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Announcement: New Members of ZX Family

 
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mikep



Joined: 24 Sep 2005
Posts: 771
Location: Austin, TX
Posted: 16 October 2006, 17:50 PM    Post subject: Announcement: New Members of ZX Family Reply with quote
Oak Micros announces the ZX-24e and ZX-24ae integrated microcontrollers that are hardware and software compatible with the ZX-24 and ZX-24a respectively from Elba Corporation. The most significant enhancements are full access to all 32 I/O pins and a switchable RS232 voltage level and logic level serial channel. See the ZX-24e/ZX-24ae Technical Reference for more details.

These two new microcontrollers contain ZBasic licensed firmware and are supported by the ZBasic Installer 1.4 release announced today. Further details on these two new microcontrollers can be found at http://oakmicros.com/.

The ZX-24e is priced competively at $54.95 and the ZX-24ae is on sale until November 16th at the same $59.95 as the ZX-24a.

Last edited by mikep on 18 October 2006, 7:04 AM; edited 1 time in total
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stevech



Joined: 23 Feb 2006
Posts: 688
Posted: 16 October 2006, 18:03 PM    Post subject: Reply with quote
Very nice!

Regarding the omfram32 - what is the VM execution speed improvement (percent faster)?
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spamiam



Joined: 13 Nov 2005
Posts: 689
Posted: 16 October 2006, 18:47 PM    Post subject: Reply with quote
stevech wrote:
Very nice!

Regarding the omfram32 - what is the VM execution speed improvement (percent faster)?


I am interested to hear that too.

I suspect that the execution speed is not much different. I think that EEPROM is able to be read at the same speed as FRAM. FRAM writes are 1 clock, vs a few milliseconds per byte.

I would suspect that download speeds are better.


I had hoped that persistent variables would be held in FRAM, but they reside in the microcontroller's own EEPROM. I always worry about exceeding the write limit on EEPROM. FRAM has no write limit that we need to worry about in this century.

-Tony
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dkinzer
Site Admin


Joined: 03 Sep 2005
Posts: 2593
Location: Portland, OR
Posted: 16 October 2006, 20:34 PM    Post subject: Reply with quote
stevech wrote:
Regarding the omfram32 - what is the VM execution speed improvement (percent faster)?

It is no faster. The SPI interface to the memory device runs at exactly the same speed as with an SPI EEPROM. Even if it ran faster it is unlikely that you would see much of a speed improvement because the instruction fetching is performed using a pipelined design.

As Tony pointed out, writing will be faster. At the end of the data being written, or at a page boundary, the device is polled until it indicates that it has completed the write cycle. It is at that point that a difference in write speed would be apparent.
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pjc30943



Joined: 02 Dec 2005
Posts: 220
Posted: 17 October 2006, 16:29 PM    Post subject: Reply with quote
Nice job, Mike Smile
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