Discussion in "ARM Development" started by    diana1234    May 28, 2015.
Thu May 28 2015, 11:15 AM
#1
Hello there,

I am using a MCU LPC2468/78 and in its datasheet or user manual i noticed that some of chip functions are also repeated at some other pins of MCU, for example

P0[0]/RD1/TXD3/SDA1 , P0[1]/TD1/RXD3/SCL1 and
P0[25]/AD0[2]/I2SRX_SDA/TXD3 , P0[26]/AD0[3]/AOUT/RXD3 and
P4[28]/BLS2/MAT2[0]/TXD3 , P4[29]/BLS3/MAT2[1]/RXD3


In the above three different port pins there is repeated TXD3 fucnction and in the other 3 pairs there is repeated RXD3 function.
Please tell is these are different functions or the same fuction which i can use from any one of above 3 port pins.

In my understanding, i am assuming it as -
If a programmer is using I2C function from pins P0[0] and P0[1] then UART3 function is restricted to him from that pair of pins, in that case he can use the UART3 function from the remaining 2 pair of port pins.
Am I right or wrong?
Please give some light on this topic!

Thank you
Fri May 29 2015, 08:56 PM
#2


P0[0]/RD1/TXD3/SDA1 , P0[1]/TD1/RXD3/SCL1 and
P0[25]/AD0[2]/I2SRX_SDA/TXD3 , P0[26]/AD0[3]/AOUT/RXD3 and
P4[28]/BLS2/MAT2[0]/TXD3 , P4[29]/BLS3/MAT2[1]/RXD3


In the above three different port pins there is repeated TXD3 function and in the other 3 pairs there is repeated RXD3 function.
Please tell is these are different functions or the same function.

diana1234



As you say,these are the same functions available
from any one of above 3 port pins.


If a programmer is using I2C function from pins P0[0] and P0[1] then UART3 function is restricted to him from that pair of pins, in that case he can use the UART3 function from the remaining 2 pair of port pins.
Am I right or wrong?

diana1234


I would say you are right.
 diana1234 like this.
Sat May 30 2015, 11:40 AM
#3
Thank you ExperimentarUK

Also please tell me how i can measure current flowing in any one of the load portion of the circuit(if there are diferent loads in the circuit) thrugh an ADC chennel.
If through a sensing resister, then how and where i can introduce that resister in the circuit.

Thank you once again
Tue Jun 02 2015, 08:30 PM
#4


If through a sensing resister, then how and where i can introduce that resister in the circuit.

diana1234


That depends on the circuit.
You will have to post your circuit.

Get Social

Information

Powered by e107 Forum System

Conversation

Tue Jan 14 2020, 07:08 AM
shubham kharade
when i am trying to simulate the program in Proteus 8 professional, I am getting some errors as cannot find module file dhtxx.md can u help me
Tue Dec 17 2019, 01:44 PM
Devangi
hello..i am programming industrial timer using 8051 with 24lc64 eeprom. i have query in storing the 3 diff value in eeprom with enter button. can anyone share c code ?
Tue Dec 17 2019, 10:30 AM
Andrius
Hello. Can anyone share the code in Bascon and scheme in Proteus?
Thu Nov 21 2019, 12:30 PM
raj2555
how to interface 8051 microcontroller with NRF24L01+ module
ExperimenterUK
Sat Oct 12 2019, 10:23 PM
Log in.. then post your code in the 8051 forum
Sat Oct 12 2019, 10:18 AM
Bhadra Sajikumar
i am doing a countdown timer with 8051 for my project, unfortunately our professor had to take a leave of absence before he could teach us most of it.. can someone explain the .asm code of it for me?
Mon Sep 23 2019, 07:37 AM
Nathaniel
I am doing a project for my schools wireless security system with cameras,sensors and spot lights using 8051 micro controller, could you help me out with the design and its source code.
Wed Sep 18 2019, 08:48 PM
Caryn Kover
Thank you for your time,
ExperimenterUK
Mon Aug 05 2019, 07:09 PM
@Ismail ..post in forum, give details
Mon Aug 05 2019, 04:33 PM
Ismail balghmi
Hello. Please I won't download

Downloads

Comments

usb5962
Sat Jan 11 2020, 10:42 AM
elt
Tue Jan 07 2020, 06:53 PM
mg3914697
Tue Jan 07 2020, 12:42 PM
afds43
Sun Dec 29 2019, 05:54 AM
Rupeshpatil
Fri Dec 27 2019, 06:14 PM
pyxus
Sat Dec 14 2019, 12:31 PM
Istika
Thu Dec 12 2019, 12:04 PM
nabiha_anaya
Sun Dec 08 2019, 09:16 AM

Online

Guests: 31, Members: 0 ...

most ever online: 182184
(Members: , Guests: 182184) on 06 Aug 2010: 05:37 AM

Members: 38115
Newest member: usb5962
Forum Activity
Billz Avatar
Posted By Billz
Sat Jan 11 2020, 05:43 PM
hi everyone please attached files are my c code fo...
ExperimenterUK Avatar
Posted By ExperimenterUK
Tue Jan 07 2020, 08:18 PM
Not a stupid question.Setting up "Eclipse" can be...
elt Avatar
Posted By elt
Tue Jan 07 2020, 07:06 PM
So i have just began learning programming micros a...
Billz Avatar
Posted By Billz
Mon Jan 06 2020, 09:22 PM
I think it would be better if you guys try to come...
ExperimenterUK Avatar
Posted By ExperimenterUK
Mon Jan 06 2020, 12:22 AM
Can you post a circuit diagram and any code you ha...
Billz Avatar
Posted By Billz
Sun Jan 05 2020, 08:17 PM
Need help regarding C code (specifically for PIC 1...
ExperimenterUK Avatar
Posted By ExperimenterUK
Mon Dec 30 2019, 06:42 PM
Can you give more details of your problem.
Rupeshpatil Avatar
Posted By Rupeshpatil
Fri Dec 27 2019, 06:21 PM
How to copy program my old microcontroller to new ...
ilylily07 Avatar
Posted By ilylily07
Thu Dec 12 2019, 02:26 PM
wil do.thank you for your advice!
ExperimenterUK Avatar
Posted By ExperimenterUK
Thu Dec 12 2019, 07:13 AM
Something like this ?https://www.bing.com/videos/s...