AW: Dreaming in Technicolor

Hi Bob

You forgot to mention Price < $5 ;-)

The Samsung S3C2410 [and similar] may come a bit closer to your dreams
(?)

Regards

Mark

 
Mark Butcher Bsc (Hons) MPhil MIEE
 
M.J.Butcher Consulting                
Obere Bahnhofstr. 13,  CH-5507 Mellingen,
Switzerland         www.mjbc.ch / www.uTasker.com
056 491 48 10 / 079 402 26 37 / Skype: M_J_Butcher
 
 
 

-----Ursprüngliche Nachricht-----
Von: [email protected] [mailto:[email protected]]
Im Auftrag von Bob Furber
Gesendet: Mittwoch, 30. Januar 2008 00:00
An: [email protected]
Betreff: [ColdFire] Dreaming in Technicolor

X-SpamDetect-Info: ------------- Start ASpam results ---------------
X-SpamDetect-Info: This message may be spam. This message BODY has been
altered to show you the spam information 
X-SpamDetect: *****: 5.100000 DodgySource=2.0, SPF Default Fail=2.5,
X-Verify-SMTP present=0.6
X-SpamDetect-Info: ------------- End ASpam results -----------------

I dream of finding a fast, low-power MPU with good control features, 
that can interface to lots of external memory to host a serious OS. I 
have yet to find such an animal.

I see Freescale, NPX, ST and others tripping over themselves to come up 
with yet another or better 32-bit single-chip MPU. But, without external

memory to host a serious OS.

I salivate when I look at the MCF5553/4 with a plethora of dream I/O 
features ..but, with insufficient memory to host an OS.

I look at the newer ColdFire external memory offerings with reasonable 
speed and low power features, capable of hosting an OS. But, it seems 
that they are i.MX wannabees, lacking serious control features (i.e., 
HC11 like technology to generate PWM signals).

PowerPCs either offer mouth-watering control features with limited 
memory, or external memory with limited control features. And the PPC 
requires more instructions to do anything useful, making it a rather 
slow memory hog.

i.MX and X-Scale offer speed, access to large memories, but little in 
the way of control features.

...and so on go the yabats.

Every so often I dream about MOAM (Mother of all MPUs) and this is what 
it looks like:

CPU:	           ColdFireV3 or Arm9 or 11
                    to enjoy Linux/uClinux support
Speed:	           > 200 MHz
DRAM Controller:   1.8v DDR/DDR2, 16 bit wide (FlexBus), 64MB or more
Flash Controller:  1.8v NOR, 16 bit wide, 64MB or more
                    1.8v NAND
Core Voltage:      1.8v or less
I/O Voltage:       3.3v. 5v tolerant
Power:             ultra low consumption, slow and sleep modes
eMIOS:             16+ ch (or 24 ch a la MPC5553)
eTPU:              16+ ch
SCI serial ports:  2+
USB:               1 device + 1 host
Ethernet:          10/100 with on-chip Phy
AtoD:              8 ch 12 bit, 100+ Ksps
QSPI:              with DMA controller for decent throughput
                    3+ chip selects
                    64+ MHz
GPIO module:       Unused pins -> GPIO
BDM:               6 pin (better yet, on-chip USB-BDM module)
Package:           As small as possible, 0.8mm BGA

Nice-To-Haves
CAN                1+ Ch
SD card interface
Keypad interface
Graphic LCD interface

Am I a voice in the wilderness?

Bob Furber


---
[email protected]              Send a post to the list.
[email protected]        Join the list.
[email protected]    Join the list in digest mode.
[email protected]     Leave the list.