from nmutil.util import wrap
-#from soc.debug.jtagutils import (jtag_read_write_reg,
+# from soc.debug.jtagutils import (jtag_read_write_reg,
# jtag_srv, jtag_set_reset,
# jtag_set_ir, jtag_set_get_dr)
jtag_set_shift_ir,
jtag_set_shift_dr,
jtag_set_run,
- jtag_set_idle)
+ jtag_set_idle,
+ tms_data_getset)
from c4m.nmigen.jtag.tap import TAP, IOType
from c4m.nmigen.jtag.bus import Interface as JTAGInterface
# Was thinking of using these functions, but skipped for simplicity for now
# XXX nope. the output from JSON file.
-#from pinfunctions import (i2s, lpc, emmc, sdmmc, mspi, mquadspi, spi,
+# from pinfunctions import (i2s, lpc, emmc, sdmmc, mspi, mquadspi, spi,
# quadspi, i2c, mi2c, jtag, uart, uartfull, rgbttl, ulpi, rgmii, flexbus1,
# flexbus2, sdram1, sdram2, sdram3, vss, vdd, sys, eint, pwm, gpio)
gpios.append("%d*" % i)
return {'uart': ['tx+', 'rx-'],
'gpio': gpios,
- #'jtag': ['tms-', 'tdi-', 'tdo+', 'tck+'],
+ # 'jtag': ['tms-', 'tdi-', 'tdo+', 'tck+'],
'i2c': ['sda*', 'scl+']}
+
"""
a function is needed which turns the results of dummy_pinset()
into:
resources.append(UARTResource('uart', 0, tx='tx', rx='rx'))
elif periph == 'gpio':
#print("GPIO required!")
- print ("GPIO is defined as '*' type, meaning i, o and oe needed")
+ print("GPIO is defined as '*' type, meaning i, o and oe needed")
ios = []
for pin in pins:
- pname = "gpio"+pin[:-1] # strip "*" on end
+ pname = "gpio"+pin[:-1] # strip "*" on end
# urrrr... tristsate and io assume a single pin which is
# of course exactly what we don't want in an ASIC: we want
# *all three* pins but the damn port is not outputted
# therefore the only way to get a triplet of i/o/oe
# is to *actually* create explicit triple pins
# XXX ARRRGH, doesn't work
- #pad = Subsignal("io",
+ # pad = Subsignal("io",
# Pins("%s_i %s_o %s_oe" % (pname, pname, pname),
# dir="io", assert_width=3))
#ios.append(Resource(pname, 0, pad))
pads.append(Subsignal("oe",
Pins(pname+"_oe", dir="o", assert_width=1)))
ios.append(Resource.family(pname, 0, default_name=pname,
- ios=pads))
+ ios=pads))
resources.append(Resource.family(periph, 0, default_name="gpio",
ios=ios))
io.append(Subsignal("tdo", Pins("tdo", dir="o", assert_width=1)))
return Resource.family(*args, default_name="jtag", ios=io)
+
def UARTResource(*args, rx, tx):
io = []
io.append(Subsignal("rx", Pins(rx, dir="i", assert_width=1)))
m = Module()
m.submodules.jtag = self.jtag
#m.submodules.sram = self.sram
-
+
#count = Signal(5)
#m.d.sync += count.eq(count+1)
- print ("resources", platform, jtag_resources.items())
+ print("resources", platform, jtag_resources.items())
gpio = self.jtag.request('gpio')
- print (gpio, gpio.layout, gpio.fields)
+ print(gpio, gpio.layout, gpio.fields)
# get the GPIO bank, mess about with some of the pins
#m.d.comb += gpio.gpio0.o.eq(1)
#m.d.comb += gpio.gpio1.o.eq(gpio.gpio2.i)
#m.d.comb += gpio.gpio1.oe.eq(count[4])
#m.d.sync += count[0].eq(gpio.gpio1.i)
-
+
num_gpios = 4
gpio_i_ro = Signal(num_gpios)
gpio_o_test = Signal(num_gpios)
gpio_oe_test = Signal(num_gpios)
- # Create a read-only copy of core-side GPIO input signals
+ # Create a read-only copy of core-side GPIO input signals
# for Simulation asserts
m.d.comb += gpio_i_ro[0].eq(gpio.gpio0.i)
m.d.comb += gpio_i_ro[1].eq(gpio.gpio1.i)
m.d.comb += gpio_i_ro[2].eq(gpio.gpio2.i)
m.d.comb += gpio_i_ro[3].eq(gpio.gpio3.i)
- # Wire up the output signal of each gpio by XOR'ing each bit of
+ # Wire up the output signal of each gpio by XOR'ing each bit of
# gpio_o_test with gpio's input
- # Wire up each bit of gpio_oe_test signal to oe signal of each gpio.
+ # Wire up each bit of gpio_oe_test signal to oe signal of each gpio.
