def definition(io):
edge_r = rising(io.SCK)
edge_f = falling(io.SCK)
# pixels come 16 bits (high and low byte) at a time
bit_counter = mantle.Counter(4, has_ce=True, has_reset=True)
m.wire(edge_r, bit_counter.CE)
# find when the high and low byte are valid
low = mantle.Decode(15, 4)(bit_counter.O)
high = mantle.Decode(7, 4)(bit_counter.O)
# shift registers to store high and low byte
low_byte = mantle.PIPO(8, has_ce=True)
high_byte = mantle.PIPO(8, has_ce=True)
low_byte(0, io.DATA, low)
high_byte(0, io.DATA, high)
m.wire(low, low_byte.CE)
m.wire(high, high_byte.CE)
# assemble the 16-bit RGB565 value
px_bits = (m.uint(mantle.LSL(16)((m.uint(m.concat(high_byte.O, zeros))), m.bits(8, 4)))
+ m.uint(m.concat(low_byte.O, zeros)))
# extract the values for each color
r_val = m.uint(mantle.LSR(16)((px_bits & RMASK), m.bits(11, 4)))
g_val = m.uint(mantle.LSR(16)((px_bits & GMASK), m.bits(5, 4)))
b_val = m.uint(px_bits & BMASK)
# sum them to get grayscale (0 to 125)
px_val = (r_val + g_val + b_val)
# --------------------------UART OUTPUT---------------------------- #
# run 16-bit UART at 2x speed
baud = edge_r | edge_f
# reset at start of pixel transfer
ff1 = mantle.FF(has_ce=True)
m.wire(baud, ff1.CE)
u_reset = mantle.LUT2(I0 & ~I1)(io.VALID, ff1(io.VALID))
m.wire(u_reset, bit_counter.RESET)
# generate load signal
ff2 = mantle.FF(has_ce=True)
m.wire(baud, ff2.CE)
load = mantle.LUT3(I0 & I1 & ~I2)(io.VALID, high, ff2(high))
uart = UART(16)
uart(CLK=io.CLK, BAUD=baud, DATA=px_val, LOAD=load)
m.wire(px_val, io.PXV)
m.wire(uart, io.UART)
m.wire(load, io.LOAD)
def definition(io):
load = io.LOAD
baud = rising(io.SCK) | falling(io.SCK)
valid_counter = mantle.CounterModM(buf_size, 12, has_ce=True)
m.wire(load & baud, valid_counter.CE)
valid_list = [wi * (b - 1) + i * a - 1
for i in range(1, wo + 1)] # len = 32
valid = m.GND
for i in valid_list:
valid = valid | mantle.Decode(i, 12)(valid_counter.O)
# register on input
st_in = mantle.Register(width, has_ce=True)
st_in(io.DATA)
m.wire(load, st_in.CE)
# --------------------------DOWNSCALING----------------------------- #
# downscale the image from 352x288 to 32x32
Downscale = m.DeclareCircuit(
'Downscale', "I_0_0",
m.In(m.Array(1, m.Array(1, m.Array(width, m.Bit)))), "WE",
m.In(m.Bit), "CLK", m.In(m.Clock), "O",
m.Out(m.Array(width, m.Bit)), "V", m.Out(m.Bit))
dscale = Downscale()
m.wire(st_in.O, dscale.I_0_0[0][0])
m.wire(1, dscale.WE)
m.wire(load, dscale.CLK)
add16 = mantle.Add(width) # needed for Add16 definition
# threshold the downscale output
px_bit = mantle.ULE(16)(dscale.O, m.uint(THRESH, 16)) & valid
# ---------------------------UART OUTPUT----------------------------- #
m.wire(px_bit, io.O)
m.wire(valid, io.VALID)
icestick = IceStick()
icestick.Clock.on()
for i in range(3):
icestick.J3[i].output().on()
main = icestick.main()
# baud for uart output
clock = mantle.CounterModM(103, 8)
baud = clock.COUT
bit_counter = mantle.Counter(5, has_ce=True)
m.wire(baud, bit_counter.CE)
