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Using Ethernet/USB RAM as General Purpose SRAM

Started by srav...@gmail.com in LPC200015 years ago 4 replies

Hello, I am trying to access Ethernet/USB RAM as general purpose SRAM in LPC2378. For this i configured PCONP initialization of USB & Ethernet...

Hello, I am trying to access Ethernet/USB RAM as general purpose SRAM in LPC2378. For this i configured PCONP initialization of USB & Ethernet Bit in KEIL compiler i configured IRAM2 address (0x7FD0 0000-1FFF & 0x7FE0 0000-3FFF. but i am unable to access the USB/Ethernet RAM a general purpose RAM. Waiting for your reply. Ravi


FreeRTOS + uIP serial to ethernet and vise versa ???

Started by ech3l0n in LPC200015 years ago 3 replies

I've got FreeRTOS + uIP up and running with serial and ethernet functioning 100%. I've created 2 tasks, 1 for uart and 1 for uIP. How can...

I've got FreeRTOS + uIP up and running with serial and ethernet functioning 100%. I've created 2 tasks, 1 for uart and 1 for uIP. How can I send the data that comes in from my uart1 out to my ethernet port ? Normally I just would do uip_send("Welcome!", 8); and it would send the data to my server no issues as long as I do it from inside the uIP task. I tried that from the uart ta...


1788 Ethernet Initialitions Take Long Time.

Started by Murat in LPC200012 years ago 2 replies

Hi all, I have developed ethernet driver for LPC1768 using CMSIS lpc17xx_emac driver. And I have applied this driver for LPC1788 using CMSIS...

Hi all, I have developed ethernet driver for LPC1768 using CMSIS lpc17xx_emac driver. And I have applied this driver for LPC1788 using CMSIS lpc177x_8x_emac driver too. But while 1788 CMSIS EMAC Driver setting the Ethernet Physical Mode (calling EMAC_SetPHYMode), its take long time, like as 20 seconds. 1768 is working fine. I cant understand the problem. Thanks. Murat. ----------...


LPC24xx Ethernet (errata, reliability, compatibility to LPC23xx)

Started by Mark Butcher in LPC200015 years ago 10 replies

Hi All I have the following Ethernet problem with the LPC2478 (on Olimex LPC-2478-STK): - Note 1: the Ethernet driver is the same as the one...

Hi All I have the following Ethernet problem with the LPC2478 (on Olimex LPC-2478-STK): - Note 1: the Ethernet driver is the same as the one used for the LPC23XX (RMII mode) - Note 2: the same test works without any problems on the LPC2378 on Keil MCB2300 and Olimex LPC2378-STK (tested at 10M and 100M) - Note 3: the test can be seen at http://demo.uTasker.com (not on the LPC24XX at the momen...


LPC2368 ethernet 100MBits

Started by Fernando Augusto in LPC200016 years ago 4 replies

Hi all, Has anyone tried to use the LPC2368 with DP83848 phy runing at 100Mbits at = a two layers PCB? Did it work? Anyway, has anyone...

Hi all, Has anyone tried to use the LPC2368 with DP83848 phy runing at 100Mbits at = a two layers PCB? Did it work? Anyway, has anyone successfully used the LPC= 2368 with the DP83848 phy runing the ethernet at 100Mbits? At work we just = cant put the LPC2368 (with DP83848) to run at 100Mbits, excpet for a forbid= den PLL frequency output (198MHz, if doesnt fail me) when the ethernet runs= ...


Ethernet JTAG

Started by jsm09a in LPC200018 years ago 3 replies

I am in the market for a reliable JTAG unit, preferrably with ethernet, capable of thorough debugging on LPC2103 and PXA270. Anyone have an...

I am in the market for a reliable JTAG unit, preferrably with ethernet, capable of thorough debugging on LPC2103 and PXA270. Anyone have an opinion on the following possibilities: - Embest UNetICE - Ronetix PEEDI - ARIUM LC-500 - Abatron BDI1000/BDI2000 Thanks, Scott.


USB - really 8K of SRAM on LPC2378???

