Hello. Sorry for such a long silence. Didn't see your message right away. If you still need it and are interested - my contacts
+38zero9748zero258zero - viber/whatsapp/telegram
mail.usmi.tech(malpa)gmail.com
Added after 12 [minutes]:
I've been busy moving around and making development boards. (there will be more and different types)
Soon it will all be available for purchase.
Added after 1 [hours] 20 [minutes]:
I have my own forum. (see the address and postal address below in the photos.)
(sorry for using a rus hosting server, I'm still looking for cross platform hosting. Later it will have an international domain, hosting and built in translator like on this great Polish radio forum.)
The site is actively developing both software and hardware. there are a very large number of public SDKs out there.
I am mainly concerned only with JL chips,
But there is also software and schemes for other companies. I almost do not deal with them, since I have a priority on JL. but who wants to - I will give everything I need, and I will help in any way I can.
Added after 15 [minutes]:
I am busy designing development boards for different chip series. (at the moment there are about 15 different series of chips, + different form factors.)
Soon it will be put into production and sale.
There is also a database of firmware from original devices.
Individual development under the order is also possible.
On the forum, we freely share various developments,
The commercial part - only the sale of boards, and individual development of programs, well, the base of the original firmware.
Added after 1 [hours] 2 [minutes]:
I will describe the chips a little. There are the simplest ones without bluetooth and in SOP 16 for audio.
There are BLE bluetooth chips without audio, with low consumption, for example for IoT.
There are video codecs, processors. Audio codecs.
I for example use audi direction chips.
For example
**** AC690x Sustem on Chip *******************************************
SOP16-QSSOP24-QFN32-SSOP28-TQFP48
BT4.2 -RX-TX. BLE 4.2+BR+EDR+BLE
CPU - RISC32+DSP 192-240MHz
512-1024KB FLASH+ 128KB RAM
PMU,UART,i2C,i2S,SPI,PAP,PWM,GPIO,ADC,DAC,WDT,USB,SD,AUX,LVD,TOUCH_KEY.
SBC,AAC,MP3,MP2,MP1,WMA,WAV,FLAC,APE,F1A.
Built in Stereo FM Radio. 88.5-108MHz.
****************************************************************************
**** AC692x Sustem on Chip *******************************************
SOP16-QSSOP24-QFN32-SSOP28-TQFP48
BT5.0 -RX-TX. BLE 5.0+BR+EDR+BLE
CPU - RISC32+DSP 192-240MHz
512-1024KB FLASH+ 128KB RAM
PMU,UART,i2C,i2S,SPI,PAP,PWM,GPIO,ADC,DAC,WDT,USB,SD,AUX,LVD,TOUCH_KEY.
MP3,SBC,AAC,WAV,FLAC,APE,WMA,F1A,NWT,AMR,M4A,DTS.
Built in Stereo FM Radio. 88.5-108MHz.
**************************************************************************************
**** AC695x Sustem on Chip *******************************************
SOP16-QSSOP24-QFN20-QFN32-SSOP28-TQFP48
BT5.1 -RX-TX. BLE 5.1+BR+EDR+BLE
CPU - RISC32+DSP 192-480MHz
256-1024KB FLASH+ 128KB RAM
PMU,UART,i2C,i2S,SPI,PAP,PWM,GPIO,ADC,DAC,WDT,USB,SD,AUX,LVD,TOUCH_KEY.
G729,MP3,WMA,WAV,FLAC,APE,M4A,ALAC,AMR,DTS,MIDI,G726,MTY,
Built in Stereo FM Radio. 88.5-108MHz.
Built in Stereo FM Radio TRANSMITTER 88.5-108MHz.
*************************************************************************************************
Added after 36 [minutes]:
There are also schemes and firmware of the original dongle-programmers for self-assembly .. There are also home-made options on different microcontrollers.
I am engaged in reverse engineering (not chips.) of boards and devices. . Even for interest, I etch the case of microcircuits with acid and examine them under a microscope. (there are pictures)))
I also try to adhere to standardization and the maximum possible compatibility and universality.
Well, in short, I was tired, went to rest.