ATSAM E54, FreeRTOS and 2 display configurations

[h3ind]

For anyone who may find this useful.
I applied this project to the ATSAM E54 processor running FreeRTOS.
I successfully added 2 displays produced by jwslcd.com to the configuration. See below.

Gregg

/* JWS070EWVCTE057-18L 800x480 7.0" Driver: EK9713 jwslcd.com, BT815 */
#if defined (EVE_JWS070)
#define EVE_HSIZE	(800L)	/* Thd Length of visible part of line (in PCLKs) - display width */
#define EVE_VSIZE	(480L)	/* Tvd Number of visible lines (in lines) - display height */

#define EVE_HSYNC0	(0L)	/* Thf Horizontal Front Porch */
#define EVE_HSYNC1	(20L)	/* Thf + Thp Horizontal Front Porch plus Hsync Pulse width */
#define EVE_HOFFSET (45L)	/* Thf[16-354] + Thp[1-40] + Thb[46] = <256 Length of non-visible part of line (in PCLK cycles) */
#define EVE_HCYCLE 	(1056L)	/* Th Total length of line (visible and non-visible) (in PCLKs) */

#define EVE_VSYNC0	(0L)	/* Tvf Vertical Front Porch */
#define EVE_VSYNC1	(10L)	/* Tvf + Tvp Vertical Front Porch plus Vsync Pulse width */
#define EVE_VOFFSET	(24L) 	/* Tvf[7-147] + Tvp[1-20] + Tvb[23] = <45 Number of non-visible lines (in lines) */
#define EVE_VCYCLE	(527L)	/* Tv Total number of lines (visible and non-visible) (in lines) */

#define EVE_PCLKPOL (1L)	/* PCLK polarity (0 = rising edge, 1 = falling edge) */
#define EVE_SWIZZLE (3L)	/* Defines the arrangement of the RGB pins of the BT800, RB Swipped & bit order reversed on RGB */
#define EVE_PCLK	(2L)	/* 60MHz / REG_PCLK = PCLK frequency 30 MHz */
#define EVE_CSPREAD	(1L)	/* helps with noise, when set to 1 fewer signals are changed simultaneously, reset-default: 1 */
// #define EVE_TOUCH_RZTHRESH (3600L)	/* touch-sensitivity */
#define EVE_HAS_CRYSTAL
#define EVE_HAS_GT911
#define FT81X_ENABLE
#define BT81X_ENABLE
#endif


/* JWS070P3ARB27.V9 1024x600 7.0" Driver: EK9713 jwslcd.com, BT817
 * DCLK		51MHz
 * 
 * th		1344			Horz Period
 * thpw		1-140			Horz Pulse Width
 * thbp		160				Horz Back Porch
 * thfp		160 (16-216)	Horz Front Porch	EVE_HSYNC0
 * 
 * tv		635				Vert Period
 * tvpw		1-20			Vert Pulse Width
 * tvbp		23				Vert Back Porch
 * tvfp		12 (1-127)		Vert Front Porch
 */

#if defined(EVE_EVE4_JWS070P3)
#define EVE_HSIZE	(1024L)	/* Thd Length of visible part of line (in PCLKs) - display width */
#define EVE_VSIZE	(600L)	/* Tvd Number of visible lines (in lines) - display height */

#define EVE_HSYNC0	(0L)	/* Thf Horizontal Front Porch */
#define EVE_HSYNC1	(70L)	/* Thf + Thp Horizontal Front Porch plus Hsync Pulse width */
#define EVE_HOFFSET (160L) 	/* Thf[16-216] + Thp[1-140] + Thb[160] = <256 Length of non-visible part of line (in PCLK cycles) */
#define EVE_HCYCLE 	(1344L)	/* Th Total length of line (visible and non-visible) (in PCLKs) */

#define EVE_VSYNC0	(0L)	/* Tvf Vertical Front Porch */
#define EVE_VSYNC1	(10L)	/* Tvf + Tvp Vertical Front Porch plus Vsync Pulse width */
#define EVE_VOFFSET	(23L) 	/* Tvf[1-127] + Tvp[1-20] + Tvb[23] = <45 Number of non-visible lines (in lines) */
#define EVE_VCYCLE	(635L)	/* Tv Total number of lines (visible and non-visible) (in lines) */

#define EVE_PCLK (1L)             /* 1 = use second PLL for pixel-clock in BT817 / BT818 */
#define EVE_PCLK_FREQ (51000000UL) /* EVE_PCLK needs to be set to 1 for this to take effect */
#define EVE_PCLKPOL (1L)
#define EVE_SWIZZLE (3L)	/* Defines the arrangement of the RGB pins of the BT800, RB Swipped & bit order reversed on RGB */
#define EVE_CSPREAD	(0L)	/* helps with noise, when set to 1 fewer signals are changed simultaneously, reset-default: 1 */

// #define EVE_TOUCH_RZTHRESH (3600L)	/* resistive touch-sensitivity */
#define EVE_HAS_CRYSTAL
#define EVE_HAS_GT911
#define EVE_GEN 4
#endif

[RudolphRiedel]

Interesting, had no idea these existed.
Are there product pages for these online? Can't find anything on https://www.jwslcd.com/
According to the website, these products do not exist?

If these do actually exist as a product, could I buy these from a distributor?

[h3ind]

They have a large selection of products that are not on their web site. Send them a message and ask for a current product list. I have attached one that I received some time ago. Their pricing is good and they will sell small qty direct. I think their main customers are in China so they do not have distribution. I have purchase as little as 10 displays. The 1024x600 cost about 14USD. From what I can tell, they are a manufacture of their own products but they get there cap touch panels from rxtplcd.com which I have also ordered direct.

JWS-LCM Product List-2022 - New.pdf
JWS070P3ARB27.V9 RGB 5.7 900.pdf

[RudolphRiedel]

Thank you, but I do not see any hint that they have BT815 or BT817 modules.

[h3ind]

The just sell displays. I designed my own boards with BT817. See attached image.

[RudolphRiedel]

Nice!
Everything I am building is in single digits, most of the time closer to 1 than to 9.
So it was never a good option for me to design my own board.

I am not adding these configs to EVE_config.h then.
However, you could use the EVE_CUSTOM_MODULE_H macro in EVE_config.h to add these without changing EVE_config.h.