# Turn into a loop at some point, probably a way without
# using get_attr()
m.d.comb += gpio.gpio0.o.eq(gpio_o_test[0] ^ gpio.gpio0.i)
m.d.comb += gpio.gpio2.o.eq(gpio_o_test[2] ^ gpio.gpio2.i)
m.d.comb += gpio.gpio3.o.eq(gpio_o_test[3] ^ gpio.gpio3.i)
- m.d.comb += gpio.gpio0.oe.eq(gpio_oe_test[0])
- m.d.comb += gpio.gpio1.oe.eq(gpio_oe_test[1])
- m.d.comb += gpio.gpio2.oe.eq(gpio_oe_test[2])
- m.d.comb += gpio.gpio3.oe.eq(gpio_oe_test[3])
+ m.d.comb += gpio.gpio0.oe.eq(gpio_oe_test[0])# ^ gpio.gpio0.i)
+ m.d.comb += gpio.gpio1.oe.eq(gpio_oe_test[1])# ^ gpio.gpio1.i)
+ m.d.comb += gpio.gpio2.oe.eq(gpio_oe_test[2])# ^ gpio.gpio2.i)
+ m.d.comb += gpio.gpio3.oe.eq(gpio_oe_test[3])# ^ gpio.gpio3.i)
# get the UART resource, mess with the output tx
uart = self.jtag.request('uart')
- print ("uart fields", uart, uart.fields)
- self.intermediary = Signal()
- m.d.comb += uart.tx.eq(self.intermediary)
- m.d.comb += self.intermediary.eq(uart.rx)
+ print("uart fields", uart, uart.fields)
+ self.uart_tx_test = Signal()
+ #self.intermediary = Signal()
+ #m.d.comb += uart.tx.eq(self.intermediary)
+ #m.d.comb += self.intermediary.eq(uart.rx)
+ # Allow tx to be controlled externally
+ m.d.comb += uart.tx.eq(self.uart_tx_test ^ uart.rx)
# I2C
num_i2c = 1
i2c_sda_oe_test = Signal(num_i2c)
i2c_scl_oe_test = Signal(num_i2c)
i2c = self.jtag.request('i2c')
- print ("i2c fields", i2c, i2c.fields)
+ print("i2c fields", i2c, i2c.fields)
# Connect in loopback
- m.d.comb += i2c.scl.o.eq(i2c.scl.i)
m.d.comb += i2c.sda.o.eq(i2c.sda.i)
+ m.d.comb += i2c.scl.o.eq(i2c.scl.i)
# Connect output enable to test port for sim
- m.d.comb += i2c.sda.oe.eq(i2c_sda_oe_test)
- m.d.comb += i2c.scl.oe.eq(i2c_scl_oe_test)
+ m.d.comb += i2c.sda.oe.eq(i2c_sda_oe_test)# ^ i2c.sda.i)
+ m.d.comb += i2c.scl.oe.eq(i2c_scl_oe_test)# ^ i2c.scl.i)
# to even be able to get at objects, you first have to make them
# available - i.e. not as local variables
# Public attributes are equivalent to input/output ports in hdl's
self.gpio = gpio
self.uart = uart
+ self.uart_tx_test
self.i2c = i2c
self.i2c_sda_oe_test = i2c_sda_oe_test
self.i2c_scl_oe_test = i2c_scl_oe_test
# sigh these wire up to the pads so you cannot set Signals
# that are already wired
- if self.no_jtag_connect: # bypass jtag pad connect for testing purposes
+ if self.no_jtag_connect: # bypass jtag pad connect for testing purposes
return m
return self.jtag.boundary_elaborate(m, platform)
def __iter__(self):
yield from self.jtag.iter_ports()
+
'''
_trellis_command_templates = [
r"""
# sigh, have to create a dummy platform for now.
# TODO: investigate how the heck to get it to output ilang. or verilog.
# or, anything, really. but at least it doesn't barf
+
+
class ASICPlatform(TemplatedPlatform):
connectors = []
resources = OrderedDict()
required_tools = []
- command_templates = ['/bin/true'] # no command needed: stops barfing
+ command_templates = ['/bin/true'] # no command needed: stops barfing
file_templates = {
**TemplatedPlatform.build_script_templates,
"{{name}}.il": r"""
""",
}
toolchain = None
- default_clk = "clk" # should be picked up / overridden by platform sys.clk
- default_rst = "rst" # should be picked up / overridden by platform sys.rst
+ default_clk = "clk" # should be picked up / overridden by platform sys.clk
+ default_rst = "rst" # should be picked up / overridden by platform sys.rst
def __init__(self, resources, jtag):
self.jtag = jtag
self.add_resources([JTAGResource('jtag', 0)], no_boundary_scan=True)
def add_resources(self, resources, no_boundary_scan=False):
- print ("ASICPlatform add_resources", resources)
+ print("ASICPlatform add_resources", resources)
return super().add_resources(resources)
- #def iter_ports(self):
+ # def iter_ports(self):
# yield from super().iter_ports()
# for io in self.jtag.ios.values():
# print ("iter ports", io.layout, io)
valid_xdrs=(0,), valid_attrs=None)
m = Module()
- print (" get_input", pin, "port", port, port.layout)
+ print(" get_input", pin, "port", port, port.layout)
m.d.comb += pin.i.eq(self._invert_if(invert, port))
return m
valid_xdrs=(0,), valid_attrs=None)
m = Module()
- print (" get_output", pin, "port", port, port.layout)
+ print(" get_output", pin, "port", port, port.layout)
m.d.comb += port.eq(self._invert_if(invert, pin.o))
return m
self._check_feature("single-ended tristate", pin, attrs,
valid_xdrs=(0,), valid_attrs=None)
- print (" get_tristate", pin, "port", port, port.layout)
+ print(" get_tristate", pin, "port", port, port.layout)
m = Module()
- print (" pad", pin, port, attrs)
- print (" pin", pin.layout)
+ print(" pad", pin, port, attrs)
+ print(" pin", pin.layout)
return m
# m.submodules += Instance("$tribuf",
# p_WIDTH=pin.width,
self._check_feature("single-ended input/output", pin, attrs,
valid_xdrs=(0,), valid_attrs=None)
- print (" get_input_output", pin, "port", port, port.layout)
+ print(" get_input_output", pin, "port", port, port.layout)
m = Module()
- print (" port layout", port.layout)
- print (" pin", pin)
- print (" layout", pin.layout)
- #m.submodules += Instance("$tribuf",
+ print(" port layout", port.layout)
+ print(" pin", pin)
+ print(" layout", pin.layout)
+ # m.submodules += Instance("$tribuf",
# p_WIDTH=pin.width,
# i_EN=io.pad.oe,
# i_A=self._invert_if(invert, io.pad.o),
# o_Y=port,
- #)
+ # )
# Create aliases for the port sub-signals
port_i = port.io[0]
port_o = port.io[1]
return super().toolchain_prepare(fragment, name, **kwargs)
-
def test_case0():
print("Starting sanity test case!")
