RE: [Elecraft] K3 problem with logging program after download upgrade
Julian makes a good point, but we're not going to use MD5. The intel hex format contains sufficient internal integrity checks that we can very likely tell that it has been corrupted. It has a line-by-line star character, a per-line checksum byte, and it has a definite end of file record. The sorts of corruption that we'll see in file transfer operations will most likely be caught by the existing verification. However the K3 Utility wasn't verifying the file until the MCU load had started. This is inconvenient, because the error recovery then consists of erasing the corrupt file from your PC, re-doing the FTP, and trying it again. If the FTP operation is at some distance from the radio, it becomes more inconvenient. The current DSP files are in a binary format, and the load process depended on a post-load internal verification, plus a command query to see that the processor was healthy enough to respond to a few simple commands. Based on K0PP's experience, the next revision of the K3 Utility (being evaluated by Field Test now) will verify Intel Hex files right after FTP copy, repeating the file copy if necessary. It will be verified again by a pre-pass before beginning the MCU load. The loader contains changes that permit the DSPs to be loaded in either binary or intel hex format. Subsequent revisions of DSP firmware will be released in intel hex format to permit this verification. The DSP firmware files are larger ( 2 times larger), but the load time to the K3 isn't increased dramatically. It will be slightly slower. Use of MD5 would have required us to maintain a side file of MD5 hashes or create a new variant of the intel hex file format with an internal digest. I suggested that keeping the side files in sync with the distribution of the firmware would be a continuing distribution problem. I did use an internal digest technique (with a CRC-32) for the configuration file save format, but that format was one of my creation. intel hex files are processed by a fair number of existing tools, not all of which are easily modified. 73 de Dick, K6KR -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of David Woolley Sent: Friday, December 07, 2007 12:40 AM To: elecraft Subject: Re: [Elecraft] K3 problem with logging program after download upgrade Julian G4ILO wrote: Surely the uploader should do some kind of integrity check, instead of attempting to upload a duff file to the radio? It's not exactly rocket science. There's a thing called MD5 that's very good for this... MD5 is overkill. It's intended to detect deliberate tampering, although it's also useful as a fast way of comparing multiple files, as there is a high level of confidence that files with the same MD5 digest have the same content, given the presumption that they might. It's origins are in encryption, rather than in error detection. CRC codes are faster to compute and give good protection against random errors. In general, all the high risk steps in getting the firmware from Elecraft to the K3 are protected by error detection codes already, with the exception of the final hop, over the serial link. Typically the hex file is going to be processed incrementally as it arrives over that link, so most of the protection at that stage has to by short check codes that can be applied frequently, not a long one for the whole file. The other high risk area is probably the PC memory, if it doesn't have parity, which most, for cost, and speed reasons, doesn't. However, if the PC memory unreliable, you cannot trust that error detection code is being run correctly, or that errors won't be introduced after the check. Similarly for CPU faults, although these should be less likely for a system running within specification. Incidentally, there are known problems in MD5's tamper detection credentials and best current practice, at least in the open literature, is to use both MD5 and another cryptographic checksum algorithm called SHA (secure hash algorithm). -- David Woolley Emails are not formal business letters, whatever businesses may want. RFC1855 says there should be an address here, but, in a world of spam, that is no longer good advice, as archive address hiding may not work. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 problem with logging program after download upgrade
Julian G4ILO wrote: Surely the uploader should do some kind of integrity check, instead of attempting to upload a duff file to the radio? It's not exactly rocket science. There's a thing called MD5 that's very good for this... MD5 is overkill. It's intended to detect deliberate tampering, although it's also useful as a fast way of comparing multiple files, as there is a high level of confidence that files with the same MD5 digest have the same content, given the presumption that they might. It's origins are in encryption, rather than in error detection. CRC codes are faster to compute and give good protection against random errors. In general, all the high risk steps in getting the firmware from Elecraft to the K3 are protected by error detection codes already, with the exception of the final hop, over the serial link. Typically the hex file is going to be processed incrementally as it arrives over that link, so most of the protection at that stage has to by short check codes that can be applied frequently, not a long one for the whole file. The other high risk area is probably the PC memory, if it doesn't have parity, which most, for cost, and speed reasons, doesn't. However, if the PC memory unreliable, you cannot trust that error detection code is being run correctly, or that errors won't be introduced after the check. Similarly for CPU faults, although these should be less likely for a system running within specification. Incidentally, there are known problems in MD5's tamper detection credentials and best current practice, at least in the open literature, is to use both MD5 and another cryptographic checksum algorithm called SHA (secure hash algorithm). -- David Woolley Emails are not formal business letters, whatever businesses may want. RFC1855 says there should be an address here, but, in a world of spam, that is no longer good advice, as archive address hiding may not work. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 problem with logging program after download upgrade
On Dec 4, 2007 6:31 AM, Dick Dievendorff [EMAIL PROTECTED] wrote: No, that sounds like you got a bad file from the Elecraft file server. I'd recommend erasing the hmcu*.hex file and re-do the Copy files from elecraft. If you open the hex file in Notepad, every line should start with a colon. Surely the uploader should do some kind of integrity check, instead of attempting to upload a duff file to the radio? It's not exactly rocket science. There's a thing called MD5 that's very good for this... -- Julian, G4ILO K2 s/n: 392 K3 s/n: ??? G4ILO's Shack: www.g4ilo.com Zerobeat Ham Forums: www.zerobeat.net/smf ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] K3 problem with logging program after download upgrade
md5sum anyone? Dan / WG4S / K2 #2456 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Dick Dievendorff Sent: Tuesday, December 04, 2007 1:31 AM To: 'Ken Kopp'; elecraft@mailman.qth.net Subject: RE: [Elecraft] K3 problem with logging program after download upgrade No, that sounds like you got a bad file from the Elecraft file server. I'd recommend erasing the hmcu*.hex file and re-do the Copy files from elecraft. If you open the hex file in Notepad, every line should start with a colon. 73 de Dick, K6KR snip / ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] K3 problem with logging program after download upgrade
Thanks, Bob. But I didn't detect the corrupt file problem until after the K3 Utility had started to load the MCU. I still think I might need to pass the file twice, once to verify that it's complete and checksums correctly, and then again to actually load the firmware into the radio. Dick, K6KR -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Bob Cunnings Sent: Tuesday, December 04, 2007 7:26 AM To: elecraft Subject: Re: [Elecraft] K3 problem with logging program after download upgrade Well, From the error message I infer that the file is in Intel Hex format. This format contains a built in integrity check, namely a checksum for every line. So it seems the uploader did indeed perform an integrity check - and detected a problem. Relax, these guys *do* know what they are doing! For years, at work, I've been using this format for deployment of firmware images used to update products in the field, it's plenty robust, nothing else is required, insofar as verifying the file read in from disk. Bob NW8L On Dec 4, 2007 2:24 AM, Julian G4ILO [EMAIL PROTECTED] wrote: Surely the uploader should do some kind of integrity check, instead of attempting to upload a duff file to the radio? It's not exactly rocket science. There's a thing called MD5 that's very good for this... ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] K3 problem with logging program after download upgrade
Dick - the post was meant in jest: http://en.wikipedia.org/wiki/Bit_bucket Oh yeah... Soapbox OFF. ;-) Huh? The command is one byte, a semicolon. There are four supported speeds. It takes a few parts of a ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] K3 problem with logging program after download upgrade
On Tue, 4 Dec 2007, Don Rasmussen wrote: Dick - the post was meant in jest: Ya gotta be careful with humor...it sometimes gets booked on one of the flights that goes into the ionosphere. 73 - k3hrn Thom,EIEIO Email, Internet, Electronic Information Officer www.baltimorehon.com/Home of the Baltimore Lexicon www.tlchost.net/hosting/ Web Hosting as low as 3.49/month ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] K3 problem with logging program after download upgrade
Went right over my head. I feel a little sheepish 73 de Dick, K6KR -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Thom LaCosta Sent: Tuesday, December 04, 2007 8:20 AM To: Don Rasmussen Cc: elecraft@mailman.qth.net Subject: RE: [Elecraft] K3 problem with logging program after download upgrade On Tue, 4 Dec 2007, Don Rasmussen wrote: Dick - the post was meant in jest: Ya gotta be careful with humor...it sometimes gets booked on one of the flights that goes into the ionosphere. 73 - k3hrn Thom,EIEIO Email, Internet, Electronic Information Officer www.baltimorehon.com/Home of the Baltimore Lexicon www.tlchost.net/hosting/ Web Hosting as low as 3.49/month ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] K3 problem with logging program after download upgrade
On Tue, 4 Dec 2007, Dick Dievendorff wrote: Went right over my head. I feel a little sheepish I think it may be a problem that many of us have one time or another...we're so serious about our occupation or hobby that we find it hard to see the humor. Thom,EIEIO Email, Internet, Electronic Information Officer www.baltimorehon.com/Home of the Baltimore Lexicon www.tlchost.net/hosting/ Web Hosting as low as 3.49/month ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 problem with logging program after download upgrade
