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votes
2answers
130 views

Designing an IoT product [closed]

This is more of a general question of the embedded electronics industry. At the moment I'm planning on building a device with a similar requirement to the Nest products. Essentially, I want to have a ...
0
votes
0answers
983 views

STM32L4 bootloader unable to enter application

I've been following bootloader guide here and trying to write a bootloader that simply turns an LED on when entering a pushbutton-induced performFirmwareUpdate(). I'm using the ARM GNU toolchain in ...
6
votes
3answers
971 views

ARM Cortex M0+ CoreMark Ratings

Currently when I work with microcontrollers, I use Microchip PICs and I'm happy enough with them. However, I decided to just take a look at ARM for a possible upcoming project. I wanted the pick the ...
1
vote
0answers
127 views

Is there any major difference between using STM32F103C8T6 + ST LINK V2 and using Tiva c concerning debugging?

I have started learning ARM microprocessors and I just wanted some real board to get more comfortable with what i'm learning and I have two options : Getting tiva c launch board or using STM32F103C8T6 ...
3
votes
2answers
774 views

Detecting JTAG pinout

I want identify JTAG pinout on the target board, using the JTAGenum tool. I have read the JTAGenum code, and want to clarify a few point about user configuration. JTAGenum can identify 4 mandatory ...
0
votes
1answer
44 views

Minimal components for arm A9 dev board

If someone wanted to make a barebones dev board, what is needed to get an a9 processor running? Is it reasonable for a school project or will attempting to route the ddr memory and getting it ...
0
votes
1answer
58 views

Compiled-C on a Jazelle Microprocessor

I found a chip that is perfect for my application (it has all the necessary features) (Atmel SAM9G45) The processor is based on ARM v5TEJ Architecture with Jazelle technology for Java acceleration. In ...
-1
votes
1answer
328 views

ARM architecture question [closed]

What is the role of marked area? Where is the address going? Also shouldn't there be an arrow from instruction decoder leading somewhere? I know basics of comp arch and know am aware of program ...
0
votes
1answer
775 views

How to program an ARM microcontroller?

Is there a way to program the ARM microcontroller without solder it to a dev board? I mean, if I want to develop a product based in the ARM architecture I suppose that I have to use one ...
3
votes
1answer
1k views

Is JTAG the standard way to program ARM processors?

Some electrical engineer once told me, that each ARM M3 processor can be flashed the same way, no matter which manufacturer it came from. I suppose he meant using JTAG, or is there another way? Btw,...
7
votes
3answers
668 views

Microprocessors for multiple (~40) SPI devices?

I'm looking at building a product that combines over 40 LCD pushbutton switches (example here that communicate via SPI). I've been looking at microprocessors to handle this, but I am running into ...
7
votes
3answers
1k views

What is the significance of “microcontroller based on microprocessor”?

I am aware about the basic theoretical differences between the two. Like micro controllers have ROM RAM memory etc., but microprocessor has none. But I am still confused. Why is it said "A ...
0
votes
1answer
165 views

Which boards with ARM(like stm32, etc.) can have GPIO pins which can give 3.8V or higher as an output? [closed]

I am trying to get pulses from my board. Right now, I am using stm32f103 board. The problem is that output voltage values of pulses are 3.3V but I need at least 3.8V or higher. As I understand ,I ...
0
votes
2answers
399 views

What is ARM Debug Interface?

I was reading about debuging the code for ARM Cortex-M based MCUs. Moreover, I read about ARM Debug Interface, so What is ARM Debug Interface?
4
votes
3answers
1k views

Difference between Micro-Operations in RISC and CISC processors

I've read that the modern Intel processors use the CISC instructions on the top, which are converted into RISC-like simpler instructions in the form of Micro-Operations at the back-end. So if Intel ...
-3
votes
1answer
347 views

I want to create a custom computer board with USB and Ethernet feature that runs linux. [closed]

I want to make a computer board which only has USB and Ethernet. And the board should run linux. Actually I want to download some data from internet and save it on USB device. I am a programmer I can ...
1
vote
2answers
476 views

Why is there an inductor in this power supply circuit for SAM3X MCU?

I am working on a senior design project and am trying to embed an ATSAM3X8E (Here is the Application Sheet PDF) micro-controller into a system my team is designing. What is the pourpose of ...
3
votes
2answers
512 views

What should I know if I want to move from microcontrollers to microprocessors? [closed]

I'm familiar with using microcontrollers, both with frameworks like Arduino and natively (PIC / AVR). I'm also familiar with the general architecture of embedded systems, in so much as I know you have ...
0
votes
1answer
152 views

Will ARM replace that older processor architecture? [closed]

I know that those processors with ARM architecture have their advantages, but will it replace those old kind of ones? Or they just will be dealing with different kinds of applications and continue to ...
0
votes
1answer
1k views

ARM Cores Benchmark

I am taking some deep interest lately in the ARM architecture and there are many flavors of ARM out there....ARM7, ARM9, ARM11, ARM Cortex-A, ARM Cortex-M and etc. Are there any benchmarks of all the ...
3
votes
2answers
2k views

Why are ARM9 and ARM11 processors still used when the Cortex-A5 is more efficient? [closed]

Many consumer devices that require a low-power processor capable of running for several days to a few weeks on a charge still use ARM9 or ARM11 processors. However, the ARM Cortex-A5 is more powerful ...
2
votes
1answer
562 views

ARM8/ARMv4 properties for qualitative comparison between RISC, CISC, and MISC processor designs

Question: I'm wondering if anyone knows roughly what kind of power consumption one can expect from an ARM processor having the ARM8 architecture (ARMv4 instruction set)? (Edited) Note: I'm not ...
12
votes
6answers
12k views

Minimal ARM circuit requirements

I have done some development with the ATMega and I'm looking to broaden my horizons. I have a couple Cortex M4 series chips and would like make an ARM equivalent to the Breadboarduino I plan to ...
-2
votes
2answers
1k views

FPGA or Microprocessor for Computer Vision based Robot for Indoor Navigation [closed]

I'm building an Indoor navigation robot which can be used in offices and factories especially in closed spaces with good lighting. I've already found out the algorithm i need to use for Indoor ...
6
votes
6answers
2k views

microcontroller / cpu design book? [closed]

I'm looking for an introductory book to CPU / microcontroller /microprocessor design. Any ideas? ARM or x86 are both great. I have a great assembler language book, but I'm looking for something more ...
7
votes
2answers
4k views

Best development board for ARM9? [closed]

I am looking for a cheap but powerful dev board for an ARM9 processor. It needs to be able to run linux. I am unsure about the exact specifications for RAM and such(thats partly why I'm posting this ...