EmbeddedRelated.com

Coding MAX3421E and PIC18F4550

Started by urefowei in comp.arch.embedded15 years ago 3 replies

Hi.. Can anyone help us Code MAX3421E and PIC18F4550 we are doing a thesis on a flash to flash bridge This project aims to develop...

Hi.. Can anyone help us Code MAX3421E and PIC18F4550 we are doing a thesis on a flash to flash bridge This project aims to develop microcontroller-based device that can handle data transfer from a USB storage-device directly to another USB storage-device. The previous project?s device transferring capabilities were limited in terms of data size, file types, and transfer rate. we are


FAT File System module Implementation in an embedded host

Started by urefowei in comp.arch.embedded15 years ago 2 replies

HI ALL!!! I would like to be advised how this link helps.. > > > http://elm-chan.org/fsw/ff/00index_e.html ...

HI ALL!!! I would like to be advised how this link helps.. > > > http://elm-chan.org/fsw/ff/00index_e.html http://elm-chan.org/fsw/ff/00index_e.html It actually leads to a discuusion on a FAT File System Module that can be implemented in an embedded host.. What we wanna do is use a PIC18F4550 and a MAX3421E usb host controller and create a device that can perform file transfer b


How to Interface microcontroller with Mobile using USB

Started by rememberramu in comp.arch.embedded14 years ago 4 replies

I am doing a project where I need an interface between mobile phone and microcontroller. Actually I need to process text message...

I am doing a project where I need an interface between mobile phone and microcontroller. Actually I need to process text message on microcontroller. The mobile phone has USB output, and I found that PIC18F4550 has USB input, but both of the device acts as slave not as host. I also found that some mobile phones like Nokia 6610, Nokia 6610i and, Nokia 6210 have serial port which I can interface wit...


ICD2 Driver

Started by Ezekiel west in comp.arch.embedded11 years ago 3 replies

I am Ezekiel. I, and I am trying to download a program into the chip ( microchip pic18f4550) with window7 but could not be able to do it. One...

I am Ezekiel. I, and I am trying to download a program into the chip ( microchip pic18f4550) with window7 but could not be able to do it. One of the major problems, was that the system will be demanding for ICD2 USB driver in order to successfully carrid out. My question is Do anyone know how to downlaod an ICD2 USB Driver for window7 or Do anyone know the site i will visit to be able to ...


PIC18F458

Started by Chris Hiler in comp.arch.embedded20 years ago 1 reply

Does anybody know if there is a demo board available for the PIC18F458? Any specific one that you might want to recommend? I saw a couple on...

Does anybody know if there is a demo board available for the PIC18F458? Any specific one that you might want to recommend? I saw a couple on Microchips website, and they didn't look like exactly what I'm looking for. I need to implement a group 2 slave for DeviceNet, using CAN. Thanks, Chris


Migrating from Pic CAN to ECAN

Started by Rich Walker in comp.arch.embedded18 years ago 1 reply

Hi, I'm supposed to be moving our boards from the PIC18F458 to the PIC18F4580, which has the ECAN on it. At the moment, I'm not having...

Hi, I'm supposed to be moving our boards from the PIC18F458 to the PIC18F4580, which has the ECAN on it. At the moment, I'm not having a great deal of joy... Has anyone else managed a migration from an Fxx8 to an Fxx80 pic? cheers, Rich. -- rich walker | Shadow Robot Company | rw@shadow.org.uk technical director 251 Liverpool Road | need a Hand? London ...


CAN-settings for PIC18F4585

Started by Mich in comp.arch.embedded17 years ago 2 replies

Hi, I 'm programming a PIC18F4585 with MPLAB. I want to use the CAN option and I have made the basic C and H files with the aplication maestro...

Hi, I 'm programming a PIC18F4585 with MPLAB. I want to use the CAN option and I have made the basic C and H files with the aplication maestro of Microchip. I 'm working on a clock frequency of 40MHz. These are the settings I have calculated for a baudrate of 125k. #define BAUD_RATE_PRESC 16 #define SJW_TIME 1 #define SAMPLES 1 #define PROP_TIME 2 #define PH_SEG_1 4 #define PH_SEG...


Problems about pic thermometer

Started by Novel in comp.arch.embedded15 years ago 3 replies

Now I am doing a pic thermometer which use the LM19 temperature sensor to measure the temperature and display on the 2*16 LCD...

Now I am doing a pic thermometer which use the LM19 temperature sensor to measure the temperature and display on the 2*16 LCD without backlight. And I have a pic18f45k20 microcontroller chip and 4504N adc converter. I have connect the temp sensor to pin 9 of the pic18f45k20. Now I just want to ask who can give me help with the codes to let this system works. Thanks.


PIC based Data Logger - Need slick search algorithm - any ideas ?

Started by Anbeyon in comp.arch.embedded16 years ago 6 replies

Hi I'm hoping someone out there might have a good idea how I might solve my dilema. I have a PIC18F4620 and am using it as a data logger. ...

Hi I'm hoping someone out there might have a good idea how I might solve my dilema. I have a PIC18F4620 and am using it as a data logger. Storing logged data in an external SPI bus connected Serial Flash memory. The serial Flash is 16Mbits or 2Mbyte. The Serial Flash is to be used as a circular buffer and end users will request the logged data by Record number or by timestamp. (T...


SPI bus problems with PIC microcontroller

Started by sandeep in comp.arch.embedded17 years ago 6 replies

Hello All, I am using PIC18F6410 and interfacing it to Linear technology's LTC2704 ( 16 bit DAC ). I am checking the data signals on the...

