MODBUS Slave Protocol - Revision history

Usr255: /* self_test (0x0088) */

2025-08-07T11:49:35Z

self_test (0x0088)

@@ Line 2,798: / Line 2,798: @@
 |TX
 |01 06 F4 0E A5 A5 61 12
-|put specific 0xA5A5 for enable touch panel calibration
+|put specific 0xA5A5 for enable touch panel calibration (calibration will be carry after the touch_calib command)
 |-
 |2
@@ Line 2,830: / Line 2,828: @@
 |n:0xF40C
 |0x5555
-|put specific 0x5555 for the enable self test
+|put specific 0x5555 for the enable self test (self check will be carry after the self_check command)
 |-
 |2
@@ Line 2,843: / Line 2,839: @@
 Example Frame (device id = 01)

2025-08-07T11:42:58Z

PIP Status SFR (n:0xF425)

← Older revision		Revision as of 19:42, 7 August 2025
Line 1,997:		Line 1,997:
	\|RX		\|RX
	\|01 03 02 00 00 B8 44		\|01 03 02 00 00 B8 44
	\|Report to host that the PinYin ~~Key Board~~ =0 (0:CN input mode; 1:EN input mode)		\|Report to host that the PinYin Keyboard =0 (0:CN input mode; 1:EN input mode)
	\|}		\|}

2025-08-07T11:39:06Z

self_check (0x0088)

← Older revision		Revision as of 19:39, 7 August 2025
Line 2,817:		Line 2,817:
	\|		\|
	\|}		\|}
	==== ~~self_check~~ (0x0088) ====		==== self_test (0x0088) ====
	This command allows the host to initiate the self-test mode of the SMART LCD.		This command allows the host to initiate the self-test mode of the SMART LCD.
	{\| class="wikitable"		{\| class="wikitable"

2025-08-07T11:38:00Z

Command List

← Older revision		Revision as of 19:38, 7 August 2025
Line 2,133:		Line 2,133:
	\|-		\|-
	\|0x00E0		\|0x00E0
	\|~~set_baudrate~~		\|baudrate_set
	\|Set RS485 Baud Rate		\|Set RS485 Baud Rate
	\|-		\|-
	\|0x00E1		\|0x00E1
	\|~~sel_project~~		\|project_sel
	\|Set active project folder		\|Set active project folder
	\|-		\|-
Line 2,147:		Line 2,147:
	\|u_drv_unlock		\|u_drv_unlock
	\|Unlock File System for USB Access with pre-stored password		\|Unlock File System for USB Access with pre-stored password
			\|-
			\|0x00E4
			\|touch_calib
			\|Start touch panel calibration (RTP only)
	\|-		\|-
	\|0x0088		\|0x0088
Line 2,760:		Line 2,764:

	==== touch_calib (0x00E4) ====		==== touch_calib (0x00E4) ====
	This command allows the host to enable touch panel calibration of the SMART LCD (RTP only .		This command allows the host to enable touch panel calibration of the SMART LCD (RTP only).
	{\| class="wikitable"		{\| class="wikitable"
	\|'''Seq'''		\|'''Seq'''

2025-08-07T11:20:44Z

Country Code SFR (n:0xF423)

← Older revision		Revision as of 19:20, 7 August 2025
Line 1,942:		Line 1,942:
	\|1		\|1
	\|TX		\|TX
	\|01 03 F4 22 00 01 47 F0		\|01 03 F4 23 00 01 47 F0
	\|Read Country Code SFR		\|Read Country Code SFR
	\|-		\|-
Line 1,975:		Line 1,975:
	\|TX		\|TX
	\|01 06 F4 24 00 00 FB F1		\|01 06 F4 24 00 00 FB F1
	\|set the PinYin Keyboard as ~~Chines~~ input method		\|set the PinYin Keyboard as Chinese input method
	\|-		\|-
	\|2		\|2
Line 1,997:		Line 1,997:
	\|RX		\|RX
	\|01 03 02 00 00 B8 44		\|01 03 02 00 00 B8 44
	\|Report to host that the PinYin Key Board =1 ~~(using Chinese~~ input ~~method~~)		\|Report to host that the PinYin Key Board =0 (0:CN input mode; 1:EN input mode)
	\|}		\|}

2025-08-07T11:11:34Z

Display Page ID SFR (n:0xF400)

← Older revision		Revision as of 19:11, 7 August 2025
Line 1,411:		Line 1,411:
	\|		\|
	* Read Only SFR		* Read Only SFR
	* Can be assign value by using ~~display_page~~ (0x0070) command		* Can be assign value by using disp_page (0x0070) command
	\|}		\|}
	Example Frame (device id = 01, read form SFR)		Example Frame (device id = 01, read form SFR)

2025-08-07T11:09:23Z

MODBUS Function Codes Details

← Older revision		Revision as of 19:09, 7 August 2025
Line 133:		Line 133:
	This function code read up to 250 Bytes from the SMART LCD.		This function code read up to 250 Bytes from the SMART LCD.

	<u>Host ~~sto~~ Smart LCD MODBUS Frame</u>		<u>Host send to Smart LCD MODBUS Frame</u>

	{\| class="wikitable"		{\| class="wikitable"

2025-08-05T10:20:31Z

Function Code 0x06 - “Write Single Holding Register”

2025-08-05T09:27:52Z

Screen Saver Time1 SFR (n:0xF420)

2025-08-05T09:16:03Z

Timers Control SFR (n:0xF410 ... n:0xF417)

@@ Line 1,734: / Line 1,734: @@
 |01 03 04 00 63 00 00 0A 2D
 |Report the Timer register value back to the host
 |}