Problems with io6Library

Question

Hi, I am trying to use the io6Library with a PIC24 and MPLAB X IDE. I followed the " How to use" steps on the github page but cannot get the chip ID read out: ctlwizchip(CW_GET_ID,&chip_id); // Check WIZCHIP ID value for read test Do I need to call wizchip_init() or ctlwizchip(CW_SYS_UNLOCK,&syslock) before reading the chip ID? When these functions I can see some SPI communication with an logic analyzer. If ctlwizchip(CW_GET_ID,&chip_id) is called, I cannot see any SPI communication. Anyone who can help me or point me in the right direction? Thank you!

taylor · Answer

Hello, The CW_GET_ID means static strings of _WIZCHIP_ID_ defined in wizchip_config.h. There are examples of W6100EVB. This is Loopback one of W6100 examples. Thank you.

phischl · Answer

Thanks taylor for your reply. I included the wizchip_conf.h but I can’t see any SPI activity on the SPI pins. Thanks for the link, I will try one of the examples.

phischl · Answer

Unfortunately I didn’t manage to get the loopback example to run. The output in the terminal looks like this: PHY OK. Register value after W6100 initialize! Mac address: 01:02:03:61:00:46 IP address : 1.2.3.97 SM Mask : 1.2.3.97 Gate way : 1.2.3.97 DNS Server : 168.126.63.1 GW6 : 0102:0361:0046:6110:0B00:0000:0000:0000 LLA : 0102:0361:0046:6110:0B00:0000:0000:0000 GUA : 0102:0361:0046:6110:0B00:0000:0000:0000 SUB6 : 0102:0361:0046:6110:0B00:0000:0000:0000 NETCFGLOCK : 0 I copied everything from the main file into my main.c file and also the function calls: W6100Initialze(); ctlwizchip(CW_SYS_UNLOCK,& syslock); ctlnetwork(CN_SET_NETINFO,&gWIZNETINFO); printf(“Register value after W6100 initialize!
”); print_network_information(); while(1) { loopback_udps(0,ethBuf0,50000,AS_IPV4); loopback_tcps(1,ethBuf3,50003,AS_IPV4); loopback_tcps(2,ethBuf4,50004,AS_IPV6); loopback_tcps(3,ethBuf5,50005,AS_IPDUAL); } I attached some screenshots of the SPI communication, does this look right? Capture21576×448 107 KB Capture2_21761×453 122 KB Thanks for your help.

phischl · Answer

The output in my serial monitor looks like this: I am not sure why the IP address can’t be set. Does someone know where the problem is or point me in the right direction? Thank you!

phischl · Answer

I found the problem: I am using a 16bit MCU while the library is written for a 32bit MCU. In the w6100.h file I had to add some type casting for the address registers: #define SIPR (W6100_IO_BASE + ( (uint32_t) 0x4138 << 8) + WIZCHIP_CREG_BLOCK) Now I can read out chip ID, network parameters and also the loopback example works.