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Enable and access AUART on iMX28

I designed my own PCB with a iMX28. I based my design on the mx28evk board and I use Yocto + Linux kernel 3.12 + the devicetree for iMX28EVK. Because my design is not the same than the mx28evk, I ...
2
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1answer
303 views

Power cycle error when trying to program/debug HCS08 MCU

I'm trying to program a Freescale MC12311 transceiver IC which has a 9S08QE32 MCU embedded in it: MC12311: Sub-1 GHz RF and 8-bit HCS08 MCU with 32KB Flash, 2KB RAM I'm using a Background Debug ...
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0answers
54 views

Bitbake error when compiling a custom dts for imx28

I designed my custom board with an iMX283 and I need to change the muxing of the pins. I started with imx28evk and I created my own dts but I have a problem when I compile my own BSP-Layer with ...
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41 views

USB Bluetooth dongle into KL25Z

I have a USB bluetooth adapter that I wish to connect to a Freescale KL25Z board. The latter only contains two female USB mini connectors, therefore I plan to establish a connection using a USB mini ...
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0answers
82 views

SPI SBC communication

I am using MPC5748G controller, in that i want to communicate my SPI with the SBC chip on board i.e MC33905, By going through the data sheet I am sending the proper commands to SBC through SPI API's ...
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1answer
122 views

Analyzing the crystal frequency (Bus Clock Frequency) of a HCS12 Microcontroller using an Oscilloscope

I have an HCS12 Mircocontroller and I would like to capture the crystal frequency from the bus clock on a oscilloscope. How do I find out where I should connect my probes on the board to analyze ...
0
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2answers
169 views

How to flag Kinetis bootloader to load new fw?

I have a board that features a Freescale Kinetis K60 MCU and I want to write a bootloader for it but I don't have hardware in place to signal it after a reset to go into "load new firmware" mode vs. ...
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2answers
301 views

Measuring water pressure in a tank

I am trying to build a pressure sensor ( PSI gauge ) that will be used to measure and monitor the pressure in a pool water filter. These generally have a mechanical pressure gauge like this.... ...
6
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1answer
335 views

Still getting link error after switching to banked memory for Freescale HCS08

My program for a Freescale MC9S08DZ128 (HCS08 family) got too big, and I was getting the message: ...
0
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0answers
66 views

MCF51JE SPI NOR Flash

I am working on an application that requires a NOR SPI flash unit from Micron(N25Q). What I am trying to figure out is how to address the device from a MCF51JE micro from Freescale. As I understand ...
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1answer
77 views

MAC Address and ColdFire MFC5329

I am working with the ColdFire MCF5329. I have worked on other projects where the Ethernet function was a separate chip, namely, SMC. The SMC Ethernet chip has pins out for a 64 byte EEProm to store ...
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2answers
189 views

Watchdog enables itself after reset

I am using TWR-S08DC-PT60 board which has a MC9S08PT60 microcontroller. I am trying to disable the watchdog timer in my application, just for ease of development. After configuring it in the ...
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2answers
282 views

Apply PWM signal to PIN of a Microcontroller

I am using the MC9S08DZ60. I have been give a circuit diagram according to which i must program the micro-controller. I am using Code warrior with Processor Expert which allows me to initialize the ...
2
votes
1answer
287 views

Timers and internal clock generator on Freescale MCU

I am using MC9S08AW60A with DEMO9S08AW60E Board (Freescale). I have studied about the timers given with the MCU. I wish to know how exactly to Implement timers by code. The Freescale suite also comes ...
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2answers
318 views

Switch on a LED: why doesn't this code work?

I am using DEMO9S08AW60E and using Codewarrior(Version: 5.9) with Processor Expert. ...
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1answer
155 views

Basic Question Regarding Programming in CodeWarrior [closed]

I have basic knowledge of C++ and MicroControllers. Please Consider the following code excerpt from the header file of MC9s08aw60(freescale), i am working with Codewarrior V5.9. ...
3
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2answers
524 views

PWM timer problem with HCS08 - freescale

I am using a MC9S08LH64 microcontroller's timer module to generate an internal timer for synchronization. bus clock is at 4.3 MHz, modulo is set at 4309 (TPM1MODH and TPM1MODL) and I am expecting ...
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2answers
315 views

BeeStack and the Freescale MC13224

I've been a long term desktop application developer and now I have the need to dive into embedded. What I am looking to do is implement a Zigbee mesh network where there is one co-ordinator ...
1
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1answer
154 views

Help finding a freescale MC68LK331CPV27 datasheet

I'm looking for an old cpu datasheet which seems to have disappeared from existence. It is for a freescale MC68LK331CPV27. I've ran out of stock on an old cpu and the replacement (MC68LK332ACAG16) ...
19
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2answers
1k views

Resistive touchscreen with 5-wire connection & Freescale IMX28

I have a IMX28EVK board and I would like to to connect this board to a 5-wire resistive touchscreen. In the Reference Manual of the I.MX28, Freescale said: LRADC2 - 6 can be used for 4/5-wire ...
1
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1answer
83 views

Freescale MCP8260, don't understand pins

I am looking at the Freescale MCP8260 processor. For programming PINS you set values to some registers.. I would like to use MII interface for Fast Ethernet for example... I can see the Dedicated ...
7
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1answer
449 views

On Freescale iMX31, how can I translate SDRAM address to CPU address?

[This is a re-post of http://stackoverflow.com/q/5346225/69172] I'm new to iMX31 and embedded systems, please help me to understand the translation from SDRAM address to ARM CPU address, especially ...
2
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2answers
92 views

Using Port DD as GPIO on MCF5282

I’ve got a MCF5282 that I’m trying to use PDD4 as a GPIO on. In my setup code, I’ve got: ...
5
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4answers
723 views

How to get into Freescale 32-bit MicroControllers?

Which websites/blogs/tools/books/manuals would you recommend for getting into the Freescale microcontrollers, especially the 32-bit models? What are the best development tools (IDEs, compilers) for ...
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10answers
22k views

Why is AVR used in Arduino?

Why is Arduino using AVR? I understand that they are the official processor but there isn't a reason the code couldn't be ported to an ARM or a Freescale architecture other than cost, right? As long ...