Which micros family is better AVR or ARM?

• Feb 1, 2005

• #1

S

sofia

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Hi..i have worked on atmel micros (89c51, 89c52), now i want to work on new family of micros introduced by atmel (because of high speed, builtin ADC, USB support etc). I wanna ask that which are the best....atmel AVR or atmel ARM. offcoarse i will do only one of them inorder to get strong grip. I know that AVR are of 8 bit and ARM is 16 or 32 bit.

 

• Feb 1, 2005

• #2

Ace-X

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avr32 or arm

Depends on requirements of your project. If you select ARM, I would suggest to start with LPC from Philips (ARM7). They have build-in Flash and RAM, many peripheral options are available. And the most important - they are very cheap - starting from less than 4$ for LPC3131.

 

• Feb 2, 2005

• #3

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7rots51

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avr vs arm

atmel AT91SAM7 series is similar to philips pats and used the same ARM7 core,TMS470 series from TI have ARM7 core and these there companies provide low cost and high performance 32 bit micros,I think AVR is suitable for small projects and a good replacement for 8051 and 8 bit micros,but for larger projects that need RTOS,FS,TCPIP,USB,...... it is better and simpler to use ARM7 based micros.

 

• Feb 2, 2005

• #4

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elcielo

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avr 32bit projects

Philips ARM processor is good.

 

• Feb 2, 2005

• #5

SphinX

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atmel avr 32 vs arm

elcielo said:

Philips ARM processor is good.

Click to expand...

Salam,

How is good ? Please list some features !!!

 

• Feb 2, 2005

• #6

Ace-X

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arm7 60mhz vs avr

Features depend on specific model. There are about 20 models in ARM line from Philips.

For example, here are features of LPC2131 (the cheapest one):
- 32 Kbytes of internal Program Flash (512 Kb in LPC2138)
- 8 Kbytes on-chip data SRAM (32 kbytes in LPC2138)
- up to 60 Mhz
- ISP/IAP
- 8 channels 10-bit ADC
- 10-bit DAC (LPC2132/2138)
- two 32-bits timers
- 6 channels PWM
- watchdog
- on-chip RTC with independent power
- two UARTs, two I2C, SPI and SSP
- on-chip crystal oscillator (from 1 to 30 Mhz)
- enhanced power-down system with peripheral turn-off
- 5V-tolerant inputs
- 3.0V-3.6V single power supply
- LQFP64 package

Cost is $3.9!!!

 

• Feb 2, 2005

• #7

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DigitalScholar

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comparing arm and avr

Another very good ARM processor is Samsung's KS32C50100. Its a 16/32-bit ARM and comes with a very good support and documentation. The reference board Evaluator7T is indeed very good as well. So consider this one as well.

 

• Feb 3, 2005

• #8

V

vdaniel

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compare avr and arm

I will recommend to look to www.keil.com.
They have an excellent and cheap evaluation boards, very nice free soft and very good support. Everything one need to start.

Varuzhan

 

• Feb 3, 2005

• #9

D

dainis

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avr arm vs phillips

DigitalScholar said:

Another very good ARM processor is Samsung's KS32C50100. Its a 16/32-bit ARM and comes with a very good support and documentation. The reference board Evaluator7T is indeed very good as well. So consider this one as well.

Click to expand...

I also using this CPU (S3C4530), but all Samsung "Network CPU" now is discontinued products, and available till 2005.10 .....

 

• Feb 5, 2005

• #10

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ahsan

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avr versus arm what is the better

ARM micros are the best.....If u have a choice to choose between ARM and AVR and u want to do any ONE of them, then i suggest u to learn ARM. ARM micros can be used for big/complex projects and it can do every thing (as far as i know) that AVR micros can do but AVR can not do every thing that ARM can do.

 

• Feb 24, 2005

• #11

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aetosa

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avr code profiling space program size

I'm looking for a schematic for 2 simple programmers for 2 ARM7 uP: Philips LPC2131 and Texas Intstuments TMS470. Thank you for helping.

 

• Feb 24, 2005

• #12

ntfreak

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does avr support arm

I have been using the ST STR71x ARM7 range for the last 8 months, I would recommend this range of devices, The pricing of these is very good, especially with the features/flash size.

Regards
NTFreak

 

• Feb 26, 2005

• #13

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7rots51

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avr vs arm processor

Is there any online site that sells ARM7 micro(Atmel SAM7,TI TMS470,Philips LPC,ST STR71) at reasonable price?

I can not find a good online distributor .

 

• Feb 26, 2005

• #14

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jdhar

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arm str71 price

Aren't dev tools for ARM's really expensive?

 

• Feb 26, 2005

• #15

ntfreak

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avr to arm

with the availablility of gcc compiler and wiggler type debugging interface you can start developing for arm cheaper than most micros, including pic.

Regards
NTFreak

 

• Feb 28, 2005

• #16

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at91sam7x iap

hello there,

as Ace-X presented some features of lowest ARM µP model and a free gcc compiler, informed by netfreak .. it seems, that microchip's PICs are simply not the question !?!
i dont mean that because i am a fan of PIC and os want to have it in every project / problem / task .. but if a lower-range ARM costs about $4 and it is a 32 bit µP being so peripheral rich .. i wont even think about using PIC 18s in reletively big projects !! or am i missing somthing ?

btw .. untill now, i differentiated µC with µP in the way that the formar has a program space and the later don't because it uses external storage device (eeprom, HD), while later has mless prepherals than formar (usually).
after reading the spec (LPC2131 - 32 Kbytes of internal Program Flash.. FLASH!!) ... i am almost lost .. HELP !!!!

 

• Mar 1, 2005

• #17

M

mitesh

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avr vs arm processors

Atmel ARm "SAM7" series is good and low cost compare to all other ARMs , will cost 5$ for 1K qty

 

• Mar 1, 2005

• #18

ntfreak

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Re: AVR or ARM

Not always, we have received better pricing for the ST str71x family - with more perpherals memory/ram.

Regards
NTFreak

 

• Mar 1, 2005

• #19

artem

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AVR or ARM

As far as i understand these arm micros are destined to replace avr alike capabilities micros . Their ram and flash are fixed and are not subject to extension via external memory. DId someone compare program code and ram utilization for same application compiled for avr (or any other conventional 8 bit micros) and one of the arm processors menti8oned here ?

 

• Mar 2, 2005

• #20

ntfreak

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Re: AVR or ARM

The str7 family is available with embedded flash and external emi interface and mmu (str72x family).
We have also been told thet are releasing an ARM9 variant to the mass market with onboard ethernet.

Its strange really st have been using arm cores for about 4-5 years for oem and have finally released to the mass market.

Regards
NTFreak