From bd6cf518f3e584446fa1c9f4085705bd36cd4a0c Mon Sep 17 00:00:00 2001
From: David Shah <davey1576@gmail.com>
Date: Thu, 23 Nov 2017 19:45:27 +0000
Subject: Begin I2C/SPI IP reverse engineering

---
 icefuzz/tests/sb_i2c_io.v | 66 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 66 insertions(+)
 create mode 100644 icefuzz/tests/sb_i2c_io.v

(limited to 'icefuzz/tests/sb_i2c_io.v')

diff --git a/icefuzz/tests/sb_i2c_io.v b/icefuzz/tests/sb_i2c_io.v
new file mode 100644
index 0000000..f339df9
--- /dev/null
+++ b/icefuzz/tests/sb_i2c_io.v
@@ -0,0 +1,66 @@
+module top (
+    input sbclki, sbrwi, sbstbi,
+    input sbadri0, sbadri1, sbadri7,
+    input sbdati0, sbdati1, sbdati7,
+    output sbdato0, sbdato1, sbdato7,
+    output sbacko, i2cirq, i2cwkup,
+    inout scl, sda
+);
+
+wire scli, sclo, scloe, sdai, sdao, sdaoe;
+
+SB_I2C #(
+  .I2C_SLAVE_INIT_ADDR("0b1111100010"),
+  .BUS_ADDR74("0b0011")
+) i2c_ip (
+  .SBCLKI(sbclki),
+  .SBRWI(sbrwi),
+  .SBSTBI(sbstbi),
+  
+  .SBADRI0(sbadri0),
+  .SBADRI1(sbadri1),
+  .SBADRI7(sbadri7),
+  
+  .SBDATI0(sbdati0),
+  .SBDATI1(sbdati1),
+  .SBDATI7(sbdati7),
+  
+  .SBDATO0(sbdato0),
+  .SBDATO1(sbdato1),
+  .SBDATO7(sbdato7),
+  
+  .SBACKO(sbacko),
+  .I2CIRQ(i2cirq),
+  .I2CWKUP(i2cwkup),
+  
+  .SCLI(scli),
+  .SCLO(sclo),
+  .SCLOE(scloe),
+  
+  .SDAI(sdai),
+  .SDAO(sdao),
+  .SDAOE(sdaoe)
+);
+
+SB_IO #(
+  .PIN_TYPE(6'b101001),
+  .PULLUP(1'b1)
+) scl_io (
+  .PACKAGE_PIN(scl),
+  .OUTPUT_ENABLE(scloe),
+  .D_OUT_0(sclo),
+  .D_IN_0(scli)
+);
+
+
+SB_IO #(
+  .PIN_TYPE(6'b101001),
+  .PULLUP(1'b1)
+) sda_io (
+  .PACKAGE_PIN(sda),
+  .OUTPUT_ENABLE(sdaoe),
+  .D_OUT_0(sdao),
+  .D_IN_0(sdai)
+);
+
+endmodule
\ No newline at end of file
-- 
cgit v1.2.3


From 411bcc53ffc095379f20494cce2da9424e4c5465 Mon Sep 17 00:00:00 2001
From: David Shah <davey1576@gmail.com>
Date: Tue, 28 Nov 2017 11:03:47 +0000
Subject: Whitespace fixes

---
 icefuzz/tests/sb_i2c_io.v | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'icefuzz/tests/sb_i2c_io.v')

diff --git a/icefuzz/tests/sb_i2c_io.v b/icefuzz/tests/sb_i2c_io.v
index f339df9..9611129 100644
--- a/icefuzz/tests/sb_i2c_io.v
+++ b/icefuzz/tests/sb_i2c_io.v
@@ -40,7 +40,7 @@ SB_I2C #(
   .SDAI(sdai),
   .SDAO(sdao),
   .SDAOE(sdaoe)
-);
+) /* synthesis SCL_INPUT_FILTERED=1 */;
 
 SB_IO #(
   .PIN_TYPE(6'b101001),
@@ -63,4 +63,4 @@ SB_IO #(
   .D_IN_0(sdai)
 );
 
-endmodule
\ No newline at end of file
+endmodule
-- 
cgit v1.2.3