D-49 === Subject: Re: Can HP-48SX/HP-48GX ROM be updated? Raymond Del Tondo a .8emis l'id.8ee suivante : >> there's a solution on the GX : use a memory card configured over the normal >> ROM. It works > Maybe, but you still need the ability to compile a ROM;-) It's somewhat easy to patch it in ASM or SysRPL. Furthermore it's also possible to (partially) decompile the ROM. Another solution is to rewrite the main loop. I did it on a 28s (or c ?) to get an auto-repeat keyboard with keyclicks :-D === Subject: hp49G+ example of DOTVARS% in sysrpl Can someone give me an example of how to use DOTVARS% in sysrpl for the HP-49G+. I thought it would be like the user rpl function, but I guess not. It always seems to return {}. === Subject: Re: hp49G+ example of DOTVARS% in sysrpl > I thought it would be like the user rpl function, but I guess not. It > always seems to return {}. It should be identical. Are you sure there isn't something in your code causing problems? Try :: CKREAL DOTVARS% ; TW === Subject: Re: hp49G+ example of DOTVARS% in sysrpl You most likely have a ZINT instead of a REAL as the input into your DOTVARS%. DOTVARS just runs COERCE as the first thing it does. It will take a zint without any errors. TW === Subject: USB to serial cable and serial to HP48 or HP49 cables Hello HP gurus, I have inherited of an old IBM NetVista PC, and I run both Windows 2000 Pro and Windows XP on it. A great machine ! Unfortunately, the machine has no serial port, instead it has a lot of USB ports - I presume USB 1.1. I am considering to acquire an USB to serial port to connect my fafourite HP 48and HP49 calcs. The money is not the issue, the thing is cheap. I just wonder if anyone has any experience with those adaptors, either for HP48, or HP49, under W2K or XP... Any feedback will be welcome. Herve === Subject: CORRECTION : USB to serial ADAPTOR and serial to HP48 or HP49 cables Hello HP gurus, I have inherited of an old IBM NetVista PC, and I run both Windows 2000 Pro and Windows XP on it. A great machine ! Unfortunately, the machine has no serial port, instead it has a lot of USB ports - I presume USB 1.1. I am considering to acquire an USB to serial ADAPTOR to connect my fafourite HP 48and HP49 calcs. The money is not the issue, the thing is cheap. I just wonder if anyone has any experience with those adaptors, either for HP48, or HP49, under W2K or XP... Any feedback will be welcome. Herve === Subject: Re: CORRECTION : USB to serial ADAPTOR and serial to HP48 or HP49 cables I don't know if it will help but I've used them on a number of computers using a 39G. This suffers the same problem of needing a comm port with many computers not having them. I put info on my website for other users with the same problem. See http://www.hphomeview.com/Tips/USB%20to%20Serial%20Converters.pdf > Hello HP gurus, > I have inherited of an old IBM NetVista PC, and I run both Windows 2000 > Pro and Windows XP on it. A great machine ! Unfortunately, the machine > has no serial port, instead it has a lot of USB ports - I presume USB > 1.1. I am considering to acquire an USB to serial ADAPTOR to connect my > fafourite HP 48and HP49 calcs. The money is not the issue, the thing is > cheap. I just wonder if anyone has any experience with those adaptors, > either for HP48, or HP49, under W2K or XP... Any feedback will be welcome. > Herve === Subject: Re: CORRECTION : USB to serial ADAPTOR and serial to HP48 or HP49 cables Herve > I don't know if it will help but I've used them on a number of computers > using a 39G. This suffers the same problem of needing a comm port with > many computers not having them. I put info on my website for other users > with the same problem. > See http://www.hphomeview.com/Tips/USB%20to%20Serial%20Converters.pdf >> Hello HP gurus, >> I have inherited of an old IBM NetVista PC, and I run both Windows >> 2000 Pro and Windows XP on it. A great machine ! Unfortunately, the >> machine has no serial port, instead it has a lot of USB ports - I >> presume USB 1.1. I am considering to acquire an USB to serial ADAPTOR >> to connect my fafourite HP 48and HP49 calcs. The money is not the >> issue, the thing is cheap. I just wonder if anyone has any experience >> with those adaptors, either for HP48, or HP49, under W2K or XP... Any >> feedback will be welcome. >> Herve === Subject: Re: CORRECTION : USB to serial ADAPTOR and serial to HP48 or HP49 cables > I don't know if it will help but I've used them on a number of computers > using a 39G. This suffers the same problem of needing a comm port with > many computers not having them. I put info on my website for other users > with the same problem. > See http://www.hphomeview.com/Tips/USB%20to%20Serial%20Converters.pdf Hello Colin Just a quick note about your