Wiz5500_cs Spiout Adresh , 1 Spiout Adresl , 1 Spiout Value , 1 Spiin Read_val_16h , 1 Spiin Read_val_16l , 1 Set Wiz5500_cs End Sub Sub Wiz5500_writevalue_socket(reg , Value1 , Value2 ) Adres = Reg Reset Wiz5500_cs Spiout Adresh , 1 Spiout Adresl , 1 Spiout Value1 , 1 Spiout Value2 , 1 Set Wiz5500_cs End Sub

allsetgo · Answer

Hi Lawrence I am using W5500 development brd with my custom ATMEGA164P board. I use BASCOM AVR for coding. I was able to read the data correctly and the no. of bytes sent. I now need help with Sending data. When I read Sn_TX_RD it reads different values all the time Call Wiz5500_readvalue_16bit(sock_tx_fsr , &H08) Print Hex(read_val_16h) ; “:” ; Hex(read_val_16l) ’ Reads 0x0800 Call Wiz5500_readvalue_16bit(sock_tx_RD , &H08) Print Hex(read_val_16h) ; “:” ; Hex(read_val_16l) ’ Reads random data such as 0x8368 and keeps changing even if I do not issue the send command Call Wiz5500_readvalue_16bit(sock_tx_WR , &H08) Print Hex(read_val_16h) ; “:” ; Hex(read_val_16l) ’ Reads same value as Sn_TX_RD Call Wiz5500_writevalue_socket(Addr , &H14 , Data) ’ here addr I used was same as what I read from Sn_TX_RD i.e 0x8368 Call Wiz5500_writevalue_socket(w5500_cr , &H0C , &H20) ’ Sn_CR= SEND Do Loop Sub Wiz5500_readvalue_16bit(reg , Value) Adres = RegReset Wiz5500_cs Spiout Adresh , 1 Spiout Adresl , 1 Spiout Value , 1 Spiin Read_val_16h , 1 Spiin Read_val_16l , 1Set Wiz5500_csEnd Sub Sub Wiz5500_writevalue_socket(reg , Value1 , Value2 ) Adres = RegReset Wiz5500_cs Spiout Adresh , 1 Spiout Adresl , 1 Spiout Value1 , 1 Spiout Value2 , 1Set Wiz5500_csEnd Sub

allsetgo · Answer

Hi Lawrence I tried using the Socket 1 Tx Buffer to send data. I am still not able to. no packet is seen on wireshark. Call Wiz5500_readvalue_16bit(sock_tx_fsr , &H28) ’ &H28 is control byte , I receive output as 0x0800 Call Wiz5500_readvalue_16bit(sock_tx_pointer , &H28) ’ &H28 is control byte, I receive data as 0x0000 Call Wiz5500_writevalue_socket(start_addr_tx , &H34 , &H09) *’ start_addr_tx = 0x0000 (as received from S1_RD ), &H34 is control byte, &H09 is data value. sending only 1 data * Call Wiz5500_writevalue_socket(w5500_cr , &H2C , &H20) * ’ &H2C is control byte, S1_CR=SEND * Please let me know what I am missing.