westaust55
Moderator
Having spent some days "playing with the microMega corp uM-FPU V2 floating point math coprocessor chip I decided to pen a few words that might hopefully add to the existing microMega documentation specific to the PICAXE chips.
A Search here found that in the past there have been a number of threads about the uM FPU V2, and the more powerful V3, coprocessor chips most about problems experienced.
In the attached tutorial type document, I hopefully clarify a few issues and help newbies to this chip get under way even faster.
My work has been done using the i2c comms connection although SPI comms is also possible for "M" series PICAXE chips.
I have tried not to duplicate what is already covered in the microMega documentation to any great extend so it is still necessary to download the various documents from MicroMega to become fluent in the use of the uM-FPU V2 chip.
The uM-FPU chips are available from Rev Ed's TechSupplies online store in the UK and from MicroZed here in Australia.
Little Bird Electronics also stocks the V3.1 chip but my attached tutorial does not specifically cover that "bigger" chip.
Maybe more PICAXE users will look into the uM-FPU chips .. .
EDIT:
Realised I could assign the value in register A to that in register B (ie reg A = reg B) for any register A = 1 to 15,
so attach a Rev B version of the words with the necessary adjustments.
Have fun in a PICAXE world
A Search here found that in the past there have been a number of threads about the uM FPU V2, and the more powerful V3, coprocessor chips most about problems experienced.
In the attached tutorial type document, I hopefully clarify a few issues and help newbies to this chip get under way even faster.
My work has been done using the i2c comms connection although SPI comms is also possible for "M" series PICAXE chips.
I have tried not to duplicate what is already covered in the microMega documentation to any great extend so it is still necessary to download the various documents from MicroMega to become fluent in the use of the uM-FPU V2 chip.
The uM-FPU chips are available from Rev Ed's TechSupplies online store in the UK and from MicroZed here in Australia.
Little Bird Electronics also stocks the V3.1 chip but my attached tutorial does not specifically cover that "bigger" chip.
Maybe more PICAXE users will look into the uM-FPU chips .. .
EDIT:
Realised I could assign the value in register A to that in register B (ie reg A = reg B) for any register A = 1 to 15,
so attach a Rev B version of the words with the necessary adjustments.
Have fun in a PICAXE world
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