Raspberry Pi Interface to Cosmac Elf

wiringPi

Pi Pin#	Pi Function	Elf Pin	Elf Function
1	3.3 V	18	VIN
2	5 V	(18)	(VIN)
3	BCM 2, SDA
4	5 V
5	BCM 3, SCL
6	GND	19	GND
7	BCM 4	1	IN-
8	BCM 14, TXD	20	UART Rx
9	GND	21	GND
10	BCM 15, RXD	15	UART Tx (*)
11	BCM 17	14	WAIT-
12	BCM 18	16	CLR-
13	BCM 27	17	WE-
14	GND
15	BCM 22	2	IN0
16	BCM 23	3	IN1
17	3.3 V
18	BCM 24	4	IN2
19	BCM 10, MOSI	5	IN3
20	GND
21	BCM 9, MISO	6	IN4
22	BCM 25	7	IN5
23	BCM 11,SCLK	8	IN6
24	BCM 8, CE0	9	IN7
25	GND
26	BCM 7, CE1	25	O0 (*)
27	BCM 0
28	BCM 1
29	BCM 5	24	O1 (*)
30	GND
31	BCM 6	23	O2 (*)
32	BCM 12	22	O3 (*)
33	BCM 13	13	O4 (*)
34	GND
35	BCM 18	12	O5 (*)
36	BCM 16	11	O6 (*)
37	BCM 26	10	O7 (*)
38	BCM 20
39	GND
40	BCM 21

Topic attachments
I	Attachment	History	Action	Size	Date	Who	Comment
png	gpio-numbers-pi2.png	r1	manage	53.2 K	2017-11-26 - 18:46	PeterSchmid

Topic revision: r3 - 2017-11-28 - PeterSchmid