Re: HC12 (+ Ethernet) development kit ?

5.d@xxxxxxx wrote:

However, my application requires that the MCU processes the data coming
from an ADC, I am wondering if the MC9S12NE64 could handle the Ethernet
side while keeping enough speed for the other tasks. Unfortunately I do not
yet have the specifications of the data flow speed from the ADC to the MCU,
so I thought it would be safer for now to have two separate chips.

I think it would be safer in this situation to have everything on one chip. Freescale has already spent the time to optimize the interface on the NE64. IIRC when ethernet is sending or receiving the SRAM databus multiplexes every-other cycle between CPU and ethernet.

But does it make sense since the Ethernet controller chip should
be handled by the MCU to process the Ethernet transmission ?

You are not going to bit-bang the ethernet so unless you have totally separate CPUs for each of ethernet and A/D it makes most sense to have both as close as possible.

There *are* external TCP/IP ethernet modules little bigger than an RJ45 socket. But about $100 each.
.

Relevant Pages

  • Re: Microcontroller; any suggestions?
    ... For my project I need an Ethernet-connector, one ADC and one DAC. ... Are there any microcontrollers availabel wich have these three features? ... I have found a couple with Ethernet and ADC but not with a DAC... ...
    (sci.electronics.design)
  • Re: Data throughput of embedded ethernet
    ... > Richard H. wrote: ... finding a creative way to load the data directly from the ADC into ... >> MCU. ... Actel has an ethernet core module.. ...
    (sci.electronics.design)
  • Re: Digital Osci and Logic Analyzer
    ... Maybe you can find a pre-made ADC module aswell. ... On a note some fgpa have 1 Gbps ethernet builtin.. ... This would require a memory ...
    (sci.electronics.design)
  • Re: Microcontroller; any suggestions?
    ... Are there any microcontrollers availabel wich have these three features? ... I have found a couple with Ethernet and ADC but not with a DAC... ...
    (sci.electronics.design)