How can I program the SPI Pinout of MC9S12DP256B

Started by caoshyh in 68HC1213 years ago

From the page 54 of MC9S12DP256B Device User Guide we can see that every SPI module of MC9S12DP256B have two sets of pins. But...

From the page 54 of MC9S12DP256B Device User Guide we can see that every SPI module of MC9S12DP256B have two sets of pins. But which set is the default one out of reset, and how can we reroute it. With the document published on the Freescale Web I can't determine how to do.


MC9S12DP256B Timer

Started by gregmaaha in 68HC1211 years ago 1 reply

Using an MC9S12DP256B microcontroller, I am attempting to implement a time delay, during which other processes will still be carried out. I...

Using an MC9S12DP256B microcontroller, I am attempting to implement a time delay, during which other processes will still be carried out. I have a couple of questions regarding this topic: 1) Since TCNT only counts to a certaing value, I was wondering if: When TCNT reaches its maximum value, is there another register that is incremented to show that this is the case? 2) Does anyone ...


Extern RAM with MC9S12DP256B

Started by ventre ludovic in 68HC1212 years ago 17 replies

hello, I am working with MC9S12DP256B and i would like to communicate with Extern RAM. If somebody know how is it possible...

hello, I am working with MC9S12DP256B and i would like to communicate with Extern RAM. If somebody know how is it possible Please? Tell me Sincerly Ludo PS: I'm sorry for my english D?couvrez le nouveau Yahoo


SPI on MC9S12DP256B

Started by Andrew Lohmann in 68HC1212 years ago 4 replies

Hi, I have been using the spi port on MC9S12E128 successfully for some time. I am now working on another target which uses...

Hi, I have been using the spi port on MC9S12E128 successfully for some time. I am now working on another target which uses MC9S12DP256B instead. Unfortunately the spi does not work on this other target, which I have two of. I have worked through the erratas for silic


output to buzzer from MC9S12DP256B

Started by Shah in 68HC1211 years ago

Hello everyone, I am using MC9S12DP256B minidragon evaluation board with an SRF04 transducer. I have written my program in C and have...

Hello everyone, I am using MC9S12DP256B minidragon evaluation board with an SRF04 transducer. I have written my program in C and have successfully downloaded the program on to the chip. Unfortunately I haven't been able to get a response from my buzzer. I have attached my circuit diagram and am pasting my code here. Somebody please advise. I really need help to make this work. I have also tri...


Serial Bootloader for HCS12xDP512

Started by jsbouchard1978 in 68HC1212 years ago 5 replies

Is there something available to replace the serial bootloader that was available with MC9S12DP256B? If not, has anyone attempted to...

Is there something available to replace the serial bootloader that was available with MC9S12DP256B? If not, has anyone attempted to modify this serial bootloader created for the MC9S12DP256B to adapt it to the MC9S12XDP512? I know that the original code won't work because of the RAM mapping that is not available on the XGATE series, but there mi


Cant program MC9S12DP256B

Started by Andrew Lohmann in 68HC1212 years ago 4 replies

Hi, I am having difficulty programming a new target board using MC9S12DP256B processor. This is the first time I have used...

Hi, I am having difficulty programming a new target board using MC9S12DP256B processor. This is the first time I have used this particular processor, but for using it on an axiom EVB, which programmes fine. I have been using MC9S12E128CPV in an number of target board


MC9S12DP256B and uCOS-II ROTS

Started by Salvador in 68HC1214 years ago 5 replies

Hi, Has anyone been able to port the uCOS-II ROTS to the MC9S12DP256B? I don't have much experience with either product and...

Hi, Has anyone been able to port the uCOS-II ROTS to the MC9S12DP256B? I don't have much experience with either product and I am having problems understading where and how to initialize the interrupt vetor table. Any help or hints would be greatly apprec


MC9S12DP256B - Serial Bootloader - AN2153

Started by Kai Schneider in 68HC1213 years ago 1 reply

Hello, I am searching for a serial Bootloader for the MC9S12DP256B. On the Freescale website I found the AN2153. (Serial...

Hello, I am searching for a serial Bootloader for the MC9S12DP256B. On the Freescale website I found the AN2153. (Serial Bootloader for Reprogramming?) Has somebody of you implemented this Bootloader with the Code Warrior? Does it work? Does somebody know an <


Bootloader MC9S12DP256B

Started by jcz in 68HC1212 years ago 3 replies

I have a basic question : how can I upload/run bootloader on motorola MC9S12DP256B (I am using CodeWarrior 5.5, BDM-MULTILINK) I found...

