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Re: 8051-variant dev board recommendations

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On 07/07/16 06:35, Michael Karas wrote:
> [This followup was posted to comp.arch.embedded and a copy was sent to 
> the cited author.]
> 
> In article <b9e19bb1-964b-9c80-6622-ef37e32d31d5@spth.de>, pkk@spth.de 
> says...
>>
>> I'm looking for dev / eval boards for 8051-variants. Can anyone
>> recommend good/cheap boards that fit the following criteria:
>> * Enough XRAM. I'd need at least 2KB, but 5KB would be better.
>> * There should be free tools to get the program onto the MCU.
>>
>> Ideally, I'd like to have boards for these 8051-variants:
>> * Intel 8052-like
>> * AMD 80C521-style dual dptr (DPL1 at 0x84, DPH1 at 0x85, DPS at 0x86.0)
>> * Philips P89C51R-style dual dptr (DPS at 0xa2.0)
>>
>> Maybe also:
>> * Siemens SAB 80C517-like (8 dptr, DPSEL at 0x92, MDU)
>> * Infineon XC888-like (2 dptr, EO at 0xd0, MDU, Cordic)
>> * Other 8051-variants (multi-dptr styles, possible MDU)
>>
>> Philipp
> 
> If I were you I would give up on all those ancient variants (a good 
> share are already history and many of the others follow soon) and focus 
> on one decent family. SiLabs makes a plethora of variants that have 
> superior on-chip debug support and work as true small architecture SOC 
> type devices. One I have used many times is the C8051F340 part that has 
> on-board 64K byte code flash and 4K bytes of on-chip XRAM. You can buy 
> small development boards off eBay with this processor for in the 25-30$ 
> range.
> 

I don't think Philipp is looking for these boards because he actually
/wants/ to use the ancient 8051 devices.  As a general point, few people
ever choose an 8051 core if they have a choice - they pick a device for
the peripherals and are stuck with the core that comes with it.  But
Philipp is heavily involved in the SDCC compiler - he will be looking
for these devices to test the compiler on them.

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Thread

8051-variant dev board recommendations Philipp Klaus Krause <pkk@spth.de> - 2016-07-07 01:26 +0200
  Re: 8051-variant dev board recommendations Michael Karas <mkaras@carousel-design.com> - 2016-07-06 21:35 -0700
    Re: 8051-variant dev board recommendations David Brown <david.brown@hesbynett.no> - 2016-07-07 08:43 +0200
      Re: 8051-variant dev board recommendations Philipp Klaus Krause <pkk@spth.de> - 2016-07-10 18:50 +0200
  Re: 8051-variant dev board recommendations Martin Riddle <martin_ridd@verizon.net> - 2016-07-07 19:34 -0400

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