Hi @sgstreet

As for now the two documents on this page: https://www.sony-semicon.co.jp/products_en/spresense/ are all there is for chip documentation. I can try to see if I can get any information on if there will be an update soon.

BR
Karl

@TE-KarlKomierowski

working now, thanks!

Hi @thedubdude,

The latest release: https://github.com/sonydevworld/spresense-arduino-compatible/commits/master Spresense arduino compatible package 1.3.0 will have multicore support. I don't think that the documentation have been released yet but please stay tuned.

Try to update your Arduino IDE to use the latest Spresense package and see if you can get the multicore examples to work in order to get you forward.

Thanks for your input, will use this as an input to hopefully improve future versions of the API

@thedubdude said in Visual Studio 2017 compatibility?:

Will the Spresense software work with MicroSoft Visual Studio 2017? I presently use Visual Studio for my Arduino Uno IDE.

Officially only the Arduino IDE is supported but using Visual Studio as editor should work just fine.

Hi @allenbjr

This is the answer I got for you: "Spresense doesn't support TrustZone because its chip (Cortex-M4F) is based on ARMv7-M architecture.
TrustZone is the feature of ARMv8-M architecture."

FYI, Fix...
unplug USB, then plug in again resolve flash.sh hang.
Provided info below to help others see expected response.

:~/spresense/sdk$ ./tools/flash.sh -l ~/spresense/firmware/spresense -c /dev/ttyUSB0

Install files ...
install -b 115200
Install ~/spresense/firmware/spresense/dnnrt-mp.espk
|0%-----------------------------50%------------------------------100%|
######################################################################

88352 bytes loaded.
Package validation is OK.
Saving package to "dnnrt-mp"
updater# install -b 115200
Install /home/archangel/spresense/firmware/spresense/AESM.espk
|0%-----------------------------50%------------------------------100%|
######################################################################

28944 bytes loaded.
Package validation is OK.
Saving package to "AESM"
updater# install -b 115200
Install /home/archangel/spresense/firmware/spresense/gnssfw.espk
|0%-----------------------------50%------------------------------100%|
######################################################################

450768 bytes loaded.
Package validation is OK.
Saving package to "gnssfw"
updater# install -b 115200
Install /home/archangel/spresense/firmware/spresense/loader.espk
|0%-----------------------------50%------------------------------100%|
######################################################################

118832 bytes loaded.
Package validation is OK.
Saving package to "loader"
updater# sync
updater# Restarting the board ...
reboot
:~/spresense/sdk$

Excellent. I vote for source code for dependencies or Raspberry Pi for now.

I will try this hack. Thanks for sharing.

Thanks so much, this helped me resolve issue. Full listing below for anyone that needs it.

CP2102N USB to UART Bridge Controller:

Product ID: 0xea60
Vendor ID: 0x10c4 (Silicon Laboratories, Inc.)
Version: 1.00
Serial Number: 94338051de61e811841[XXXREDACTEDXXX]
Speed: Up to 12 Mb/sec
Manufacturer: Silicon Labs
Location ID: 0x14100000 / 29
Current Available (mA): 500
Current Required (mA): 100
Extra Operating Current (mA): 0

Thank you, I installed a stand alone Linux to avoid Mac OS and VM issues.

After using a new board, everything works as expected. It seems the original board was indeed broken.

@Vraj-Patel said in Using OpenCV on SPresence:

How do I install OpenCV on NuttX? Or how can I compile an OpenCV Program into the SPresense?

Hi @Vraj-Patel

I have not investigated this but I doubt that this would be doable due to memory constraints.
If you investigate this and come to a conclusion I would like to hear about it if you want to share your findings!

@Vraj-Patel said in How do you use the SPresence's Audio Library with the Main Board?:

How I make use of the SPresence's Audio library to record audio with the Main Board? (The documentation only describes the extension board's use) I currently have an electret microphone in one of the GPIO pins and want to record the audio in a MP3 file.

Hi @Vraj-Patel

Unfortunately there are only a few dedicated pins that can be used as microphone inputs. It is not possible to take any GPIO and connect a microphone to it. This is because to use a microphone you need special analogue electronics/amplifiers inside the chip that can read/sense and convert the very weak signals that comes from a microphone.

If you want to use a electret microphone you would either have to use the extension board to connect the mic to or design your own board in a format that suits you.

I would recommend you to have a look and study the the Spresense schematics both for the main and extension board to get an idea of what external components that have been used for the microphone circuitry.
https://github.com/sonydevworld/spresense-hw-design-files

Hope that this can help you coming forward with your project.

@TE-KarlKomierowski Thank you for all your help! Really appreciate it.

Hi Mark,

Unfortunately, the "voice_command" example is no longer available. This has already been reported and the documentation will be corrected. Thank you for finding this.

Best regards,
Kamil

Hi @TE-KarlKomierowski,

Thanks for the answer. I think, I will check what resolution can be achieved with UYVY.

Cheers,
Attila

@cybermah said in GPS not working:

18:39:58

Hi @cybermah
:
Judging from the log you have been running the sketch from 18:39:58 to 18:40:14 which is only a few seconds.
To get the a fix you need to be outside under clear sky and wait longer thand that, maybe a minute or even longer. Depends on the conditions and if you have made a cold start.

Please try this and see if it helps.
BR Karl