interface to the "LPC1700 secondary USB bootloader"

Started by normnet2003 in LPC20007 years ago 9 replies

Where would I find the interface to the "LPC1700 secondary USB bootloader" in Crossworks? I have Blinky.c compiling and building. I have...

Where would I find the interface to the "LPC1700 secondary USB bootloader" in Crossworks? I have Blinky.c compiling and building. I have read the bootloader pdf found at: http://www.nxp.com/documents/application_note/AN10866.pdf I have my "Blueboard LPC1768" pulled low on reset on both pins P2.12 and P1.2 to enter secondary bootload mode. Both pins are pulled low as they both are refer...


Programming external Flash with bootloader LPC2290 and LPC2294

Started by gfaurie1 in LPC200013 years ago 1 reply

Hi, I 'd like to know if it's possible to program an external flash on CS0 with the integrated bootloader on UART0. The bootloader...

Hi, I 'd like to know if it's possible to program an external flash on CS0 with the integrated bootloader on UART0. The bootloader commands give the possibity to copy on-chip-RAM to on- chip FLASH in LPC2294. Is it possible to copy on external FLASH? because LPC2290 haven't on chip memory does any-body have already programed external


My own boot loader! (Or others with some help ;-)

Started by boje_d in LPC200012 years ago 5 replies

Hello! For my projekt i am using a lpc2292. My problem is the following: Since my application is without the possibllity to use the...

Hello! For my projekt i am using a lpc2292. My problem is the following: Since my application is without the possibllity to use the build in bootloader, i want to write my own boot loader which can be controlled via software! I imagine that i can reseve a areaa of the flash for the bootloader so it will always be present even if programm


LPC11Cxx CAN bootloader utility

Started by Kevin in LPC20006 years ago 4 replies

Hello, Can anyone point me at a PC utility to program the LPC11Cxx parts via CAN (and optionally UART) using the built-in ISP...

Hello, Can anyone point me at a PC utility to program the LPC11Cxx parts via CAN (and optionally UART) using the built-in ISP bootloader? Only the CAN port is accessible in my hardware, so I would like to be able to use this as a fallback if the device somehow gets bricked during IAP. Thanks, Kevin. ------------------------------------


DTR and RTS in bootloader

Started by nonuckingfumber in LPC200011 years ago 2 replies

I see that Phillips bootloader can assert DTR and RTS for resetting the board. Anybody know exactly how it asserts them (i.e. which is which,...

I see that Phillips bootloader can assert DTR and RTS for resetting the board. Anybody know exactly how it asserts them (i.e. which is which, how long they are asserted for etc.)


Bootloader / Floating pins ?

Started by Lasse Madsen in LPC200014 years ago 1 reply

Hi All I'm planning to try out the LPC2114 and I have a question about the bootloader and the state of the processors pins...

Hi All I'm planning to try out the LPC2114 and I have a question about the bootloader and the state of the processors pins during this... I have a multiplexer on UART 0 that can switch between a MAX232 for boot loading or another serial device. Channel A =


lpc2136 sometimes going into bootloader on powerup

Started by Mike Harrison in LPC20007 years ago 2 replies

I'm seeing something odd with an LPC2136/01 (latest rev). Sometimes on power-up, it will enter the bootloader (confirmed by seeing the...

I'm seeing something odd with an LPC2136/01 (latest rev). Sometimes on power-up, it will enter the bootloader (confirmed by seeing the handshake message on sending ? to the UART). P0.14 is pulled up to +3.3v via 10K (have also tried 1K), and nothing else is connected to it. Subsequently asserting reset & releasing will usually make it start correctly This is a new board and recently...


boot-section and application-section... need for remap??

Started by albin_martinsson in LPC200014 years ago

Hi, can someone pls help me with this... Im just starting up a project were i want to have my own bootloader in the...

Hi, can someone pls help me with this... Im just starting up a project were i want to have my own bootloader in the two first flashmemory sections and the application in the other. The bootloader should be able to reprogram the applicatoin area.


FreeRTOS + SFE Logomatic (LPC2148 based, running USB bootloader) with demo code for Rowley's Crosswork and Winarm

Started by Jean-Sebastien Stoezel in LPC20008 years ago 3 replies

Hello, A few weeks ago I asked the list whether or not anybody had attempted to run freeRTOS on SFE's logomatic V2 board. This is an LPC2148...

Hello, A few weeks ago I asked the list whether or not anybody had attempted to run freeRTOS on SFE's logomatic V2 board. This is an LPC2148 based data logging board, running an USB bootloader. I was having troubles getting the application code and interrupts relocated in flash, to take advantage of the USB bootloader. I eventually got the combination to work (with lots of help from Rowle...


Re: Trashing bootloader [was: LPC2148 identifyed as a LPC2138 ?]

Started by Stuart Wallace in LPC200012 years ago 2 replies

Hi, I'm interested to know exactly how you and your students have managed to trash the bootloader on LPC devices. Please don't read...

