Swordfish

The ConfigGenerator tool has gotten a facelift and some new features. It now allows you to import and export the settings to a file (it can even scan an existing .bas file for current settings). Another new feature is the ability to read the CONFIG settings from an existing .hex file, which can be h...

V2.10 released to correct IRQ errors in the DFP files for the Q40 and Q41 families

Attached are updated device files for the Q40/Q41 family.
I've also updated the SystemConvert utility to v2.10 which takes care of this error in the DFP files.

I just ran across this... There are errors in the current Q40/Q41 datasheets and mplabx DFP device files (which are used to generate the SF device files). The IRQ numbers for interrupt vectors 49-55 are incorrect (PIE6/PIR6/IRP6 show bit 1 is unused, and the IRQ's don't take this into account). The ...

The device register bit files in SF v2.2.4.1 now contain structure definitions similar to the examples shown in the wiki Using Bitname Structures These files are automatically generated from the MPLABX DFP files by the new SystemConvert V2 utility For example, the file "P18F26Q43.bas" contains // PI...

There is a new compiler update 2.2.4.1 available for registered users. You can use the download function in the IDE under 'Help | About... | Check for Updates" or Download: http://www.mecanique-web.co.uk/downloads/swordfish-si.exe and enter your activation key to install. You can view a list of chan...

The SetChan() sub uses the channel number setting for the ADC Positive Channel Selection Register, so it'll likely change depending on the device. Consult the datasheet for the ADPCH register settings. For the 26Q43 in the demo program the datasheet section 40.7.8 ADPCH shows: 000000 RA0/ANA0 001000...

I always like to use interrupts for handing serial input since it'll buffer incoming chars while you process stuff. Here's a version that gets chars from the isr buffer, echos them, and checks for CR (completely untested) You'd probably want to add a bit more error handling and checking for things l...

After a long hiatus, the tools for creating Swordfish device files are available again on the wiki page at SystemConvert

Along with SystemConvert V2, a new InfoGen tool allows you to create the required 8bit_device.info file for adding devices to the MPASMX assembler.

That config looks correct for an external xtal + pll. You should be able to see what's being used by looking at the COSC and CDIV bits in the OSCCON2 register, and along with OSCSTAT that should show the current osc status. You have the fail-safe clock-switching disabled, so it shouldn't be running ...

The attached zip file contains an updated NMEA module (v1.3) that has a few new features: - can use either high or low priority interrupts (set via #option) - context save optimized when used with xv18 devices - NMEA.bas contains aliases for various USARTx routines like SetBaudrate so you don't have...

With a few minor changes to NMEA.bas to remove the hardcoded references to the interrupt and RCREG definitions and use the generic ones defined in USART.bas, you should be able to changed the module to work with any device without having to restructure it to use the rx isr. This also adds a new '#op...

Swordfish uses the same 32-bit floating point format as the old Microchip C compiler, so it's not the same as IEEE-754. Here's some old code I had laying around to convert between the two... I *THINK* this works (but I haven't had another look at it) // SF floats are in 32-bit Microchip format, low:...

Glad you got it sorted out.

They do show some typical values for the IO slew rate in the datasheet (table 47-10). What you're seeing seems to pretty much match...

As far as I know, there are no 8-pin 18F's.

The smallest I'm aware of are the 18F0xQ40/Q41 which come in 14-pin TSSOP/SOIC packages.
A 14-pin SOIC is about the same size as an 8-pin DIP package, give or take.

They're pretty capable little chips... a bit of just about everything.