welcome to ~uratan.

- Sun Dec 15 22:33:25 JST 2024 -

(if you tell me that you came here, I will increase the number :)

(2018.8.2)

* recommendation of use of md5 sum

(2024.4.12)

* my winter life with the HIBACHI

(2024.11.29)

* Packets Across the Pacific Ocean ... Memories of my bigNEWS

(2023.10.1)

* govern IrfanView thru i_view32.ini

(2024.9.7)

* Secret of a cigaret

(2024.12.15)

* Why my room is full of dust ?

(2021.3.13)

* How to solder 0.5mm pitch QFP

(2014.9.13)

* Do use vim

(2015.7.25)

* try X-MOUSE on Windows

(2014.10.2)

* Be conscious of the 'Cycle' in the software

(2015.2.11)

* sleeping FreeBSD server (just before 4th Generation)

(2024.6.2)

* Still like 'pnmscale'

(2024.2.4)

* about sub-second timestamp on FFS

(2023.5.27)

* make backup of CF-J10V by FreeBSD

(2022.9.10)

* boot process of FreeBSD/i386

(2011.11.21)

* make backup of CF-R5 by FreeBSD

(2007.7.3)

µcomJOCKEY just begun

(2016.10.15)

      check it

(2016.11.16)

misc logic signal tricks by LPC810   (2016.9.4)

play with it

(2014.1.11)

  I will    

(2013.3.7)

* freecell game collection

(2012.6.12)

* power consumption amount investigation

(2016.8.11)

* drive pattern of some motor driver

(2010.10.12)

* remote-controller IR signals

(2014.7.5)

(2010.8.1)

Which color C code is your C code at which you are looking ?
    ()

(2014.5.20)

* see here

(2016.9.25)

(2010.4.13)

a report has been made.

(2009.3.31)

This is ArmUZK, UZK on NXP LPC214x.

(2014.4.4)

... was supposed to take over by this (2023.6.9)

  (anim)

(2008.7.21)

(2005.9.26)

an extra one by MINI EZ-USB ... (2010.9.10)
and a JTAG-writer for Xilinx devices is here (2005.1.13)
and an experiment for USB audio is here (2005.9.19)

was my motorcycle. you can see the history of my ZZ-Rs.

(2021.9.07)        

click the picture, you can see big sized one.

XENON-80 is Z-80A based hand-made microcomputer.                   Do you see more ?

(2019.12.30)

I had found *experimentally* that
there are difference about the handling of "CTS"
in Intel i8251A and NEC uPD8251A.

i.e.

  if "CTS (Clear To Send)" negation is occurred while sending,
  Intel i8251A *re*-send the data automatically *again*
  after next "CTS" assertion.
 

Is this specification of Intel i8251A ?

!= ?

(1999.3.9)

(2007.3.27)  I've got both 8251 datasheet from Alldatasheet.com and found a hint !

 
  (Copyright by LiveArt ? thanks)
it was me, about 40 years ago.