print("printing out list of stuff in top")
- print ("JTAG IOs", top.jtag.ios)
+ print("JTAG IOs", top.jtag.ios)
# ok top now has a variable named "gpio", let's enumerate that too
print("printing out list of stuff in top.gpio and its type")
print(top.gpio.__class__.__name__, dir(top.gpio))
yield Settle()
yield top.gpio.gpio2.o.eq(0)
yield top.gpio.gpio3.o.eq(1)
- yield
+ yield
yield top.gpio.gpio3.oe.eq(1)
yield
yield top.gpio.gpio3.oe.eq(0)
yield uart_pad.rx.i.eq(gpio_o2)
yield Delay(delayVal)
yield Settle()
- yield # one clock cycle
+ yield # one clock cycle
tx_val = yield uart_pad.tx.o
- print ("xmit uart", tx_val, gpio_o2)
-
- print ("jtag pad table keys")
- print (top.jtag.resource_table_pads.keys())
+ print("xmit uart", tx_val, gpio_o2)
+
+ print("jtag pad table keys")
+ print(top.jtag.resource_table_pads.keys())
uart_pad = top.jtag.resource_table_pads[('uart', 0)]
- print ("uart pad", uart_pad)
- print ("uart pad", uart_pad.layout)
+ print("uart pad", uart_pad)
+ print("uart pad", uart_pad.layout)
yield top.gpio.gpio2.oe.eq(0)
yield top.gpio.gpio3.oe.eq(0)
yield top.jtag.gpio.gpio2.i.eq(0)
yield Delay(delayVal)
- yield Settle()
-
-# Code borrowed from cesar, runs, but shouldn't actually work because of
-# self. statements and non-existent signal names.
-def test_case1():
- print("Example test case")
- yield Passive()
- while True:
- # Settle() is needed to give a quick response to
- # the zero delay case
- yield Settle()
- # wait for rel_o to become active
- while not (yield self.rel_o):
- yield
- yield Settle()
- # read the transaction parameters
- assert self.expecting, "an unexpected result was produced"
- delay = (yield self.delay)
- expected = (yield self.expected)
- # wait for `delay` cycles
- for _ in range(delay):
- yield
- # activate go_i for one cycle
- yield self.go_i.eq(1)
- yield self.count.eq(self.count + 1)
- yield
- # check received data against the expected value
- result = (yield self.port)
- assert result == expected,\
- f"expected {expected}, received {result}"
- yield self.go_i.eq(0)
- yield self.port.eq(0)
-
-def test_gpios():
+ yield Settle()
+
+
+def test_gpios(dut):
print("Starting GPIO test case!")
-
- num_gpios = top.gpio_o_test.width
+ # TODO: make pad access parametrisable to cope with more than 4 GPIOs
+ num_gpios = dut.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']
- gpio_pad_out = [ gpio0_o, gpio1_o, gpio2_o, gpio3_o]
+ print(dut.jtag.boundary_scan_pads.keys())
+ gpio0_o = dut.jtag.boundary_scan_pads['gpio_0__gpio0__o']['o']
+ gpio1_o = dut.jtag.boundary_scan_pads['gpio_0__gpio1__o']['o']
+ gpio2_o = dut.jtag.boundary_scan_pads['gpio_0__gpio2__o']['o']
+ gpio3_o = dut.jtag.boundary_scan_pads['gpio_0__gpio3__o']['o']
+ gpio_pad_out = [gpio0_o, gpio1_o, gpio2_o, gpio3_o]
# Grab GPIO output enable pad resource from JTAG BS - end of chain
- gpio0_oe = top.jtag.boundary_scan_pads['gpio_0__gpio0__oe']['o']
- gpio1_oe = top.jtag.boundary_scan_pads['gpio_0__gpio1__oe']['o']
- gpio2_oe = top.jtag.boundary_scan_pads['gpio_0__gpio2__oe']['o']
- gpio3_oe = top.jtag.boundary_scan_pads['gpio_0__gpio3__oe']['o']
+ gpio0_oe = dut.jtag.boundary_scan_pads['gpio_0__gpio0__oe']['o']
+ gpio1_oe = dut.jtag.boundary_scan_pads['gpio_0__gpio1__oe']['o']
+ gpio2_oe = dut.jtag.boundary_scan_pads['gpio_0__gpio2__oe']['o']
+ gpio3_oe = dut.jtag.boundary_scan_pads['gpio_0__gpio3__oe']['o']
gpio_pad_oe = [gpio0_oe, gpio1_oe, gpio2_oe, gpio3_oe]
# 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']
+ gpio0_pad_in = dut.jtag.boundary_scan_pads['gpio_0__gpio0__i']['i']
+ gpio1_pad_in = dut.jtag.boundary_scan_pads['gpio_0__gpio1__i']['i']
+ gpio2_pad_in = dut.jtag.boundary_scan_pads['gpio_0__gpio2__i']['i']
