gateware

commit 2481cb4eebe8b17a9c25320cc80fab17a4bcbf8b
parent 0ade8e45ef87b061caf44ab04165340d8200a99a
Author: Brian Swetland <swetland@frotz.net>
Date:   Wed, 26 Dec 2018 20:02:46 -0800

icebreaker diagnostics project

simple square waves on the pmod ports

Diffstat:
A
hdl/board_icebreaker.pcf
 | 
48
++++++++++++++++++++++++++++++++++++++++++++++++
A
hdl/icebreaker_diags.sv
 | 
24
++++++++++++++++++++++++
A
project/icebreaker-diags.def
 | 
6
++++++

3 files changed, 78 insertions(+), 0 deletions(-)
diff --git a/hdl/board_icebreaker.pcf b/hdl/board_icebreaker.pcf
@@ -0,0 +1,48 @@
+set_io osc12m 35
+
+set_io pmod1a[0] 4
+set_io pmod1a[1] 2
+set_io pmod1a[2] 47
+set_io pmod1a[3] 45
+set_io pmod1a[4] 3
+set_io pmod1a[5] 48
+set_io pmod1a[6] 46
+set_io pmod1a[7] 44
+
+set_io pmod1b[0] 43
+set_io pmod1b[1] 38
+set_io pmod1b[2] 34
+set_io pmod1b[3] 31
+set_io pmod1b[4] 42
+set_io pmod1b[5] 36
+set_io pmod1b[6] 32
+set_io pmod1b[7] 28
+
+set_io pmod2[0] 27
+set_io pmod2[1] 25
+set_io pmod2[2] 21
+set_io pmod2[3] 19
+set_io pmod2[4] 26
+set_io pmod2[5] 23
+set_io pmod2[6] 20
+set_io pmod2[7] 18
+
+set_io spi_cs 16
+set_io spi_clk 15
+set_io spi_mosi 17
+set_io spi_miso 14
+set_io spi_wp 12
+set_io spi_rst 13
+
+set_io uart_rx 6
+set_io uart_tx 9
+
+set_io led_red 11
+set_io led_grn 37
+
+set_io button 10
+
+set_io rgb3red 39
+set_io rgb3grn 40
+set_io rgb3blu 41
+
diff --git a/hdl/icebreaker_diags.sv b/hdl/icebreaker_diags.sv
@@ -0,0 +1,24 @@
+
+module top(
+	input osc12m,
+	output [7:0]pmod1a,
+	output [7:0]pmod1b,
+	output [7:0]pmod2,
+	output led_red,
+	output led_grn,
+	input button
+	);
+
+reg [31:0]count;
+
+always_ff @(posedge osc12m)
+	count <= count + 32'h1;
+
+assign pmod1a = count[7:0];
+assign pmod1b = count[7:0];
+assign pmod2 = count[7:0];
+
+assign led_grn = count[20];
+assign led_red = count[21];
+
+endmodule
diff --git a/project/icebreaker-diags.def b/project/icebreaker-diags.def
@@ -0,0 +1,6 @@
+
+PROJECT_TYPE := nextpnr-ice40
+
+PROJECT_SRCS := hdl/icebreaker_diags.sv hdl/board_icebreaker.pcf
+
+PROJECT_NEXTPNR_OPTS := --package sg48 --up5k