ST announce their Cortex-M3 micros
FreeRTOS.org
(and: http://www.freertos.org/portstm32iar.html :o)
The Cortex-M3 marketing has trumpeted greater interoperability between
vendors as one of the M3 selling points, so it is interesting to note that
the FreeRTOS.org demos for Luminary Micro and STMicroelectronics Cortex-M3
parts use exactly the same port code, while the port to each ARM7 vendor is
slightly different. This is a real bonus for users, but perhaps gives the
vendors a headache? It will be interesting to see how each vendor attempts
to generate their product differentiation: price, performance, power
consumption, peripherals, etc.
--
Regards,
Richard.
+ http://www.FreeRTOS.org
A free real time kernel for 8, 16 and 32bit systems.
+ http://www.SafeRTOS.com
An IEC 61508 certified real time kernel for safety related systems.
Jim Granville
> See: http://mcu.st.com/mcu/inchtml.php?fdir=pages&fnam=stm32
>
> (and: http://www.freertos.org/portstm32iar.html :o)
>
> The Cortex-M3 marketing has trumpeted greater interoperability between
> vendors as one of the M3 selling points, so it is interesting to note that
> the FreeRTOS.org demos for Luminary Micro and STMicroelectronics Cortex-M3
> parts use exactly the same port code, while the port to each ARM7 vendor is
> slightly different. This is a real bonus for users, but perhaps gives the
> vendors a headache? It will be interesting to see how each vendor attempts
> to generate their product differentiation: price, performance, power
> consumption, peripherals, etc.
Nice parts, differentiation will be mainly in the peripherals/power;
we see the core as less important.
These move ahead of Luminary, in that they have 12b ADC, and offer
CAN+USB in a 48 pin package, which is one combintion we have
been looking for. [Core is pretty much 'don't care']
Power looks to be lower than Luminary as well.
AVR32 is another candidate, but presently that does not show CAN+USB,
nor 12b ADCs
Not clear on the shortforms if the 18MHz SPI is on ALL models ?
-jg
linnix
wrote:
> FreeRTOS.org wrote:
> > See: http://mcu.st.com/mcu/inchtml.php?fdir=pages&fnam=stm32
>
> > (and:http://www.freertos.org/portstm32iar.html :o)
>
> > The Cortex-M3 marketing has trumpeted greater interoperability between
> > vendors as one of the M3 selling points, so it is interesting to note that
> > the FreeRTOS.org demos for Luminary Micro and STMicroelectronics Cortex-M3
> > parts use exactly the same port code, while the port to each ARM7 vendor is
> > slightly different. This is a real bonus for users, but perhaps gives the
> > vendors a headache? It will be interesting to see how each vendor attempts
> > to generate their product differentiation: price, performance, power
> > consumption, peripherals, etc.
>
> Nice parts, differentiation will be mainly in the peripherals/power;
> we see the core as less important.
>
> These move ahead of Luminary, in that they have 12b ADC,
And with separate analog power pins as well, which is a major
shortcoming of the Luminary. I complaint about this a few months ago,
in this group or S.E.D.
steve
> See: http://mcu.st.com/mcu/inchtml.php?fdir=pages&fnam=stm32
>
> (and:http://www.freertos.org/portstm32iar.html :o)
>
> The Cortex-M3 marketing has trumpeted greater interoperability between
> vendors as one of the M3 selling points, so it is interesting to note that
> the FreeRTOS.org demos for Luminary Micro and STMicroelectronics Cortex-M3
> parts use exactly the same port code, while the port to each ARM7 vendor is
> slightly different. This is a real bonus for users, but perhaps gives the
> vendors a headache? It will be interesting to see how each vendor attempts
> to generate their product differentiation: price, performance, power
> consumption, peripherals, etc.
>
> --
> Regards,
> Richard.
>
> A free real time kernel for 8, 16 and 32bit systems.
>
> An IEC 61508 certified real time kernel for safety related systems.
