04/13/2021 at 09:25 •
I have just delivered the first beta version of the Windows player software. Just specify the packs path and enjoy :D
The firmware is on the way, the first version should be available in few months.
04/06/2021 at 13:29 •
The Open Story Teller project continues with a major change: we switch the main MCU board from the Arduino MKR to a RISC-V based board from Sipeed : Longan Nano. The MCU is a STM32 clone, the GD32 family.
This change is due to the price of the MKR ; but it can be a reliable solution for another variant of the project. The GD32 is also available with different boards such as a SeeedStudio or Lyligo brand. The SeeedStudio is very nice and has many GPIO : it may be a good candidate for our final product.
As always, the source code is available on github: https://github.com/arabine/risc-v-tutorial
The next part will focus on the display and the buttons!
12/21/2020 at 12:42 •
Thanks to the effort of the community, the last version of the official Lunii which is built using a STM32 micro instead of a Sonix has allowed to find the algorithm used to encode resources files.
I have integrated in the software player, and now the image is displayed correctly!
11/10/2020 at 16:00 •
My tiny mock-up is now nearly complete: I am able to play a music file stored on the SD card.
One bad news: the sound is very very bad, it has many glitches.
I have tried two boards, one with an audio jack output and the other a simple 4 Ohms speaker output. I have the same result, the sound is crappy.
Investigations is on going!
10/30/2020 at 10:59 •
So this week we have chosen the firmware library stack and tested some useful debug tools.
So far, we have now:
- A SWD debugger, a JLink probe and the Ozone tool for visual debugging
- A nice IDE: QtCreator
- A good build-engine: CMake
- A well-tested and simple library: Arduino SAMD21
We have also successfully tested:
- A LED blinky test
- A Serial output (Hello, World) through the USB port
Now, we are prepared to develop the entire application code. We are going to start with the SD-Card reader in the following weeks.