This repository is mainly a collection of information about this dongle
The AP8224 DAB/DAB+ dongle is a cheap China USB device to receive digital DAB/DAB+ radio. It can be found with different names for example "DAB/DAB + USB-Dongle" at trading platforms e.g. eBay, Amazon or Aliexpress. The dongle provides the audio data via MP3 files on an emulated 172 GB USB drive with the name MP3DAB.
It mainly consist of two chips
-
MVSILICON AP8224C2 MCU with DSP (http://www.elecfans.com/soft/3/2019/20190610953868.html)
-
FCI FC8080 RF tuner and demodulator (https://www.dialog-semiconductor.com/products/connectivity/mobile-tv/RF-BB-SoC-T-DMB-FC8080)
Inside the folder Datasheets you can find the public datasheets. The Chinese AP8224C2 is translated via Google translator.
Sources:
- AP8224C2 http://www.elecfans.com/soft/3/2019/20190610953868.html
- FC8080 http://www.siliconmotion.com/download.php?t=U0wyRnpjMlYwY3k4eU1ERXpMekEyTHpJNEwzQnliMlIxWTNRd01qRXhORGswTWpJNExuQmtaajA5UFVaRE9EQTRNRjlpY21sbFpnPT1D%20FC8080
High resolution pictures can be found inside the folder Pictures.
Front
Back
- Youtube Video (German): https://www.youtube.com/watch?v=iCf-Ks0hFbI
- German discussion https://www.rundfunkforum.de/viewtopic.php?t=56487&start=30#p1507573
| File Name | Meaning |
|---|---|
| StationName.mp3 | Audio stream MP3 coded |
| DAB_BER.TXT | Unknown. In my case a file with zeros |
| DAB_DLS.TXT | Dynamic Label (DLS) |
| DAB_IMG.DAT | Some DAB data. More investigations necessary. |
| DAB_SCAN.CTL | Most likely scan when opening file |
| DAB_UPD.CTL | Unknown action when opening file |
| DAB_VER.TXT | Most likely firmware version |
This is an unsorted list of observations
-
When opening or reading a *.CTL file then an actions is performed
-
Press the button and plug in the dongle. The dongle will detected as DAB_UPDATE USB drive with the following content
-rw-r--r-- 1 albrecht albrecht 14 Apr 1 2019 Bootloader_Ver.txt
-rw-r--r-- 1 albrecht albrecht 8388608 Apr 1 2019 FIRMWARE.BIN
-rw-r--r-- 1 albrecht albrecht 512 Apr 1 2019 Readme.txt
-rw-r--r-- 1 albrecht albrecht 2097152 Apr 1 2019 Update_Done.ctl
- dmesg output
[49793.545497] usb 2-2: new full-speed USB device number 4 using xhci_hcd
[49793.706311] usb 2-2: New USB device found, idVendor=1234, idProduct=1111, bcdDevice= 1.00
[49793.706316] usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[49793.706319] usb 2-2: Product: mvsiicon 026 usb audio
[49793.706322] usb 2-2: Manufacturer: MVSILICON
[49793.706325] usb 2-2: SerialNumber: 20151012
[49793.730735] usb-storage 2-2:1.0: USB Mass Storage device detected
[49793.730878] scsi host3: usb-storage 2-2:1.0
[49793.731018] usbcore: registered new interface driver usb-storage
[49793.733865] usbcore: registered new interface driver uas
[49794.740444] scsi 3:0:0:0: Direct-Access WRADIO DAB Stick V1.0 PQ: 0 ANSI: 2
[49794.741641] sd 3:0:0:0: Attached scsi generic sg2 type 0
[49794.744371] sd 3:0:0:0: [sdc] 335544320 512-byte logical blocks: (172 GB/160 GiB)
[49794.746299] sd 3:0:0:0: [sdc] Write Protect is off
[49794.746302] sd 3:0:0:0: [sdc] Mode Sense: 0b 00 00 08
[49794.748310] sd 3:0:0:0: [sdc] No Caching mode page found
[49794.748315] sd 3:0:0:0: [sdc] Assuming drive cache: write through
[49794.765896] sdc:
[49794.781305] sd 3:0:0:0: [sdc] Attached SCSI removable disk
- Programming most likely via SWD https://www.silabs.com/community/mcu/32-bit/knowledge-base.entry.html/2014/10/21/serial_wire_debugs-
- The MVSILICON website http://www.mvsilicon.com/ doesn't provide any information about the AP8224C2 itself but they provide source code samples, videos and PDF for similar chips
Please send a pull request of you have more information that you will share