+ gpio3_pad_in = dut.jtag.boundary_scan_pads['gpio_0__gpio3__i']['i']
gpio_pad_in = [gpio0_pad_in, gpio1_pad_in, gpio2_pad_in, gpio3_pad_in]
-
- # Have the sim run through a for-loop where the gpio_o_test is
+
+ # 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:
# + output set at core matches output seen at pad
# TODO + input set at pad matches input seen at core
- # TODO + if gpio_o_test bit is cleared, output seen at pad matches
+ # TODO + if gpio_o_test bit is cleared, output seen at pad matches
# input seen at pad
num_gpio_o_states = num_gpios**2
pad_out = [0] * num_gpios
pad_oe = [0] * num_gpios
#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)
- #yield Settle()
- yield # Move to the next clk cycle
-
+ yield dut.gpio_o_test.eq(gpio_o_val)
+ # yield Settle()
+ yield # Move to the next clk cycle
+
# Cycle through all input combinations
for gpio_i_val in range(0, num_gpio_o_states):
# Set each gpio input at pad to test value
yield
for gpio_bit in range(0, num_gpios):
# check core and pad in
- gpio_i_ro = yield top.gpio_i_ro[gpio_bit]
+ gpio_i_ro = yield dut.gpio_i_ro[gpio_bit]
out_test_bit = ((gpio_o_val & (1 << gpio_bit)) != 0)
in_bit = ((gpio_i_val & (1 << gpio_bit)) != 0)
- # Check that the core end input matches pad
+ # Check that the core end input matches pad
assert in_bit == gpio_i_ro
# Test that the output at pad matches:
# Pad output == given test output XOR test input
assert (out_test_bit ^ in_bit) == pad_out[gpio_bit]
-
+
# For debugging - VERY verbose
- #print("---------------------")
+ # print("---------------------")
#print("Test Out: ", bin(gpio_o_val))
- #print("Test Input: ", bin(gpio_i_val))
+ #print("Test Input: ", bin(gpio_i_val))
# Print MSB first
#print("Pad Output: ", list(reversed(pad_out)))
- #print("---------------------")
-
+ # print("---------------------")
+
# For-loop for testing output enable signals
for gpio_o_val in range(0, num_gpio_o_states):
- yield top.gpio_oe_test.eq(gpio_o_val)
- yield # Move to the next clk cycle
-
+ yield dut.gpio_oe_test.eq(gpio_o_val)
+ yield # Move to the next clk cycle
+
for gpio_bit in range(0, num_gpios):
pad_oe[gpio_bit] = yield gpio_pad_oe[gpio_bit]
- yield
+ yield
for gpio_bit in range(0, num_gpios):
oe_test_bit = ((gpio_o_val & (1 << gpio_bit)) != 0)
# oe set at core matches oe seen at pad:
assert oe_test_bit == pad_oe[gpio_bit]
# For debugging - VERY verbose
- #print("---------------------")
+ # print("---------------------")
#print("Test Output Enable: ", bin(gpio_o_val))
# Print MSB first
#print("Pad Output Enable: ", list(reversed(pad_oe)))
- #print("---------------------")
+ # print("---------------------")
+
+ # Reset test ouput register
+ yield dut.gpio_o_test.eq(0)
print("GPIO Test PASSED!")
-def test_uart():
+
+def test_uart(dut):
# grab the JTAG resource pad
- print ()
- print ("bs pad keys", top.jtag.boundary_scan_pads.keys())
- print ()
- uart_rx_pad = top.jtag.boundary_scan_pads['uart_0__rx']['i']
- uart_tx_pad = top.jtag.boundary_scan_pads['uart_0__tx']['o']
+ print()
+ print("bs pad keys", dut.jtag.boundary_scan_pads.keys())
+ print()
+ uart_rx_pad = dut.jtag.boundary_scan_pads['uart_0__rx']['i']
+ uart_tx_pad = dut.jtag.boundary_scan_pads['uart_0__tx']['o']
- print ("uart rx pad", uart_rx_pad)
- print ("uart tx pad", uart_tx_pad)
+ print("uart rx pad", uart_rx_pad)
+ print("uart tx pad", uart_tx_pad)
# Test UART by writing 0 and 1 to RX
# Internally TX connected to RX,
# so match pad TX with RX
for i in range(0, 2):
yield uart_rx_pad.eq(i)
- #yield uart_rx_pad.eq(i)
+ # yield uart_rx_pad.eq(i)
yield Settle()
- yield # one clock cycle
+ yield # one clock cycle
tx_val = yield uart_tx_pad
- print ("xmit uart", tx_val, 1)
+ print("xmit uart", tx_val, 1)
assert tx_val == i
print("UART Test PASSED!")
