Re: Flash Security Clarification --- some sad facts
2005-12-26 by jayasooriah
Robert, what I am doing is exactly that -- sharing experiences. Not sure why you seem to want to quench the discussion on CRP and security.
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Re: Flash Security Clarification --- some sad facts
2005-12-26 by rtstofer
... This is a lightweight forum, hardly the place to get definitive answers. Just a bunch of guys, hanging around on Yahoo! sharing experiences. Some stuff
Re: Flash Security Clarification --- some sad facts
2005-12-26 by jayasooriah
Dear Richard, The discussion on CRP is for all in this forum who are interested in this feature It is not unreasonable to question the veracity of CRP claims.
Re: Flash Security Clarification --- some sad facts
2005-12-25 by rtstofer
... Stipulated that LPC won t meet your needs. Now are we done? Richard
Re: Flash Security Clarification --- some sad facts
2005-12-25 by jayasooriah
Reasonable questions. Here are my answers. a) No. The documentation is quite clear on what you cannot do to defeat code security for ATMEL AVR. AVR has the
Re: Flash Security Clarification --- some sad facts
2005-12-25 by jayasooriah
Dear Dominic, How do you know that the supplied boot loader is free of bugs? Have you inspected the source and/or tested the binaries? IMHO you cannot say it
Re: Flash Security Clarification --- some sad facts
2005-12-25 by jayasooriah
Dear Richard, IMHO you are not being security conscious. It would be wise check if you boot loader has a T command, and what it does. Jaya
Re: Flash Security Clarification --- some sad facts
2005-12-25 by jayasooriah
The location FMDEV[9] (at 0x3fff8024) contains the flash lock bits. Writing 0xffffffff to it locks all sectors from write or erase. ... no matter
Re: [lpc2000] Flash File System
2005-12-25 by bertrik@zonnet.nl
... Check out the embedded file systems project on sourceforge http://sourceforge.net/projects/efsl Version 0.2.5 stable already has a port for the LPC made
Re: Flash Security Clarification --- some sad facts
2005-12-25 by rtstofer
... they may be ... thing by ... what makes ... limited. Given the ... bootloader ... content, too. ... disabled ... device (TMS ... the pulses ... until about
Re: [lpc2000] Re: Flash Security Clarification --- some sad facts
2005-12-25 by Dominic Rath
Just because Philips says something doesn t mean that it s true - they may be holding information back, for whatever reason. This isn t a bad thing by itself.
Re: Flash Security Clarification --- some sad facts
2005-12-25 by rtstofer
Seems to me there is a whole lot of guessing going on with not one reproducible example of CRP failing for those versions in which CRP was implemented. Philips
Re: [lpc2000] Re: Flash Security Clarification --- some sad facts
2005-12-25 by Dominic Rath
... The manual says that PINSEL2 bit 2 is determined by the state of RTCK, and the bootloader behaves as if this is correct. It clears bits 0 to 2 very early,
Re: Flash Security Clarification --- some sad facts
2005-12-25 by philips_apps
Boundary Scan is not just a technique, it needs to be implemented in hardware as such AND IT IS NOT IMPLEMENTED on the devices on the market so far. Robert ...
Re: [lpc2000] Flash File System
2005-12-25 by Tom Walsh
... Yes, I am doing this with an SD card on the SPI bus. The sources are available for a FAT16 filesystem is at:
Flash File System
2005-12-25 by mucko
Hi! For my designed hardware i want to make some storage through an SPI bus to an external flash chip.For this purpose is there any file system that can be
Re: Flash Security Clarification --- some sad facts
2005-12-25 by jayasooriah
Dave, One poster on another forum says what client claims: http://www.embeddedrelated.com/groups/lpc2000/show/2534.php Major manufactures surely can get them,
Re: Flash Security Clarification --- some sad facts
2005-12-25 by unity0724
Ummm.... So far... I ve confidence that Philips CRP is secure and hack-proof. a) Hacking LPC2xxx by JTAG boundary scan. - Cannot answer your questions. But
Re: Flash Security Clarification --- some sad facts
2005-12-25 by derbaier
... It is really hard to believe that any manufacturer of high volume systems would buy a component with missing BSDL files! That would make tests costs and
Re: Flash Security Clarification --- some sad facts
2005-12-25 by jayasooriah
There is a technique called JTAG boundary scanning. From memory, (I did this some years ago) boundary scanning does not require the target to come out of
Re: Flash Security Clarification --- some sad facts
2005-12-25 by unity0724
... and ... accordingly ... using ... from ... less ... FLASH, ... cpu ... Hi, Sorry, I do not understand a few points: Item 3) How do you write to the boot
Re: Flash Security Clarification --- some sad facts
2005-12-25 by Felix
ok, i ve tried couple experiments and done RE of the boot loader, and here are my findings: 1. JTAG pins are configured as GPIO inputs during reset, RTCK is
Re: FTDI's new FT232R as clock source
2005-12-25 by Aryeh Eiderman
Thank You Joel! I am using LPC2106. In manual looks like the 214x but less described... ... from ... its input ... supports ... chip PLL ... limited to ...
