Initial (untested in hardware) HS2 support

azonenberg · Aug 27, 2018 · 6d0da0d · 6d0da0d
1 parent c89392f
commit 6d0da0d
Show file tree

Hide file tree

Showing 2 changed files with 16 additions and 1 deletion.
diff --git a/FTDIJtagInterface.cpp b/FTDIJtagInterface.cpp
@@ -453,6 +453,20 @@ void FTDIJtagInterface::SharedCtorInit(uint32_t type, const string& layout)
 		SetGpioValueDeferred(3, true);
 	}
 
+	//Digilent HS2
+	//per https://sourceforge.net/p/xc3sprog/bugs/16/#1013/4c91/1c07
+	//"HS1/HS2 DISABLE buffer by default, if D7 (HS1) or D7..D5(HS2) are not 1, then output drivers are not enabled"
+	else if(layout == "hs2")
+	{
+		//GPIOL3...L1 are active HIGH output enable
+		SetGpioDirectionDeferred(3, true);
+		SetGpioDirectionDeferred(2, true);
+		SetGpioDirectionDeferred(1, true);
+		SetGpioValueDeferred(3, true);
+		SetGpioValueDeferred(2, true);
+		SetGpioValueDeferred(1, true);
+	}
+
 	//JTAGKey (or compatible bus blaster etc)
 	else if(layout == "jtagkey")
 	{

diff --git a/FTDIJtagInterface.h b/FTDIJtagInterface.h
@@ -2,7 +2,7 @@
 *                                                                                                                      *
 * ANTIKERNEL v0.1                                                                                                      *
 *                                                                                                                      *
-* Copyright (c) 2012-2016 Andrew D. Zonenberg                                                                          *
+* Copyright (c) 2012-2018 Andrew D. Zonenberg                                                                          *
 * All rights reserved.                                                                                                 *
 *                                                                                                                      *
 * Redistribution and use in source and binary forms, with or without modification, are permitted provided that the     *
@@ -67,6 +67,7 @@
 	Name | Example hardware | Pin configuration
 	-----|------------------|--------------------
 	hs1  | Digilent JTAG-HS1, Digilent JTAG-SMT2, azonenberg's usb-jtag-mini | ADBUS7 is active-high output enable
+	hs2  | Digilent JTAG-HS2 | ADBUS7...5 are active-high output enable
 	jtagkey | Amontec JTAGkey, Bus Blaster w/ JTAGkey compatible buffer | ADBUS4 is active-low output enable, ACBUS0 is TRST_N, ACBUS2 is active-low output enable for TRST_N
 
 	\ingroup interfaces