Hi, I'm interested to know exactly how you and your students have managed to trash the bootloader on LPC devices. Please don't read this as meaning that I'm denying that you've done it, or suggesting that it involves extraordinary effort -- I'm simply interested, as it sounds like you've managed to do it more than once. Apologies if it's all bee


LPC2103 bootloader runs when it shouldn't

Started by Casainho in LPC20009 years ago 5 replies

Hello :-) I am working with the header board from Olimex with the LPC2103. I am doing debug with JTAG. I can flash the code and sometimes...

Hello :-) I am working with the header board from Olimex with the LPC2103. I am doing debug with JTAG. I can flash the code and sometimes looks like it runs ok but others I see the PC going to address 0x7fffe278, which seems to me that bootloader is running. I did solder a new pullup resistor at P0.14 of 4K7 (while original value were 10K). I also did verify with an oscilloscope the v...


Writing your own Bootloader - tips needed

Started by Sutton Mehaffey in LPC20009 years ago 12 replies

I have never written my own bootloader, but I've just about finished writing all the code I need. I need to make sure I'm not missing anything. ...

I have never written my own bootloader, but I've just about finished writing all the code I need. I need to make sure I'm not missing anything. So, any tips from others who have done this is greatly appreciated. My application is for a 'dumb' user to be able to upload new firmware via SD card to a LPC2148 as new features to our product become available. I have an intermediary serial flash th...


Bootloader to Application switching troubles ....

Started by nourson54 in LPC200010 years ago

Hello, I have a home-made bootloader on a lpc2378 that upgrade the firmware from a SD card. It works well except there's some troubles...

Hello, I have a home-made bootloader on a lpc2378 that upgrade the firmware from a SD card. It works well except there's some troubles that appears when the application is launched. The interrupt vectors seem to be well remapped to RAM, since the software part that used interrupts are OK. But , I have trouble with the UART for example : no or random characters are sent. I seems like th...


Software reset

Started by Moses McKnight in LPC20006 years ago 5 replies

Hi, Is there a way to do a software reset in the LPC17xx chips? I wrote a USB bootloader and I would like a way to enter the bootloader from...

Hi, Is there a way to do a software reset in the LPC17xx chips? I wrote a USB bootloader and I would like a way to enter the bootloader from the main firmware without the user having to manually do something on the board. I guess one option might be to simply reset the program counter back to 0x00? Thanks, Moses ------------------------------------


own bootloader and IAP problem

Started by burner_itfi in LPC200013 years ago 1 reply

hello friends i hope you can help me. I programmed a bootloader (sector 0) who can check the flashed application...

hello friends i hope you can help me. I programmed a bootloader (sector 0) who can check the flashed application (sectors 1-13) if the application is correct and can flash a new application or configuration over can0, can1 or serial. After the start, the b


reset handler and bootloader for LPC2129

Started by achterbahn24 in LPC200013 years ago

Hello, Is there any sample code that shows how to initialize and how to use the bootloader and how to program a reset...

Hello, Is there any sample code that shows how to initialize and how to use the bootloader and how to program a reset handler?


Is it possible to jump to the bootloader from a running user program?

Started by choups_us in LPC200010 years ago 2 replies

I would like to be able to upgrade my ARM2138 without having to toggle P0.14. Is possible to simply jump to the bootloader stat from an...

I would like to be able to upgrade my ARM2138 without having to toggle P0.14. Is possible to simply jump to the bootloader stat from an already running program? If not, is there a way to put the ARM in bootloading mode?


USB Host bootloader

Started by ostehaps01 in LPC200010 years ago 5 replies

Hi Is there any exiting USB Host bootloader out there I can use as template? I would like to bootload my platform by inserting a USB key...

Hi Is there any exiting USB Host bootloader out there I can use as template? I would like to bootload my platform by inserting a USB key (or USB disk) into it, and then program the device. I uses the LPC2478 /Thomas ------------------------------------


Re: Bootloader problem

Started by Jason Morgan in LPC200011 years ago

hi, The bootloader runs if P0.14 is low OR P0.14 is high AND the checksum of the vectors (2's compliment checksum) stored at address...

hi, The bootloader runs if P0.14 is low OR P0.14 is high AND the checksum of the vectors (2's compliment checksum) stored at address 0x000000014 is not valid. I expect the latter is the problem in your case. regards, jason. --- In l...@yahoogroups.com, "Saroj Dhoj Joshi" wrote: > > Hi all, > > I am new to this group. And I am new to LPC series microcontrolle


programming with wiggler

Started by klemen_dovrtel in LPC200011 years ago 5 replies

I somehow erased the bootloader on lpc2138. Can i programm it back with wiggler? What (free) tool can i use for programming? Is...

I somehow erased the bootloader on lpc2138. Can i programm it back with wiggler? What (free) tool can i use for programming? Is default bootloader same for all lpc2000 microcontrollers? Where can i find it (i searched the nxp web site, but i cant find it)? Reagrds Klemen