-def test_i2c():
- i2c_sda_i_pad = top.jtag.boundary_scan_pads['i2c_0__sda__i']['i']
- i2c_sda_o_pad = top.jtag.boundary_scan_pads['i2c_0__sda__o']['o']
- i2c_sda_oe_pad = top.jtag.boundary_scan_pads['i2c_0__sda__oe']['o']
- i2c_scl_i_pad = top.jtag.boundary_scan_pads['i2c_0__scl__i']['i']
- i2c_scl_o_pad = top.jtag.boundary_scan_pads['i2c_0__scl__o']['o']
- i2c_scl_oe_pad = top.jtag.boundary_scan_pads['i2c_0__scl__oe']['o']
+def test_i2c(dut):
+ i2c_sda_i_pad = dut.jtag.boundary_scan_pads['i2c_0__sda__i']['i']
+ i2c_sda_o_pad = dut.jtag.boundary_scan_pads['i2c_0__sda__o']['o']
+ i2c_sda_oe_pad = dut.jtag.boundary_scan_pads['i2c_0__sda__oe']['o']
+
+ i2c_scl_i_pad = dut.jtag.boundary_scan_pads['i2c_0__scl__i']['i']
+ i2c_scl_o_pad = dut.jtag.boundary_scan_pads['i2c_0__scl__o']['o']
+ i2c_scl_oe_pad = dut.jtag.boundary_scan_pads['i2c_0__scl__oe']['o']
- #i2c_pad = top.jtag.resource_table_pads[('i2c', 0)]
+ #i2c_pad = dut.jtag.resource_table_pads[('i2c', 0)]
#print ("i2c pad", i2c_pad)
#print ("i2c pad", i2c_pad.layout)
for i in range(0, 2):
- yield i2c_sda_i_pad.eq(i) #i2c_pad.sda.i.eq(i)
- yield i2c_scl_i_pad.eq(i) #i2c_pad.scl.i.eq(i)
- yield top.i2c_sda_oe_test.eq(i)
- yield top.i2c_scl_oe_test.eq(i)
+ yield i2c_sda_i_pad.eq(i) # i2c_pad.sda.i.eq(i)
+ yield i2c_scl_i_pad.eq(i) # i2c_pad.scl.i.eq(i)
+ yield dut.i2c_sda_oe_test.eq(i)
+ yield dut.i2c_scl_oe_test.eq(i)
yield Settle()
- yield # one clock cycle
+ yield # one clock cycle
sda_o_val = yield i2c_sda_o_pad
scl_o_val = yield i2c_scl_o_pad
sda_oe_val = yield i2c_sda_oe_pad
scl_oe_val = yield i2c_scl_oe_pad
- print ("Test input: ", i, " SDA/SCL out: ", sda_o_val, scl_o_val,
- " SDA/SCL oe: ", sda_oe_val, scl_oe_val)
+ print("Test input: ", i, " SDA/SCL out: ", sda_o_val, scl_o_val,
+ " SDA/SCL oe: ", sda_oe_val, scl_oe_val)
assert sda_o_val == i
assert scl_o_val == i
assert sda_oe_val == i
BS_INTEST = 0
BS_SAMPLE = 2
BS_PRELOAD = 2
-def test_jtag_bs_chain():
- #print(dir(top.jtag))
- #print(dir(top))
- print("JTAG BS Reset")
- yield from jtag_set_reset(top.jtag)
- #print("JTAG I/O dictionary of core/pad signals:")
- #print(top.jtag.ios.keys())
- # Based on number of ios entries, produce a test shift reg pattern - TODO
- bslen = len(top.jtag.ios)
- bsdata = 2**bslen - 1 # Fill with all 1s for now
- empty_data = 0 # for testing
- print("TDI BS Data: {0:b}, Data Length (bits): {1}"
- .format(bsdata, bslen))
-
- # TODO: make into a loop for future expansion
- # All pad input signals to drive and output via TDO
- i2c_sda_i_pad = top.jtag.boundary_scan_pads['i2c_0__sda__i']['i']
- i2c_scl_i_pad = top.jtag.boundary_scan_pads['i2c_0__scl__i']['i']
- uart_rx_pad = top.jtag.boundary_scan_pads['uart_0__rx']['i']
- 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']
-
- # Assert all for now
- #yield i2c_sda_i_pad.eq(1)
- #yield i2c_scl_i_pad.eq(1)
- yield uart_rx_pad.eq(1)
- #yield gpio0_pad_in.eq(1)
- #yield gpio1_pad_in.eq(1)
- #yield gpio2_pad_in.eq(1)
- #yield gpio3_pad_in.eq(1)
+def test_jtag_bs_chain(dut):
+ # print(dir(dut.jtag))
+ # print(dir(dut))
+ # print(dut.jtag._ir_width)
+ # print("JTAG I/O dictionary of core/pad signals:")
+ # print(dut.jtag.ios.keys())
- # Run through GPIO, UART, and I2C tests so that all signals are asserted
- #yield from test....
+ print("JTAG BS Reset")
+ yield from jtag_set_reset(dut.jtag)
+
+ # TODO: cleanup!
+ # Based on number of ios entries, produce a test shift reg pattern
+ bslen = len(dut.jtag.ios)
+ bsdata = 2**bslen - 1 # Fill with all 1s for now
+ fulldata = bsdata # for testing
+ emptydata = 0 # for testing
+
+ mask_i = produce_ios_mask(dut, is_i=True, is_o=False, is_oe=False)
+ mask_i_oe = produce_ios_mask(dut, is_i=True, is_o=False, is_oe=True)
+ mask_o = produce_ios_mask(dut, is_i=False, is_o=True, is_oe=False)
+ mask_oe = produce_ios_mask(dut, is_i=False, is_o=False, is_oe=True)
+ mask_o_oe = produce_ios_mask(dut, is_i=False, is_o=True, is_oe=True)
+ mask_low = 0
+ mask_all = 2**bslen - 1
+
+ num_bit_format = "{:0" + str(bslen) + "b}"
+ print("Masks (LSB corresponds to bit0 of the BS chain register!)")
