Sync to Android frame rate

Started by John Speth in comp.arch.embedded2 months ago 9 replies

Hi Folks (and pardon me if I'm not on topic)- I'm looking for a way to synchronize some code activity to the Android display frame rate. It's...

Hi Folks (and pardon me if I'm not on topic)- I'm looking for a way to synchronize some code activity to the Android display frame rate. It's a short bit of code that will simply set the color of a small display region, nothing more. Is there some sort of method or hook that I can exploit for this purpose? I can use a timer running at very fast intervals successfully but the renderin...


Populating device list in sysfs, probe invocation - device driver customization / integration

Started by Karthik Balaguru in comp.arch.embedded2 months ago

Hi, I have been trying to customize few i2c drivers and integrate it with a platform based on Intel Atom processor. Tried to use the...

Hi, I have been trying to customize few i2c drivers and integrate it with a platform based on Intel Atom processor. Tried to use the i2c_add_driver concept based on MODULE_DEVICE_TABLE inturn using .id_table which shall invoke the probe function when the device and driver are both found on the system by the Linux device driver subsystem. Used .id_table instead of .of_match_ta


[OT] I got a JOB!!!

Started by Tim Wescott in comp.arch.embedded2 months ago 72 replies

Since this is a newsgroup, and this is news... Wescott Design Services is going into remission, while I pursue a day job. Job title is...

Since this is a newsgroup, and this is news... Wescott Design Services is going into remission, while I pursue a day job. Job title is Software Designer 5 at Planar Systems -- so any circuit design or control systems jones will have to be satisfied by hobby work or on the side. In the near term I'll be finishing up current work with current customers; in the longer term I'll probabl...


Ada-Europe 2017 - end of Mon 22 May = early registration ends

Started by Dirk Craeynest in comp.arch.embedded2 months ago

Come to the Ada-Europe conference mid-June in Vienna, Austria! Reminder: register online before the end of Monday 22 May (CEST) to enjoy early...

Come to the Ada-Europe conference mid-June in Vienna, Austria! Reminder: register online before the end of Monday 22 May (CEST) to enjoy early registration discounts for the conference and substantial discounts for tutorials. Select "Registration" at . Direct link: . Dirk Craeynest, Ada-Europe'2017 Publicity


QF72 story - wow

Started by Clifford Heath in comp.arch.embedded2 months ago 36 replies

This story is a doozy.

This story is a doozy.


The Embedded Muse 329

Started by Reinhardt Behm in comp.arch.embedded2 months ago 5 replies

Just found this in J.Ganssles Embedded Muse: "Without requirements and design, programming is the art of adding bugs to an empty text...

Just found this in J.Ganssles Embedded Muse: "Without requirements and design, programming is the art of adding bugs to an empty text file." - Louis Srygley -- Reinhardt


Serial protocol with physical decoding

Started by Don Y in comp.arch.embedded2 months ago 25 replies

I want to push a bit stream through a series of *identical* devices and have (identical) software running on each determine if that particular...

I want to push a bit stream through a series of *identical* devices and have (identical) software running on each determine if that particular device is being addressed, or not. It seems like the simplest way to do so is to require each device to examine an address field in the packet and, if '0', assume the data that follows is intended for its consumption. If not, decrement the address ...


Ada-Europe 2017 - early registration until May 22

Started by Dirk Craeynest in comp.arch.embedded3 months ago

----------------------------------------------------------------------- 2nd Call for Participation ...

----------------------------------------------------------------------- 2nd Call for Participation *** UPDATED Program Summary *** 22nd International Conference on Reliable Software Technologies - Ada-Europe 2017 12-16 June 2017, Vienna, Austria http://www.ada-europe.org/c...


Play an audio stream with a Cortex-M0+

Started by pozz in comp.arch.embedded3 months ago 3 replies

I need to reproduce a short audio stream with a Cortex-M0+ MCU (it's SAM D21E from Atmel/Microchip). The audio bitstream will be stored in an...

I need to reproduce a short audio stream with a Cortex-M0+ MCU (it's SAM D21E from Atmel/Microchip). The audio bitstream will be stored in an external SPI Flash memory (I need to manage many short audio streams, so the internal Flash memory is not sufficient). SAMD21 features DAC, SPI and DMA. The audio will not be high-fidelity. 8 bits at 8kHz sampling frequency is enough. I didn't m...


A timer driver for Cortex-M0+... it rarely doesn't work

Started by pozz in comp.arch.embedded3 months ago 32 replies

I don't know if it is an issue specific to Atmel SAMC21 Cortex-M0+ devices or not. I wrote a simple timer driver: a 32-bits hw counter...

I don't know if it is an issue specific to Atmel SAMC21 Cortex-M0+ devices or not. I wrote a simple timer driver: a 32-bits hw counter clocked at 875kHz (14MHz/16) that triggers an interrupt on overflow (every 1h 21'). In the interrupt I increment the 32-bits global variable _ticks_high. The 64-bits number composed by _ticks_high (upper 32-bits) and the hw counter (lower 32-bits) is m...


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