USB to serial

Started by upand_at_them in Piclist15 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


PIC18F2455 USB proto board

Started by leon_heller in Piclist14 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 Piclist12 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 Piclist15 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 on 18f2550

Started by Lez in Piclist13 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...


2550 and usb bootloader

Started by Lez in Piclist13 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...


Serial Communication Between PIC and PC via USB port

Started by s_tanberk in Piclist14 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 Piclist15 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 Piclist12 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 & Ethernet?

Started by mippen2 in Piclist16 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 Piclist11 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 Piclist16 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 Piclist15 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


C18 ADC question

Started by Steve Nance in Piclist12 years ago 7 replies

I'm looking for some sample code that shows how to read an ADC over USB using a 18F4550. I've looked at the MC sample code for the PICDEM FS...

I'm looking for some sample code that shows how to read an ADC over USB using a 18F4550. I've looked at the MC sample code for the PICDEM FS USB board, but it's just too tough to make sense of with all the functions it has. I would like to find something simple if possible. Thanks, Steve ------------------------------------


USB and 18f2550

Started by Lez in Piclist13 years ago 4 replies

I want to programa 18f2550 with nothing more complicated than a usb cable.......... Now I know that first time round I need to serial program...

I want to programa 18f2550 with nothing more complicated than a usb cable.......... Now I know that first time round I need to serial program into it and then.... (a) bootloader into pic (b) assemble all my code starting above the bootloader (say org0x800 etc) (c) have some software to ''send'' this assembled hex file to the pic I have no idea what to use for (a) as they are a few out ...


Pocket-ICD2 programmer

Started by ray xu in Piclist12 years ago 6 replies

Hello, I'm planning to use this programmer (http://www.sparkfun.com/commerce/product_info.php?products_id=6) for my dsPIC. I'm just wondering...

Hello, I'm planning to use this programmer (http://www.sparkfun.com/commerce/product_info.php?products_id=6) for my dsPIC. I'm just wondering that if anyone has used this with a USB to RS232 cable and either did not work or worked; since my laptop (computer I use on the field) does not have a serial port, and I don't want to spend a lot on the USB version. I'm using this as a low-cost alt...


USB GPS to PIC interfacing

Started by demolitron in Piclist11 years ago 2 replies

Hello, I've got a Pharos GPS-500 USB dongle on hand and I was wondering if it would be possible to hook this up to a PIC of some kind. When I...

Hello, I've got a Pharos GPS-500 USB dongle on hand and I was wondering if it would be possible to hook this up to a PIC of some kind. When I plug it into my PC it is detected as a serial port by windows and the data just streams over as ASCII test. Anyone have a direction they can point me in? I've been looking at Microchip's website, but most of the stuff is on peripheral side devices....


making a 18f2550 behave as a pl2303 virtual comport and 16f88

Started by Lez in Piclist14 years ago

Ok, I think I'm biting off more than I can chew here so I'm hoping someone has already done this........ I have used usb/serial dongles with a...

Ok, I think I'm biting off more than I can chew here so I'm hoping someone has already done this........ I have used usb/serial dongles with a pl2303, connected to a pic16f88 and then used the serin serout to communicate to the outside world. Has anyone done this kind of setup with a 18f2550(or equiv) ? As a simple hello world I just want to switch some leds on /off via USB, then I can g...


usb charger

Started by falcosms in Piclist12 years ago

Hi all! Does someone have a schematic for a usb charger? I see some china charger, who have a short circuit between pin 3 and=20 4, and vcc...

Hi all! Does someone have a schematic for a usb charger? I see some china charger, who have a short circuit between pin 3 and=20 4, and vcc in pin1.=20 Charges for ipod and Motorola Q have some resistors between vcc, gnd=20 and D- and D+, the china mp3 player doesnt works in this configuration. []=B4s Marcelo ------------------------------------ to unsubscribe, go to http://ww...


Macintosh Virtual PC MPLAB and the ICD2 on USB, works?`

Started by Dennis Clark in Piclist15 years ago

Hi all, I'm movinf from my cranky PC's to the Mac, and some things don't have open source or Unix options, like MPLAB. While I've...

Hi all, I'm movinf from my cranky PC's to the Mac, and some things don't have open source or Unix options, like MPLAB. While I've gotten compilers and MPLAB to work on Virtual PC 7 (Windows 2K) through the serial port, I'd REALLY like to get the ICD 2 working via USB. Has anyone gotten this to work and would be willing to share tips? The silence on