Hi.

filename:WS2822_0.3

I wrote code for WS2822.
This has only basic function.
There is no demo code.


1)Set buffer size
Set buffer size(3072byte) by nanual because cannot set by code-execution.
a. Execute 'reboot'
b. variable WS2822 here W@ d3068 + here W!

2)Setting address
Addr_struct 1 addr LEDs setAddr
This word set address to LED(2pcs).
When setting is successfull, LED's RGB-LED is on.
To escape addres-setting mode, power slowly must be off and on.
LED(L)on board firstly is set to cannel-4.
LED(R)on board secondly is set to cannel-7.

Signal   1bit=4usec
MTBP:88usec
BREAK:5msec
MAB:88usec
SC:0[8bit]
channel number:4[8bit]  (When address is 1, channel is 4)
channel data 2nd:hFO[8bit]  (channel= 1 to 255)
channel daa 3rd:hD2[8bit]
channel number:7[8bit]  
channel data 2nd:hFO[8bit]  (channel= 1 to 255)
channel daa 3rd:hD2[8bit]
Sending 8bit: startbit[1bit]+data[8bit]+stopbit[2bit]

Address is written to eeprom inside WS2822.
I have no idea about max re-writing turn.


3)Running
c" WS2822 buf_size data a_sendData" 0 cogx  
Sending 8bit data to address[0 - 1023],channel[1 - 3072].

Signal   1bit=4usec
MTBP:88usec
BREAK:88use
MAB:8usec
SC:startbit[1bit] 0[8bit] stopbit[2bit]
data[8bit] from buffer
next data[8bit] from buffer[Blue]
next data[8bit] from buffer[Green]
next data[8bit] from buffer[red]
next data[8bit] from buffer[Blue]
next data[8bit] from buffer[Green]
next data[8bit] from buffer[red]
..
last data[8bit] from buffer
Return MTBT

Sending 8bit: startbit[1bit]+data[8bit]+stopbit[2bit]

Total 1scan-time takes 135.352msec.

3) Test
channel       	address		channel 2nd data  channel 3rd data	Word that set address to WS2822 2pcs
1 - 255		0 - 84		hF0			hD2		Addr_struct 0 addr LEDs setAddr
256 - 513    	85 - 170	hE1			hD2		Addr_struct d85 addr LEDs setAddr
514 - 768	171 - 255	hD2			hD2		Addr_struct d171 addr LEDs setAddr
769 - 1023	256 - 340	hC3			hD2		Addr_struct d256 addr LEDs setAddr
1024 - 1281	341 - 426	hB4			hD2		Addr_struct d341 addr LEDs setAddr
1282 - 1536 	427 - 511	hA5			hD2		Addr_struct d427 addr LEDs setAddr
1537 - 1791	512 - 596	h96			hD2		Addr_struct d512 addr LEDs setAddr
1792 - 2049	597 - 682	h87			hD2		Addr_struct d597 addr LEDs setAddr
2050 - 2304	683 - 767	h78			hD2		Addr_struct d683 addr LEDs setAddr
2305 - 2559	768 - 852	h69			hD2		Addr_struct d768 addr LEDs setAddr
2560 - 2817	853 - 938	h5A			hD2		Addr_struct d853 addr LEDs setAddr
2818 - 3072	939 - 1023	h4B			hD2		Addr_struct d939 addr LEDs setAddr

Test 12turn because of only 2pcs WS2822.
a) Set address		Exsample; Addr_struct 0 addr LEDs setAddr
b) Execute c" WS2822 buf_size data a_sendData" 0 cogx
c) 0 addr_LED_on  LED(L) is on. 1st:Blue 2nd:green 3rd:red
   1 addr_LED_on  LED(R) is on. 1st:Blue 2nd:green 3rd:red
d) Execute 0 cogreset
e) Next address 
   return to a)