load = mantle.Decode(0, 5)(bit_counter.O)
# # "test" data
# init = [m.uint(i, 16) for i in range(16)]
# printf = mantle.Counter(4, has_ce=True)
# rom = ROM16(4, init, printf.O)
# m.wire(load & baud, printf.CE)
#---------------------------STENCILING-----------------------------#
ReduceHybrid = m.DeclareCircuit('ReduceHybrid', 'I_0', m.In(m.Array(a, TIN)),
'I_1', m.In(m.Array(a, TIN)), 'O', TOUT,
'WE', m.BitIn, 'V', m.Out(m.Bit), 'CLK',
m.In(m.Clock))
redHybrid = ReduceHybrid()
def definition(io):
load = io.LOAD
baud = rising(io.SCK) | falling(io.SCK)
valid_counter = mantle.CounterModM(buf_size, 12, has_ce=True)
m.wire(load & baud, valid_counter.CE)
valid_list = [wi * (b - 1) + i * a - 1 for i in range(1, wo + 1)] # len = 32
valid = m.GND
for i in valid_list:
valid = valid | mantle.Decode(i, 12)(valid_counter.O)
# register on input
st_in = mantle.Register(width, has_ce=True)
st_in(io.DATA)
m.wire(load, st_in.CE)
# --------------------------DOWNSCALING----------------------------- #
# downscale the image from 352x288 to 32x32
Downscale = m.DeclareCircuit(
'Downscale',
"I_0_0", m.In(m.Array(1, m.Array(1, m.Array(width, m.Bit)))),
"WE", m.In(m.Bit), "CLK", m.In(m.Clock),
"O", m.Out(m.Array(width, m.Bit)), "V", m.Out(m.Bit))
dscale = Downscale()
m.wire(st_in.O, dscale.I_0_0[0][0])
m.wire(1, dscale.WE)
m.wire(load, dscale.CLK)
add16 = mantle.Add(width) # needed for Add16 definition
# --------------------------FILL IMG RAM--------------------------- #
# each valid output of dscale represents an entry of 32x32 binary image
# accumulate each group of 32 entries into a 32-bit value representing a row
col = mantle.CounterModM(32, 6, has_ce=True)
col_ce = rising(valid)
m.wire(col_ce, col.CE)
# shift each bit in one at a time until we get an entire row
px_bit = mantle.ULE(16)(dscale.O, m.uint(THRESH, 16)) & valid
row_reg = mantle.SIPO(32, has_ce=True)
row_reg(px_bit)
m.wire(col_ce, row_reg.CE)
# reverse the row bits since the image is flipped
row = reverse(row_reg.O)
rowaddr = mantle.Counter(6, has_ce=True)
img_full = mantle.SRFF(has_ce=True)
img_full(mantle.EQ(6)(rowaddr.O, m.bits(32, 6)), 0)
m.wire(falling(col.COUT), img_full.CE)
row_ce = rising(col.COUT) & ~img_full.O
m.wire(row_ce, rowaddr.CE)
waddr = rowaddr.O[:5]
rdy = col.COUT & ~img_full.O
pulse_count = mantle.Counter(2, has_ce=True)
we = mantle.UGE(2)(pulse_count.O, m.uint(1, 2))
pulse_count(CE=(we|rdy))
# ---------------------------UART OUTPUT----------------------------- #
row_load = row_ce
row_baud = mantle.FF()(baud)
uart_row = UART(32)
uart_row(CLK=io.CLK, BAUD=row_baud, DATA=row, LOAD=row_load)
uart_addr = UART(5)
uart_addr(CLK=io.CLK, BAUD=row_baud, DATA=waddr, LOAD=row_load)
m.wire(waddr, io.WADDR)
m.wire(img_full, io.DONE) #img_full
m.wire(uart_row, io.UART) #uart_st
m.wire(row, io.O)
m.wire(we, io.VALID)
m.wire(valid, io.T0)
m.wire(uart_addr, io.T1)
main = hx8kboard.main()
# "test" data
init = [m.uint(i, 16) for i in range(16)]
printf = mantle.Counter(4, has_ce=True)
