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authorJan Tuomi <jan@jantuomi.fi>2025-03-18 18:38:44 +0200
committerJan Tuomi <jan@jantuomi.fi>2025-03-18 18:38:44 +0200
commit69de37cdb25563f6cbd2a3c1a338b1e0dd47b3a4 (patch)
treec1895044fd0051f919a989460be3ac39a6ab09b8 /atk16_fpga/ice40hx8k-evb.pcf
parent06e8b8dbadf769507abf5368caee253ded139adc (diff)
Start reworking fpga impl
Diffstat (limited to 'atk16_fpga/ice40hx8k-evb.pcf')
-rw-r--r--atk16_fpga/ice40hx8k-evb.pcf10
1 files changed, 7 insertions, 3 deletions
diff --git a/atk16_fpga/ice40hx8k-evb.pcf b/atk16_fpga/ice40hx8k-evb.pcf
index eb63e74..cf75797 100644
--- a/atk16_fpga/ice40hx8k-evb.pcf
+++ b/atk16_fpga/ice40hx8k-evb.pcf
@@ -8,6 +8,10 @@ set_io -nowarn SYSCLK J3 # GBIN6
set_io -nowarn LED1 M12
set_io -nowarn LED2 R16
+# USB<->Serial interface
+set_io -nowarn SERIAL_TX E4
+set_io -nowarn SERIAL_RX B2
+
# Buttons
set_io -nowarn BUT1 K11
set_io -nowarn BUT2 P13
@@ -25,9 +29,9 @@ set_io -nowarn RxD L11
set_io -nowarn TxD T16
# SRAM
-set_io -nowarn SRAM_CS T6
-set_io -nowarn SRAM_OE L9
-set_io -nowarn SRAM_WE T7
+set_io -nowarn SRAM_CS T6 # the schematic says these are inverted
+set_io -nowarn SRAM_OE L9 # but testing says that they are not
+set_io -nowarn SRAM_WE T7 # very weird.
set_io -nowarn SA[0] N6
set_io -nowarn SA[1] T1
set_io -nowarn SA[2] P4