Digital mic sharing on two MCUs

Started by John Speth in comp.arch.embedded4 months ago 7 replies

Hi there- I have a design inquiry that involves interfacing a pair of digital MEMs PDM microphones to two different MCU's (one for wake word...

Hi there- I have a design inquiry that involves interfacing a pair of digital MEMs PDM microphones to two different MCU's (one for wake word processing and another for speech processing after waking). Such a design would reasonably require two clock sources to the mic. Does anybody know what design strategies exist so that PDM mics can be shared among different downstream audio proc...


Efficient debug log

Started by pozz in comp.arch.embedded4 months ago 14 replies

I usually prints some messages on a free UART used as a debug port. They are very useful during debugging to understand the flow of...

I usually prints some messages on a free UART used as a debug port. They are very useful during debugging to understand the flow of execution. Most of the time, I don't compile the debug log facility in release build. I sometimes need to disable messages from some modules and enable messages from other modules under debugging. Moreover I sometimes need to enable/disable less important m...


Datakey silicon inside

Started by John Speth in comp.arch.embedded4 months ago 6 replies

Hi folks- Does anybody know what memory devices are embedded in the Datakey memory tokens? For example, this...

Hi folks- Does anybody know what memory devices are embedded in the Datakey memory tokens? For example, this part: http://datakey.com/downloads/SST_Series_DS_REVD.pdf which is from datakey.com. I'm pretty sure these devices are just embedded serial EEPROMs but Datakey doesn't reveal the part inside. Thanks - John


ARM Cortex Mx vs the rest of the gang

Started by Klaus Kragelund in comp.arch.embedded4 months ago 56 replies

Hi So, considering going the Cortex Mx route for project with new microcontrollers at our firm. Has anyone a feeling/information about the...

Hi So, considering going the Cortex Mx route for project with new microcontrollers at our firm. Has anyone a feeling/information about the development speed of the ARM Cortex Mx series vs the rest of the industry? Meaning, that potentially the same core strategy for the ARM, licensing to toher manufactors mean that they may have faster development speed that others (Microchip, Renesas, wh...


Intel BayTrail E3805 - Serial IO (SIO) - I2C in linux kernel 3.16-lts

Started by Karthik Balaguru in comp.arch.embedded4 months ago 3 replies

Hi, Can someone kindly let me know on the method of enabling driver for Processor Serial IO (SIO) - I2C in linux kernel 3.16-lts for Intel...

Hi, Can someone kindly let me know on the method of enabling driver for Processor Serial IO (SIO) - I2C in linux kernel 3.16-lts for Intel BayTrail E3805. Can you please confirm whether the driver is available by default in linux kernel or should we need to integrate it ? Thanks in advans, Karthik Balaguru


OT: Ping Joe A.

Started by Don Y in comp.arch.embedded4 months ago

Joe, I sent my business laptop on, ahead (your contact information contained within : < ) so I won't have access to it until late tomorrow...

Joe, I sent my business laptop on, ahead (your contact information contained within : < ) so I won't have access to it until late tomorrow (assuming it is delivered when they CLAIM it will be!) Please check the "Release\Joe" directory on Betty for those items. Any problems, use my private email account, it will find me (I won't have easy access to USENET or the other public forums while


Camera I/F's

Started by Don Y in comp.arch.embedded4 months ago 12 replies

I hacked together my "IP cameras" using some web cams for which I was able to track down some FOSS i/f implementation documentation. This was...

I hacked together my "IP cameras" using some web cams for which I was able to track down some FOSS i/f implementation documentation. This was OK for a proof of concept. But, I now have to settle on "production" hardware. There seem to be a variety of i/f's for cameras: - RS170 (requires hardware to digitize the signal; inflexible) - parallel (video is digized, just needs to be captured a...


FTP (or similar) over serial port of an embedded linux system

Started by pozz in comp.arch.embedded5 months ago 8 replies

Maybe this question should be posted in a linux development group, however the use of a serial port is more typical in an embedded...

Maybe this question should be posted in a linux development group, however the use of a serial port is more typical in an embedded environment, so I try to post here. I have an embedded Linux box (based on a Raspberry) with a serial port converted to a USB port through a UART-USB transceiver from Microchip. This USB port is seen as a COM port under Windows OS. I need to do simple ope...


Resource constraints as a bound to complexity

Started by Don Y in comp.arch.embedded5 months ago 6 replies

Most of my designs have been ultimately constrained by the resources available *in* the design (which, in turn, is usually dictated by price,...

Most of my designs have been ultimately constrained by the resources available *in* the design (which, in turn, is usually dictated by price, power and/or size constraints). I've been discussing this with colleagues who have invariably had similar experiences. None of us could "upgrade" a product after release. You might change the feature set or fix bugs but the complexity of the produc...


Customizable Embedded 3D Surround View Turn-Key Solution on Apalis iMX6 SoM

Started by Sunil Kumar in comp.arch.embedded5 months ago

Toradex's partner TES Electronic Solutions GmbH presents a customizable 3D Surround View Turn-Key solution based on the Toradex Apalis iMX6 SoM...

Toradex's partner TES Electronic Solutions GmbH presents a customizable 3D Surround View Turn-Key solution based on the Toradex Apalis iMX6 SoM that can be quickly adapted concerning the specific requirements of the targeted vehicle. Read more in their guest blog post here: https://www.toradex.com/blog/customizable-embedded-3d-surround-view-turn-key-solution-apalis-imx6-som


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