topic Re: LCD via flexbus in bareboard project in Kinetis Microcontrollers

LCD via flexbus in bareboard project

ankurchauhan — Wed, 23 Sep 2015 07:28:02 GMT

I'm using twr-k70f120m kit with twr-lcd module and trying to configure the lcd via flexbus(16 bit).

I'm not using the LCD controller bcoz the LCD module which i had don't support the lcd controller.

my project is a bareboard project without processor expert.

In flexbus ,i am using chip select 0(CS0) with the base address 0x60000000 and data address 0x60010000.

	SIM_SCGC5 = SIM_SCGC5_PORTA_MASK \| SIM_SCGC5_PORTB_MASK \| SIM_SCGC5_PORTC_MASK \| SIM_SCGC5_PORTD_MASK \| SIM_SCGC5_PORTE_MASK;
	SIM_SCGC7 \|= SIM_SCGC7_FLEXBUS_MASK;
	SIM_SOPT2 \|= SIM_SOPT2_FBSL(3);
	SIM_CLKDIV1 \|= SIM_CLKDIV1_OUTDIV3(3);

	FB_CSAR0 = FLEX_DC_ADDRESS;
	FB_CSMR0 = FLEX_ADRESS_MASK \| FLEX_CSMR_V_MASK;
	FB_CSCR0 = FLEX_CSCR_MUX_MASK \| FLEX_CSCR_AA_MASK \| FLEX_CSCR_PS1_MASK;
	FB_CSPMCR = 0x02200000;

and lcd initialization is according to the example given by freescale.

but still its not working ,not bale to display anything on screen

if anyone have some sample code of flexbus to use lcd for bareboard project plz send.

Regards

Ankur

Re: LCD via flexbus in bareboard project

Carlos_Musich — Wed, 23 Sep 2015 23:36:29 GMT

Hi Ankur,

I think this question is duplicated twr-lcd start address

You may keep commenting on the other thread if you still have questions.

Regards,

Carlos

Re: LCD via flexbus in bareboard project

ankurchauhan — Wed, 30 Sep 2015 12:25:32 GMT

Hi Carlos:

sorry for starting a new thread.

Is eGui needed for twr-lcd configuration if i'm not using LCDC controller ??

what this eGui exactly??

Regards and Thanks

ANKUR

Re: LCD via flexbus in bareboard project

Carlos_Musich — Thu, 01 Oct 2015 21:12:04 GMT

Hi Ankur,

I am sorry, I have no experience on eGUI. Probably EarlOrlando can comment on this.

Regards,

Carlos

Re: LCD via flexbus in bareboard project

EarlOrlando — Wed, 28 Oct 2015 18:16:38 GMT

Hello Ankur,

The eGUI is a free lightweight graphic driver for Kinetis, Coldfire, HCS08 and HCS12 MCUs. It includes since the low level drivers support to an API to build your graphic objects. It runs either in baremetal or in a RTOS.

I recommend you to take a look into the introductory document that can be downloaded in the eGUI site www.freescale.com/egui.

Please let me know if this information is useful for you.

Best regards,

Earl.

	SIM_SCGC5 = SIM_SCGC5_PORTA_MASK \| SIM_SCGC5_PORTB_MASK \| SIM_SCGC5_PORTC_MASK \| SIM_SCGC5_PORTD_MASK \| SIM_SCGC5_PORTE_MASK;
	SIM_SCGC7 \|= SIM_SCGC7_FLEXBUS_MASK;
	SIM_SOPT2 \|= SIM_SOPT2_FBSL(3);
	SIM_CLKDIV1 \|= SIM_CLKDIV1_OUTDIV3(3);