Another thing that could be causing problems is that SEROUT2/SERIN2 are software bit-banged (no hdw UART involved),
so device B must be sitting waiting at the SERIN2 for the first start bit before...
Are these PICs on the same PCB or on each end of a long cable?
Cable (well PCB traces too of course) has capacitance, with a 10k resistor you're forming quite an RC-filter (relatively speaking)...
Yes it could be a problem. Try with no resistor and see if the problem is in your code or just the lack of power on the link. Then try max 1K resistor.
Hi, I have two devices communicating with SERIN2/SEROUT2. Device A, a PIC18F4550, sends data to device B a PIC16F19197. I'm receiving the data at device B using SERIN2, but like 1 out of 5 times I...
this can not work as you set the qualifier to 0x0d as per my example , ProgIDRx will always be 0x0d
untill you change it , serin will never change it
...
Published on - 2nd July 2010 16:12
Number of Views: 7476
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: SERIN2 Receiving Wrong Data
Another thing that could be causing problems is that SEROUT2/SERIN2 are software bit-banged (no hdw UART involved),
tumbleweed Today, 13:34so device B must be sitting waiting at the SERIN2 for the first start bit before...