I didn't even realize that MCS & MCSX had a Serial Communicator [blush]. Been using them for... dunno... 20+ years and never noticed. The only defence I have is I'm only an occasional user/coder.
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I've been having some issues lately, not with that device specifically but with MCS Serial Communicator (or so it seems). I'm communicating with my board using simple ASCII commands at 57600 baud....
what problem is the active pullup bus chip going to solve ?
it will make zero difference to pbp's bit-banged commands and the mssp port would have no issues at 400kHz bus speed anyway [providing bus...
I would say, that for relatively simple coding routines, PBP knowledge of AI had been improved, but just when you ask something more complex, you'll get this:
Just checked and JLCPCB doesn't have any in stock. They don't have any other I2C accelerator chips (that I can see). Now I understand the gripes on the...
That graph shows a rise time of 1uS by only using a 15.8k pull-up resistor. It also shows that by using the LTC4311 you get an almost perfect waveform. It looks like this LTC4311 chip is exactly what...
Published on - 2nd July 2010 16:12
Number of Views: 7870
I have been thinking for a while, how to put togeter a simple microstepper controller without using a ready made commercial driver.
At the end, I came up with this simple project capable to drive unipolar stepper motor in three different modes
FULL STEP
HALF STEP
MICRO STEP
The Pic micro used in this work is a Pic 16F628 a powerfull small micro with PWM capability. With this MCU plus a 74HC04 and a74HC86 the controller will produce 20 microsteps out of a nominal motor step.
An additional improvement of this controller, is the capability to accept travel commands of 24 Bits, wich gives to the user the possibility to send positioning profile of over 16 millions steps.
Controller accept commands via TTL serial port @ 9600,n,8,1 and return an (Ack) once the positioning profile has been completed.
Download the zipped MicroStepper.zip file which contains schematic + software + user manual
Also attached is a simple stepper controller example called Stepper_MK2.zip
Re: hserout issues on the 18F26K83
I didn't even realize that MCS & MCSX had a Serial Communicator [blush]. Been using them for... dunno... 20+ years and never noticed. The only defence I have is I'm only an occasional user/coder.
rocket_troy Today, 04:08...