Hello All, I am using PIC18F6410 and interfacing it to Linear technology's LTC2704 ( 16 bit DAC ). I am checking the data signals on the SDO pin ( MOSI pin of the SPI bus ) using a USB based Logic Analyzer. When the pins of the Logic Analyzer are attached to the SDO pin, the DAC is able to recognise the SPI command and acts accordingly, but when I remove the logic analyzer connections...


Requesting help from EAGLE PCB users

Started by Anonymous in comp.arch.embedded18 years ago 3 replies

Hi all, I'm using the EAGLE PCB layout editor and absolutely love it. It's so much easier than other software I've worked with. I am,...

Hi all, I'm using the EAGLE PCB layout editor and absolutely love it. It's so much easier than other software I've worked with. I am, however, running into a problem with TQFP packages and the autorouter. If I bring in a TQFP package (e.g. PIC18F65J10) and a 8 pin header and make 8 random connections from the PIC to the header, and then go into the "Board" mode and use the autorouter......


DHCP client on PIC Micro

Started by AbsoluteSoftware in comp.arch.embedded19 years ago 1 reply

Hello. I am embedded programmer working on a project implementing Ethernet functionality. The hardware is a PIC18F6620 and the TCP/IP stack...

Hello. I am embedded programmer working on a project implementing Ethernet functionality. The hardware is a PIC18F6620 and the TCP/IP stack was based on Jeremy Benthams TCP/IP Lean. The TCP/IP stack acquires its IP address through DHCP but I am having problems with some DCHP servers. In its raw state Jeremy Benthams code worked with the first server we tried it with but not the second. T...


usb problem in a embedded system

Started by mavaec in comp.arch.embedded17 years ago 3 replies

Hi, I'm developing an embedded system which can work as an USB host. It is based on the PIC18F6622 mcu, and the MAX3421E USB driver. While...

Hi, I'm developing an embedded system which can work as an USB host. It is based on the PIC18F6622 mcu, and the MAX3421E USB driver. While working as USB host, the system should communicate to any flash memory stick. At the moment, I've tried 4 different memory sticks, and just 2 of them work fine, so it is possible to read/write files from/to them (all 4 devices work fine when plugged to a ...


Four RS232 ports on PIC

Started by Miem in comp.arch.embedded18 years ago 3 replies

Hi, I want to ask expert advise how can I create four RS232 interface on a PIC microcontroller? (I'm planning to use...

Hi, I want to ask expert advise how can I create four RS232 interface on a PIC microcontroller? (I'm planning to use PIC18F6680) Thanks, Miem Chan miemchan at gmail . com


PPM signal decoding and driving 10 RC servo motors

Started by Anonymous in comp.arch.embedded18 years ago 2 replies

Hi All, Is there an open source PIC project out there which can do PPM signal decoding from a RC (Radio Control) transmitter and drive 10...

Hi All, Is there an open source PIC project out there which can do PPM signal decoding from a RC (Radio Control) transmitter and drive 10 servo motors with a PIC (PIC18F6680) and a CD4017 decade counter? Appearetly some how using a CD4017 decade counter with a microcontroller helps to minimize the processing load on the controller to manage multiple RC servos. (Do you know how?) Aaro...


need some help programming a pic

Started by david in comp.arch.embedded16 years ago 1 reply

I have some hardware that has a PIC18F6680 pic cpu. This is older hardware that is non programmable that we are starting to replace with...

I have some hardware that has a PIC18F6680 pic cpu. This is older hardware that is non programmable that we are starting to replace with a reprogrammable version. The newer version is the basically the same, but has a maxium max3233e rs232 chip, and a mini headphone jack that we connect to a laptop to program with vendor software via a laptop w/serial port. What would be the easiest way to re...


Microncontrollers with ethernet

Started by Philipp Klaus Krause in comp.arch.embedded17 years ago 7 replies

I'm looking for cheap (less than 5 ? at 100pieces) microcontrollers with ethernet. So far I found only the PIC18F66J60. Are there any...

I'm looking for cheap (less than 5 ? at 100pieces) microcontrollers with ethernet. So far I found only the PIC18F66J60. Are there any alternatives? Philipp


Simpliest ethernet microcontroller

Started by ivanatora in comp.arch.embedded16 years ago 5 replies

Hello all, I'm new to microcontrollers - I have a little experience with PIC16F88, programming it in C and ASM but I want something...

Hello all, I'm new to microcontrollers - I have a little experience with PIC16F88, programming it in C and ASM but I want something different and more cool - sending data or controlling stuff over ethernet! :) What is the simpliest or the most popular controller for that? I've seen there are some PICs with ethernet like PIC18F66J65 and it is available here, but TQFP is a little hard for sold...


How accurate/tolerant is the PIC USART clock rate?

Started by pome...@hotmail.com in comp.arch.embedded18 years ago 10 replies

I am looking at a design which uses a PIC18F8520 whose USART is connected to a PC serial port running at a fairly high data rate. I am also...

I am looking at a design which uses a PIC18F8520 whose USART is connected to a PC serial port running at a fairly high data rate. I am also looking at the design of a serial port instantiated in an FPGA connected to the same data stream in an RS-485 network. Having to deal with the internal details of the FPGA "USART" makes me wonder about the internal details of the PIC USART. FOr instanc...


SD card problem!

Started by Tech350 in comp.arch.embedded15 years ago 6 replies

Hello all, I'm new to this site and this is my first post. I have started a SD card project where I want to interface the SD card with my MCU....

Hello all, I'm new to this site and this is my first post. I have started a SD card project where I want to interface the SD card with my MCU. I am using a PIC18F8520 MCU. Well before I started working with the SD, I worked on the DAC module successfully (I mentioned this because DAC uses SPI communication as well). The code for the SD card works until I reach the the command to check if the SP...