Need 8/16-bit micro with >=32K Flash and external data bus

Maybe Ubicom IP2022 (120/160Mhz Risc and VERY fast, only 4.8Mhz external clock, 8Bit, 64kB Flash,

How about the AVR ATMega128 ? It has 128K of flash with an external data bus. The external bus has only 16 Address lines, and can be used for peripherals and RAM only. (No external Code). It has the JTAG debugging as well, and as a bonus you can use GCC to develop your code.

Regards Anton Erasmus

Have you looked at Atmel's AVRs, particularly the ATmega64? It has more flash than you need (64k), 4k RAM on-board, up to 64k external memory space, and JTAG debug. Digikey price is about US$8.50 for 100

-- I'm sure you can do better. Tool support is good (avr-gcc works well, CodeVisionAVR is cheap and easy, IAR and Imagcraft also have tools).

Of course, using the external memory interface chews up some of your I/O, and you've only got 64 pins to start with. But it's a nice line of chips to work with.

Regards,

-=Dave

Chris, check out the Renesas M16C62.

Glyn Support is excellent. And they sell any quantity. No matter if you want

Plenty of Appnotes available for the M16C.

regards /jan

chris schrieb in im Newsbeitrag: snipped-for-privacy@posting.google.com...

On 3 Sep 2003 10:42:39 -0700, cjwang snipped-for-privacy@hotmail.com (chris) wrote in comp.arch.embedded:

What's expensive about the HCS12? The D64J with 64K Flash, 4K RAM, 1K EEPROM, 2 10-bit A/D's (total 16 channels), 2 UARTs, SPI, CAN, PWM's, and all sorts of goodies, and (about, I'm at home now) $7.85 in the big package for 1K.

The eval board with BDM cable and limited version of CodeWarrior is $495, and you can upgrade it to 32K executables for $500, 64K executables for $1000. And there are other, less expensive compilers that will work with the eval board (and your target, if you put the BDM header on it).

There's an upcoming (or already shipping) 32K Flash/2K RAM part with less I/O under $6.00. There might be other low price versions also, I was only looking at the ones with CAN 2.0B on board.

We're using the D64J as one of the controllers in a multiple board, multiple processor product development right now, and so far we are quite happy with it.

On 3 Sep 2003 10:42:39 -0700, cjwang snipped-for-privacy@hotmail.com (chris) wrote in comp.arch.embedded:

What's expensive about the HCS12? The D64J with 64K Flash, 4K RAM, 1K EEPROM, 2 10-bit A/D's (total 16 channels), 2 UARTs, SPI, CAN, PWM's, and all sorts of goodies, and (about, I'm at home now) $7.85 in the big package for 1K.

The eval board with BDM cable and limited version of CodeWarrior is $495, and you can upgrade it to 32K executables for $500, 64K executables for $1000. And there are other, less expensive compilers that will work with the eval board (and your target, if you put the BDM header on it).

There's an upcoming (or already shipping) 32K Flash/2K RAM part with less I/O under $6.00. There might be other low price versions also, I was only looking at the ones with CAN 2.0B on board.

We're using the D64J as one of the controllers in a multiple board, multiple processor product development right now, and so far we are quite happy with it.

Have a look at Zilog's Acclaim series, especially F93.

Maciek.

Thanks all for your help. I am currently leaning towards the ATMega64 if I can make do with an

I was also looking at the Mitsubishi M16C and it does have what I was looking for. Unfortunately, that and the H8 Tiny do not have JTAG debug circuitry and I cant afford to shell out money for an ICE.

Spent a lot of time up some dead ends too. I had originally thought the TI MSP430 had an external data bus but I was wrong. That hurt, since I thought it had everything I had wanted and was low power and cheap, too.

Thanks again for the help everyone. Does anyone know a quick reference on the web for this kind of information? It is so painful to look for these manufacturers one by one. Chris

Everyone drops their prices, if the volumes are high enough :)

You could also look at these C51 core alternatives

STm uPSD3xxx family - this lists from $5.50-$8.95 region at future, and has JTAG.isp, uC and lots of FLASH.EE.RAM.USB

Not clear on the JTAG_debug status, but with all the code space, and USB, seems a USB-ICE would be possible :)

Sharp LZ87010 I think has a debug channel

-jg

Found this press release from Sept 2002, so part should be just about real now :) - anyone used these yet ?

BlueStreak MCU is shipping to beta customers and will be available in production quantities in Q1 2003.

channels with 128-byte waveform generator RAMs, and 16 high-current outputs. The device offers six 16-bit timer/counters with input capture, output compare and PWM capability, plus a watchdog timer and RTC. The LZ87010 also has two UARTs and an I²C serial interface.

-jg

"chris" ha scritto nel messaggio

M16C62 has a free serial monitor / debugger that uses internal address decode logic to provide to up to two (maybe more in latest series such as

Just completed two big projects (>100K binary) without any problem.

I would second that, but "without any problem" is a bit too optimistic. The compiler has some minor quirks (that said in rare cases it compiles things so as you must rearange your code to have it work ok), and the debugger must be used in the so called "free running mode" if you use interrupts intensively or else it hangs every now and then. But again, apart from these little quirks, you get quite a good thing for very few money. Your price idea is reasonable but it depends on the kind of cpu you end up with.

Markus

Philips offers a 32-bit micro based on ARM 7 with 128k flash and 16k RAM. However external bus is a little tricky, would need to do this with some I/O pins in software. According to the Philips press release devices are aroun $5 for lots of 10k through distribution in the US. Availability seems finally to become real, though the start was a little slow.

Some information can be found here (seems to be somebody who got samples early):

Cheers, Schwob

BlueStreak MCU is shipping to beta customers and will be available in production quantities in Q1 2003.

channels with 128-byte waveform generator RAMs, and 16 high-current outputs. The device offers six 16-bit timer/counters with input capture, output compare and PWM capability, plus a watchdog timer and RTC. The LZ87010 also has two UARTs and an I²C serial interface.

There's nothing like coming late to a party...

Don't bother with the Philips part if you need an external bus. OKI has two families of ARM7s with 16 bit external expansion busses. The ML67Q4002/3 have lots of on chip peripherals, 32 KB of RAM and 256 or

The Q400x are out now and the Q500x will be shipping next month. We are using the Q5003 on a new DSP board we are doing. Nohau will be selling an eval board for the Q5003 then as well.

The low end price at qty 1000 is about $8 and the high end price is about $11, IIRC. Unique and NuHorizons are distis.

Let us know what you end up with.

Schwob wrote:

BlueStreak MCU is shipping to beta customers and will be available in production quantities in Q1 2003.

channels with 128-byte waveform generator RAMs, and 16 high-current outputs. The device offers six 16-bit timer/counters with input capture, output compare and PWM capability, plus a watchdog timer and RTC. The LZ87010 also has two UARTs and an I²C serial interface.

It may be a tiny bit expensive but you may want to have a look at the Atmel AT91FR40162. It is listed in Digikey at $14.34 (in 1's - I think). It is their AT91R40008 co-packaged with a flash part. That gives you a 70MHz ARM7 with 256KB of static RAM and 2 MB of flash in a single 121-BGA.

Hope this helps.

-Bill Knight R O SoftWare

You might also check out the eZ80 Acclaim line. They look like a very capable line, and you can get the development kit for less than $100!

See

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