
JL (or maybe something else) misterious branded IC's, what is the ...
Apr 9, 2018 · It has a JL (or π) logo and the chip code is either AS18DHO171 (letter O) or AS18DH0171 (digit 0). The former search string yields some results in Google. - And why has this question been closed? The last paragraph reads like a perfectly clear question to me. \$\endgroup\$ –
integrated circuit - HBQ-i7 Bluetooth Chip Identification - Electrical ...
Jul 27, 2018 · This logo is JL and stands for Jie Li (Electronics). I found JL brand. AC1513CF9J0T 1-06BT. in a very low cost bluetooth mini speaker which did not work when I purchased at HK$20 or US$2.56 for destruction to see whats it has inside. BT may stand for Blue Tooth.
integrated circuit - Indentifying a JL chip in a Bluetooth - Electrical ...
For example, here is a datasheet for the Zh-Jieli JL AC6905A that has a BT 4.2 radio. So these cheap little BT 4.2 gadgets from 2017 onward may have this generic device. It may be that buyers order a specific programming and the actual number JL stamps on the device may be tagged to …
audio - Indentifying a JL chip marked 'EE4222-1BB' - Electrical ...
Aug 23, 2023 · It's possibly a JL (杰理芯片) AC7911BB MCU. The datasheet doesn't say anything about markings, but from what I've seen on other JL ICs, the characters after the dash seem to match with the last characters of the part number. This is the only one I could find that ends with 1BB and is in a QFN48 package.
Can't find the datasheet of cheap Bluetooth audio receiver
The chip says JL AP24186-26A4, but I can't find datasheet anywhere. Every time it takes me to dead end. If someone know about it then please help. Update: Found that it's Bluetooth 5.0 based audio
zynq - Electrical Engineering Stack Exchange
Feb 9, 2025 · In the Vitis Unified IDE (v 2024.2 for me, as opposed to the 'SDK'), which uses System Device Tree, SDT, the XPAR_AXI_GPIO_0_DEVICE_ID is no longer used and is not put in the xparameters.h file by VIVADO.
RS232: How are start/stop bits identified and not in character of …
Dec 21, 2024 · If the line was idle for 10 or more bit times, the first edge is the start bit. If the receiver starts listening in the middle of an ongoing transmission, there is indeed a risk of "false lock" with some data patterns.
What is the difference in RISCV between JAL and JALR?
Mar 15, 2021 · JAL saves the next address (program counter +4) to the destination register, adds the immediate value encoded in the instruction to the program counter, and jumps to that address.
Testing VOH, VOL, VIH, VIL - Electrical Engineering Stack Exchange
Jun 20, 2016 · How would someone test Vih, Vil of an input pin (Or VoH, VoL of output pin) of a SoC. With an inverter, you could easily see the results but with a microcontroller/SoC, it seems difficult without the
flipflop - JK flip flop PRESET and CLEAR function - Electrical ...
Jul 5, 2019 · If Preset and Clear are asynchronous, they will be effective regardless of the state of the clock. If you set "Clear" active, the flip-flop will be cleared immediately regardless of the state of the clock, and will remain clear if the clock changes while Clear is held active.