Embedded Systems Conference
Breaking News
Comments
Newest First | Oldest First | Threaded View
vediappan
User Rank
Author
re: Freescale ups ante with quad-core Qorivva
vediappan   12/21/2012 12:49:38 PM
NO RATINGS
Automotive microcontrollers are just as safety conscious as the Space Shuttle, since human lives are at risk, which is why Freescale adopted a similar strategy to have a completely redundant core whose results are compared with the main core at each time step, allowing errors to be corrected before they cause loss of life.

R_Colin_Johnson
User Rank
Author
re: Freescale ups ante with quad-core Qorivva
R_Colin_Johnson   4/25/2012 4:39:15 PM
NO RATINGS
The redundant core is performing every operation that the main core performs, just one clock step behind, which is then compared with a special error detection and correction unit. If the error can be corrected, it is, if it cannot, then the whole system goes into "limp home" mode, where the driver is instructed to take the car in for maintenance ASAP.

Neo10
User Rank
Author
re: Freescale ups ante with quad-core Qorivva
Neo10   4/25/2012 3:02:57 AM
NO RATINGS
So in effect the performance is still low enough for every computation to be done by a single core. Or is it just doing the data correction for memory to peripheral transactions?

R_Colin_Johnson
User Rank
Author
re: Freescale ups ante with quad-core Qorivva
R_Colin_Johnson   4/24/2012 11:00:40 PM
NO RATINGS
Automotive microcontrollers are just as safety conscious as the Space Shuttle, since human lives are at risk, which is why Freescale adopted a similar strategy to have a completely redundant core whose results are compared with the main core at each time step, allowing errors to be corrected before they cause loss of life.



Radio
NEXT UPCOMING BROADCAST
IoT Network Shoot Out
July 16, 1pm EDT Thursday

Replay available now: A handful of emerging network technologies are competing to be the preferred wide-area connection for the Internet of Things. All claim lower costs and power use than cellular but none have wide deployment yet. Listen in as proponents of leading contenders make their case to be the metro or national IoT network of the future. Rick Merritt, EE Times Silicon Valley Bureau Chief, moderators this discussion. Join in and ask his guests questions.

Brought to you by

Flash Poll
Top Comments of the Week
Like Us on Facebook

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
Special Video Section
Chwan-Jye Foo (C.J Foo), product marketing manager for ...
The LT®3752/LT3752-1 are current mode PWM controllers ...
LED lighting is an important feature in today’s and future ...
Active balancing of series connected battery stacks exists ...
After a four-year absence, Infineon returns to Mobile World ...
A laptop’s 65-watt adapter can be made 6 times smaller and ...
An industry network should have device and data security at ...
The LTC2975 is a four-channel PMBus Power System Manager ...
In this video, a new high speed CMOS output comparator ...
The LT8640 is a 42V, 5A synchronous step-down regulator ...
The LTC2000 high-speed DAC has low noise and excellent ...
How do you protect the load and ensure output continues to ...
General-purpose DACs have applications in instrumentation, ...
Linear Technology demonstrates its latest measurement ...
10:29
Demos from Maxim Integrated at Electronica 2014 show ...
Bosch CEO Stefan Finkbeiner shows off latest combo and ...
STMicroelectronics demoed this simple gesture control ...
Keysight shows you what signals lurk in real-time at 510MHz ...
TE Connectivity's clear-plastic, full-size model car shows ...
Why culture makes Linear Tech a winner.