Search found 18 matches

Hi,

I'm using a 24LC512 with the 24512.c driver. I'd like to hook up another on the same bus, which as I understand it from the datasheet I can do by wiring the pins on the chips appropriately to s ...

Hi Ttelmah,

Thanks for the ideas. I'm going to do as you suggest and see if I can replicate the fault with a simple host running on the computer in place of mach3. By VBS did you mean visual basic? ...

Hello,

I'm trying to create a simple modbus device based on ex_modbus_slave.c, but I'm running into some problems. I'm hoping that someone more expert than myself will recognise the symptoms and ha ...

Hello,

I'm using an 18f2431 and I want to be able to have two pwm outputs and also independently use two port b pins as inputs using the interrupt on change feature.

I was intending to use the p ...

Okay, I've just realised that (of course) I hadn't correctly configured trisc. Now that I've done this I've stopped getting the erroneous int_rda interrupts.

Hello,

I'm trying to get a simple interrupt driven serial program going on my 16f876a. At the moment I just want my program to take all bytes received by the usart and stick them in a buffer, then ...

Ok. Please let me know if this solves the problem for you.

Good luck!

I'm sorry to say that this problem has temporarily defeated me.

After I posted the messages above I decided to have a shot at getting it working with Microchip's C18 compiler. Initially I tried th ...

...Oh, and I've also tried using USB Monitor to see what's going on. Here's the output when I plug the pic in:

000001: Get Status Request (DOWN), 27.02.2007 19:21:27.7656250 +11 ...

I'm not - it's supposed to be an HID device, which as I understand it doesn't require a driver.

The other VSS pin is now connected, and I've experimented with a 470uF capacitor (as I've seen suggested elsewhere on the forum). And I've commented out the USB sense pin line.

Unfortunately still ...

Ok,

I've now changed the fuses line to

#fuses NOPROTECT, BROWNOUT, BORV20, NOWDT, NOLVP, VREGEN, PUT, XTPLL, PLL1, CPUDIV4

and I've increased the capacitance on Vusb to 320nF

...but unfort ...

Hi there,

I'm trying to get the supplied ex_usb_mouse.c example working. I don't have the project board so I've built a circuit with an 18f2450, with a 4Mhz ceramic resonator. I've used the NES con ...

Ok, that worked! Thanks.

I'm now going to go step by step adding to your program until I locate the difference that's preventing my version from working.

Hi,

Thanks for the reply.

The strange things you point out are mostly due to the fact that I re-wrote a much bigger program to create this simple test program and left in a few unnecessary thing ...