remove code trying to treat Pins/Resources as Signals/Records (again)

[pinmux.git] / src / spec / testing_stage1.py

diff --git a/src/spec/testing_stage1.py b/src/spec/testing_stage1.py
index c222b71a44a5e12c84c80538fa16b55e470ae20c..f8b458a34d52bc78759f36911104351ca1e102a8 100644 (file)
--- a/src/spec/testing_stage1.py
+++ b/src/spec/testing_stage1.py
@@ -457,13 +457,40 @@ def test_case1():
 
 def test_gpios():
     print("Starting GPIO test case!")
-    # Grab GPIO pad resource from JTAG BS
+    
+    num_gpios = top.gpio_o_test.width
+    # Grab GPIO outpud pad resource from JTAG BS - end of chain
     print (top.jtag.boundary_scan_pads.keys())
     gpio0_o = top.jtag.boundary_scan_pads['gpio_0__gpio0__o']['o']
     gpio1_o = top.jtag.boundary_scan_pads['gpio_0__gpio1__o']['o']
     gpio2_o = top.jtag.boundary_scan_pads['gpio_0__gpio2__o']['o']
     gpio3_o = top.jtag.boundary_scan_pads['gpio_0__gpio3__o']['o']
+
+    # Grab GPIO input pad resource from JTAG BS - start of chain
+    gpio0_pad_in = top.jtag.boundary_scan_pads['gpio_0__gpio0__i']['i']
+    gpio1_pad_in = top.jtag.boundary_scan_pads['gpio_0__gpio1__i']['i']
+    gpio2_pad_in = top.jtag.boundary_scan_pads['gpio_0__gpio2__i']['i']
+    gpio3_pad_in = top.jtag.boundary_scan_pads['gpio_0__gpio3__i']['i']
+    #pad_in = [gpio0_pad_in gpio1_pad_in gpio2_pad_in gpio3_pad_in]
+    
+    # temp test
+    # no: already told you, these are never going to work
+    print ("printing out info about the resource gpio0")
+    print (top.gpio['gpio0']['i'])
+    print ("this is a PIN resource", type(top.gpio['gpio0']['i']))
+    # yield can only be done on SIGNALS or RECORDS,
+    # NOT Pins/Resources gpio0_core_in = yield top.gpio['gpio0']['i']
+    #print("Test gpio0 core in: ", gpio0_core_in)
     
+    #print("JTAG")
+    #print(top.jtag.__class__.__name__, dir(top.jtag))
+    #print("TOP")
+    #print(top.__class__.__name__, dir(top))
+    #print("PORT")
+    #print(top.ports.__class__.__name__, dir(top.ports))
+    #print("GPIO")
+    #print(top.gpio.__class__.__name__, dir(top.gpio))
+
     # Have the sim run through a for-loop where the gpio_o_test is 
     # incremented like a counter (0000, 0001...)
     # At each iteration of the for-loop, assert:
@@ -471,7 +498,7 @@ def test_gpios():
     # TODO + input set at pad matches input seen at core
     # TODO + if gpio_o_test bit is cleared, output seen at pad matches 
     # input seen at pad
-    num_gpio_o_states = top.gpio_o_test.width**2
+    num_gpio_o_states = num_gpios**2
     print("Num of permutations of gpio_o_test record: ", num_gpio_o_states)
     for gpio_o_val in range(0, num_gpio_o_states):
         yield top.gpio_o_test.eq(gpio_o_val) 
@@ -485,11 +512,38 @@ def test_gpios():
         pad3_out = yield gpio3_o
         print("Applied values:", bin(gpio_o_val), "Seeing", 
               pad3_out, pad2_out, pad1_out, pad0_out)
+        # Test without asserting input
         # gpio_o_val is a 4-bit binary number setting each pad (single-bit)
         assert ((gpio_o_val & 0b0001) != 0) == pad0_out
         assert ((gpio_o_val & 0b0010) != 0) == pad1_out
         assert ((gpio_o_val & 0b0100) != 0) == pad2_out
         assert ((gpio_o_val & 0b1000) != 0) == pad3_out
+        # Test with input asserted
+        test_in = 1
+        yield gpio0_pad_in.eq(test_in)
+        # don't need this *and* a yield of 1 clock cycle yield Settle()
+        yield
+
+        # after changing the gpio0 input, the output is also going to
+        # change.  *therefore it must be read again* to get the
+        # snapshot (as a python value)
+        pad0_out = yield gpio0_o
+        pad1_out = yield gpio1_o
+        pad2_out = yield gpio2_o
+        pad3_out = yield gpio3_o
+        print("Applied test_in=1 with values:", bin(gpio_o_val), "Seeing",
+              pad3_out, pad2_out, pad1_out, pad0_out)
+        # Trying to read input from core side, looks like might be a pin...
+        # XXX don't "look like" - don't guess - *print it out*
+        print ("don't guess, CHECK", type(top.gpio.gpio0.i))
+        #temp_in = yield top.gpio.gpio0.i
+        #print("Core input ", temp_in, temp_in==test_in) 
+        #print((gpio_o_val & 0b0001) == 1) 
+        #print(((gpio_o_val & 0b0001) == 1) ^ test_in) 
+        assert (((gpio_o_val & 0b0001) != 0) ^ test_in) == pad0_out
+        test_in = 0
+        yield gpio0_pad_in.eq(test_in)
+        print () # extra print to divide the output
 
     # Another for loop to run through gpio_oe_test. Assert:
     # + oe set at core matches oe seen at pad.