I have a basic question : how can I upload/run bootloader on motorola MC9S12DP256B (I am using CodeWarrior 5.5, BDM-MULTILINK) I found some s-rec files (AN2546SW.zip) on freescale.com with doc's: "HCS12 Load RAM and Execute Bootloader User Guide". When I try uploading these s-rec (for 256) either I have memory errors or it just doesn't wor


MC9S12DP256B with controleur LCD Epson S1D13705

Started by ludo...@... in 68HC1212 years ago 7 replies

hello, i am working with the MC9S12DP256B and i would like to know if it\'s possible to connect it with tle LCD controler S1D13705. I...

hello, i am working with the MC9S12DP256B and i would like to know if it\'s possible to connect it with tle LCD controler S1D13705. I wonder it becaus the LCD Controler generate a wait signal . because of this signal I cannot read or write the internal contents of register to the S1D13705. Thanks ludo


MC9S12A256B vs MC9S12DP256B (and CodeWarrior)

Started by varneybob in 68HC1214 years ago 11 replies

I'm using CodeWarrior for HC(S)12. We've been using an eval board with the MC9S12DP256B MCU, but are actual MCU is the MC9S12A256B....

I'm using CodeWarrior for HC(S)12. We've been using an eval board with the MC9S12DP256B MCU, but are actual MCU is the MC9S12A256B. I cannot get CodeWarrior to talk to the MCU via the P&E BDM Multilink cable. Also CodeWarrior, does not list the MC9S12A256B in a MCU-ID drop-do


how to download load program on to minidragon MC9S12DP256B board

Started by Shah O Dayan in 68HC1211 years ago 3 replies

Dear friends, I am new with the minidragon MC9S12DP256B chip. I have my program but I do not know how to configure the chip with my computer....

Dear friends, I am new with the minidragon MC9S12DP256B chip. I have my program but I do not know how to configure the chip with my computer. I need to know how to download the program that I have written on to my chip using a serial cable. Somebody please help. Thanks. SD


need instructions on how to dowload C program to test on Minidragon MC9S12DP256B

Started by Shah O Dayan in 68HC1211 years ago 1 reply

Dear friends, I am in dire need of some help - this might be very simple for most of you. But I am a newbie and need help. I have written my...

Dear friends, I am in dire need of some help - this might be very simple for most of you. But I am a newbie and need help. I have written my program in C. I am trying to download the C program written with Codewarrior Metrowerks Developer Studio. I am trying to download and test my program on to a MC9S12DP256B minidragon HCS12 chip. The software I have (which I don't know how to use) is ...


Why I can't use the PLL in MC9S12DP256B in Normal Single-Chip Mode

Started by in 68HC1213 years ago 1 reply

68HC12????ã? I have programmed a simlpe demonstration program to see the MC9S12DP256B to run in Normal Single-Chip Mode.The...

68HC12????ã? I have programmed a simlpe demonstration program to see the MC9S12DP256B to run in Normal Single-Chip Mode.The program is to generates 60 1-second,active-low pulses on PB0. At first I use the default settings out of reset,while I use a 16MHz puartz,the default bus clock i


Key Wakeups

Started by Sophi Kravitz in 68HC1211 years ago 7 replies

Hi- I'm using a MC9S12DP256B. Does anyone have any sample Key Wakeup code? I have been unsuccessful in getting it to work. Thanks! Sophi

Hi- I'm using a MC9S12DP256B. Does anyone have any sample Key Wakeup code? I have been unsuccessful in getting it to work. Thanks! Sophi


How many writes for HCS12 (PN:MC9S12DP256B) microprocessor EEPROM?

Started by mikehockstein in 68HC129 years ago 2 replies

Hello everyone, I've been trying to find what the limited number of write cycles is for this EEPROM, but I can't seem to find it. If you...

Hello everyone, I've been trying to find what the limited number of write cycles is for this EEPROM, but I can't seem to find it. If you could help me out, it would be greatly appreciated. Let me know where you found your information too please.


Help with M68EVB912DP256

Started by Ashwin in 68HC1211 years ago 6 replies

Hello, I am a newbie and am not too well versed with microcontrollers. So I will appreciate any help. I am using a M68EVB912DP256...

Hello, I am a newbie and am not too well versed with microcontrollers. So I will appreciate any help. I am using a M68EVB912DP256 development board (it has the MC9S12DP256B chip). I want to install a CAN interface so that it can communicate with another microcontroller (XC3S-1500). I was able to write a simple CAN transmit code and I think it works fine. NOw, I want to test the CAN re


No data is being transmitted

Started by rithes ameen in 68HC1212 years ago 3 replies

Hello everybody, I need a help regarding transmission of data using CAN Protocol in MC9S12DP256B. It is not able from to send data ,i have...

Hello everybody, I need a help regarding transmission of data using CAN Protocol in MC9S12DP256B. It is not able from to send data ,i have enabled the CANE bit in the CAN0CTRL1 only once . Entered intialisation modes i am setting all the bus configuration where i am seeting it to 10KPBS. I am putting my program code in this mail. Please help me with this .


HC12 banked memory

Started by hemanth in 68HC1213 years ago 1 reply

Hi all, I am using MC9S12DP256B controller. My code is exceeding in size and thus I would like to use other banks i.e I would like...

Hi all, I am using MC9S12DP256B controller. My code is exceeding in size and thus I would like to use other banks i.e I would like to use banked memory model. Can anybody suggest how to do this? Please let me know the documents which may help for this. bujji. ---------