USB to serial

Started by upand_at_them in Piclist13 years ago 2 replies

Has anyone used a USB-to-serial converter to connect a USB device to a PIC? I would like to be able to connect my Pencam,...

Has anyone used a USB-to-serial converter to connect a USB device to a PIC? I would like to be able to connect my Pencam, which has a USB interface, to a PIC to control it and take pictures and such. But I wonder how the commands would work since the protocol is diff


Stuck with USB :S

Started by Anonymous in Piclist14 years ago 1 reply

Hi all, I'm searching for some way to USB with a PIC :S If someone knows how to interface the 16F628 or 16F877 with a USB ...

Hi all, I'm searching for some way to USB with a PIC :S If someone knows how to interface the 16F628 or 16F877 with a USB device this will be of great help... One thing to say, that I'm searching for making the PIC as a host not as a device, so that the pic respondsto a USB


PIC18F2455 USB proto board

Started by leon_heller in Piclist11 years ago

I recently won the PIClist (the other one) monthly design competition with a little USB prototyping PCB I designed. I've added the details...

I recently won the PIClist (the other one) monthly design competition with a little USB prototyping PCB I designed. I've added the details (including a picture of the board) to my PIC USB web page: http://www.leonheller.com/usb/getting_started.html Olimex has just supplied me with my prize - three prototype boards. I've tested one and it works OK. The boards will be available from ...


USB Embedded Host Newbie

Started by demolitron in Piclist9 years ago 1 reply

Hello, I am looking for a leg up on finding documentation and some guidance on Microchip's embedded USB host. In my project I am trying...

Hello, I am looking for a leg up on finding documentation and some guidance on Microchip's embedded USB host. In my project I am trying to interface a MCU with a USB GPS device. I know there are many Serial TTL GPS modules out there, but the cost is around twice of an off the shelf USB GPS module and I would have to make an enclosure... I thought that there would some good information o...


repost:? USB to Picstart Problem

Started by jxpicciri2000 in Piclist12 years ago

I may have posted this before but can't find a response I'm having a problem connecting MPLAB to my PicStart+ (with upgraded firmware)...

I may have posted this before but can't find a response I'm having a problem connecting MPLAB to my PicStart+ (with upgraded firmware) via a USB port. I'm using a Keyspan USB to Serial adapter and have the correct com port assigned. Can someone help me with this ? May laptops only have USB for the serial connection so it must be a common problem.


USB chip

Started by Mr No in Piclist14 years ago 16 replies

Hi! I'd like to know whether i can communicate PIC with USB. Can i read the output form USB port? Thanks in advance for any...

Hi! I'd like to know whether i can communicate PIC with USB. Can i read the output form USB port? Thanks in advance for any suggestion. Rgds.


USB on 18f2550

Started by Lez in Piclist10 years ago 12 replies

Does anyone know of / have / could write (cheeky!) a simple example program to allow say a set of leds (why always a set of leds?) to be turned...

Does anyone know of / have / could write (cheeky!) a simple example program to allow say a set of leds (why always a set of leds?) to be turned on off from the PC with the PIC connected via USB? I have it working using serial, in fact that was one of my first projects, but with USB it seems I need something a bit more clever on the PC end than just hyperterminal.......... Thats where I'm a...


USB to Serial ?

Started by Dave Mucha in Piclist14 years ago 2 replies

Hi all, I was looking at the serial, 9 pin to USB connector cables. Seems these unit might offer an added benefit, that is, if...

Hi all, I was looking at the serial, 9 pin to USB connector cables. Seems these unit might offer an added benefit, that is, if they work well. It would seem that the power availabe on a USB port could be used to power some small circuit. From what I have


2550 and usb bootloader

Started by Lez in Piclist10 years ago 2 replies

Ok I'm having a little problem.......... i posted on this a while ago but then never had time to follow up, now I have time I cant remember...

Ok I'm having a little problem.......... i posted on this a while ago but then never had time to follow up, now I have time I cant remember most of it..... I'm wanting to put a boot loader into a 2550. I have a programmer, so can do that the non-usb method to start. I have tried one bootloader and I'm getting ''a usb device has been detected'' but when I point XP to the microchip .in...


USB peripheral using a PIC MCU

Started by Mourad Hadim in Piclist14 years ago 3 replies

Greetings, I have used a PIC 16C84-04/P mico-controller to built a USB peripheral for a remote control. The PIC is also needed...

Greetings, I have used a PIC 16C84-04/P mico-controller to built a USB peripheral for a remote control. The PIC is also needed for RF transmissions between the remode and another unit. The USB port seems to function but I am having problems in gettings its SCI talks with th


Serial Communication Between PIC and PC via USB port

Started by s_tanberk in Piclist12 years ago 3 replies

I try to make an asynchronous serial communication between PIC16F628 and notebook USB port. I use USB-RS232 converter and MAX232...

