iCE40HX1K-EVB

https://www.olimex.com/Products/FPGA/iCE40/iCE40HX1K-EVB/open-source-hardware

Pins on GPIO1 to VQ100 package pin numbers as used in .pcf files

GPIO1	VQ100
1	+5V
2	GND
3	+3.3V
4	GND
5	1
6	EXTCLK: 15
7	2
8	GND
9	3
10	LED1: 40
11	4
12	LED2: 51
13	7
14	37
15	8
16	36
17	9
18	34
19	10
20	33
21	12
22	30
23	13
24	29
25	16
26	28
27	18
28	27
29	19
30	26
31	20
32	25
33	21
34	25

.pcf file template

#set_io  a       1  # GPIO1.5, next to 100 MHz CLK, potential crosstalk with long cable
#set_io  a       2  # GPIO1.7, near 100 MHz CLK
#set_io  a       3  # GPIO1.9
#set_io  a       4  # GPIO1.11
#set_io  a       7  # GPIO1.13
#set_io  a       8  # GPIO1.15
#set_io  a       9  # GPIO1.17
#set_io  a      10  # GPIO1.19
#set_io  a      12  # GPIO1.21
#set_io  a      13  # GPIO1.23
#set_io  a      16  # GPIO1.25
#set_io  a      18  # GPIO1.27
#set_io  a      19  # GPIO1.29
#set_io  a      20  # GPIO1.31
#set_io  a      21  # GPIO1.33
#set_io  led1   40  # GPIO1.10
#set_io  led2   51  # GPIO1.12
#set_io  a      37  # GPIO1.14
#set_io  a      36  # GPIO1.16
#set_io  a      34  # GPIO1.18
#set_io  a      33  # GPIO1.20
#set_io  a      30  # GPIO1.22
#set_io  a      29  # GPIO1.24
#set_io  a      28  # GPIO1.26
#set_io  a      27  # GPIO1.28
#set_io  a      26  # GPIO1.30
#set_io  a      25  # GPIO1.32
#set_io  a      24  # GPIO1.34