I sat here eagerly waiting to see who would bite :-) Relives the boredom of waiting for Mr Brown to arrive... On 4/12/07 16:26, Dick Dievendorff [EMAIL PROTECTED] sent: Went right over my head. I feel a little sheepish 73 de Dick, K6KR -Original Message- Dick - the post was meant in jest: Ya gotta be careful with humor...it sometimes gets booked on one of the flights that goes into the ionosphere. -- All the world's a stage and most of us are desperately unrehearsed. -Sean O'Casey, playwright (1880-1964) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 problem with logging program after download upgrade
On 04/12/2007, Thom LaCosta [EMAIL PROTECTED] wrote: Ya gotta be careful with humor...it sometimes gets booked on one of the flights that goes into the ionosphere. Well, there aren't enough ions up there at the moment to bounce it back. Or anything much else, unfortunately... -- Julian, G4ILO K2 s/n: 392 K3 s/n: ??? G4ILO's Shack: www.g4ilo.com Zerobeat Ham Forums: www.zerobeat.net/smf ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] K3 problem with logging program after download upgrade
On Tue, 4 Dec 2007, Julian G4ILO wrote: On 04/12/2007, Thom LaCosta [EMAIL PROTECTED] wrote: Ya gotta be careful with humor...it sometimes gets booked on one of the flights that goes into the ionosphere. Well, there aren't enough ions up there at the moment to bounce it back. Or anything much else, unfortunately... Could it be that years from now, when debate rages over the relative worth of a low serial number K3 versus a high serial number, or positive or negative ALC, of the best tone for sidetone that it will return to us for visitation? I just realized that all the posts about the K3 have displaced the old threads that cast aspersion on those that didn't build their own Elecraft rig in the comfort of their personal work shop. I suppose I will have to overcome my guilt when my K3 arrives, since it is factory built I also heard a rumor that Christams will be celebrated in March of 2008, thus freeing the elves to assemble K3s and Santa can deliver them. 73 - k3hrn Thom,EIEIO Email, Internet, Electronic Information Officer www.baltimorehon.com/Home of the Baltimore Lexicon www.tlchost.net/hosting/ Web Hosting as low as 3.49/month ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] K3 problem with logging program after download upgrade
On the note of bad files, are hash checks performed on the downloaded files? - David Wilburn [EMAIL PROTECTED] K4DGW K2 S/N 5982 On Mon, 2007-12-03 at 22:31 -0800, Dick Dievendorff wrote: No, that sounds like you got a bad file from the Elecraft file server. I'd recommend erasing the hmcu*.hex file and re-do the Copy files from elecraft. If you open the hex file in Notepad, every line should start with a colon. 73 de Dick, K6KR -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ken Kopp Sent: Monday, December 03, 2007 9:52 PM To: elecraft@mailman.qth.net Subject: Fw: [Elecraft] K3 problem with logging program after download upgrade Could this account for the Intel Hex file ran out of bytes before Intel End file record was read -and- Intel Hex Read error: Expected start characher : not found messages when attempting (unsuccessfully) to load the new upgrade into my K3? 73! Ken Kopp - K0PP [EMAIL PROTECTED] - Original Message - From: Don Rasmussen To: elecraft@mailman.qth.net Sent: Tuesday, 04 December, 2007 05:40 Subject: [Elecraft] K3 problem with logging program after download upgrade Hi, Buck. The K3 Utility attempts to communicate with the MCU initially to establish its baud rate. This is done by sending a small command at each of the supported speeds. snip Soapbox ON. IMO - This is a tragic WASTE of BITS. And this happens every time there is an update? Calculate the number of updates over the life of the radio, now how big is the bit bucket - remembering ASCII is 7 bits per character plus parity plus start bits and stop bit. Could be some major overflow problems when folks least expect it... ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] K3 problem with logging program after download upgrade
Buck. Please report issues such as this to the [EMAIL PROTECTED] address that was included with the radio. I'll pass this on to our software person who designed the downloader. This must be associated with the new downloader as I've not seen this reported before. The issue of Line-In staing active through a power cycle has already been identified and was corrected today. It will be available in the next FW update. Thanks. 73 Greg AB7R -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of [EMAIL PROTECTED] Sent: Monday, December 03, 2007 6:54 PM To: elecraft@mailman.qth.net Subject: [Elecraft] K3 problem with logging program after download upgrade The downloader utility did not reset the baud rate back from the 38,400 for the download to the 4800 specified for the rig control - I know I read somewhere it was supposed to do this. As a result my logging program stopped responding to the radio. I reset the logging program to accept 38,400 and now the DxLab and the K3 are talking to each other again. Also, the Mic Sel of Line In stopped working. Once I cycled through the other choices back to Line In, it started working again. Craig Buck k4ia Fredericksburg, Virginia USA **Check out AOL's list of 2007's hottest products. (http://money.aol.com/special/hot-products-2007?NCID=aoltop000301) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] K3 problem with logging program after download upgrade