I try to make an asynchronous serial communication between PIC16F628 and notebook USB port. I use USB-RS232 converter and MAX232 components between PIC and notebook. PIC can send data to notebook. It is OK. But when I try to send data from notebook to PIC, it is unsuccessfull. It runs with desktop computer. I think there is a problem between USB


FTDI USB and the PIC

Started by tadaosystems in Piclist13 years ago 1 reply

I've successfully used a bootloader in combination with an FTDI 232BM USB chip for simple serial communication to the PC, but I have a few ...

I've successfully used a bootloader in combination with an FTDI 232BM USB chip for simple serial communication to the PC, but I have a few questions about how best to power it. The application in question is battery powered, so I want to conserve as much as possible. Can I power the PIC off the battery, and use the power rail coming from the USB port w


USB Hub Design

Started by jvoytovich in Piclist9 years ago 3 replies

Hi All, I've got a project that I need advice on involving USB hubs. A customer has a temperature controller with an RS232 interface that...

Hi All, I've got a project that I need advice on involving USB hubs. A customer has a temperature controller with an RS232 interface that we want to move to a USB design. The new interface will appear as a COM port, so the host software will see no change. So far - so good. An idea I had was to implement a second "port" on the controller so that new host software could be added to provid...


USB Programmer

Started by martin de lange in Piclist14 years ago

Microchip released an apnote for the Pickit1 USB powered programmer that needs no external power supply. It uses the USB 5v...

Microchip released an apnote for the Pickit1 USB powered programmer that needs no external power supply. It uses the USB 5v with a pwm voltage booster to get the vpp voltage up to 9-13v adjustable. It uses


USB & Ethernet?

Started by mippen2 in Piclist13 years ago 1 reply

The USB devices from Microchip looks really interesting. Does anyone know if they are planning any flash version of this ...

The USB devices from Microchip looks really interesting. Does anyone know if they are planning any flash version of this controller? I guess that I won't be using them before I'm able to do alot of downloading to them. Is there any simple way to interface a network? It


Recognizing serial ports in Linux/WINE/MPLAB

Started by Jason Hsu in Piclist9 years ago 1 reply

My OS is Puppy Linux. I'm running MPLAB through WINE instead of Windows. My programmer is a PICSTART Plus. I'm using a USB-serial converter...

My OS is Puppy Linux. I'm running MPLAB through WINE instead of Windows. My programmer is a PICSTART Plus. I'm using a USB-serial converter to connect the PICSTART Plus to a USB port on my laptop, which lacks real serial ports. I can figure out the port my PICSTART Plus (with the USB-serial cable) is attached to by typing "dmesg|grep tty" in a shell window. (It's ttyUSB0.) THE PROBLE...


new USB PICs

Started by nford85 in Piclist13 years ago 1 reply

Hi Does anybody know where I can buy some of the new Microchip USB PICs ( 18F2455, 18F2550, 18F4455, 18F4550 ) Thanks ...

Hi Does anybody know where I can buy some of the new Microchip USB PICs ( 18F2455, 18F2550, 18F4455, 18F4550 ) Thanks Nick


PIC - USB Port Wireless Serial Communication

Started by s_tanberk in Piclist13 years ago 4 replies

I want to make serial communication pic and notebook wirelessly. Notebook has no serial port. So I should use USB port directly. I...

I want to make serial communication pic and notebook wirelessly. Notebook has no serial port. So I should use USB port directly. I will use bluetooth USB dongle for notebook USB port. And I will use a bluetooth minimodule for PIC side. Is there anyone who tried something like this before? I wonder if it is possible to make serial communication u


Re: Can't use 4MHz on P16C765

Started by Paul James E. in Piclist14 years ago 1 reply

Yes, it's because of the USB compatiblity issue. If you don't run at 24Mhz or at 6Mhz with a 4X multiplier, you cannot maintain...

Yes, it's because of the USB compatiblity issue. If you don't run at 24Mhz or at 6Mhz with a 4X multiplier, you cannot maintain USB compatibility. So, therefore, the requirement to run at 6 or 24 Mhz. Regards, Jim > I'm having a prob


writing to usb drive

Started by recursian in Piclist14 years ago 1 reply

Has anyone figured out how to write to a usb drive? I would like to make a little box to log to one. Any links, ideas or...

Has anyone figured out how to write to a usb drive? I would like to make a little box to log to one. Any links, ideas or suggestions would be greatly appreciated. Thank you