rom = ROM16(4, init, printf.O)
# baud for uart output
clock = mantle.CounterModM(103, 8)
baud = clock.COUT
bit_counter = mantle.Counter(5, has_ce=True)
m.wire(baud, bit_counter.CE)
load = mantle.Decode(0, 5)(bit_counter.O)
valid_counter = mantle.CounterModM(buf_size, 13, has_ce=True)
m.wire(load & baud, valid_counter.CE)
valid_list = [wi * (b - 1) + i * a - 1 for i in range(1, wo + 1)] # len = 16
valid = m.GND
for i in valid_list:
valid = valid | mantle.Decode(i, 13)(valid_counter.O)
m.wire(load & baud, printf.CE)
px_val = rom.O
# "test" data init = [m.uint(i, 16) for i in range(16)] printf = mantle.Counter(4, has_ce=True) rom = ROM16(4, init, printf.O) clk_counter = mantle.Counter(5) sclk = clk_counter.O[4] edge_r = rising(sclk) edge_f = falling(sclk) baud = edge_r | edge_f bit_counter = mantle.Counter(4, has_ce=True, has_reset=True) m.wire(edge_r, bit_counter.CE) high = mantle.Decode(7, 4)(bit_counter.O) ff2 = mantle.FF(has_ce=True) m.wire(baud, ff2.CE) load = high & ~ff2(high) m.wire(load & baud, printf.CE) rescale = Rescale() # inputs m.wire(main.CLKIN, rescale.CLK) m.wire(rom.O, rescale.DATA) m.wire(sclk, rescale.SCK) m.wire(load, rescale.LOAD)
def definition(cam):
edge_f = falling(cam.SCK)
edge_r = rising(cam.SCK)
# ROM to store commands
rom_index = mantle.Counter(4, has_ce=True)
rom = ROM16(4, init, rom_index.O)
# Message length is 16 bits, setup counter to generate done signal
# after EOM
done_counter = mantle.Counter(5, has_ce=True, has_reset=True)
count = done_counter.O
done = mantle.Decode(16, 5)(count)
# State machine to generate run signal (enable)
run = mantle.DFF(has_ce=True)
run_n = mantle.LUT3([0, 0, 1, 0, 1, 0, 1, 0])
run_n(done, trigger, run)
run(run_n)
m.wire(edge_f, run.CE)
# Reset the message length counter after done
run_reset = mantle.LUT2(I0 | ~I1)(done, run)
done_counter(CE=edge_r, RESET=run_reset)
# State variables for high-level state machine
ready = mantle.LUT2(~I0 & I1)(run, edge_f)
start = mantle.ULE(4)(rom_index.O, m.uint(3, 4))
burst = mantle.UGE(4)(rom_index.O, m.uint(9, 4))
# Shift register to store 16-bit command|data to send
mosi = mantle.PISO(16, has_ce=True)
# SPI enable is negative of load-don't load and shift out data at the
# same time
enable = mantle.LUT3(I0 & ~I1 & ~I2)(trigger, run, burst)
mosi(~burst, rom.O, enable)
m.wire(edge_f, mosi.CE)
# Shit register to read in 8-bit data
miso = mantle.SIPO(8, has_ce=True)
miso(cam.MISO)
valid = mantle.LUT2(~I0 & I1)(enable, edge_r)
m.wire(valid, miso.CE)
# Capture done state variable
cap_done = mantle.SRFF(has_ce=True)
cap_done(mantle.EQ(8)(miso.O, m.bits(0x08, 8)), 0)
m.wire(enable & edge_r, cap_done.CE)
# Use state variables to determine what commands are sent (how)
increment = mantle.LUT4(I0 & (I1 | I2) & ~I3)(
ready, start, cap_done, burst)
m.wire(increment, rom_index.CE)
# wire outputs
m.wire(enable, cam.EN)
m.wire(mosi.O, cam.MOSI)
m.wire(miso.O, cam.DATA)
m.wire(burst, cam.VALID)
