Hello, I am very new to EMAC. I have chosen the controller LPC1768 which have inbuilt Ethernet MAC. I am trying to write firmware to operate some leds connected to LPC1768 Board using EMAC protocol.i.e Ethernet cable is connected between LPC1768 Board and Laptop, make led on/off by laptop through EMAC. It would be great if somebody give thoughts on it.
u need a PHY chip and a IP Stack informations can be found here: http://www.code-red-tech.com/lpc1768-development-kit.php
Thanks for your fast reply:) The board which I am using have PHY IC on this board http://coineltech.com/shop/product_info.php/cPath/5_8/products_id/44
ok, u have a DP83848 PHY chip then u need a software IP stack to communicate over TCP/IP or UDP u can write one ..... or u can use an free libary http://www.cm3tools.com/CodeRedWiki/RDB1768cmsisExampleProjects?action=AttachFile&do=get&target=RDB1768cmsis2.zip or http://coineltech.com/images/downloads/lpc1768_hplus_source_code.rar both are using µIP then u can send a UDP paket to switch LED ... or anything you need
Thanks, I am using same µIP code. It working fine. But I am not able to create some button on that http page. For example button LED1_SET/ LED1_CLR and LED2_SET/ LED2_CLR. Depending upon clicking that buttons, need operate LEDs.
u have to build a new html page with buttons and read the html code look in that html code for buttons,... there are "events" checkboxes have also "events" check / uncheck your SW check the html code for those "events" and do something or even not ..
ok I am very new to html(create), I will try to create html with buttons and will check. thanks for your support
Now i have created an html page with buttons , Now i need to perform some operations to blink the test led on my target board when i click on the button created on my html page.At this point ,Im not getting how to read the c code for led blink written using keil ide when i click on the button created on the web page. please do help!!!
Hello there, i got a question about the easyweb example for the lpc1768. Here's how to calculate the address allocated? thank you. #define NUM_RX_FRAG 4 /* Num.of RX Fragments 4*1536= 6.0kB */ #define NUM_TX_FRAG 3 /* Num.of TX Fragments 3*1536= 4.6kB */ #define ETH_FRAG_SIZE 1536 /* Packet Fragment size 1536 Bytes */ #define ETH_MAX_FLEN 1536 /* Max. Ethernet Frame Size */ /* EMAC variables located in 16K Ethernet SRAM _ bank 1 */ #define RX_DESC_BASE 0x20080000 #define RX_STAT_BASE (RX_DESC_BASE + NUM_RX_FRAG*8) // 4*(2*4) #define TX_DESC_BASE (RX_STAT_BASE + NUM_RX_FRAG*8) // 4*(2*4) #define TX_STAT_BASE (TX_DESC_BASE + NUM_TX_FRAG*8) // (4-1)*(2*4) #define RX_BUF_BASE (TX_STAT_BASE + NUM_TX_FRAG*4) // (4-1)*(1*4) #define TX_BUF_BASE (RX_BUF_BASE + NUM_RX_FRAG*ETH_FRAG_SIZE) /* RX and TX descriptor and status definitions. */ #define RX_DESC_PACKET(i) (*(unsigned int *)(RX_DESC_BASE + 8*i)) #define RX_DESC_CTRL(i) (*(unsigned int *)(RX_DESC_BASE+4 + 8*i)) #define RX_STAT_INFO(i) (*(unsigned int *)(RX_STAT_BASE + 8*i)) #define RX_STAT_HASHCRC(i) (*(unsigned int *)(RX_STAT_BASE+4 + 8*i)) #define TX_DESC_PACKET(i) (*(unsigned int *)(TX_DESC_BASE + 8*i)) #define TX_DESC_CTRL(i) (*(unsigned int *)(TX_DESC_BASE+4 + 8*i)) #define TX_STAT_INFO(i) (*(unsigned int *)(TX_STAT_BASE + 4*i)) #define RX_BUF(i) (RX_BUF_BASE + ETH_FRAG_SIZE*i) #define TX_BUF(i) (TX_BUF_BASE + ETH_FRAG_SIZE*i)
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