electrojit / blueboard-lpc214x Goto Github PK

Hello all
I have just ordered a blueboard which should reach me in the next 2 days. It 
did not strike me at first but now i am having concerns regarding my OS. I have 
started using windows 7 from last month. Will this cause any problem while 
installing programs and other stuff like USB drivers for the blueboard? Or 
create errors while building the code? Previously i used to work on WinXP SP2, 
but now i have got a laptop with Windows 7. 

Thank you in advance
Regards
Mayuresh

I was trying to increment a global variable inside an interrupt service routine 
but i found after returning from interrupt service routine the global variable 
was restored to previous value .
I tried declaring the global variable as volatile but it is not giving any 
effect.

I am using code sourcery tool chain for compiling the code.

*** What steps will reproduce the problem?
1. Use *nix environment
2. Go to Sources/GCC
3. Run "make"

*** What is the expected output? What do you see instead?
Expected: code compiles without errors.
Current: lots of errors related with not found files (names are correct but
letter casing differs).

*** What version of the product are you using? On what operating system?
Operating system: Linux Ubuntu 10.04, GCC (ARM) 4.4.4.

*** Please provide any additional information below.
Proposed fix: make all files have the same name across whole package.

if anyone has tried keil3 ide for arm, if so please upload the files

thanx
ashok

we executed keilsamplecode for usb which asks for installing the driver(for
the new hardware found) so what will u recommend us so that we can do our
project that is PS2(keyboard) TO USB TRANSIMISSION 

Please reply asap.




Thanks,
Devashri.

hello all,

i have purchased a new blue board & when ever i download any hex file into the 
blue board, it doesn't work accordingly & even any sample code also not working 
in that....

can anybody help me Plz?????? 

Hi are ther other that are missing :

1) drawing with all the Jumpers _ so you do not have to read on the board 
itself.

2) a list of ports and memory areas, I know it is in the 2148 ARM manual but it 
is 100+ pages.

3) a description on how to write on the display, and how to make sound and how 
to use I/O pins, 

I know it is all in in the Arm manual, but if ayone has made this I'd be happy 
to get a copy :-)  to [email protected]

if not I may make it 

Can any linux based rtos (or linux kernel)be ported to LPC2148 blueboard or is 
it that it can only be ported to ARM9 boards (I am specific about Linux based 
RTOS, cos i know some RTOS like uC/OS, eCOS can be ported). If yes, what are 
the requirements? What are the readily available RTOS that can be ported to 
LPC2148 board. Can OSEK be ported to this board?

Thank you

when i click on "Make All" command . i m getting below output . is it the 
output should i get ? this is the sample programm from Examples.
what o/p should i get. 

pls help.



///////////        o/p window       ///////////////


Creating load file for Flash: ledswitch.hex
arm-elf-objcopy -O ihex ledswitch.elf ledswitch.hex

You may have to bring the target in bootloader-mode now.
lpc21isp -control  ledswitch.hex com1 115200 14746
lpc21isp version 1.31
File ledswitch.hex:
    loaded...
    converted to binary format...
    image size : 476
Synchronizing...................................................................
................................. no answer on '?'
C:\WinARM\WinARM\utils\bin\make.exe: *** [program] Error 4

> Process Exit Code: 2
> Time Taken: 01:31

Hi there,

which is the max. quality for the LPC2148, 44khz?, 32khz?, 22khz?. How 
about external RC-Filter? Which parameters do I have to change in the 
source code w/o RTOS? Thanks in advance.

BR

erkan

It has been observed on few boards that the write operation on the AT24C256
(256kB Atmel Flash) is inconsistent. The read-operation seems to work fine.
The exact technical explanation for this behavior is still not known. We
are working on a solution for this issue and are hopeful that we will be
able to resolve it as early and possible and also suggest some work around
for the existing customers.

It has now been documented in the UserManualV1.2 for the Blueboard, while
we continue to look into this issue, it would be really nice if someone in
the group with sufficient I2C experience throws some light in this matter.

Problem details and other observations:

1. We have been using i2c_master_read(), function to check the presence of
I2C eeprom. The theory is that if this function returns '1', then it
implies that the eeprom is detected.

Observations:
-------------
When the SLAVE address is changed in the firmware; the i2c_master_read()
function returns error; i.e. if the address is changed from 0xA0 to 0xB0
the function returns error.

2. A proper test for I2C eeprom would be to write a known set of data and
then read and confirm if the data matches. This test seems to fail of few
random boards.