+ print("Input only :", num_bit_format.format(mask_i))
+ print("Input and oe:", num_bit_format.format(mask_o_oe))
+ print("Output only :", num_bit_format.format(mask_o))
+ print("Out en only :", num_bit_format.format(mask_oe))
+ print("Output and oe:", num_bit_format.format(mask_o_oe))
+
+ yield from jtag_unit_test(dut, BS_EXTEST, False, bsdata, mask_o_oe, mask_o)
+ yield from jtag_unit_test(dut, BS_SAMPLE, False, bsdata, mask_low, mask_low)
- result = yield from jtag_read_write_reg(top.jtag, BS_EXTEST, bslen,
- bsdata)
- print("TDO BS Data: {0:b}".format(result))
+ # Run through GPIO, UART, and I2C tests so that all signals are asserted
+ yield from test_gpios(dut)
+ yield from test_uart(dut)
+ yield from test_i2c(dut)
- # Implement a decode which uses ios keys to determine if correct bits in
- # the TDO stream are set (using asserts) - TODO
- #ios_keys = list(top.jtag.ios.keys())
- #for i in range(0, bslen):
- # print(ios_keys[i])
+ bsdata = emptydata
+ yield from jtag_unit_test(dut, BS_EXTEST, True, bsdata, mask_i, mask_i_oe)
+ yield from jtag_unit_test(dut, BS_SAMPLE, True, bsdata, mask_all, mask_all)
print("JTAG Boundary Scan Chain Test PASSED!")
+# ONLY NEEDED FOR DEBUG - MAKE SURE TAP DRIVER FUNCTIONS CORRECT FIRST!
+def swap_bit_order(word, wordlen):
+ rev_word = 0
+ for i in range(wordlen):
+ rev_word += ((word >> i) & 0x1) << (wordlen-1-i)
+
+ num_bit_format = "{:0" + str(wordlen) + "b}"
+ print_str = "Orig:" + num_bit_format + " | Bit Swapped:" + num_bit_format
+ print(print_str.format(word, rev_word))
+
+ return rev_word
+
+def jtag_unit_test(dut, bs_type, is_io_set, bsdata, exp_pads, exp_tdo):
+ bslen = len(dut.jtag.ios) #* 2
+ print("Chain len based on jtag.ios: {}".format(bslen))
+ if bs_type == BS_EXTEST:
+ print("Sending TDI data with core/pads disconnected")
+ elif bs_type == BS_SAMPLE:
+ print("Sending TDI data with core/pads connected")
+ else:
+ raise Exception("Unsupported BS chain mode!")
+
+ if is_io_set:
+ print("All pad inputs/core outputs set, bs data: {0:b}"
+ .format(bsdata))
+ else:
+ print("All pad inputs/core outputs reset, bs data: {0:b}"
+ .format(bsdata))
+
+ result = yield from jtag_read_write_reg(dut.jtag, bs_type, bslen, bsdata)
+ if bs_type == BS_EXTEST:
+ # TDO is only outputting previous BS chain data, must configure to
+ # output BS chain to the main shift register
+
+ # Previous test may not have been EXTEST, need to switch over
+ yield from jtag_set_shift_dr(dut.jtag)
+ result = yield from tms_data_getset(dut.jtag, bs_type, bslen, bsdata)
+ yield from jtag_set_idle(dut.jtag)
+
+ # TODO: make format based on bslen, not a magic number 20-bits wide
+ print("TDI BS Data: {0:020b}, Data Length (bits): {1}"
+ .format(bsdata, bslen))
+ print("TDO BS Data: {0:020b}".format(result))
+ yield from check_ios_keys(dut, result, exp_pads, exp_tdo)
+
+ #yield # testing extra clock
+ # Reset shift register between tests
+ yield from jtag_set_reset(dut.jtag)
+
+def check_ios_keys(dut, tdo_data, test_vector, exp_tdo):
+ print("Checking ios signals with TDO and given test vectors")
+ bslen = len(dut.jtag.ios)
+ ios_keys = list(dut.jtag.ios.keys())
+ print(" ios Signals | From TDO | --- | ----")
+ print("Side|Exp|Seen | Side|Exp|Seen | I/O | Name")
+ for i in range(0, bslen):
+ signal = ios_keys[i]
+ exp_pad_val = (test_vector >> i) & 0b1
+ exp_tdo_val = (exp_tdo >> i) & 0b1
+ tdo_value = (tdo_data >> i) & 0b1
+ # Only observed signals so far are outputs...
+ # TODO: Cleanup!
+ if check_if_signal_output(ios_keys[i]):
+ temp_result = yield dut.jtag.boundary_scan_pads[signal]['o']
+ print("Pad |{0:3b}|{1:4b} | Core|{2:3b}|{3:4b} | o | {4}"
+ .format(exp_pad_val, temp_result, exp_tdo_val, tdo_value, signal))
+ # ...or inputs
+ elif check_if_signal_input(ios_keys[i]):
+ temp_result = yield dut.jtag.boundary_scan_pads[signal]['i']
+ print("Pad |{0:3b}|{1:4b} | Pad |{2:3b}|{3:4b} | i | {4}"
+ .format(exp_pad_val, temp_result, exp_tdo_val, tdo_value, signal))
+ else:
+ raise Exception("Signal in JTAG ios dict: " + signal
+ + " cannot be determined as input or output!")
