Re: [lpc2000] LPC2138 Bootloader Issue
2006-03-01 by Sten
... Hello Tim, I think I know your problem. You are writing that (from t0 on) P0.14 is released after 470ms and /Reset after 820ms? That s simple to explain!
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Re: Bit addressing
2006-03-01 by brendanmurphy37
Before anyone points it out, the line: if (REG(GPIO_IOPIN0 & bit_pos)) should be replaced with: if (REG(GPIO_IOPIN0) & bit_pos) Sorry about this Brendan
Re: Bit addressing
2006-03-01 by brendanmurphy37
This indeed came up a while ago. To recap: The reason bit-fields are a bad idea for hardware register access, is that it is completely undefined in ANSI C as
Open source TCP/IP stack / RTOS for LPC2138
2006-03-01 by householder_lpc
I m trying to build a control platform using a LPC2138 processor. Is there any open source TCP/IP stack and RTOS available which can be used? I came across
Re[4]: [lpc2000] Re: Bit addressing
2006-03-01 by Alexey Bishletov
... I agree, it should be tested. IAR uses operations according to bit field type, GCC shorten to byte. IAR acceptable. ... My variant uses the same register
Re: Bit addressing
2006-03-01 by nagarkarajay
My 2 cents: Mukund, Unfortunately there is seperate control over set and clear of GPIO in the LPC 2XXX .. my initial guess is that this is not slam dunk as you
Re: Bit addressing
2006-03-01 by Steve Franks
Hi, First, I think this topic was hashed over a bit awhile back, you might do a search of the archives for more info. IAR uses the following in their include
LPC2138 Bootloader Issue
2006-03-01 by tah2k
Hi All- I m currently experiencing a very frustrating issue with the LPC2138 bootloader. I can successfully and reliably use the Philips flash utility to
Re: [lpc2000] Re: Bit addressing
2006-03-01 by 42Bastian Schick
... Correct. gcc tries to optimize accesses, so if you have a register which must be read/writen as 32bits, bitfields fail for this. Other compiler read/write
Loop Backing CAN Connector
2006-03-01 by majid_mokhtari
Hi everybody, I want to loopback CAN connectors of KEIL MCB2100 . Do I need to add terminator resistors ? Any information in how to do that is welcomed. TIA
Flash Downloading with CrossStudio
2006-03-01 by timothymarknorton
Hi All, I am new to ARM and currently working on a design that uses and LPC2131. I am using CrossStudio and having some problems. When I start debugging it
Re: Re[2]: [lpc2000] Re: Bit addressing
2006-03-01 by Robert Adsett
... Not portable even between compilers. For non-I/O code this is just fine but for operations involving I/O this may produce unexpected results. IE the
Re: [lpc2000] Re: Bit addressing
2006-03-01 by Richard Duits
Be carefull with bit fields larger then 8 bits, because they do not work the same on all compilers. Check you assembler listing to see if the compiler
Re[2]: [lpc2000] Re: Bit addressing
2006-03-01 by Alexey Bishletov
... typedef struct { unsigned long n0:1; unsigned long n1:1; unsigned long n2:1; unsigned long n3:1; unsigned long n4:1; unsigned long n5:1; unsigned long
Re: [lpc2000] Re: Bit addressing
2006-03-01 by Mukund Deshmukh
Thanks for the mail. I am porting huge code from 8052 involving lots of port and bit variable. I just want to know how a pin/bit is defined in header file of
Re: [lpc2000] Re: ARM core forum
2006-03-01 by N S
My $0.02: Why does someone who loves newsgroups and mailing list always get offended when someone fills the niche of a forum? I personally prefer Forums for
Re: Bit addressing
2006-03-01 by Guillermo Prandi
In LPC21xx, GPIO SET/CLR registers are designed so you don t need to read them in order to set/clear the corresponding GPIO bits: GPIO0_IOSET |= (1
Re: [lpc2000] Bit addressing
2006-03-01 by Mukund Deshmukh
Thanks for the reply. As I am transferring my C51 source to Arm, I wanted something as simple as Some_io_port_0.15=1 So that I define only Some_io_port and my
RE: [lpc2000] Re: VPBDIV register
2006-03-01 by Joel Winarske
Hi Roger, ... USB peripheral powered off: 10MHz minimum USB peripheral powered on: 18MHz minimum Section 14.6.2 in the User Manual: 14.6.2 Register Map The
Re: abusive comments
2006-03-01 by roger_lynx
... The MSP430 ... there, as ... Hello Leon, Things tend to run in cycles. This particular one has not aged enough to satisfy Godwin Law.
Re: VPBDIV register
2006-03-01 by roger_lynx
Hello Joel, From my reading of pg. 33 of UM LPC214x (below), I concluded the core can be driven with minimum frequency FOSC=12 MHz (with M=4 and VBPDIV=1 (i.e.
