Hi, we have production run of boards with LPC2214 and LPC2294, these are our LPC+external memory header boards and LPC+external memory+ethernet boards. On about 20% of the boards Philips ISP utility fail to program the code on speed above 19200. Everything seems like baudrate problem as if 19200 or lower speed is used ISP programs everything just fine. chip info is: LPC2294JBD144 CD2664 03 TS0434 A PART ID - 84016915 boot loader ID - 1.63 XTAL freq - 1 474 600 Hz I sent this info to Philips but they seems to not have time to reply (season Holidays are aproaching ;), so I wonder if anyone else have had the same problems? is there newer bootloader release which to fix these issues? Best regards Tsvetan --- PCB prototypes for $26 at http://run.to/pcb (http://www.olimex.com/pcb) PCB any volume assembly (http://www.olimex.com/pcb/protoa.html) Development boards for ARM, AVR, PIC, and MSP430 (http://www.olimex.com/dev) |
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LPC2214 possible bootloader rev. 1.63 problem
Started by ●December 17, 2004
Reply by ●December 17, 20042004-12-17
We experienced the same behavior when upgrading to 1.63 on the 2114. Please let me know if you hear of a solution. Thanks, --rich -----Original Message----- From: tsvetanusunov [mailto:] Sent: Friday, December 17, 2004 10:14 AM To: Subject: [lpc2000] LPC2214 possible bootloader rev. 1.63 problem Hi, we have production run of boards with LPC2214 and LPC2294, these are our LPC+external memory header boards and LPC+external memory+ethernet boards. On about 20% of the boards Philips ISP utility fail to program the code on speed above 19200. Everything seems like baudrate problem as if 19200 or lower speed is used ISP programs everything just fine. chip info is: LPC2294JBD144 CD2664 03 TS0434 A PART ID - 84016915 boot loader ID - 1.63 XTAL freq - 1 474 600 Hz I sent this info to Philips but they seems to not have time to reply (season Holidays are aproaching ;), so I wonder if anyone else have had the same problems? is there newer bootloader release which to fix these issues? Best regards Tsvetan --- PCB prototypes for $26 at http://run.to/pcb (http://www.olimex.com/pcb) PCB any volume assembly (http://www.olimex.com/pcb/protoa.html) Development boards for ARM, AVR, PIC, and MSP430 (http://www.olimex.com/dev) click here <http://us.ard.yahoo.com/SIG9ob5ngt/M)4855.5468653.6549235.3001176/ D=groups/S06554205:HM/EXP03393670/A$55396/R=0/SIG9u9qmi7/*htt p://smallbusiness.yahoo.com/domains/> <http://us.adserver.yahoo.com/l?M)4855.5468653.6549235.3001176/D=group s/S=:HM/A$55396/rand2864127 ________________________________ > . |
Reply by ●December 17, 20042004-12-17
My chip says LPC2214FBD144 CD2662 10 TSD435 A Are this chips loaded with bootloader 1.63? Thanks Ezequiel --- In , "tsvetanusunov" <tusunov@m...> wrote: > > Hi, > > we have production run of boards with LPC2214 and LPC2294, these are > our LPC+external memory header boards and LPC+external > memory+ethernet boards. > On about 20% of the boards Philips ISP utility fail to program the > code on speed above 19200. Everything seems like baudrate problem as > if 19200 or lower speed is used ISP programs everything just fine. > > chip info is: > > LPC2294JBD144 > CD2664 03 > TS0434 A > > PART ID - 84016915 > boot loader ID - 1.63 > XTAL freq - 1 474 600 Hz > > I sent this info to Philips but they seems to not have time to reply > (season Holidays are aproaching ;), so I wonder if anyone else have > had the same problems? is there newer bootloader release which to fix > these issues? > Best regards > Tsvetan > --- > PCB prototypes for $26 at http://run.to/pcb > (http://www.olimex.com/pcb) > PCB any volume assembly (http://www.olimex.com/pcb/protoa.html) > Development boards for ARM, AVR, PIC, and MSP430 > (http://www.olimex.com/dev) |
Reply by ●December 17, 20042004-12-17
> Hi, > > we have production run of boards with LPC2214 and LPC2294, these are > our LPC+external memory header boards and LPC+external > memory+ethernet boards. > On about 20% of the boards Philips ISP utility fail to program the > code on speed above 19200. Everything seems like baudrate problem as > if 19200 or lower speed is used ISP programs everything just fine. I experience this problem quite frequently on my 2114 board (1.63 bootloader), especially at 115k baud speeds. Using a 14.7456 Mhz I expected updating to be at least hassle free at high bauds (2114 user manual). However, the process tends to halt & fail somewhere in the middle. Normally I'd resort to retrying the update until it eventually completes. I'm having the success with 56k baud & below speeds and below, with less halts occuring at 56k. Keep me posted if u've found the cause of this problem. Leighton |
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Reply by ●December 17, 20042004-12-17