Very nice, seems to be the first ARM I've seen that runs from 2 to
3.6V power supply, core power of 2.3mA @8M...@3.3Volts running from
SRAM is sweet. Bad no samples yet
Is this the time of the year for new processor introductions? Seems to
be
linnix
> On Jun 11, 3:01 am, "FreeRTOS.org" <noem...@address.com> wrote:
>
>
>
> > See: http://mcu.st.com/mcu/inchtml.php?fdir=pages&fnam=stm32
>
> > (and:http://www.freertos.org/portstm32iar.html:o)
>
> > The Cortex-M3 marketing has trumpeted greater interoperability between
> > vendors as one of the M3 selling points, so it is interesting to note that
> > the FreeRTOS.org demos for Luminary Micro and STMicroelectronics Cortex-M3
> > parts use exactly the same port code, while the port to each ARM7 vendor is
> > slightly different. This is a real bonus for users, but perhaps gives the
> > vendors a headache? It will be interesting to see how each vendor attempts
> > to generate their product differentiation: price, performance, power
> > consumption, peripherals, etc.
>
> > --
> > Regards,
> > Richard.
>
> > +http://www.FreeRTOS.org
> > A free real time kernel for 8, 16 and 32bit systems.
>
> > +http://www.SafeRTOS.com
> > An IEC 61508 certified real time kernel for safety related systems.
>
> Very nice, seems to be the first ARM I've seen that runs from 2 to
> SRAM is sweet. Bad no samples yet
>
> Is this the time of the year for new processor introductions? Seems to
> be
I remember ST and TI pre-announced the M3 several months ago. Still
waiting for the other (Texas) shoe to drop.
Jim Granville
> On Jun 11, 3:32 am, Jim Granville <no.s...@designtools.maps.co.nz>
> wrote:
>
>>FreeRTOS.org wrote:
>>
>>>See: http://mcu.st.com/mcu/inchtml.php?fdir=pages&fnam=stm32
>>
>>>(and:http://www.freertos.org/portstm32iar.html :o)
>>
>>>The Cortex-M3 marketing has trumpeted greater interoperability between
>>>vendors as one of the M3 selling points, so it is interesting to note that
>>>the FreeRTOS.org demos for Luminary Micro and STMicroelectronics Cortex-M3
>>>parts use exactly the same port code, while the port to each ARM7 vendor is
>>>slightly different. This is a real bonus for users, but perhaps gives the
>>>vendors a headache? It will be interesting to see how each vendor attempts
>>>to generate their product differentiation: price, performance, power
>>>consumption, peripherals, etc.
>>
>>Nice parts, differentiation will be mainly in the peripherals/power;
>>we see the core as less important.
>>
>>These move ahead of Luminary, in that they have 12b ADC,
>
>
> And with separate analog power pins as well, which is a major
> shortcoming of the Luminary. I complaint about this a few months ago,
> in this group or S.E.D.
>
>
>>and offer
>>CAN+USB in a 48 pin package, which is one combintion we have
>>been looking for. [Core is pretty much 'don't care']
Oops, Hard to believe, but it seems you cannot have CAN and USB
working at the same time !?!
Data sheet has only this tag on ONE pin:
PA11/USART1_CTS/CANRX/USBDM/TIM1_CH4
Maybe there is a BUS driver for USB, they thought to use on CAN, but
we'd happily add an external CAN (better ESD anyway), but they
seem to have overlooked this ?
I'm hoping it is a data sheet oversight, and that no one
would be DUMB enough to design a chip, that claims
"Up to 9 Communication Interfaces
– Up to 2 x I2C interfaces (SMBus/PMBus)
– Up to 3 USARTs asynchronous serial interfaces (4.5
MBit/s) providing:
– Smart Card ISO7816 interface, LIN master slave capability,
IrDA capability, Modem control
– Up to 2 SPI synchronous serial interfaces (18 Mbit/s)
– CAN interface (2.0B Active)
– USB 2.0 full speed interface
"
and then NOT allow CAN and USB operation at the same time ?!
-jg
Eric
> ST is now the first leading MCU supplier to introduce a product family based on this core.
I guess they don't consider Luminary to be a leading MCU supplier. but
it's a low blow regardless.
The thing I like the most about Luminary is their free code library.
And unlike ST, they actually fix bugs in their library in a timely
manner. ST has a reputation for dumping the code out quickly and then
abandoning it.
Eric