+ assert temp_result == exp_pad_val
+ assert tdo_value == exp_tdo_val
+
+# TODO: may need to expand to support further signals contained in the
+# JTAG module ios dictionary!
+
+
+def check_if_signal_output(signal_str):
+ if ('__o' in signal_str) or ('__tx' in signal_str):
+ return True
+ else:
+ return False
+
+
+def check_if_signal_input(signal_str):
+ if ('__i' in signal_str) or ('__rx' in signal_str):
+ return True
+ else:
+ return False
+
+
+def produce_ios_mask(dut, is_i=False, is_o=True, is_oe=False):
+ if is_i and not(is_o) and not(is_oe):
+ mask_type = "input"
+ elif not(is_i) and is_o:
+ mask_type = "output"
+ else:
+ mask_type = "i={:b} | o={:b} | oe={:b} ".format(is_i, is_o, is_oe)
+ print("Determine the", mask_type, "mask")
+ bslen = len(dut.jtag.ios)
+ ios_keys = list(dut.jtag.ios.keys())
+ mask = 0
+ for i in range(0, bslen):
+ signal = ios_keys[i]
+ if (('__o' in ios_keys[i]) or ('__tx' in ios_keys[i])):
+ if ('__oe' in ios_keys[i]):
+ if is_oe:
+ mask += (1 << i)
+ else:
+ if is_o:
+ mask += (1 << i)
+ else:
+ if is_i:
+ mask += (1 << i)
+ return mask
+
+
+def print_all_ios_keys(dut):
+ print("Print all ios keys")
+ bslen = len(dut.jtag.ios)
+ ios_keys = list(dut.jtag.ios.keys())
+ for i in range(0, bslen):
+ signal = ios_keys[i]
+ # Check if outputs are asserted
+ if ('__o' in ios_keys[i]) or ('__tx' in ios_keys[i]):
+ print("Pad Output | Name: ", signal)
+ else:
+ print("Pad Input | Name: ", signal)
+
+
# Copied from test_jtag_tap.py
# JTAG-ircodes for accessing DMI
DMI_ADDR = 5
WB_READ = 9
WB_WRRD = 10
+
def test_jtag_dmi_wb():
print(dir(top.jtag))
print(dir(top))
# read idcode
idcode = yield from jtag_read_write_reg(top.jtag, 0b1, 32)
- print ("idcode", hex(idcode))
+ print("idcode", hex(idcode))
assert idcode == 0x18ff
####### JTAG to DMI ######
# read DMI CTRL register
status = yield from jtag_read_write_reg(top.jtag, DMI_READ, 64)
- print ("dmi ctrl status", hex(status))
+ print("dmi ctrl status", hex(status))
#assert status == 4
# write DMI address
# write DMI CTRL register
status = yield from jtag_read_write_reg(top.jtag, DMI_WRRD, 64, 0b101)
- print ("dmi ctrl status", hex(status))
- #assert status == 4 # returned old value (nice! cool feature!)
+ print("dmi ctrl status", hex(status))
+ # assert status == 4 # returned old value (nice! cool feature!)
# write DMI address
yield from jtag_read_write_reg(top.jtag, DMI_ADDR, 8, DBGCore.CTRL)
# read DMI CTRL register
status = yield from jtag_read_write_reg(top.jtag, DMI_READ, 64)
- print ("dmi ctrl status", hex(status))
+ print("dmi ctrl status", hex(status))
#assert status == 6
# write DMI MSR address
# read DMI MSR register
msr = yield from jtag_read_write_reg(top.jtag, DMI_READ, 64)
- print ("dmi msr", hex(msr))
+ print("dmi msr", hex(msr))
#assert msr == 0xdeadbeef
####### JTAG to Wishbone ######
# write/read wishbone data
data = yield from jtag_read_write_reg(top.jtag, WB_WRRD, 16, 0xfeef)
- print ("wb write", hex(data))
+ print("wb write", hex(data))
# write Wishbone address
yield from jtag_read_write_reg(top.jtag, WB_ADDR, 16, 0x18)
# write/read wishbone data
data = yield from jtag_read_write_reg(top.jtag, WB_READ, 16, 0)
- print ("wb read", hex(data))
+ print("wb read", hex(data))
####### done - tell dmi_sim to stop (otherwise it won't) ########
top.jtag.stop = True
-def test_debug_print():
+
+def test_debug_print(dut):
print("Test used for getting object methods/information")
print("Moved here to clear clutter of gpio test")
-
- print ("printing out info about the resource gpio0")
- print (top.gpio['gpio0']['i'])
- print ("this is a PIN resource", type(top.gpio['gpio0']['i']))
+
+ print("printing out info about the resource gpio0")
+ print(dut.gpio['gpio0']['i'])
+ print("this is a PIN resource", type(dut.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(dut.jtag.__class__.__name__, dir(dut.jtag))
print("TOP")
- print(top.__class__.__name__, dir(top))
+ print(dut.__class__.__name__, dir(dut))
print("PORT")
- print(top.ports.__class__.__name__, dir(top.ports))
+ print(dut.ports.__class__.__name__, dir(dut.ports))
print("GPIO")
- print(top.gpio.__class__.__name__, dir(top.gpio))
-
+ print(dut.gpio.__class__.__name__, dir(dut.gpio))
+
print("UART")
- print(dir(top.jtag.boundary_scan_pads['uart_0__rx__pad__i']))
- print(top.jtag.boundary_scan_pads['uart_0__rx__pad__i'].keys())
- print(top.jtag.boundary_scan_pads['uart_0__tx__pad__o'])
- #print(type(top.jtag.boundary_scan_pads['uart_0__rx__pad__i']['rx']))