documentation. This is a very good one, I wished HP published that on their site. What you describe as a parallel port isn't. This is still a serial port but a DB25 connector. So the extra adapter required is a DB25 to DB9. If people go and ask for a parallel to serial port adapter they are likely to find ... nothing. Hope this will help Jean-Yves === Subject: Re: HP49G+ and HP49 are Compatible ? >> Is the IrDA interface capable to transfer with oldest HP48 series ? >No. Different protocols. It DOES work with the old calculator printers though. Seems to be impossible to connect directly an HP48G with a HP49G+ directly, if the IrDA isn't compatible with the 48 series protocol, some electronics it's necessary to convert the USB port on the 48G+ to RS232 on 48 series.... === Subject: Re: HP49G+ and HP49 are Compatible ? >> Is the IrDA interface capable to transfer with oldest HP48 series ? >No. Different protocols. It DOES work with the old calculator printers though. > Seems to be impossible to connect directly an HP48G with a HP49G+ > directly, if the IrDA isn't compatible with the 48 series protocol, > some electronics it's necessary to convert the USB port on the 48G+ to > RS232 on 48 series.... You'll find that troublesome too. The USB port on the 48G+ is configured as a device, not a host; your typical off-the-shelf USB->RS232 converter will not work as expected. It may be possible to program a smart USB-enabled microcontroller to act as a limited USB host, with the sole purpose of enumerating and talking to HP49g+'s, and forwarding all incoming and outgoing data streams to an RS232 port that talks to the older HP48's. It also may be possible to hack the OS of the HP49g+ so that the USB connector acts as a host instead of a device. (The CPU appears to be physically capable of using the USB pins in either host or device mode, and it appears to only be the software that runs it which determines which mode it operates in.) Then, you'd have to write drivers to allow the HP49g+ to talk to an off-the-shelf USB->RS232 converter, and connect the other end to the HP48 (along with some external power supply, because it seems doubtful that the HP49g+ would be able to supply sufficient power to drive such an adaptor on its own). Finally, it may be possible to design a device that accepts IrDA signals, and converts them to RS232 which is fed into the serial port of the HP48. - Luke === Subject: Re: Help with equation concrete_jungle ha escrito: > Thw formular is from Engineering economy Are you trying to valuate some kind of Investing Title? Because the Finance library has must of the formulas properly set and solved ! Daniel === Subject: Any new ROM update planed? Hello People, I'd like to know if any ROM update for the HP-49g+ is planed? if so, when will it come out? Fred. === Subject: Re: Any new ROM update planed? If they are working on one, it will come out when ready. If anyone knows exactly when, they wouldn't be allowed to talk about it anyway. Keep in mind that if someone working for HP said, Yes and it will be XXX day. Then they responsibility for this statement may fall on the company. I'm sure one of the first things they tell you when you are working for a company is DON'T talk about things. So asking this question will only get response from people that are speculating or complaining. TW === Subject: Re: Any new ROM update planed? hello, yep, I could not agree more :-) cyrille > If they are working on one, it will come out when ready. If anyone > knows exactly when, they wouldn't be allowed to talk about it anyway. > Keep in mind that if someone working for HP said, Yes and it will be > XXX day. Then they responsibility for this statement may fall on the > company. I'm sure one of the first things they tell you when you are > working for a company is DON'T talk about things. > So asking this question will only get response from people that are > speculating or complaining. > TW === Subject: find out if var exists graph... the arguments are: scale, point in the scale and desired point to place... the solution comes up in a msgbox.. until now, everything is fine... the problem is that i wanna the program to recall itself filling up the scale with the previous value... i've tried a loop after the end of the program that redraws the inform with the same fields and fill up the scale... this loop will continue, until i press cancel... I got stuck in there, 'coz the loop never recognized the cancel... lol... the basic code is here... << ACHAR PONTO { {ESCALA: ESCALA USADA NA LINHA 0 1 9 13} {LINHA: PONTO MAIS PROXIMO DO PROCURADO 0 1 9 13} {PONTO: PROCURADO 0 1 9 13} } { } { } { } IF INFORM THEN OBJ-> DROP -> a b c << c b - a 10 / / 0 RND a SWAP >> ->STR MSGBOX END sugestions??? tks, Christiano.