3. On some boards the read/write operation works fine.

4. Some observations have led us to conclude that the Atmel part might have
been faulty; but its not very conclusive.

5. The I2C line pull ups are 2.2K, changing them to 10K has had no positive
impact.

6. The voltages measured across all the pins on the eeprom seem to be fine.


-Ashwin

I have installed codeblock and toolchains from downloads sections, How to
use code blocks IDE and simulate/debug my programs for BlueBoard??

Project:Interface VGA with LPC2148 using Keil3version 

How to compile vga_main.c (attached below)
1. Target not created
2. v2.axf:Error: L6218E:Undefined symbol tn_cpu_restore_sr(referred from
hardware.o)
3.v2.axf:Error: L6218E:Undefined symbol tn_cpu_save_sr(referred from
hardware.o)
Were the errors occured during compiling on Keil

Operating system used is WindowsXP

Please give us the procedure for compiling our VGA code which is taken from
Blueboard site-(Complete Project Without RTOS )

I am trying to set up a DMX-512 receiver using the LPC2148 Blueboard. I am 
using the application note AN10717 (http://www.nxp.com/documents/applicatio ... 
N10717.pdf  or see the attachment) from NXP as reference. In this AN, the 
receiver is based on LPC2103. I ported the code to the LPC2148 (hardly needed 
any changes as all the SFR names are the same, I just changed the channel 
number which is to be outputed). Also I made the schematics as shown in the AN. 

But when I connect a DMX-512 transmitter (4 channel lighting control deck) to 
the receiver, it doesnt function as expected. Later I modified the code in the 
main loop so that the channel values received are sent to the PC through the 
other UART and I observed them on TeraTerm terminal. I saw that the channel I 
am trying to output shows random spurious values. It ranges from 128(min) and 
188(max). It should be ideally 0(min) to 255(max) according to the protocol. 

I dont understand what could be the problem? Is it a hardware problem (on the 
RS485 chip side)? Or is it a software fault? 

Please help me this is URGENT. I need to get it started in 1 week. Thanks in 
Advance.

Regards,
Mayuresh

What steps will reproduce the problem?
1. Replacement
2. Replacement of Both Hardware
3. Alternative.

What is the expected output? What do you see instead?
Debugging the Program.
Cannot Identify Target. Check JTAG connections and that the target is powered.
I tried as per the Manual but i cant able to find the solution. I have changed 
3 JTAG Cables, all are New Only.

What version of the product are you using? On what operating system?
NGX LPC2148 Blueboard
NGX ARM USB JTAG
Windows XP SP3
ROWLEY CROSS WORKS

Please provide any additional information below.

 We compiled keil PS/2 code using Makefile given in 23_ps2.zip attachment below
we got correct output but would hang after accepting 10 input key.

We want to compile PS/2 code & SD card together using Makefile
When we compilled error occured was ISR routine (used in keyboard program)
cannot be executed in THUmb mode -SD_Key.zip

We are working on WindowsXP,using ARM- lpc2148 blueboard
Code are taken from blueboard site.




Please provide any additional information below.

We compiled Blueboardsources program for transmitting data from keyboard to
to lcd/uart using arm-elf-gcc(on windows),Retarget.c file gave
error-rt_misc.h file not found. Where to we get file from?

Can I use FlashMagic to load the hex over the USB port? 
when I open hyperterminal I see:

 Testing USB NGX's BlueBoard
 BlueBoard Revision : 1
 Firmware Version: 1
 For more information on BlueBoard visit www.ngxtechnologies.com

but I get a "failed to autobaud" in FlashMagic
(http://forum.flashmagictool.com/index.php?topic=3628.0)
If not I guess I have to dig up a rs232 cable to connect to com1. A lot of
PCs dont have serial ports anymore. 

1.we executed (using keil 3)blueboard sources ps2kbd program on lcd and got
output correctly, but when tried on uart letters were corrupted.
What do we require to do proper transmission from keyboard to uart.
2.We are using arm-elf-gcc compiler,we compiled the above program ,but got
error .What toolschain or libraries would be required to compile
BlueboardSources progarms on lpc2148

1.We executed (using keil 3)blueboard sources ps2kbd program on lcd and got
output correctly.When tried on Keil then uart transmission was correct but
same when burned on LPC2148 blueboard using Flash ,the output on
hyperterminal was corrupted .
What do we require to do proper transmission from keyboard to uart.
2.We are using arm-elf-gcc compiler,we compiled the above program ,but got
error .What toolschain or libraries would be required to compile
BlueboardSources progarms on lpc2148