If you are intending to read a odbi 8192 data stream I think u need to send some bytes to the ECM to get the 8192 baud data coming from the car. Excuse if this isnt about aldl car ecm communication,...
Type: Posts; User: RYTECH; Keyword(s):
If you are intending to read a odbi 8192 data stream I think u need to send some bytes to the ECM to get the 8192 baud data coming from the car. Excuse if this isnt about aldl car ecm communication,...
so i guess i actually have 2 issues still, i cant sleep (neither can my device) and the A/D sometimes acts "wonky" depending on the state of the usb pluggedness.
Does the USB operation of the 18F4550 have a direct effect on the A/D channels..? Let me explain why i ask....
Case a) when i power up my circuit the A/D values float - not 200 or 300 millivolts -...
Thanks Darrel that did it for me!
Should i wire up an input to the USB V+ and monitor that in addition to the IDLEIF SOFIF registers? USB ---4.7k ----pic input --100k---GND?
Darrel the "extra" data is for parsing strings that come in after my oncomm event in visual basic. I get the stuff in between the letters :) - I haven't successfully used "binarymode" in vb .....
Hi,
I have some mostly working code now using your interrupts thanks to your "hint" about the endpoints earlier...
I was reading another thread that was about "If plugged" - The solution works...
Just gotta figure out now why my adc is all over the place
k i think your hint has moved the situation forward.. i'm now getting some output... :) thanks ... I know I know im a big noob
ahh i see what ur saying darrel.. i' used your code which points to endpoint 1.. i'm going to try it changing it to 3
I wasnt aware that the interrupt system was specifically for HID devices... anyways i'm back to trying to make my code work... it's really annoying.. the device works as expected, until i try and...
thought i'd post my setup:
MPASM 5.20
PBP 2.50b
MCS 3.0.0.5
'
' RCUSB ; Edited 'USBDEMO' from Steve and Darrel
' =======
'
' File name : RCUSBCOMM_INT.pbp
' Company : Rytech Computing
' Programmer : Steve...
I realize i'm likely behind about 2 years on this one.. i've been trying to modify Mister E / Darrel's USBDEMO code so that it works with my existing setup (a vb app that aquires 8 bit a/d result...
Skimask ur right it is quite old, I regularily refer to archived or old posts for help... I welcome and encourage people to post to old threads... u never know when new information might make the...
A fresh start today, I re-downloaded the Microchip Framework and (re)programmed the 18F4550 with the precompiled bootloader... seem's to have resolved the issues I was experiencing... anyone have...
just to update the thread in case anyone else is actually reading it... the pic seems to work fine when I program the mouse demo (or my cdc application code) using the usb bootloader, but, a) it wont...
jeesh... now it's reverted to operating normally after I did nothing... I thought USB was supposed to make things easier! lol
when I program the chip (while holding down RB4) with the mouse demo it works as expected when started with a cable plug, does not work when MCLR rebooted. The HID works when fresh plugged and does...
scratch that... what was working perfectly yesterday is now having major issues...grrrr.... when i hold down RB4 button and press mclr button the pic reboots showing up correctly as the "Microchip...
Hi,
I've (finally!!!!) got a working "FS PICDEM" type 18F4550 protoboard (I made my own) with rb4 and mclr using pushbuttons to set bootloader mode etc. It works great (finally, 3 protoboards and...
Thanks I'll check that out...
I'd fork out the 10 -25 dollars for a kit / chip that alloud output to a tv monitor via simple coax / composite connection (ntsc? North America). Please let me know if you intend to offer such a...
Hi people... sorry for the delayed response, i've gotten somewhat sidetracked designing a perpetual motion machine...lol...
as for the power system.. I would like it to a) recharge the batteries...
Thanks I've posted that document in case others wish to review it.