Re: [vcf-midatlantic] Happy owner fo a Tandy MC-10
On 1/19/19 9:06 AM, Duane Craps via vcf-midatlantic wrote: I haven't gotten the MC-10 yet (won the bid last night). Before I start buying parts for it I'll check that it works. I found some documentation on the MC-10. I already have the 68xx asm books. Really need to find that Moto 6808 CoCo board. I think that's what the MC-10 is abased on. 6800 family, binary compatible 6800 - microprocessor 6802 - 128B of RAM, (microprocessor) 6808 - No ROM, No RAM (microprocessor) 6801 - ROM, RAM, IO (microcontroller) 6803 - RAM, IO, No ROM (microcontroller) 6809 - different microprocessor, mnemonic super set (not binary compatible) I haven't checked the circuit but it might be possible to feed it 9v AC as long as you have the correct current rating (I think it's 1.5A). The DC is okay for now as long as you don't need the RS232 and the cassette (ouch). I have found the various French Alice and Alice 90 stuff. Not sure how compatible it is but it's based on the MC-10. I'm sure there is something interesting there. I have a CoCo 1/2/3, a few Grant Searle's FPGA emulation boards, I'll let you know how that goes. I also have my Sardis ST2900 which I should be working on as I know they need a few chips and then documenting how we used to get them from ROM monitor to full OS9. BTW, love the 6809. :-) -- Linux Home Automation Neil Cherry ncherry@linuxha.com http://www.linuxha.com/ Main site http://linuxha.blogspot.com/ My HA Blog Author of: Linux Smart Homes For Dummies
On 1/19/2019 11:23 AM, Neil Cherry via vcf-midatlantic wrote:
On 1/19/19 9:06 AM, Duane Craps via vcf-midatlantic wrote:
...
6800 family, binary compatible 6800 - microprocessor
6802 - 128B of RAM, (microprocessor) 6808 - No ROM, No RAM (microprocessor)
6801 - ROM, RAM, IO (microcontroller) 6803 - RAM, IO, No ROM (microcontroller)
6809 - different microprocessor, mnemonic super set (not binary compatible) ...
I'll add a few entries to your 68xx cpu/mcu list: 6804 - different incompatible microcontroller from 6801, slow serial ALU, 64 byte RAM, 3 I/O ports with DDR, mask ROM only, very rare/obscure (made for only a year or two), cannot execute from RAM, this is usually lumped in with the 6805 as the 6805 was far more popular. 6805 - microcontroller, same opcode set/compatible with 6804, but with a fast parallel ALU, both mask ROM and EPROM (with self programming!) options, and can execute code from RAM; spawned the extremely successful 68HC05 and 68HC08 series later on. Several pinouts (28, 40) were available of the 6805, some with built in ADC ports and up to 4 I/O ports. 6805s were extremely popular early 8-bit embedded systems devices, used in diverse spaces such as motor controllers for the heathkit hero robots, alarm keypads, computer keyboards for row/column scanning, protection devices on arcade games, key scan controllers in synthesizer keyboards, automotive uses, and likely on thermostats and alarm systems, etc. The 68hc05 descendants were used in too many places to count, including all of the above, plus the cd servo and slave mcus on the CD-I game console, the EGRET, CABOOSE and CUDA chips which manage PRAM on later Mac II series and other old and new world Mac machines, the CD MECHICON on the Sony Playstation, etc. 68HC11 - microcontroller descendant of the 6809 but not binary compatible, much more powerful than the 68hc05 and 68hc08 series opcode-wise, but not as powerful as a 6809 or 68000. Has internal RAM, and either ROMLESS, Mask, EPROM or Flash ROM. This spawned the backwards-compatible (I think?) 68HC12 with added fuzzy logic opcodes and related features. These were popular in the automotive sector, as well as on some test equipment. The 68hc11 was also used on the MIT HandyBoard, a direct ancestor to the Lego RCX MindStorms bricks (the latter are H8/3292 based). -- Jonathan Gevaryahu jgevaryahu@gmail.com jgevaryahu@hotmail.com
On 1/21/19 1:49 AM, Jonathan Gevaryahu via vcf-midatlantic wrote:
On 1/19/2019 11:23 AM, Neil Cherry via vcf-midatlantic wrote:
On 1/19/19 9:06 AM, Duane Craps via vcf-midatlantic wrote:
...
6800 family, binary compatible 6800 - microprocessor
6802 - 128B of RAM, (microprocessor) 6808 - No ROM, No RAM (microprocessor)
6801 - ROM, RAM, IO (microcontroller) 6803 - RAM, IO, No ROM (microcontroller)
6809 - different microprocessor, mnemonic super set (not binary compatible) ...
I'll add a few entries to your 68xx cpu/mcu list:
6804 - different incompatible microcontroller from 6801, slow serial ALU, 64 byte RAM, 3 I/O ports with DDR, mask ROM only, very rare/obscure (made for only a year or two), cannot execute from RAM, this is usually lumped in with the 6805 as the 6805 was far more popular.
6805 - microcontroller, same opcode set/compatible with 6804, but with a fast parallel ALU, both mask ROM and EPROM (with self programming!) options, and can execute code from RAM; spawned the extremely successful 68HC05 and 68HC08 series later on.
Forgot about the 68HC08, I'm betting that the H8HC08 and the 6808 are not compatible.
68HC11 - microcontroller descendant of the 6809 but not binary compatible, much more powerful than the 68hc05 and 68hc08 series opcode-wise, but not as powerful as a 6809 or 68000. Has internal RAM, and either ROMLESS, Mask, EPROM or Flash ROM. This spawned the backwards-compatible (I think?) 68HC12 with added fuzzy logic opcodes and related features. These were popular in the automotive sector, as well as on some test equipment. The 68hc11 was also used on the MIT HandyBoard, a direct ancestor to the Lego RCX MindStorms bricks (the latter are H8/3292 based).
I don't have any 68HC12 boards but I have the 68HC11 eval board and several Handy boards (are they vintage yet?). BTW, the MC-10 arrived and started right up. The description about the marks on the computer are correct but not as bad as expected. 30+ years of being tossed around in storage seems to be on par for what's there. -- Linux Home Automation Neil Cherry ncherry@linuxha.com http://www.linuxha.com/ Main site http://linuxha.blogspot.com/ My HA Blog Author of: Linux Smart Homes For Dummies
BTW, the MC-10 arrived and started right up. The description about the marks on the computer are correct but not as bad as expected. 30+ years of being tossed around in storage seems to be on par for what's there.
-- Linux Home Automation Neil Cherry ncherry@linuxha.com
Nice. Congratulations! Tony
On 1/23/2019 10:00 AM, Neil Cherry wrote:
I don't have any 68HC12 boards but I have the 68HC11 eval board and several Handy boards (are they vintage yet?).
They're from 1991 (my university used them until at least 2006), so I'd venture that yes, they're vintage (>25 years old is my personal cutoff for that stuff). -- Jonathan Gevaryahu jgevaryahu@gmail.com jgevaryahu@hotmail.com
participants (3)
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Jonathan Gevaryahu -
Neil Cherry -
Tony Bogan