Started by michael_melkonian in LPC200017 years ago 7 replies

Hi I am using LPC2378 chip. I have a simple memory test routine that I run on Ethernet SRAM (16K) - which works fine, e.g. 1) Passes 16K...

Hi I am using LPC2378 chip. I have a simple memory test routine that I run on Ethernet SRAM (16K) - which works fine, e.g. 1) Passes 16K and not a byte more 2) Fails when accessing past 16K 3) RAM fails, as it should when Ethernet controller power is not enabled via PCONP.30 (as per Phillips Errata Ethernet.2) However, same routine on USB's 8K SRAM works as follows: 1) Works even ...


Keil's Ethernet source code for LPC1768: Transmitting ok, but not receiving

Started by capiman26061973 in LPC200013 years ago 1 reply

Hello, i am trying to use Keil's Ethernet example source code in my own project. I am able to transmit own frames, but i am not able to...

Hello, i am trying to use Keil's Ethernet example source code in my own project. I am able to transmit own frames, but i am not able to receive ethernet packets. No, not really correct, on startup i get 3 corrupt receive packets (with only 1 bytes). 3 seems to come from the number of receive descriptors. When i increase it to 4, i get 4 corrupt packets at startup. Then no more receive p...


LPC2378 - Ethernet

Started by DeV in LPC200012 years ago 28 replies

Hello all...i own a lpc2378-stk kit and want to communicate via Ethernet...Since i am entirely new to communication so i request all the pros to...

Hello all...i own a lpc2378-stk kit and want to communicate via Ethernet...Since i am entirely new to communication so i request all the pros to pls suggest me some sources (online books, articles, links etc.) that can help me to clearly understand set this communication as a beginner...thanks alot! ------------------------------------


LPC2368 Ethernet Driver

Started by samjith_wasim in LPC200015 years ago 7 replies

Hey Guys, We require TCP/IP Protocol to send two bytes of data [SAMPLE PROGRAM]. Currently our Ethernet Driver Data is sent using HTTP...

Hey Guys, We require TCP/IP Protocol to send two bytes of data [SAMPLE PROGRAM]. Currently our Ethernet Driver Data is sent using HTTP protocol.In our Code we convert HTTP WebPage into TCP/IP Data and the same is sent ,We find more difficulty while sending data through HTTP,it is consuming more time too. But our requirement is to just send the two bytes of data in Ethernet.So TCP/IP Protoco...


lwip implemention for LPC2378 + DP83848 (MCB2300 board)

Started by Sergio Paulo Sider in LPC200017 years ago 2 replies

Hi All, Does anybody know a good implementation of lwip (actually the ethernet routines) for the LPC2368+DP83848? And, I suppose ethernet...

Hi All, Does anybody know a good implementation of lwip (actually the ethernet routines) for the LPC2368+DP83848? And, I suppose ethernet code written for LPC2368 also would work for LPC2468, right? Thank you very much! Sergio P. Sider


LPC247x - using USB or Ethernet ram as LCD frame buffer

Started by tclarke1 in LPC200015 years ago 2 replies

The 0x4000 bytes of ethernet ram @ 0x7FD00000 can be used for the LCD frame buffer (if it is enough). There is no need to enable the ethernet to...

The 0x4000 bytes of ethernet ram @ 0x7FD00000 can be used for the LCD frame buffer (if it is enough). There is no need to enable the ethernet to access this ram. I have not been able to use the 0x4000 bytes of AHB1 ram @ 0x7FE00000 for the LCD frame buffer. I can read and write to it from the debugger, but the LCD is a no go. It does not seem to matter if the USB is enabled or not. I thought I...


initilize ethernet in LPC24XX problem

Started by mirsaeed_h in LPC200014 years ago 1 reply

i have a problem in initialize Ethernet, i work with LPC2478 and phy module is KS8721, my code is below : PCONP_bit.PCENET = 1; ...

i have a problem in initialize Ethernet, i work with LPC2478 and phy module is KS8721, my code is below : PCONP_bit.PCENET = 1; POWERDOWN_bit.POWERDOWN = 0; // Pins assignment //------------------------------------------------------ // Write to PINSEL2/3 to select the PHY functions on P1[17:0] // P1.6, ENET-TX_CLK, has to be set for Rev '-' devices and it // must not be se...


