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But my question is with that xxxx. Does that mean they are "1111" after reset. I will check in datasheet regarding this.
But if you explain me i will be able to understand more.
Re: Please explain this C code?
I posted previously for AND and OR operation. One senior explained me with this. Here after reset the default was set to "xxxx". After AND operation with "1111", the pin still stays as "xxxx". Could you please explain why.
If we take the constants first:
(3 <<...
Re: Please explain this C code?
What is the initial value of VICIntSelect. As per my understanding with your good example, I should NOT VIC_BIT(VIC_EINT2) and then should perform AND operation with VICIntSelect. So what is the value of VICIntSelect.
I used you ARMwizard tool and it was an...
Re: Please explain this C code?
What is this line mean. Could explain the operation of AND and NOT doing there. Please explain me. I am seeing more lines with AND, OR notations. I couldn't figure out that. Please don't ask me to study C book or work with Turbo C. Please explain what this line...
I got a program with my LPC2148 development kit. The program is for enabling interrupt on the controller. I couldn't understand the following piece of code. Also, the following line, confuses me what is it doing. I have attached the whole program. Please help me what is the line following line...
I have written code in uV4 for LPC2148 and it worked. I want to compile the code in GCC (I have installed GCC tool chain on ubuntu 11.10 and also I have Cygwin with gcc tool chain installed). Could anyone please help me the step by step build process for generating a hex file. I am beginner in...
I am new to linux and i want a compile C programs for my LPC2148 controller. I checked in gcc.gnu.org and they have asked to install cygwin.
Please anyone explain me what are the tools that I have to install on my windows7 PC to compile the C programs. Please provide me elaborate steps...
PINSEL0 = (PINSEL0 & ~(3 << 30)) | (1 << 31);
Could you explain this function. I am little confused how this works. As i told in the thread that i am clear about AND, OR and shift operations. Could you explain this three things or if you give me any references, it is appreciated.
I am sorry i should have mentioned it. I am talking about C only. Please look at the following C code.
#define BUZZER_DIR IO1DIR
#define BUZZER_SET IO1SET
#define BUZZER_CLR IO1CLR
int main()
{
BUZZER_DIR |= BUZZER;
BUZZER_SET |= BUZZER;
BUZZER_CLR |= BUZZER;
}
This code will set Buzzer and...
Hi all,
I know AND, OR and shift function but when it comes into programming, I dont know how to apply them and also where to apply them. I know them in the digital electronics view only and till date I find it hard to understand those concepts. I read that LSL is used for two complement and...
I am happy to answer all your questions but before that the same program worked fine when i used it for Port 0 but when i attempted to change the port to 1, it seems not to work.
Crystal frequency:12Mhz and i am not using the PLL.
I am using Proteus for the simulation.
The below is the...
Hi all,
I am trying to interface to LCD with LPC2134. I have not seeing any output in the LCD. I followed the program posted and I tried to change the ports to 1 but its not working. Please tell me what I did wrong.
P1.16-->RS
P1.17-->En
P1.20 to P1.23--> Data pin 4 to 7
#include<lpc213x.h>...
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