Re: [lpc2000] Bit addressing
2006-03-01 by Boris Králik
OH, sorry. Port operations: GPIO0_IOSET |= (1 15) & 0x1); //Read ... Regards / S pozdravom Boris Kralik
Re: [lpc2000] Still trying UART0 Interrupts - almost there
2006-03-01 by Saravanakumar S
Hi , Can you tell me your requirement. I think in all the examples,they clearly explained every thing.If you tell your requirement then i can help
Re: [lpc2000] Bit addressing
2006-03-01 by Boris Králik
var |= (1
Re: [lpc2000] Bit addressing
2006-03-01 by Saravanakumar S
Hi, The same question i asked 2months before .Also, i asked last week to this forum.But all the pupils are busy with Jaysooriah question. They didnt have much
Re: [lpc2000] problems with programs larger than 4K with Keil MCB2140
2006-03-01 by Saravanakumar S
Hi , If you are using the Keil Evalution version,then Code limit is only 16k. Up to 16k you can you can use the Keil compiler.It is very easy to see Program
Bit addressing
2006-03-01 by Mukund Deshmukh
Hi, A stupid question... I am used C51 and like bit addressing in C , but in LPC its not possible. 1. Is there any way I can read or write a port bit by
Re: ARM core forum
2006-03-01 by Peter Jakacki
... gradoj or whoever you are. If you had started off your announcement with what you have just said you would at least be taken for someone sincere. However,
Re: [lpc2000] Re: ARM core forum
2006-03-01 by Landrum Haddix
Folks, At the risk of being fomenting unrest and the ensuing results... What s wrong with letting members decide what information they wish to look at on their
Re: ARM core forum
2006-03-01 by donhamilton2002
... processors. ... peoples personal ... I always think of something better after I hit send. Reading over gradoj1 last post, I realised that if he would have
Re: [lpc2000] Re: ARM core forum
2006-03-01 by groups@homanndesigns.com
Hamilton, I m fairly sure he was taling about future emails. There s nothing smart, cute or ethical about publishing other peoples personal contact details on
Re: Olimex LPC-H2138, need help
2006-03-01 by Sutton Mehaffey
I was told by Keil that the Flash Utility wouldn t work with their 2140 and 2130 eval boards with a serial-USB adapter. I don t know about the Olimex board.
Re: ARM core forum
2006-03-01 by donhamilton2002
... There are 3181 addresses on this list. Should we all delete your messages and pretend there is noone behind the curtain. hamilton
Olimex LPC-H2138, need help
2006-03-01 by George_Yeoh
I was trying to upload into flash from Philips Flash Utility software, and it always complaints that the board coul not be connected. I have tested the serial
Re: ARM core forum
2006-03-01 by gradoj1
... lend ... Since anyone can find this information for themselves I would appreciate it if you would remove it from your post. To answer your question I am an
Re: LPC2138 Socket
2006-03-01 by arm7dude
Tim, Yamaichi makes sockets for test/burn in and production. Check www.yamaichi.com. Hopefully the watch dog timer response will fix your problem. Ed
Re: device ID for 213x and 214x
2006-03-01 by rtstofer
... Maybe their apps people will weigh in on this. I thought it was just the samples issue but I haven t pursued in the manuals. My next project will be
Re: device ID for 213x and 214x
2006-03-01 by arm7dude
Richard, Thanks, I ll look in the archives. Maybe Philips changed their mind as the user manuals for the 213x and 214x list the IDs as the same.
Still trying UART0 Interrupts - almost there
2006-02-28 by f lee
I ve spent a lot of time trying to get this UART Interrupt to work. Not enough I suppose. What have I missed? This is written for the OLIMEX 2148 compiles
Re: VPBDIV register
2006-02-28 by lpc2100_fan
It is the USB that needs a minimum of 18 MHz, not the core. The core can run at 1 MHz, the PLL needs a minimum of 10 MHz and the USB perpheral needs a minimum
RE: [lpc2000] Re: VPBDIV register
2006-02-28 by Joel Winarske
... Yes, see my follow-up post. The 18MHz minimum only applies if USB peripheral is used. Joel
Re: [lpc2000] type cast in GCC
2006-02-28 by nic@weartronics.com
Hi Dmitry, Thanks, this makes some sense now. I wish Keil had documented the __packed better (I looked at the manual on their web site but it doesn t discuss a
Re: VPBDIV register
2006-02-28 by Guillermo Prandi
I can find where in the LPC214x user s manual says that the minimum clock is 18 MHz. It says 10 MHz. Perhaps you were talking about using the USB periferal?
Re: LPC2138 Socket
2006-02-28 by Guillermo Prandi
Perhaps you re experimenting the same issue I had recently: the watchdog was keeping me from accessing the ISP. To solve it I had to make sure the reset and
Re: [lpc2000] Re: Time to stop
2006-02-28 by Landrum Haddix
... I like the circus, but the ponies often smell very bad. In the 6-8 months I ve been monitoring I ve seen a few useful posts. If all else fails it can be a
Re: [lpc2000] Re: re lpc2100_fan's objection to CRP thread
2006-02-28 by Dominic Rath
Hello John, Sorry if I misinterpreted what you wanted to claim with fact 2 , but I m still having trouble understanding what you mean. Actually, both 1 and 2
Re: VPBDIV register
2006-02-28 by Sutton Mehaffey
Bertrik, Thanks. The feed sequence solved the problem. Sutton
RE: [lpc2000] VPBDIV register
2006-02-28 by Joel Winarske
... It s not much of a concern for the LPC214x if you are using the USB peripheral since core needs to run at minimum 18MHz, but may be an issue on the
Re: [lpc2000] Re: re lpc2100_fan's objection to CRP thread
2006-02-28 by mfrazier@governors-america.com
Again it s time to stop...take your own advice about self proclaimed experts!! [Non-text portions of this message have been removed]
RE: [lpc2000] VPBDIV register
2006-02-28 by Joel Winarske
... I referenced errors regarding this equation when I posted my fractional divider utility a good while back. There are also some errors in the %error