Hi all, Has anyone used a Low power MCU with 3 hardware UARTs. Any help appreciated. Thanks Niladri Bose.
MCU with 3 UARTs
Started by ●September 7, 2007
Reply by ●September 7, 20072007-09-07
In article <1189179123.588553.136470@22g2000hsm.googlegroups.com>, niladri1979@gmail.com says...> Hi all, > > Has anyone used a Low power MCU with 3 hardware UARTs. > > Any help appreciated. >How low is low? If low means less than 10mA at 3.3V, I've used all three hardware UARTS on the AT91SAM7S256. Mark Borgerson
Reply by ●September 8, 20072007-09-08
On Sep 7, 3:32 pm, ratemonotonic <niladri1...@gmail.com> wrote:> Has anyone used a Low power MCU with 3 hardware UARTs.The AVR32 series often have 4 UARTS, with varying support for handshaking and modem control.
Reply by ●September 8, 20072007-09-08
On Fri, 07 Sep 2007 15:32:03 -0000, ratemonotonic <niladri1979@gmail.com> wrote:>Hi all, > >Has anyone used a Low power MCU with 3 hardware UARTs. > >Any help appreciated. >The STR7 and STR9 ARM MCUs from ST has three UARTs. Regards Anton Erasmus
Reply by ●September 8, 20072007-09-08
On 8 Sep, 20:34, Anton Erasmus <nob...@spam.prevent.net> wrote:> On Fri, 07 Sep 2007 15:32:03 -0000, ratemonotonic > > <niladri1...@gmail.com> wrote: > >Hi all, > > >Has anyone used a Low power MCU with 3 hardware UARTs. > > >Any help appreciated. > > The STR7 and STR9 ARM MCUs from ST has three UARTs. > > Regards > Anton ErasmusThanks , is there any 8 bit micros with 3 uarts?
Reply by ●September 8, 20072007-09-08
ratemonotonic wrote:> On 8 Sep, 20:34, Anton Erasmus <nob...@spam.prevent.net> wrote: > >>On Fri, 07 Sep 2007 15:32:03 -0000, ratemonotonic >> >><niladri1...@gmail.com> wrote: >> >>>Hi all, >> >>>Has anyone used a Low power MCU with 3 hardware UARTs. >> >>>Any help appreciated. >> >>The STR7 and STR9 ARM MCUs from ST has three UARTs. >> >>Regards >> Anton Erasmus > > > Thanks , is there any 8 bit micros with 3 uarts?Afaik, there is an AVR with 4 UARTS. lookup the atmel site. Something like ATMega64x Rene -- Ing.Buero R.Tschaggelar - http://www.ibrtses.com & commercial newsgroups - http://www.talkto.net
Reply by ●September 8, 20072007-09-08
ratemonotonic wrote:> On 8 Sep, 20:34, Anton Erasmus <nob...@spam.prevent.net> wrote: > >>On Fri, 07 Sep 2007 15:32:03 -0000, ratemonotonic >> >><niladri1...@gmail.com> wrote: >> >>>Hi all, >> >>>Has anyone used a Low power MCU with 3 hardware UARTs. >> >>>Any help appreciated. >> >>The STR7 and STR9 ARM MCUs from ST has three UARTs. >> >>Regards >> Anton Erasmus > > > Thanks , is there any 8 bit micros with 3 uarts?Yes, the ASIX AX110xx series have 3 uarts, and a high speed core: http://www.asix.com.tw/products.php?op=ProductList&PLine=72 Pops up 4th for a google for 80C51 core "three uart" Or, you can use something like the tiny AT89LP21x from Atmel, as a low cost, (very) Smart SPI uart, and add as many UARTs as you like. NXP also have fixed function SPI-UART devices. -jg
Reply by ●September 9, 20072007-09-09
On Fri, 07 Sep 2007 15:32:03 -0000, ratemonotonic <niladri1979@gmail.com> wrote:>Has anyone used a Low power MCU with 3 hardware UARTs.Atmel AVR ATmega640/1280/2560 - they have four. Mit freundlichen Gr��en Frank-Christian Kr�gel
Reply by ●September 9, 20072007-09-09
On 9 Sep, 09:24, Frank-Christian Kruegel <dontmai...@news.invalid> wrote:> On Fri, 07 Sep 2007 15:32:03 -0000, ratemonotonic <niladri1...@gmail.com> > wrote: > > >Has anyone used a Low power MCU with 3 hardware UARTs. > > Atmel AVR ATmega640/1280/2560 - they have four. > > Mit freundlichen Gr=FC=DFen > > Frank-Christian Kr=FCgelThank very much for helpful suggestions , I will read all these datasheets.
Reply by ●September 9, 20072007-09-09
On Sat, 08 Sep 2007 21:34:15 +0200, Anton Erasmus <nobody@spam.prevent.net> wrote:>On Fri, 07 Sep 2007 15:32:03 -0000, ratemonotonic ><niladri1979@gmail.com> wrote: > >>Hi all, >> >>Has anyone used a Low power MCU with 3 hardware UARTs. >> >>Any help appreciated. >> > >The STR7 and STR9 ARM MCUs from ST has three UARTs. > >Regards > Anton ErasmusThere might be something in the Cypress Psoc range that can be configured for 3 UARTS. If one of the UARTs is transmit-only, you can sometimes use SPI ports to generate UART data, if the data length and clocking options are sufficiently flexible, e.g. the SSP on many of NXP's LPC2xxx ARM parts can do this.
