What is the best Microcontroller for interfacing the Matrix Display

Started by Anonymous in comp.arch.embedded1 year ago 8 replies

Hello All, My current project is to interface the display to the controller that gets the data through a Ethernet port and displays it on P10...

Hello All, My current project is to interface the display to the controller that gets the data through a Ethernet port and displays it on P10 LED display. I have a 16X32 P10 LED display. I have to make a 32X64 display with four such displays. The controller gets the data from either Zigbee or Ethernet (Using HTTP or TCP/IP protocol), extracts the information from the received packets and f...


Murray's 8051 Homepage is back!

Started by Anonymous in comp.arch.embedded1 year ago

Get Keil C source-code for 8051/8052 project from the updated 'Murray's Homepage' at https://8051.duenna.science/ If you find something useful,...

Get Keil C source-code for 8051/8052 project from the updated 'Murray's Homepage' at https://8051.duenna.science/ If you find something useful, then please spread the word.


Programming PICAXE and BASIC Stamp microcontrollers

Started by Peter Percival in comp.arch.embedded1 year ago 7 replies

Does anybody know if PICAXE or BASIC Stamp can be programmed in assembler or Forth (or anything but BASIC!)? -- -- Do, as a concession to...

Does anybody know if PICAXE or BASIC Stamp can be programmed in assembler or Forth (or anything but BASIC!)? -- -- Do, as a concession to my poor wits, Lord Darlington, just explain to me what you really mean. I think I had better not, Duchess. Nowadays to be intelligible is to be found out. -- Oscar Wilde, Lady Windermere's Fan


Copy to and execution from RAM

Started by Klaus Kragelund in comp.arch.embedded1 year ago 10 replies

Hi I am using a STM32 and I want to use the flash as storage, but I need the processor to keep running Writing to flash while execution from...

Hi I am using a STM32 and I want to use the flash as storage, but I need the processor to keep running Writing to flash while execution from flash will take about 20us for 16bit value and when the entire block is close to be filled up an erase of the block takes 20ms 20ms halt of code execution is not an option So, the plan is: Copy code that needs to run to RAM Move p


2nd CfP Ada-Europe 2018 Conference, Lisbon, Portugal

Started by Dirk Craeynest in comp.arch.embedded1 year ago

----------------------------------------------------------------------- 2nd Call for Papers ...

----------------------------------------------------------------------- 2nd Call for Papers 23rd International Conference on Reliable Software Technologies - Ada-Europe 2018 18-22 June 2018, Lisbon, Portugal http://www.ada-europe.org/conference2018 Organized by Univ. Lisboa a...


Using Mscgen for nice looking State Flow Diagrams

Started by Anonymous in comp.arch.embedded1 year ago

Hello, there are many cases where it is useful to monitor a system in real-time and trace the sequence of events. This link...

Hello, there are many cases where it is useful to monitor a system in real-time and trace the sequence of events. This link http://sinelabore.com/doku.php?id=wiki:toolbox:trace-the-event-flow explains how to do code instrumentation and create nice looking Sequence Diagrams showing exactly the flow of events (trace) for a detailed analysis. For the graphics rendering Mscgen is used. Be...


Remapping to Processor code region Vs Without remapping

Started by mohsenzandie in comp.arch.embedded1 year ago 6 replies

What is the differences between: 1.Remapping memories to processor code region and 2.Executing the program code built with absolute addresses...

What is the differences between: 1.Remapping memories to processor code region and 2.Executing the program code built with absolute addresses without remapping I read something about executing multiple image in a microprocessor (ARM Cortex-M3) and i'm ambiguous about differences between executing with remapping image to "code space" and without remapping? I would be grateful if you help me ...


What is the best communication mechanism with collision detection/avoidance for my topology?

Started by Anonymous in comp.arch.embedded1 year ago 7 replies

Hello All, Here is my sensor topology.. _____________ _____________ | ...

Hello All, Here is my sensor topology.. _____________ _____________ | | | | Tx |------------|---------> | Rx | | | | | | |ATMEGA128 | | | ATMEGA8 | | | | | | | Rx |-------


Beware of GNU-ARM compiler for Cortex-M0/M0+/M1

Started by StateMachineCOM in comp.arch.embedded1 year ago 21 replies

The popular GNU-ARM toolset has had long-known issues for the Cortex-M0/M0+/M1 (ARMv6-M architecture). Specifically, people have reported very...

The popular GNU-ARM toolset has had long-known issues for the Cortex-M0/M0+/M1 (ARMv6-M architecture). Specifically, people have reported very inefficient code generated, see "Cortex M0/M0+/M1/M23 BAD Optimisation in GCC" https://embdev.net/topic/426508 . But while so far people reported only inefficient code, I would like to make people aware of *incorrect* code generated by GNU-AR


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