LPC2148 ARM7TMDI based microcontroller

[vead]

I want to start work with LPC148 Microcontroller. I have downloaded datasheet and started reading. LPC2148 is 32 bit microcontroller from ARM-7 family. It has 32 to 512KB of internal flash program memory and 32 to 8K of internal Data memory. We can use Keil compiler to develop program. I am using LPC148 Microcontroller which is manufactured by Philips. We can use Flash magic tool for burning files. Flash magic is a software tool used for burning the .hex files to NXP Controllers.

I am confuse on following features

2.1 Key features
■ In-System Programming/In-Application Programming (ISP/IAP) via on-chip boot loader
software. Single flash sector or full chip erase in 400 ms and programming of
256 bytes in 1 ms.

■ USB 2.0 Full-speed compliant device controller with 2 kB of endpoint RAM.
In addition, the LPC2146/48 provides 8 kB of on-chip RAM accessible to USB by DMA.

generally I have seen any micro-controller require hardware chip or burner circuit to program microcontroller. Is burner circuit inbuilt in LPC148 that's why we call it In-System Programming.

Please tell me what's the use of these two features

 

[Harald Kapp]

In system programming means that the controller can be programmed while it is mounted within the system it is meant to operate. A few pins a normally reserved for this purpose. These pins need to be connected to a programmer which in turn connects to a pc to download the program.
If teh controller has a bootloader, programming may even be performed using a serial interface, e.g. USB. Arduinos for example can be programmed this way.

To get started with a new microcontroller I recommend you get an evaluation or development board. This will have the necessary environment for teh contrller already installed (e.g. power supply regulator, quartz oscilator, serial interface etc.)

 

[vead]

In system programming means that the controller can be programmed while it is mounted within the system it is meant to operate. A few pins a normally reserved for this purpose. These pins need to be connected to a programmer which in turn connects to a pc to download the program.
If teh controller has a bootloader, programming may even be performed using a serial interface, e.g. USB. Arduinos for example can be programmed this way.

Does LPC148 has inbuilt programmer circuit on chip or LPC148 has additional programmer chip on development board.

I have never worked with Arduinos but I think everything is there on same board. we just connect Arduinos board to PC and then open Arduinos IDE, we write program and upload the sketch

 

[Harald Kapp]

The datasheet you posted states:

In-System Programming/In-Application Programming (ISP/IAP) via on-chip boot loader software. Single flash sector or full chip erase in 400 ms and programming of 256 bytes in 1 ms

So it's on chip.

 

[vead]

The datasheet you posted states:
So it's on chip.

■ EmbeddedICE RT and Embedded Trace interfaces offer real-time debugging with the
on-chip RealMonitor software and high-speed tracing of instruction execution.
■ USB 2.0 Full-speed compliant device controller with 2 kB of endpoint RAM.
In addition, the LPC2146/48 provides 8 kB of on-chip RAM accessible to USB by DMA.
■ One or two (LPC2141/42 vs. LPC2144/46/48) 10-bit ADCs provide a total of 6/14
analog inputs, with conversion times as low as 2.44 μs per channel.
■ Single 10-bit DAC provides variable analog output (LPC2142/44/46/48 only).
■ Two 32-bit timers/external event counters (with four capture and four compare
channels each), PWM unit (six outputs) and watchdog.
■ Low power Real-Time Clock (RTC) with independent power and 32 kHz clock input.

Does it means LPC148 has inbuilt Peripherals such as RTC ADC / DAC, Timer, PWM, RTC, UART..etc

LPC148 support protocols such as I2C, SPI, CAN UART and USB

 

[Harald Kapp]

Obviously...

 

[vead]

Obviously...

Hello
I just tried to write first program and I have written following program. I have compiled program with no errors

#include <LPC213X.H>

void delay(unsigned int wait);

void delay(unsigned int wait)
{
    unsigned i;
    for( i = 0; i < wait; i++)
    {
           }
}

int main (void)
{
        IODIR0 = 0x000000FF;         //Port-0.0 to Port-0.7 pins as Output Pin
   
    while (1)
       
     {
             IOSET0 = 0x000000FF;             //P0.0 to P0.7 are high
       
           delay(5000);
         
           IOCLR0 = 0x000000FF;            //P0.0 to P0.7 are low
     
              delay(2000);
     }
   
 }

I am working with simulation software



I have run code on simulator but the led is not blinking on simulator so I am trying to figure out what could be possible errors.

Do you find anything wrong in program and led pin connection