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+
+# Pinout for the iCE40-HX8K Breakout Board
+
+set_io clk J3
+
+set_io flash_csb R12
+set_io flash_clk R11
+set_io flash_io0 P12
+set_io flash_io1 P11
+
+# for QSPI mode the flash chip on the iCE40-HX8K Breakout Board
+# must be replaced with one that supports QSPI and the IO2 and IO3
+# pins must be soldered to T9 and P8 (center on J3)
+set_io flash_io2 T9
+set_io flash_io3 P8
+
+set_io ser_tx B12
+set_io ser_rx B10
+
+# left on J3
+set_io debug_ser_tx T1
+set_io debug_ser_rx R3
+
+# right on J3
+set_io debug_flash_csb T15
+set_io debug_flash_clk R16
+set_io debug_flash_io0 N12
+set_io debug_flash_io1 P13
+set_io debug_flash_io2 T13
+set_io debug_flash_io3 T14
+
+set_io leds[7] B5 # D9
+set_io leds[6] B4 # D8
+set_io leds[5] A2 # D7
+set_io leds[4] A1 # D6
+set_io leds[3] C5 # D5
+set_io leds[2] C4 # D4
+set_io leds[1] B3 # D3
+set_io leds[0] C3 # D2
+