The ans is 3. Subtract it from (FF) hex which comes out to be (FD) hex its 2's complement will be -3 so value taken is negative

@@shrikrishnakolhar9800 sry for that comment if u felt bad ,dnt tk it prsnl .....the comment id for video not on your knowlegde sir.....and thnk u so much for clarification. if u can handle negative comment then u r good to go.

@@shrikrishnakolhar9800 why we are taking this 2 s complement

@@shrikrishnakolhar9800 sir why we are subtracting 3 from FF...and what will happen if we set TH1 with FD..means how will it set the baud rate to 9600

@@darshitgandhi9122 there is no difference between -3 and FD. As shown in the example in video 28800 Hz is divided by 9600 to get TH1 value as -3 or FD hex

No

Because timer counts up and triggers the UART on overflow (FFh to 00h transition). -3 (FDh) means timer will overflow in 3 ticks which divides base uart frequency by 3.

TL is not used in 8 bit mode (TH is used to reuse the 16 bit mode overflow circuitry)

If you want to know about signals and systems in Discrete domain , you can refer this Digital Signal Processing Matlab: ru-vid.com/group/PLjfRmoYoxpNr3w6baU91ZM6QL0obULPig

Yeah they have a lot of good information.

you just write "edit" then the name of the .m file in the command window. lets say you want to name it test1.m, then all you have to do is write "edit test1.m", and matlab will tell you that there is no m file with that name (assuming this the first time you do this), do you want to create it, simply click yes, and you are in test1.m file.