- print ("jtag pad table keys")
- print (top.jtag.resource_table_pads.keys())
- print(type(top.jtag.resource_table_pads[('uart', 0)].rx.i))
- print(top.jtag.boundary_scan_pads['uart_0__rx__i'])
+ print(dir(dut.jtag.boundary_scan_pads['uart_0__rx__pad__i']))
+ print(dut.jtag.boundary_scan_pads['uart_0__rx__pad__i'].keys())
+ print(dut.jtag.boundary_scan_pads['uart_0__tx__pad__o'])
+ # print(type(dut.jtag.boundary_scan_pads['uart_0__rx__pad__i']['rx']))
+ print("jtag pad table keys")
+ print(dut.jtag.resource_table_pads.keys())
+ print(type(dut.jtag.resource_table_pads[('uart', 0)].rx.i))
+ print(dut.jtag.boundary_scan_pads['uart_0__rx__i'])
print("I2C")
- print(top.jtag.boundary_scan_pads['i2c_0__sda__i'])
- print(type(top.jtag.boundary_scan_pads['i2c_0__sda__i']['i']))
-
- print(top.jtag.resource_table_pads)
- print(top.jtag.boundary_scan_pads)
+ print(dut.jtag.boundary_scan_pads['i2c_0__sda__i'])
+ print(type(dut.jtag.boundary_scan_pads['i2c_0__sda__i']['i']))
+ print(dut.jtag.resource_table_pads)
+ print(dut.jtag.boundary_scan_pads)
# 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))
-
- print () # extra print to divide the output
+
+ print() # extra print to divide the output
yield
-if __name__ == '__main__':
+
+def setup_blinker(build_blinker=False):
"""
and to create a Platform instance with that list, and build
something random
p.resources=listofstuff
p.build(Blinker())
"""
+
pinset = dummy_pinset()
print(pinset)
resources = create_resources(pinset)
- top = Blinker(pinset, resources, no_jtag_connect=False)#True)
+ top = Blinker(pinset, resources, no_jtag_connect=False) # True)
vl = rtlil.convert(top, ports=top.ports())
with open("test_jtag_blinker.il", "w") as f:
f.write(vl)
- if False:
+ if build_blinker:
# XXX these modules are all being added *AFTER* the build process links
# everything together. the expectation that this would work is...
# unrealistic. ordering, clearly, is important.
+ # This JTAG code copied from test, probably not needed
# dut = JTAG(test_pinset(), wb_data_wid=64, domain="sync")
top.jtag.stop = False
# rather than the client access the JTAG bus directly
# create an alternative that the client sets
- class Dummy: pass
+
+ class Dummy:
+ pass
cdut = Dummy()
cdut.cbus = JTAGInterface()
top.jtag.s = JTAGServer()
cdut.c = JTAGClient()
top.jtag.s.get_connection()
- #else:
- # print ("running server only as requested,
+ # else:
+ # print ("running server only as requested,
# use openocd remote to test")
# sys.stdout.flush()
# top.jtag.s.get_connection(None) # block waiting for connection
cdut._ir_width = top.jtag._ir_width
cdut.scan_len = top.jtag.scan_len
- p = ASICPlatform (resources, top.jtag)
+ p = ASICPlatform(resources, top.jtag)
p.build(top)
# this is what needs to gets treated as "top", after "main module" top
# is augmented with IO pads with JTAG tacked on. the expectation that
# function is unrealistic.
top_fragment = p.fragment
+ return top
+
+
+def test_jtag():
+ dut = setup_blinker(build_blinker=False)
+
# XXX simulating top (the module that does not itself contain IO pads
# because that's covered by build) cannot possibly be expected to work
# particularly when modules have been added *after* the platform build()
# function has been called.
- sim = Simulator(top)
+ sim = Simulator(dut)
sim.add_clock(1e-6, domain="sync") # standard clock
- #sim.add_sync_process(wrap(jtag_srv(top))) #? jtag server
- #if len(sys.argv) != 2 or sys.argv[1] != 'server':
+ # sim.add_sync_process(wrap(jtag_srv(top))) #? jtag server
+ # if len(sys.argv) != 2 or sys.argv[1] != 'server':
# actual jtag tester
#sim.add_sync_process(wrap(jtag_sim(cdut, top.jtag)))
# handles (pretends to be) DMI
- #sim.add_sync_process(wrap(dmi_sim(top.jtag)))
-
- #sim.add_sync_process(wrap(test_case1()))
- #sim.add_sync_process(wrap(test_case0()))
-
- #sim.add_sync_process(wrap(test_gpios()))
- #sim.add_sync_process(wrap(test_uart()))
- #sim.add_sync_process(wrap(test_i2c()))
- sim.add_sync_process(wrap(test_jtag_bs_chain()))
- #sim.add_sync_process(wrap(test_debug_print()))
+ # sim.add_sync_process(wrap(dmi_sim(top.jtag)))
+
+ # sim.add_sync_process(wrap(test_gpios(top)))
+ # sim.add_sync_process(wrap(test_uart(top)))
+ # sim.add_sync_process(wrap(test_i2c(top)))
+ # sim.add_sync_process(wrap(test_debug_print()))
+
+ sim.add_sync_process(wrap(test_jtag_bs_chain(dut)))
with sim.write_vcd("blinker_test.vcd"):
sim.run()
+
+
+if __name__ == '__main__':
+ test_jtag()
projects / pinmux.git / blobdiff