Hi, Buck. The K3 Utility attempts to communicate with the MCU initially to establish its baud rate. This is done by sending a small command at each of the supported speeds. If the MCU responds at one of those speeds, the baud rate is saved and an attempt is made to restore that setting after firmware load. Firmware loading is done at 38,400. If the K3 Utility can't communicate with a live MCU (which can happen if you've pressed and held the power key for 10 seconds), then the established baud rate can't be determined, and the K3 Utility leaves the baud rate at 38,400 after loading firmware. Since the utility couldn't figure out the initial baud rate, it can't reestablish it after the load. Is this repeatable, or a one-off occurrence? I test this, and I don't think I've changed that behavior recently. While typing this note I set the baud rate to 4800, loaded the MCU and DSP1, and found the baud rate back at 4800 after the load. If any of the firmware loading is interrupted and the K3 Utility doesn't get to the end of the firmware load and have a chance to restore the baud rate, it'll be left at 38,400. The intent is to restore the baud rate that the rig was set to before the firmware load. If all goes well, that usually happens. But interruptions can upset that behavior. 73 de Dick, K6KR -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Greg Sent: Monday, December 03, 2007 7:04 PM To: [EMAIL PROTECTED]; elecraft@mailman.qth.net Cc: K3 Support Subject: RE: [Elecraft] K3 problem with logging program after download upgrade Buck. Please report issues such as this to the [EMAIL PROTECTED] address that was included with the radio. I'll pass this on to our software person who designed the downloader. This must be associated with the new downloader as I've not seen this reported before. The issue of Line-In staing active through a power cycle has already been identified and was corrected today. It will be available in the next FW update. Thanks. 73 Greg AB7R -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of [EMAIL PROTECTED] Sent: Monday, December 03, 2007 6:54 PM To: elecraft@mailman.qth.net Subject: [Elecraft] K3 problem with logging program after download upgrade The downloader utility did not reset the baud rate back from the 38,400 for the download to the 4800 specified for the rig control - I know I read somewhere it was supposed to do this. As a result my logging program stopped responding to the radio. I reset the logging program to accept 38,400 and now the DxLab and the K3 are talking to each other again. Also, the Mic Sel of Line In stopped working. Once I cycled through the other choices back to Line In, it started working again. Craig Buck k4ia Fredericksburg, Virginia USA **Check out AOL's list of 2007's hottest products. (http://money.aol.com/special/hot-products-2007?NCID=aoltop000301) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] K3 problem with logging program after download upgrade
No, that sounds like you got a bad file from the Elecraft file server. I'd recommend erasing the hmcu*.hex file and re-do the Copy files from elecraft. If you open the hex file in Notepad, every line should start with a colon. 73 de Dick, K6KR -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ken Kopp Sent: Monday, December 03, 2007 9:52 PM To: elecraft@mailman.qth.net Subject: Fw: [Elecraft] K3 problem with logging program after download upgrade Could this account for the Intel Hex file ran out of bytes before Intel End file record was read -and- Intel Hex Read error: Expected start characher : not found messages when attempting (unsuccessfully) to load the new upgrade into my K3? 73! Ken Kopp - K0PP [EMAIL PROTECTED] - Original Message - From: Don Rasmussen To: elecraft@mailman.qth.net Sent: Tuesday, 04 December, 2007 05:40 Subject: [Elecraft] K3 problem with logging program after download upgrade Hi, Buck. The K3 Utility attempts to communicate with the MCU initially to establish its baud rate. This is done by sending a small command at each of the supported speeds. snip Soapbox ON. IMO - This is a tragic WASTE of BITS. And this happens every time there is an update? Calculate the number of updates over the life of the radio, now how big is the bit bucket - remembering ASCII is 7 bits per character plus parity plus start bits and stop bit. Could be some major overflow problems when folks least expect it... ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] K3 problem with logging program after download upgrade
Huh? The command is one byte, a semicolon. There are four supported speeds. It takes a few parts of a second to do all this. Dick -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Don Rasmussen Sent: Monday, December 03, 2007 9:40 PM To: elecraft@mailman.qth.net Subject: [Elecraft] K3 problem with logging program after download upgrade Hi, Buck. The K3 Utility attempts to communicate with the MCU initially to establish its baud rate. This is done by sending a small command at each of the supported speeds. snip Soapbox ON. IMO - This is a tragic WASTE of BITS. And this happens every time there is an update? Calculate the number of updates over the life of the radio, now how big is the bit bucket - remembering ASCII is 7 bits per character plus parity plus start bits and stop bit. Could be some major overflow problems when folks least expect it... ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
