Buildroot configuration for Sinovoip Banana Pi M3 - all 8 cores enabled

Started by Anonymous in comp.arch.embedded1 month ago

Hi, For a few years I couldn't use my Banana Pi M3 for any serious work, because I couldn't compile the optimized Linux image for...

Hi, For a few years I couldn't use my Banana Pi M3 for any serious work, because I couldn't compile the optimized Linux image for it. Yesterday I've managed to create a Buildroot configuration that allows building of BR image for it. Thanks to use of 4.18.6 kernel the SMP is supported and all 8 cores are working. The sources are available on alt.sources: https://groups.google.com/for


OpenSTM32 (Eclipse) debugger trying to write RAM section

Started by John Speth in comp.arch.embedded1 month ago

Hi Folks- I'm having a problem in which the OpenSTM32 System Workbench debugger reports ?Warn : no flash bank found for address 20000000?...

Hi Folks- I'm having a problem in which the OpenSTM32 System Workbench debugger reports ?Warn : no flash bank found for address 20000000? when I flash my STM32 target using System Workbench. The debugger then fails the binary compare process and prevents me from debugging. My linker script defines a memory region called DTCM which is mapped to RAM starting at 0x20000000 for 64K b


Out of Root Code Space

Started by KlinsmannMCW in comp.arch.embedded1 month ago 1 reply

I have a large design that is based on Rabbit 6700 board and using Dynamic C 10.72A version. The main source code has about 600 lines, many of...

I have a large design that is based on Rabbit 6700 board and using Dynamic C 10.72A version. The main source code has about 600 lines, many of which, there are many self created library used. The error I am constantly having the problem is "ERROR STRING.C : Out of root code space." Does anyone know what have I possibly went wrong or what should I do in order to solve this error? Thanks,...


Gerbv

Started by Anonymous in comp.arch.embedded2 months ago 20 replies

Anyone using Gerbv as a Gerber viewer? I'm having a problem where a few drill locations in a drill file look out of location. I seem to have...

Anyone using Gerbv as a Gerber viewer? I'm having a problem where a few drill locations in a drill file look out of location. I seem to have narrowed the problem to the use of trailing zero suppression. I can verify the drill file (which contains only line feeds it appears, so not so easy to view) has a few entries with the trailing zero suppressed. In Gerbv these are all being


DDCMP and 68302

Started by Anonymous in comp.arch.embedded2 months ago 3 replies

Does anyone know anything about DDCMP and the 68302 chip. We have some software that uses it in asynchronous mode over RS485 and we want to see...

Does anyone know anything about DDCMP and the 68302 chip. We have some software that uses it in asynchronous mode over RS485 and we want to see if we can emulate the DDCMP behaviour on another product without the 68302 micro so that we can communicate with the existing product but from a new device with a different microprocessor. The 68302 manual says that in asynch mode when i


"Boost context" for task switching on embedded Linux on ARM

Started by Anonymous in comp.arch.embedded2 months ago 20 replies

Following on from my recent question about PThreads I have a new question about...

Following on from my recent question about PThreads I have a new question about Boost:context https://www.boost.org/doc/libs/1_67_0/libs/context/doc/html/index.html We have some legacy code(Motorola 68000 C) that we want to use that has cooperative task switching. We want to run it all as a single thread and keep its co-operative organization within that thread. Is "Boost context" a


what's the startup clock frequency of PIC1703

Started by Johann Klammer in comp.arch.embedded2 months ago 9 replies

I'd like to run from internal osc (XTAL pins as GPIO), but from the configuration bits it looks like it defaults to ext clk. I can't seem to...

I'd like to run from internal osc (XTAL pins as GPIO), but from the configuration bits it looks like it defaults to ext clk. I can't seem to find docs on their two speed startup and Fail-safe clock monitor thingy. Also, will LVP work?


I2C with DC10.72D

Started by "Ste...@yahoo.com [rabbit-semi]" in Rabbit-Semi3 months ago 1 reply

I downloaded v10.72D of DC and installed it. In the previous version of 10.72 I have (I don't know what letter version it is),I am using function...

I downloaded v10.72D of DC and installed it. In the previous version of 10.72 I have (I don't know what letter version it is),I am using function I2C_initClk() found in I2C_HW.LIB to switch between a 200kHz clock and a 400kHz clock. But thatfunction is not there in v10.72D. Is there another mechanism provided to do the same thing that I'm not seeing? Steve


C++ threads versus PThreads for embedded Linux on ARM micro

Started by gp.k...@gmail.com in comp.arch.embedded3 months ago 49 replies

We're starting an embedded Linux C++ project with an ARM micro and using GCC V7. Can anyone suggest pros and cons of using C++ Threads versus...

We're starting an embedded Linux C++ project with an ARM micro and using GCC V7. Can anyone suggest pros and cons of using C++ Threads versus PThreads (Posix threads).


How to Solder a Wire to Surface-Mount IC With Pins VERY Close Together?

Started by Anonymous in comp.arch.embedded3 months ago 12 replies

We do embedded software, but the hardware is produced by our customer (we don't control it). Sometimes we need to attach a wire (for monitoring...

We do embedded software, but the hardware is produced by our customer (we don't control it). Sometimes we need to attach a wire (for monitoring a serial or I2C interface, or for timing instrumentation) to a surface-mount IC where the pins are VERY close together. The pins are so close together that I can't solder a wire to it, even using high-power optics and the finest soldering i


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