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Type: Posts; User: ragi

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  1. Closed: What is the basic knowledge required to become embedded engineer

    Hi, I am an engineer and have 3 years of experience in chip testing(post silicon validation). Now have a career gap of 2 years. I am planning to restart my career as embedded firmware engineer. I...
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    963

    Closed: Re: need help to find code for FT234XD

    Hi ,

    I am not getting the address/register details to set the pin 6 as active low. Could you please send the details if you found it.

    Thank you in advance.
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    963

    Closed: need help to find code for FT234XD

    Hi all,

    FT234XD is one USB to UART chip from FTDI, it requires some FW to flash into the same device.
    It configures GPIO pin 6, and I need to define this pin as Active low output. I am not...
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    835

    [PIC]Closed: Usart receive interrupt

    Hi all,

    I never used interrupt function before and want to use interrupt for usart receiver i.e I just for to glow an LED or set a flag whenever a byte or string is recieved. Help me in writing...
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    711

    [ARM]Closed: how to test a debugger

    Hi everyone,

    Can anyone tell me how to test whether debugger is working fine or not?.
    I am using XDS100 v3 debugger. When i try to debug my arm controller using CCS IDE it is giving Debugging...
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    777

    [SOLVED]Closed: kxtf9 tri-axis accelerometer

    Hi all,

    Has anybody used kxtf9-4100 tri-axis accelerometer??. I need its I2C address and registers.
    It would be better if you have any i2c code for it also.

    Thank you in advance.
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    675

    Closed: Dac spi code for amc7812

    Hello everyone,

    I want to generate a sine wave signal from AMC7812 DAC 24bit device. I am giving inputs to dac through spi code. To wake this device up "6B 7F FE" code must be sent and further...
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    775

    Closed: SPI interview questions

    Hi all,

    Can anyone tell me what interview questions will be asked on SPI and PIC controller ????

    Thank you in advance.
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    665

    [PIC]Closed: Re: Part no of PIC18Fxxxx

    Thank you for sending this info.

    I guess I asked wrong question , Actually I wanted to know what 18 ,F , 45 , K , 20 in PIC18F45K20 specify???
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    665

    [PIC]Closed: Part no of PIC18Fxxxx

    Hello everyone ,

    Can any one tell what does the part name of PIC18FxxKxx (ex: PIC18F45K20) specify???

    Thank you in advance :)
  11. Closed: Re: High-speed signals follow the path of least inductance

    I agree that current flows via lower resistor path. But When it comes to high speed signal does it follow the same.???
    Because what I think is reactance is directly proportional to either frequency...
  12. Closed: High-speed signals follow the path of least inductance

    Hello every one ,

    Why High-speed signals follow the path of least inductance ??
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    1,537

    Closed: New to RTOS , need guidance

    Hello everyone,

    I am very new to RTOS. I have basic knowledge about embedded programming. And I am given a task that i should use the SYS BIOS RTOS to run a simple example ( say LED BLINK) on...
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    Closed: Re: AD5290 can not reach exact 0 volt

    Hello,
    Thank you all for helping. Now we are able to get 27mV offset for 0x00 input code. We changed the 10k pot to 100k pot. Before it was 250mV for 10k pot at zero scale error.
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    [ARM]Closed: Sys bios rtos for msp430f5438a

    Hi all,

    I am very new to RTOS.I am using CCS IDE. Trying to build RTOS (TI SYS BIOS) for msp430f54378A evm board. Can any one tell how to use RTOS for a simple program. Please provide any link or...
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    1,736

    Closed: Re: AD5290 can not reach exact 0 volt

    Hello sir,

    Initially I was using 10k pot and max volt was 20V. So according to your calculation I am getting expected offset around 250mV. Please find the below schematic which we used for ad5290...
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    7
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    1,736

    Closed: AD5290 can not reach exact 0 volt

    Hello,

    I am using AD5290 DPOT to generate voltage from 0 to 20V in steps of 20V/256. Through spi data is sent to dpot input. I know that due to some residual resistance we cannot reach exact max...
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    710

    [PIC]Closed: how to measure pll with internal oscillator

    Hello everyone,

    I am working on pic18lf24k22. I can measure internal oscillator speed on pin RA6. But I dont know at which pin to measure PLL frequency. Do anyone know ???

    Thank you in advance.
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    [SOLVED]Closed: PIC GIPO functionality problem

    Hi all ,

    I have written code for PIC18LF24K22 to work as slave. When I sent data from SPI master(CHEETAH Adaptor) it is not able to receive the data. So I checked input functionality of receiving...
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    1,164

    [ARM]Closed: Re: Need help for LPC2148

    I am using ARM7 Eval kit, Model No: TSWA7EK.

    Yes Development board has inbuilt bootloader. I have created hex file using flash magic. But the problem comes when dumping hex file into the chip. It...
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    1,164

    [ARM]Closed: Need help for LPC2148

    Hello,

    I am very new to LPC2148. And I want to do simple LED blink example program in the beginning . I have written code but I do not know how to dump hex file. Is it done using UART ????
    Can...
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    Closed: re: SPI code for pic18f45k20

    Thank you very much for this code.. This helped me to develop a simple spi program.
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    761

    Closed: SPI code for pic18f45k20

    Hello ,

    Since I am very new to microcontroller, can anyone please send example code on spi of pic18f45k20.??I am using MPLAB IDE and pickit debugger.
    My actual task is as given below.
    Here PIC...
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    Closed: Re: problem with pic18f45k20 uart communication

    I tried with 56Kbds and 38Kbds , in this case output is worse than 115.2kbds. I am able to see my transmitting bits at TX pin of PIC at the baud rate 115.2kbds through oscilloscope but not in...
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    Closed: Re: problem with pic18f45k20 uart communication

    Thank you sir :) :)

    I am able to get baud rate nearly 115.2k . and I can see at least a data on hyper terminal but not the one i am transmitting. I guess it is because of baud rate error.
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