• Missing Interrupt Sources Table in MCF52235 Reference Manual

    Hi! I have "updated" my copy of the reference manual (which was Rev.4) to the lattest available in the website (which is Rev.7) and I have found that the Interrupt Sources Table (which was Table 15-6) is missing. In ...
    Ruben Valls Blasco
    last modified by Ruben Valls Blasco
  • Using WDEBUG with MCF5235

    Hi,   I am try to generate an interrupt when a particular area of memory is written to. The debug  support feature of the MCF5235 seems simple enough as described in chapter 32 of the RM however I can't ...
    Ahlan Marriott
    last modified by Ahlan Marriott
  • 5223X Interrupt Controller -- setting levels/priorities

    I'm doing some enhancement work on a project using the MC52233 ColdFire V2 MCU; the original development team is gone. It uses the Interniche TCP/IP stack (free version). My question has to do with setting interupt pr...
    Scott Trappe
    last modified by Scott Trappe
  • Bug in MCF54452 FEC broadcast reject function?

    Hello everyone,the following is my problem during MCF54452 FEC:   I need to reject broadcast frame accord to the flux of broadcast to avoid broadcast storm.So, I enable fec accept broadcast in on...
    pang jiyao
    last modified by pang jiyao
  • Monitoring the UART RX signal

    I want to be able to read the logic level on the UART1 RX pin while the pin is assigned to the UART RX function (not as a GPIO). The SCI peripheral in the MC9S08 MCUs allows me to do this (the reference manual says so...
    last modified by RogerC52
  • MCF54453 Clocking Module Question

    Hello,   Just a quick question about the pin connections on the clocking module:   What do you suggest I do with the PLLTEST pin (D15)? I am using the eval kit schematic as a reference however this ...
    Shahzad Malik
    last modified by Shahzad Malik
  • Confusion on priority levels with exception handlers

    I'm porting firmware written for 68040 using another vendor's toolset into a Coldfire application for V2 (MCF52100) using CodeWarrior 10.1.  The board is our custom design with the Coldfire replacing the 68040.&#...
    Michael Walker
    last modified by Michael Walker
  • CompactFlash slot on 5484LITE

    Hi, I'm running Linux on my 5484LITE evaluation board per the document "BSP Targeting the Freescale ColdFire M547x/M548x." using LITB.  I got that much working, but the system must boot of an...
    Jim Mood
    last modified by Jim Mood
  • MCF51JM Random ,extra output transition after input capture ISR,

    Using CW 6.3   I have an input capture,  capturing both edges of a square wave,  measuring the periods based on the delta of the timer capture,  in this ISR I toggle an output to drive some instr...
    Robert Bailey
    last modified by Robert Bailey
  • I really built a RAM bootloader for classic 68K CPU

    I am interested to design a small 68K system and I am working at it for some years. There are several prototypes (wire based) as well one PCB design using the 68SEC000.   One prototype is in working order to a...
    Alex Finn
    last modified by Alex Finn
  • Linker errors with console IO

    I created a new project (using CodeWarrior Development Studio 6.3) for the MCF51QE128.    This is the third project I've created and the only one that is giving me linker errors:   Link Error : Unde...
    James Millard
    last modified by James Millard
  • Creating a new project for custom board using Processor Expert and MQX

    Hi,   Is it possible to create a project that uses both processor expert and MQX?  I have a custom board based on the MCF52258.  I can create a project using PE, and it runs.  I would like to add...
    Allan Lunk
    last modified by Allan Lunk
  • MCF5235 and standard id from data can

    Hi everybody,   I am currently designing an application onto an MCF5235 and I would like to get data from flexcan with standard id. The datasheet show me an bit named IDE but I don't understand if i have to rea...
    Christophe Varin
    last modified by Christophe Varin
  • 52257 D4D demo rendering very blurry fonts

    Finally got the custom board driven by the 52277 working with a 800x480lcd to load and run the demo. The fonts seems to have double edges as in the attachment shown. I tried to change some timing numbers and didn't se...
    last modified by Leong
  • Looking for MC68020 app. note AN944

    I'm trying to locate a very old Motorola application note on the MC68020:   AN944: "MC68020 and MC68881 Platform Board for Evaluation in a 16-Bit System"   One person who had a hard copy of the applicati...
    Charles MacDonald
    last modified by Charles MacDonald
  • burning elf file instead of S19 from bootloader?

    Hi, I wonder if there is any example of loading ELF file instead of S19? the S19 file from an executable is 260kB and the ELF is only 60KB. What i wanted is to download the image to a section of on-chip flash of 52259...
    last modified by Leong
  • TWR-LCD demo program not reading uSD card

    I've been developing code on the TWR-LCD without problem, until I added the microSD card.  So I went back to the example programs provided with the board.   The Demo for TWR-LCD-JM128 includ...
    Douglas Triman
    last modified by Douglas Triman
  • MCF54450, SDRAM signals are switched, workaround?

    Hello everyone,   My coworkers and I have a custom-made PCB with two 54450 processors on it, each with its own SDRAM chip. However, there was a mistake in designing the PCB, and the SDRAM's DM signals are switc...
    Kyle Edwards
    last modified by Kyle Edwards
  • MCF52259 CMX USB stack  Problem

    Hello everyone, i want to realize the communication from the board(MCF52259) to the PC, using the CMX usb stack with the CDC class,my project is CMXUSB_LITE_MCF5225X_1.0 download from freescale website, but when i tr...
    Cathy chang
    last modified by Cathy chang
  • 5329 Cache configuration

    I am using a 5329 with two 64 MB SDRAMs. The documentation on the cache Access Control Registers is ambiguous. How would I set the mask bits? What is the maximum address space for an Access Control Register?
    Tim Watko
    last modified by Tim Watko