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Dhanuraj Pillai

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Everything posted by Dhanuraj Pillai

  1. Hi Zygot, thanks for your answer. So for the moment I can leave aside the bottleneck of SPI interface coming in between to Ethernet . Good that you can confirm that it has no programming/reprogramming capability. This was also my understanding when I went through the manual and schematics. My aim is to use the EMSK (EM Starter Kit) for our programming platform making use of its ARC EM4 cores. Given the deadlines, this itself is a huge project for me. EMSK has no Ethernet hardware interface, thats why I'm trying to get Pmod as a piggyback to get an Ethernet hardware interface, so that a stack implementation(UDP, TCP ) can be written/ported and tested on ARC EM4. instead of Ethernet driver an SPI driver shall do the job of communicating with Pmod Microchip and con So when Digilent writes :"Users must provide their own protocol stack software (such as TCP/IP). Digilent provides a set of libraries providing Ethernet support that is available in the Pmod NIC100 Resource Center. " This statement is not so clear to me. Do they mean this 'protocol stack software' in my case goes into my EM4 (Master) or in Microchip NIC100 (Slave)? I would appreciate any kind of tips or also if some one has used this Pmod like this Thanks Dhanuraj
  2. Hello, I would like to use the Digilent Pmod NIC100 Rev B with EMSK from Synopsys (I dont have it yet)to get Ethernet 100Mbps communication via SPI. So some silly questions as I am have not used Pmods till now :) So if my understanding is correct, the Pmod device should be configured as an SPI Slave to my EM SK and the Pmod shall unpacket the SPI Stream and use its preprogrammed MAC inside Microchip ENC424J600. But now it needs a TCP/UDP stack over it . The below statement in the explanation confuses me: "Users must provide their own protocol stack software (such as TCP/IP). Digilent provides a set of libraries providing Ethernet support that is available in the Pmod NIC100 Resource Center. " I checked the schematics of the Pmod , I did not find a JTAG/BDM interface. My question is: 1) The Pmod NIC100 has a Microchip, and program it via any extra in programming interface or how is it done ? 2) The SPI inteface according to Microchip is of max 16M and obviously it is SPI. So how is 100 Mbps on Ethernet achieved , won't there be a bottleneck ? Or some extreme buffering of frames are happening inside the Pmod? Answers to these questions would help me greatly to decide to order these boards or not. :) Thanks in advance for your answers. Best Regards Dhanuraj
  3. Hi, Does Digilent have in its Roadmap (short term/long term), a plan to implement the JTAG access operations for Pmod ESP32 or using some other modules ? Any contacts here for whom I can approach? Thanks Dhanuraj
  4. Hi JColvin, thanks so much for your datasheets, was really a good link, which was just I was looking for. Sorry for the delayed response as I was out of office. I did not dive deep, but my first impression also is that JTAG operations are not possible. However it might be possible to do software update/ reprogramming of the target flash (DUT) wireless using the communication channels UART/SPI. Is my understanding correct? The idea is to fulfil atleast reprogramming of a sealed sensor-> Wifi->ESP-WROOM-32->SPI/UART-> SYNOPSYS BASED MICROCONTROLLER. If this could be primarily achieved, I can start diving deep into interfacing. Thanks again in advance!
  5. Hello, Just a basic question about Pmod ESP32 has debugging and flashing support for Synopsys ARC EM4 and EM6 cores ? Is access of the cores via JTAG possible? Many thanks in advance! Regards Dhanuraj Pillai
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