RE: [lpc2000] FTDI's new FT232R as clock source
2005-12-24 by Joel Winarske
... Excerpt from LPC214x manual: While an input signal of 50-50 duty cycle within a frequency range from 1 MHz to 50 MHz can be used by the LPC2141/2/4/6/8
FTDI's new FT232R as clock source
2005-12-24 by Aryeh Eiderman
Hi, The new USB-to-UART chip from FTDI - FT232R - have now all the features of SiLabs CP210X and one additional feature: 6/12/24/48 MHz clock to drive an
Re: Olimex LPC-P212X boards specifications erronous
2005-12-24 by rtstofer
... that ... and ... still ... P0.15 ... job ... No surprise! The LPC2106 board has the same problem. The schematic shows the button on P0.31 but it is
Olimex LPC-P212X boards specifications erronous
2005-12-24 by gussabina
Hi: I lost a long time trying to debug a simple program reading the Buttons, in the Olimex LPC-P2124/9 boards. Finally, I discovered that the buttons are not
RE: [lpc2000] Olimex LPC-P2129 CAN example
2005-12-24 by Greg Deuerling
... You can t loop CAN like that, you are shorting out the CAN transceiver pairs. You will need to loop one CAN port to another CAN port to see if its working
Re: Need help setting up the watchdog timer to generate an interrupt
2005-12-24 by Joe
See page 216 LPC2138 User guide If P0.14 is sampled low and the watchdog overflow flag is set, the external hardware request to start the ISP command handler
Tried but?MCB2130 & ULINK debugger problem
2005-12-24 by Mukadder Ceyhan
Hi, I have made all the settings related to your reply but the real problem i think is not due to the LPC2138 chip.The problem is from keil ulink debugger. I
Olimex LPC-P2129 CAN example
2005-12-24 by eabesselsen
Hello Everybody, I have bought an Olimex LPC-P2129 prototype board, an ARM-JTAG Dongle and I have downloaded a trial version of Rowley CrossStudio. I am able
Re: Flash Security Clarification
2005-12-24 by jayasooriah
Sorry for the typo error, version is 1.52, not 1.51.
Re: Flash Security Clarification
2005-12-24 by jayasooriah
Robert, What does the ISP T command do? I found this command in version 1.51 of the boot loader for 2104/5/6 but it looks like it has been omitted from
Re: Need help setting up the watchdog timer to generate an interrupt
2005-12-24 by sonoramark@yahoo.com
... a break in the MM_WATCHDOG_ISR() it works ONCE. Then, I must erase or re-flash the part with watchdog dis. before trying again, otherwise it will always
Re: [lpc2000] OT: USB Host peripheral
2005-12-23 by Doug Sutherland
Though not integrated as you want, the ISP1362 OTG is available in 6x6mm BGA, nice and small. One thing I noticed about most embedded USB devices, they are not
Re: [lpc2000] Flash Security Clarification
2005-12-23 by Robert Adsett
... Or even prying eyes :) Although the phrase preying eyes does have a certain appeal. Robert Freedom has no meaning of itself. There are always
RE: [lpc2000] OT: USB Host peripheral
2005-12-23 by Joel Winarske
Yes Phillips makes OTG controllers. Correction: It sure would make sense if Phillips implemented an OTG controller as a peripheral in an LPC21xx part. Joel
RE: [lpc2000] OT: USB Host peripheral
2005-12-23 by Joel Winarske
Thanks Doug! This looks good, a reasonable match with the LPC213x. At least once they address the silicon errata. It sure would make sense if Phillips
Re: [lpc2000] Flash Security Clarification
2005-12-23 by Robert Adsett
... Nice summary. With your permission I ll copy this to the FAQ (with appropriate credit of course). Robert Freedom has no meaning of itself. There are
Re: Flash Security Clarification
2005-12-23 by jayasooriah
Hi Richard, My understanding is that like in other such devices, the GPIO pins are sampled and copied on to relevant enable/disable bits during the reset cycle
Re: [lpc2000] OT: USB Host peripheral
2005-12-23 by Doug Sutherland
Take a look at Cypress SL811HS, which uses an 8-bit data interface. I have a schematic showing connection to an ARM720T, but I can t remember where they came
Re: Flash Security Clarification
2005-12-23 by jayasooriah
Hi Felix, It is my guess (based on understanding of information on LPC devices and history) that the two are the same. In other words LPC comes out of RESET
RE: [lpc2000] OT: USB Host peripheral
2005-12-23 by Joel Winarske
... I should point out the USBwiz from http://www.ghielectronics.com uses a Phillips ISP1160 host, which uses 22 I/O. Perhaps someone knows of a host that
OT: USB Host peripheral
2005-12-23 by Joel Winarske
Prior to grilling my distributors: Does anyone have any experience with a suitable low-cost USB Host peripheral with the LPC21xx series? Or even perhaps a
Re: [lpc2000] MCB2130 & ULINK debugger problem
2005-12-23 by Marko Pavlin (home)
Change programming algorithm to LPC2000 IAP2 512kB FLASH. You can do this in Options for target- Utilities and then Settings for ULINK arm debugger. Make sure
Re: [lpc2000] MCB2130 & ULINK debugger problem
2005-12-23 by Tom Walsh
... With the BDI2000, I have to name the device on the JTAG chain so that the pod knows how long the JTAG chain is. I have individual descriptions for both
Re: [lpc2000] Re: Misaligned structure fields, works regardless... Structure packing?
2005-12-23 by Tom Walsh
... Cheers! TomW -- Tom Walsh - WN3L - Embedded Systems Consultant http://openhardware.net, http://cyberiansoftware.com Windows? No thanks, I have work to
Re: [lpc2000] Re: Flash Security Clarification
2005-12-23 by Dominic Rath
... Bootloader update works by using ISP to load the supplied .hex file into RAM and executing it there. Because Write to RAM is disabled when CRP is
MCB2130 & ULINK debugger problem
2005-12-23 by Mukadder Ceyhan
Hi, I am using ulink and keil dev. for my mc2130 (lpc2138) board. My problem is download or programming error while ulink accessing the board. I did not
Re: [lpc2000] Re: Flash Security Clarification
2005-12-23 by Richard Duits
If I remember correctly the manual also says the pins are sampled a bit after the reset, which suggest that this is done by the bootloader code. If I would