Link errors on port from DP256 to DJ128

Started by galenpatrickogrady in 68HC1212 years ago 3 replies

I'm using Codewarrior 2.0 and am doing my development with a DP256 part. The production version won't need all the bells and whistles of ...

I'm using Codewarrior 2.0 and am doing my development with a DP256 part. The production version won't need all the bells and whistles of the DP256 and so I'm trying to re-build for the DJ128. I've included the DJ128 rather than DP256 c and h files and reduced the available pages (in prm file) to match the DJ128. Problem is I'm getting link errors that I do


Axiom 12S-DP256

Started by karima samfoug in 68HC1214 years ago

I'm using the Axiom CML 12S-DP256 board with ICC12 C compiler. I can?t execute hello example. How to Make ICC12 Work for...

I'm using the Axiom CML 12S-DP256 board with ICC12 C compiler. I can?t execute hello example. How to Make ICC12 Work for DP256? Best Regards samfoug --------------------------------- Yahoo! Mail : vot


Memory retention on DP256

Started by fed in 68HC1213 years ago 1 reply

Hi, I am new to the DP256. I need to reserve a data structure during power failures. I have two questions: 1) Is the DP256...

Hi, I am new to the DP256. I need to reserve a data structure during power failures. I have two questions: 1) Is the DP256 internal static ram in a random state after power up 2) How or to what pin can I connect a 3.3V battery to reserve the state of the internal memory.


DP256 Bootloader

Started by Jeff McKnight in 68HC1213 years ago 2 replies

Hello, Could anyone tell me if they have successfully assembled the code in AN2153 for the DP256 serial bootloader ? If so,...

Hello, Could anyone tell me if they have successfully assembled the code in AN2153 for the DP256 serial bootloader ? If so, could you please tell me what assembler you used ? I have been trying for several days with three different assemblers and can not seem to m


DP256 : oscillateur

Started by Anonymous in 68HC1215 years ago 3 replies

Hi Guillermo Do you have a schematic of this? Do you use a 16MHz oscillator or quartz which type of system (P or C) is ...

Hi Guillermo Do you have a schematic of this? Do you use a 16MHz oscillator or quartz which type of system (P or C) is better? We cannot go higher than 36MHz with a first evaluation board DP256 from Motorola !!! Best regards Jean-Pierre


9S12DP256 Vs 9S12DP512

Started by Ravi Raj in 68HC1212 years ago 1 reply

Hi, I am using a 9S12DP256C for my application. As DP256 is going obsolete soon, we are thinking of going to DP512. But I am not sure that I...

Hi, I am using a 9S12DP256C for my application. As DP256 is going obsolete soon, we are thinking of going to DP512. But I am not sure that I can port the executable directly on 512 without rebuilding it. In other words can DP512 be a drop in replacement for DP256 hardware and software wise. Can anybody throw some light on this please? Thanks in advance Ravi This email may contain con...


Re: dp256

Started by Uwe Arends in 68HC1213 years ago 6 replies

Ritesh, > Can u tell me how can i write isr routine , I wrote it but as a > function and the keyword interrupt and it no. Another way i...

Ritesh, > Can u tell me how can i write isr routine , I wrote it but as a > function and the keyword interrupt and it no. Another way i tried out is to > write function and put the name in the vector table. > I am trying out CAN Communication using DP256 > Before the function definition i didnot use #pragma is that the > problem.


Stupid INITRM mapping (was

Started by Jefferson Smith in 68HC1213 years ago

Oh bother... I was really mad about not being able to get things straight with INITRM and the RAMHAL bit. I was not able to find...

Oh bother... I was really mad about not being able to get things straight with INITRM and the RAMHAL bit. I was not able to find even a mention of the DP256 only being mappable to 16k regions. Especially since the only documentation of INITRM was not specific to DP256. I final


DP256 CAN Transmission

Started by venki in 68HC1213 years ago 1 reply

Hi, Am a newbie to CAN. Am trying to implement a CAN driver on MC9S12DP256 micro eval board using metrowerks codewarrior. I have 2...

Hi, Am a newbie to CAN. Am trying to implement a CAN driver on MC9S12DP256 micro eval board using metrowerks codewarrior. I have 2 problems 1. There are 5 CAN channels in DP256. How to select the required channel ?.(We are using CANE bit and MODRR registers, still not transmitting) 2. We observed that the "sync" bit in CAN1CT


DP256 Error frames

Started by Venki in 68HC1213 years ago

Hi , I am trying to transmit the CAN messages b/w the DP256 controller CAN node to 1054 piggy CAN opto. Both the controllers are...

Hi , I am trying to transmit the CAN messages b/w the DP256 controller CAN node to 1054 piggy CAN opto. Both the controllers are having the fault tolerant transceivers only. But we observed that both the nodes are transmitting error frames. What could be the problem? Baud rate is 100 kbps to both the nodes. Please help us w


FBULK ;NP doesn't always work on DP256 - Help!

