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I am currently able to change the background of a cell using the following code:

I'd like to ask about the following error. So I've been developing a small BLE app a year ago and successfully managed to implement it. I did not push it to the Google Play store but instead installed it somehow on the Android via usb.

However, now I need to get it back up and running but am facing a plethora of errors.

Consider the following regular expression:

https://regex101.com/r/svOSnY/1

I am trying to match out the memory amount and type form a Laptop HP Chromebook 14 G3 NVIDIA Tegra SOC 4GB DDRL 32GB FLASH 14inch 1366X768 Webcam Chrome OS, only, if it is not followed by an additional thing that looks like a memory amount. I thought that negative lookaheads are for exactly this reason:

(?!\d+\s?(gb|tb)) this is my negative lookahead

As it is applied now:

/(?:\d+)\s?(?:gb|tb)\s?(?:ddrl|ddr2)\s?(?!\d+\s?(gb|tb))/i

the 4gb ddrl part is still matched from my string, even though it is followed by the 32gb part which my negative lookahead should realise. If I change my negative lookahead, to a simple capture group, my regex correctly captures the whole 4gb ddrl 32gb part from the string.

What am I doing wrong?

I have a li-on cell model on simscape. I takes

• Instant Voltage Value [Voltage]
• Full Capacity [Amper Second]
• Initial SOC[%] as input and have outputs:

• Cout : Remaining Capacity [Amper second]
• SOC : Remaining SOC [%]
• "+" and "-" Simscape Electrical Terminal

It works when I connect them in series but when I connect them in parallel it gives me error depicted below. Wat may be the reason? How can I solve that?

Thanks.

Having just recently gotten into embedded programming using PIC microcontrollers, I am trying to understand the difference between Bare metal, RTOS and SoC.

Online searches reveal contradictory definitions and meanings.

For example, Semiengineering state that "An RTOS is code written on bare metal" and arduino.cc state that "If you programming controller without using any [RT]OS it's a bare metal approach".

The implication is that some code written on bare metal can be considered to be RTOS, whilst others may not be.

Therefore, my question is when can embedded programming of microntroollers be considered programming of bare metal and/or RTOS? And where does SoC fit into all of this, if at all?

Any insight that anyone can provide will be very much appreciated!

I have this line of C code from a real time clock (RTC) driver for a SoC chip from Nordic. I tried to look for what it does but it's a bit difficult to search. Can anyone please let me know what does it do? Especially the parentheses and asterisk.

After watching my work folder get cluttered I have moved code files corresponding together into a subfolder. The problem is that the data my program uses is itself placed in a subfolder of the now parent folder. I used pathlib to extract the data from the subdirectories like so:

Disclaimer : I posted for the same issue (with a different point of view) here

I use a SPH0645 I2S microphone with a custom driver.

It seams properly recognized by alsa :

Background:

I have an old Seagate BlackArmor NAS 110 that I'm trying to install Debian on by following the instructions here: https://github.com/hn/seagate-blackarmor-nas.

I have a couple of USB to TTL serial adapters (one FTDI chipset and the other Prolific) that I've tried and have run into the same issue with both. I have made the connection to the serial port on the board of the NAS using a multimeter to make sure I've gotten the pinout correct.

Problem:

I'm not able to stop the autoboot process by pressing keys and any point during the boot process. The device also does not seem to respond to any keystrokes although they are echoed back.

What I've Tried So Far:

• Using USB to TTL serial adapters with two different chipsets
• Using the adapters on two different computers (MacBook Pro and a ThinkPad)
• Using different operating systems (MacOS, Windows 10, Ubuntu 20.04)
• Using different terminal programs (Screen, Minicom, Putty)
• Turned off hardware and software flow control
• Tested output of adapters by shorting RX and TX pins and seeing keystrokes echoed back
• Commands seem to be sent to device as when I type I see my commands echoed back (not sure if this is supposed to happen)

I've been at this for a few days and can't figure it out. I've also recorded my screen while experiencing the issue: https://streamable.com/xl43br. Can anyone see where I'm going wrong?

Terminal output while experiencing the problem: