PIC18 back end for XCode - Is there such an animal?
in [Embedded]
|
Prev: flash memory write endurance
Next: cycles net
From: Don Bruder on 1 Dec 2009 23:47 Looking to get into playing with a USB-connected experimenter board that talks to a PIC18F4550 chip. I don't expect to need a LOT of PIC18 code for the project I have in mind, but it seems to me that writing it in C (even a pretty sharply restricted subset, if need be) would be a whole lot less headache than trying to hand-assemble a brand-new-to-me, totally foreign assembly language. What I'm *HOPING* to find is a back end that I can attach to XCode to make it produce hex that's ready to be loaded into the PIC18 for execution. Anybody around here know if such a beast exists, and if so, where I can find it? Seems to me like there ought to be something out there to take care of this dilemma, considering we've already got gcc as the "guts" of XCode. As I understand things, gcc is supposed to mix and match back ends to produce code for whatever system/device somebody has coded a back end to handle - Two prime examples being the production of both PPC code (possibly in multiple flavors, if needed) and Intel code in a single build session. Failing that, can anyone point me to any tools, free/cheap preferred, targeting the PIC18 chip-family on the Mac? Oh, and yes, I'm aware of the one at the htsoft.com website - I've downloaded it three times now, and all three downloads have given me the same "Verifying archive integrity...Error in checksums: <10-12 digit number> is different from <different 10-12 digit number>" output when I try to execute the install script. Lotsa cross-post, I know - But they all seem to be relevant for the query. -- Email shown is deceased. If you would like to contact me by email, please post something that makes it obvious in this or another group you see me posting in with a "how to contact you" address, and I'll get back to you.
From: Frank-Christian Krügel on 2 Dec 2009 04:03 Don Bruder schrieb: > Looking to get into playing with a USB-connected experimenter board that > talks to a PIC18F4550 chip. Well, if you'd replace the PIC with an Atmel AVR 90USB162 or an 90USB1287 your life yould me MUCH easier. The PIC arcitecture is unsuitable for gcc, for the AVR architecture with it's 32 GP registers there is a nice gcc port. Or skip the 8 bit world totally and choose an STM32F103 Cortex M3. The price is nearly the same, and you'll get much more power. Just think about it. -- Mit freundlichen Gr��en Frank-Christian Kr�gel
From: don on 2 Dec 2009 12:25 Don Bruder wrote: You mean the Xcode cross compiler for Apple computers ?? I have never seen cross compiler tools for Macs that really work in the embedded world. Good luck don
From: Steve on 2 Dec 2009 12:31 In article <hf4rf2$osi$1(a)news.eternal-september.org>, dakidd(a)sonic.net (Don Bruder) wrote: > *From:* Don Bruder <dakidd(a)sonic.net> > *Date:* Tue, 01 Dec 2009 20:47:07 -0800 > > Looking to get into playing with a USB-connected experimenter board > that talks to a PIC18F4550 chip. > > I don't expect to need a LOT of PIC18 code for the project I have > in mind, but it seems to me that writing it in C (even a pretty > sharply restricted subset, if need be) would be a whole lot less > headache than trying to hand-assemble a brand-new-to-me, totally > foreign assembly language. > > What I'm *HOPING* to find is a back end that I can attach to XCode > to make it produce hex that's ready to be loaded into the PIC18 for > execution. > > Anybody around here know if such a beast exists, and if so, where I > can find it? > > Seems to me like there ought to be something out there to take care > of this dilemma, considering we've already got gcc as the "guts" of > XCode. As I understand things, gcc is supposed to mix and match > back ends to produce code for whatever system/device somebody has > coded a back end to handle - Two prime examples being the > production of both PPC code (possibly in multiple flavors, if > needed) and Intel code in a single build session. > > Failing that, can anyone point me to any tools, free/cheap > preferred, targeting the PIC18 chip-family on the Mac? > > Oh, and yes, I'm aware of the one at the htsoft.com website - I've > downloaded it three times now, and all three downloads have given > me the same "Verifying archive integrity...Error in checksums: > <10-12 digit number> is different from <different 10-12 digit > number>" output when I try to execute the install script. > > Lotsa cross-post, I know - But they all seem to be relevant for the > query. > > -- > Email shown is deceased. If you would like to contact me by email, > please > post something that makes it obvious in this or another group you > see me > posting in with a "how to contact you" address, and I'll get back > to you. > Is this the Velleman board? (Can't recall the number) I took the chip out and started again from scratch using a suitable compiler. Just for experimentation purposes there are a couple of free compiler/IDEs - Steve
From: John Temples on 2 Dec 2009 14:54
On 2009-12-02, Don Bruder <dakidd(a)sonic.net> wrote: > Failing that, can anyone point me to any tools, free/cheap preferred, > targeting the PIC18 chip-family on the Mac? Hi-Tech's compilers support the PIC18 and run on the Mac. They have a free "Lite" mode. -- John W. Temples, III |