Started by Steve Gordon in 68HC1215 years ago 2 replies

Hello, So far, we HAVE been able to erase and program the DP256 using the D-Bug12 Version 4.x.x. A problem is happening...

Hello, So far, we HAVE been able to erase and program the DP256 using the D-Bug12 Version 4.x.x. A problem is happening when the chip is programmed incorrectly with a bad format S-19 file. We have been unable to FBULK the device to erase it. Is there a simp


Flash DP256, Debug 12

Started by Lewis, Bob in 68HC1215 years ago 1 reply

I have no experience with Debug 12 so I appologize if these are obvious questions; I have been using NOICE and starprog to...

I have no experience with Debug 12 so I appologize if these are obvious questions; I have been using NOICE and starprog to flash my dg128a and they work great, but these programs do not support the dp256 as yet (but will in the future). * Can I use debug 12 to flash th


DP256 EVB

Started by iewgnip in 68HC1214 years ago

Hi All, I hope you can help me with this problem. I have built my own EVB and I have one that I got from Motorola as well (EVB...

Hi All, I hope you can help me with this problem. I have built my own EVB and I have one that I got from Motorola as well (EVB DP256). The Motorola EVB was working fine all this while with an 8Mhz crystal. I used my own EVB to try to communicate with the Mot EVB using


DP256 BDM

Started by Toby Merridan in 68HC1215 years ago 1 reply

Hi Folks, I have an application using a DP256 where the program may need to be changed in the field. Does the Chip...

Hi Folks, I have an application using a DP256 where the program may need to be changed in the field. Does the Chip automatically detect when the BDM Port is connected to? Is this the correct way to initiate Program updated to a finished product using this chip?


A few problems: Flash Start up & IRQ

Started by chiefwigms in 68HC1214 years ago 5 replies

Hey guys - I'm having a couple problems with the 9S12DP256 and our robot. First: We have two DC motors wired to a SN754410...

Hey guys - I'm having a couple problems with the 9S12DP256 and our robot. First: We have two DC motors wired to a SN754410 h-bridge (VCC1 is off of the DP256, while VCC2 is off of an external battery pack), which is wired from PWM pins on the DP256. Additionally


Help with DP256 'C' Code

Started by Toby Merridan in 68HC1215 years ago 9 replies

I am a hardware engineer who has managed to cobble together some test code for this HCS12 project (dp256) basically I have set up a...

I am a hardware engineer who has managed to cobble together some test code for this HCS12 project (dp256) basically I have set up a RS232 link back to windows terminal. I am testing some inputs (SPI bus) and Digital Outputs, printing some blurb onto the screen when each channel is switched


MC33390 - DP256 BDLC problem

Started by Rob Milne in 68HC1212 years ago

Is anyone familiar with the MC33390 J1850 transceiver and DP256 BDLC combo? I'm using a standard J1850 simulator/monitor to test my system ...

Is anyone familiar with the MC33390 J1850 transceiver and DP256 BDLC combo? I'm using a standard J1850 simulator/monitor to test my system and can successfully send/receive frames so I assume my BDLC driver is constructed properly (based on HC08 code in Moto doc AN1731). What has me baffled are the hw hacks I've had to use to make things work. My hw de


Problem using function pointers in HC12 (DP256)...

Started by mdn4u in 68HC1214 years ago 2 replies

Hi All, We are using DP256(HC12) target environment for our project and facing problems when we try to use function pointers....

Hi All, We are using DP256(HC12) target environment for our project and facing problems when we try to use function pointers. We are using an array of function pointers for implementing callback functions. The problem is, when we try to call the function using the ar


How to increase drive capabitity of DP256 IO ports

Started by linktek in 68HC1214 years ago 2 replies

Hi, I need to increase the drive capacity from the meager 2.5mA per IO pin to about 20mA per IO pin for 8 IO lines. Now the ...

Hi, I need to increase the drive capacity from the meager 2.5mA per IO pin to about 20mA per IO pin for 8 IO lines. Now the trick is to retain the bi-direction function of the IO pins. How can I increase the the output drive of the DP256 IO pins without loosing input cap


Problem in loading file into flash of DP256....

Started by Yogeesh in 68HC1214 years ago 1 reply

Hi, We have problems loading our .h12 file into DP256 in Evaluation Board M68KIT9S12DP256. This is in our '.lkf' file.. ...

Hi, We have problems loading our .h12 file into DP256 in Evaluation Board M68KIT9S12DP256. This is in our '.lkf' file.. ----- +seg .data -b0x800 -m0x1b57 -n.data # data start address +seg .eeprom -b0x400 # eeprom start address if needed +def __sbss=@.bss # s