topic MK60DN512VMD10 flexbus problem in Kinetis Microcontrollers

MK60DN512VMD10 flexbus problem

ilkea — Fri, 17 Jan 2014 08:36:40 GMT

I am trying to migrate LCD code from MCF52259 to Kinetis platform.I used Kinetis sample flexbus code for K60 but it did not work.

We are using UC1611s LCD driver, 8 data pins, fb_ad16 for command/data,output enable, rw and chip select(cs0) as I guess.

I attached Flexbus init routine for MCF52259 in MCF52259flexbusinit.txt, for k60 in k60flexbusinit.txt.

I defined MRAM_START_ADDRESS according to k60 reference manual as below:

#define MRAM_START_ADDRESS (*(volatile unsigned char*)(0x60000000))

In MCF52259, DMA initialization is done as follows:
void initDMA()
{

MCF_SCM_RAMBAR |= MCF_SCM_RAMBAR_BDE;
MCF_SRAM_RAMBAR |= (0x0001 << 9);

    MCF_DMA0_DCR = MCF_DMA_DCR_SINC | MCF_DMA_DCR_SSIZE(MCF_DMA_DCR_SSIZE_BYTE) | MCF_DMA_DCR_DSIZE(MCF_DMA_DCR_DSIZE_BYTE);

    MCF_DMA0_SAR = (uint32)&displayBuffer;
    MCF_DMA0_DAR = 0x80010000;

    MCF_DMA0_BCR = MCF_DMA_BCR_BCR(240);
    sPutUART((uint8*)"ECHO DMA ok \r\n");

}

I could not find how to enable backdoor (BDE) in k60, it allows DMA to reach SRAM and I don't know if it can be related to flexbus problem.I tried to write and read data via flexbus but I read same values from adress that means I can not write anything?!

Original Attachment has been moved to: MCF52259flexbusinit.txt.zip

Original Attachment has been moved to: k60flexbusinit.txt.zip

Re: MK60DN512VMD10 flexbus problem

soledad — Mon, 20 Jan 2014 00:31:29 GMT

Hi ilke:

Please check the below application notes, these may help you.

http://cache.freescale.com/files/microcontrollers/doc/app_note/AN4393.pdf

http://cache.freescale.com/files/32bit/doc/app_note/AN4452.pdf

Regards

Sol

Re: MK60DN512VMD10 flexbus problem

ilkea — Mon, 20 Jan 2014 07:06:09 GMT

Hi Sol,

Thanks for your feedback, I checked and applied different variations of

2014/1/20 soledad <admin@community.freescale.com>

<https://community.freescale.com/> MK60DN512VMD10 flexbus problem
reply from soledad<https://community.freescale.com/people/soledad?et=watches.email.thread>in *
Kinetis Microcontrollers* - View the full discussion<https://community.freescale.com/message/374430?et=watches.email.thread#374430>

Re: MK60DN512VMD10 flexbus problem

ilkea — Mon, 20 Jan 2014 11:05:34 GMT

Can I make flexbus work without TWR-MEM?, I tried to define several

MRAM_START_ADRESS values such as 0x60000000, 0x80000000,e.t.c but nothing

changed.

2014/1/20 İlke Akgöl <iakgol@entes.com.tr>

Hi Sol,
Thanks for your feedback, I checked and applied different variations of
register settings but it did not work,

2014/1/20 soledad <admin@community.freescale.com>

>> <https://community.freescale.com/> MK60DN512VMD10 flexbus problem

>> reply from soledad<https://community.freescale.com/people/soledad?et=watches.email.thread>in *

>> Kinetis Microcontrollers* - View the full discussion<https://community.freescale.com/message/374430?et=watches.email.thread#374430>