Problem with Ethernet

Started by luciano in LPC200014 years ago 1 reply

Hello, i need help with ethernet interface on my LPC2387. I'm using un DP83848 like driver, an d the design is like MCB2300 from Keil...

Hello, i need help with ethernet interface on my LPC2387. I'm using un DP83848 like driver, an d the design is like MCB2300 from Keil development boards. I'm not receiving response from the DP83848, do you have any tips to test the interface between LPC2387 and DP83848? Thanks in advance ------------------------------------


LPC's w/ ENC28J60 for ethernet via SPI

Started by Ryan Niemi in LPC200018 years ago 26 replies

Hello, I'm working on a project that'll require ethernet. I was hoping the LPC's w/ onboard MAC/PHY would come out before this project...

Hello, I'm working on a project that'll require ethernet. I was hoping the LPC's w/ onboard MAC/PHY would come out before this project had to start, but alas, no such luck! I've done the CS8900A, RTL8019A and Asix 10/100 routes before on past projects, but this application needs to be minimal space and lowest netlist connection count as possible to r


FreeRTOS, LPC21xx, MP3 Player and Ethernet

Started by rtstofer in LPC200018 years ago

OK, I have a working MP3 player on the LPC2106 with CF and a VLSI VS1002 CODEC. I know, it is the 3 millionth design and I'll concede ...

OK, I have a working MP3 player on the LPC2106 with CF and a VLSI VS1002 CODEC. I know, it is the 3 millionth design and I'll concede that it is not noteworthy. Now, I want to add Ethernet and probably use the UDP protocol to select the file to play. There are a lot of things going on (like switches and LEDs connected to an SPI Bus Expande


Is it possible to get 4mbps from LPC1768 Ethernet module?

Started by brunodini in LPC200014 years ago 14 replies

Hi there: Im new at this group, and quite new with ARM's too. I need to send data from a PC application(made by me) to the uC, so i thought...

Hi there: Im new at this group, and quite new with ARM's too. I need to send data from a PC application(made by me) to the uC, so i thought about Ethernet communication. I think 4mbps will do the job, at least for now. I've been searching in the group messages and found some related information(http://tech.groups.yahoo.com/group/lpc2000/message/39756). Please, note that bi-direction...


[LPC2468]ethernet transmission problem

Started by laurent vaudoit in LPC200013 years ago 7 replies

Hi all, i have a project with lpc2468 ?c and SMSC LAN8700 phy device sometimes when my firmware send a frame on the ethernet, this one is not...

Hi all, i have a project with lpc2468 ?c and SMSC LAN8700 phy device sometimes when my firmware send a frame on the ethernet, this one is not sent on the bus. everything seems to be correct, i mean i can see the eth_TX_EN signal to high level, i even have the TX_DONE interrupt, but my frame is not seen on the bus. i am in MII mode, my ?c is running at 72MHz when i analyse the signals T...


Ethernet using LPC2368 and DP83848- Remore Fault

Started by niti...@gmail.com in LPC200014 years ago 3 replies

Hello geeks ! I am trying to use ethernet on with LPC2368 and National's PHY DP83843. I am using the EasyWeb example to start with.The...

Hello geeks ! I am trying to use ethernet on with LPC2368 and National's PHY DP83843. I am using the EasyWeb example to start with.The problem is that the MAC is not getting initialized. All I could figure out reading the status register is that it is giving "Remote Fault". The datasheet couldnt give much info about this faulty condition. Will be grateful for any leads, any word of wisdom fo...


9 bit uart

Started by gen_4p in LPC200017 years ago 13 replies

Hi, I need to interface an existing 485 network to ethernet. Protocol is using 9 bit communication for the address recognition. I was going...

Hi, I need to interface an existing 485 network to ethernet. Protocol is using 9 bit communication for the address recognition. I was going to use lpc2376 for 485 Ethernet adapter, but can't find any 9 bit capability on lpc uarts. Have I overlooked something, or LPCs don't have it. May anyone suggest a way to implement it on LPC? Thank you, Gennady



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