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Recent content by contagiouseddie

  1. contagiouseddie

    Soldering LP3 package Component

    lp3 package Hi Selva, Look at this tutorial: https://www.sparkfun.com/commerce/tutorial_info.php?tutorials_id=100 Hope it helps.
  2. contagiouseddie

    Where can I purchase Low Cost GSM Modules

    gsm gprs module bangalore BENQ has cheap GSM/GPRS modules about USD40. But, they have stopped producing them because there are a lot of companies in China making them way much cheaper (~USD25 - USD30). But you can still find lots of them in the market.
  3. contagiouseddie

    Ethernet Switch (Port Expansion)

    Hi Guys, I need to expand my ethernet port of Freescale MFC5208 processor to 2 using a switch. This processor comes with an ethernet MAC built-in. I can't find any PHY switch that does not include the MAC? Is this idea still possible or there are other solutions? Thanks in advance...
  4. contagiouseddie

    The power and ground layer for signal lines routing in 4 layer PCB

    Re: 4 Layer PCb Routing I'm adding another 2 layer to the board, so now it's 6 layer. The circuit has external memory interface (SDRAM) but running at 48 MHz. The microcontroller runs at 55 MHz. I guess 6 layer is enough for this project. The ground and power plane will solely for themselves...
  5. contagiouseddie

    The power and ground layer for signal lines routing in 4 layer PCB

    Hi Guys, I'm starting my 1st 4 layer PCB. I'm a bit divided on signal lines routing on the layers. I'm not sure on how much can we use the power & ground layer for signal lines routing. I know I should avoid using both of them as they are supposed to be dedicated ground & power plane...
  6. contagiouseddie

    Intelligent battery charger circuit

    intelligent battery charger schematic Hi There, I just came back from a Microchip battery charging seminar and lab session. I have been using TI's BQ series for quite some time and I guess they are better than Microchip's one in term of minimal external components, charging current capability...
  7. contagiouseddie

    Building the PICKit2 from scratch

    where to buy pickit2 PICKit2 started off as a programmer when it was 1st introduced. I remembered burning them in the very 1st day I use. But, at this moment there's a lot of devices that can be programmed and even debug, running in MPLAB although the dsPIC & PIC24 series has not been able to...
  8. contagiouseddie

    USB Detect on AT91SAM7

    Hi everyone, I need to used one of the interrupt pins for detecting a USB connection on a AT91SAM7 MCU. But, this would mean that I had to sacrifice one of the IRQ pins which is valuable. Is there any other method to do this? Because this pin will allow me to enable the pull-up on the USB+...
  9. contagiouseddie

    LPC2292/94 External Memory Interfacing

    I thought using of LPC24xx too. But it's a bit hard to obtain here. So, I decided to go for some other ARM vendor as SRAM is seeing quite the end already. Thanks.
  10. contagiouseddie

    LPC2292/94 External Memory Interfacing

    Hi Everyone, It is possible to interface LPC2292/94 with SDRAM instead of SRAM? In the user manual, it stated the external memory controller supports only SRAM. Thanks. :D
  11. contagiouseddie

    MSSP port in PIC (SPI interface)

    ccs spi Hi Pepillo, You should include your spi_hw.h in your main.c and I guess you should be able to compile after that. Good to see that you split your functions into files based on functionality, a good practice for code modularization. I have yet to try the AD7708 IC. But currently I'm...
  12. contagiouseddie

    MSSP port in PIC (SPI interface)

    ccs spi code You need to configure only a few thing in the SSPCON1 register. From this register, you can select operation as Master (lowest 4 bit) and corresponding clock (also with these bits). The fastest clock is FOSC/4. SO if your PIC is running at 40 MHz (internal PLL enabled), maximum...
  13. contagiouseddie

    Help needed for CY8C26443 PSoc home made Programmer

    programmer cy8c26xxx Hi, I'm afraid that the 25/26 PSoC families required very accurate data clock for programming. Hence, if the clock source were to be from a PC, it is not adequate. Newer family does not needs very accurate clock.
  14. contagiouseddie

    Design engineer in malaysia

    best electronic engineering job malaysia Hi Martin, I have met you before in one of those Freescale Seminar on their 8 pin MCU in Sheraton Subang. How is Free To Move doing?
  15. contagiouseddie

    C compiler for dsPIC33

    dspic compiler CCS have been planning to release the dsPIC compiler for ages if I can remember. I don't think so there's any good waiting for something which is so uncertain. I think the only stuff they disable is the code optimization after 60 days. Other than that it is similar with the full...
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