RM46L852: RM46L852 Ethernet data communication with RM46L852ZWT EV KIT

Instead of DHCP,  to use a static address, I changed the ip to 192.168.0.99 as follows

uint8 ip_addr[4] = { 192, 168, 0, 99 };
uint8 netmask[4] = { 255, 255, 255, 255, 0 };
uint8 gateway[4] = { 192, 168, 0, 99 };
ipAddr = lwIPInit(0, macAddress,
*((uint32_t *)ip_addr),
*((uint32_t *)netmask),
*((uint32_t *)gateway),
ipaddr_use_static);

After that, I received the following message that the wen server was successfully executed.

hercules microcontrollers
Texas Instruments
Little Endian device
Initializing ethernet (DHCP)
DEBUG - Getting PHY ID....SUCCESS
DEBUG - Getting PHY Alive Status...SUCCESS
DEBUG - Getting PHY Link Status...SUCCESS
DEBUG - Setting up Link...SUCCESS
..DONE
Starting Web Server..DONE

hercules microcontrollers
Texas Instruments
Little Endian device
Device IP Address: 99.0.168.192
Webserver accessible @ http:
99.0.168.192

However, I can't connect to the server at that address from my PC.
I would like to know what I need to do to connect to the web server.

I changed the IP ADDRESS setting to the following, changed RMII -> MII from HALCOGEN, and successfully connected to the webserver.
I need to send and receive 100byte data to and from PC every 10ms, if there is any relevant example source, please provide it.

uint8 ip_addr[4] = { 99, 0, 168, 192 };
uint8 netmask[4] = { 0, 255, 255, 255 };
uint8 gateway[4] = { 99, 0, 168, 192 };
ipAddr = lwIPInit(0, macAddress,
*((uint32_t *)ip_addr),
*((uint32_t *)netmask),
*((uint32_t *)gateway),
IPADDR_USE_STATIC);

Hi Jaehyeuck,

Apologies for the late reply.

Actually couple hardware settings will decide the PHY to operate either in MII or RMII mode. Refer below thread to know them.

(+) TMS570LS1227: TMS570LS12HDK + lwIP library: RMII/MII question - Arm-based microcontrollers forum - Arm-based microcontrollers - TI E2E support forums

May be in your hardware the settings might tuned to the MII mode.

jaehyeuck choi said:

I changed the IP ADDRESS setting to the following, changed RMII -> MII from HALCOGEN, and successfully connected to the webserver.
I need to send and receive 100byte data to and from PC every 10ms, if there is any relevant example source, please provide it.

We don't have any example to meet this exact requirement.

You have to modify the active web server example available in git hub to meet your requirement.

httpserver_raw « apps « lwip-1.4.1 « v00.04.00 « LwIP « Application - hercules_examples/hercules_examples - Software Examples for Hercules Processors

--

Thanks & regards,
Jagadish.

Hi. Jagadish.

Thanks for your reply.

A few bytes would be great, so I'd like a hint on the example code or method to communicate data with the PC, not the source code to run the server.

Or, If you have socket communication example, please share me.

Thanks & regards,

Jaehyeuck.

Hi Jaehyeuck,

We don't have any example related to sending smaller data on http protocol. We have an example on TCP and UDP to send smaller data.

As per my understanding of the http code, you can use the "http_write" function to send smaller amounts of data

And to know how to use this function to send smaller data, you can refer the function "http_send_headers"

By referring this function you can understand how here we are providing required arguments to the function "http_write"

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Thanks & regards,
Jagadish.