# --------------------------UART OUTPUT---------------------------- #
# run UART at 2x SPI rate to allow it to keep up
baud = edge_r | edge_f
# reset when SPI burst read (image transfer) begins
ff = mantle.FF(has_ce=True)
m.wire(edge_r, ff.CE)
u_reset = mantle.LUT2(I0 & ~I1)(burst, ff(burst))
# UART data out every 8 bits
u_counter = mantle.CounterModM(8, 3, has_ce=True, has_reset=True)
u_counter(CE=edge_r, RESET=u_reset)
load = burst & rising(u_counter.COUT)
uart = UART(8)
uart(CLK=cam.CLK, BAUD=baud, DATA=miso, LOAD=load)
# wire output
m.wire(uart, cam.UART)
# generate signal for when transfer is done
data_count = mantle.Counter(18, has_ce=True)
tx_done = mantle.SRFF(has_ce=True)
# transfer has size 153600 bytes, first 2 bytes are ignored
tx_done(mantle.EQ(18)(data_count.O, m.bits(153602, 18)), 0)
m.wire(load, tx_done.CE)
m.wire(load, data_count.CE)
# wire output
m.wire(tx_done, cam.DONE)
valid = 1
init = [m.array(int2seq(ord(c), 8)) for c in 'hello, world \r\n']
printf = mantle.Counter(4, has_ce=True)
rom = ROM(4, init, printf.O)
data = m.array([rom.O[7], rom.O[6], rom.O[5], rom.O[4],
rom.O[3], rom.O[2], rom.O[1], rom.O[0], 0])
counter = mantle.CounterModM(103, 8)
baud = counter.COUT
count = mantle.Counter(4, has_ce=True, has_reset=True)
decode = mantle.Decode(15, 4)
done = decode(count.O)
run = mantle.DFF(has_ce=True)
run_n = mantle.LUT3([0,0,1,0, 1,0,1,0])
run_n(done, valid, run.O)
run(run_n, ce=baud)
reset = mantle.LUT2(mantle.I0&~mantle.I1)(done, run)
count(CE=baud, RESET=reset)
shift = mantle.PISO(9, has_ce=True)
load = mantle.LUT2(mantle.I0&~mantle.I1)(valid,run)
shift(1,data,load)
m.wire(baud, shift.CE)
def definition(io):
load = io.LOAD
baud = io.BAUD
valid_counter = mantle.CounterModM(buf_size, 13, has_ce=True)
m.wire(load & baud, valid_counter.CE)
valid_list = [wi * (b - 1) + i * a - 1 for i in range(1, wo + 1)]
valid = m.GND
for i in valid_list:
valid = valid | mantle.Decode(i, 13)(valid_counter.O)
# register on input
st_in = mantle.Register(16, has_ce=True)
st_in(io.DATA)
m.wire(load, st_in.CE)
# --------------------------DOWNSCALING----------------------------- #
# downscale the image from 320x240 to 16x16
Downscale = m.DeclareCircuit(
'Downscale',
"I_0_0", m.In(m.Array(1, m.Array(1, m.Array(16, m.Bit)))),
"WE", m.In(m.Bit), "CLK", m.In(m.Clock),
"O", m.Out(m.Array(16, m.Bit)), "V", m.Out(m.Bit))
dscale = Downscale()
m.wire(st_in.O, dscale.I_0_0[0][0])
m.wire(1, dscale.WE)
m.wire(load, dscale.CLK)
add16 = mantle.Add(16) # needed for Add16 definition
# --------------------------FILL IMG RAM--------------------------- #
# each valid output of dscale represents an entry of 16x16 binary image
# accumulate each group of 16 entries into a 16-bit value representing
# a row of the image
col = mantle.Counter(4, has_ce=True)
row_full = mantle.SRFF(has_ce=True)
row_full(mantle.EQ(4)(col.O, m.bits(15, 4)), 0)
m.wire(falling(dscale.V), row_full.CE)
col_ce = rising(dscale.V) & ~row_full.O
m.wire(col_ce, col.CE)
row = mantle.Counter(4, has_ce=True)
img_full = mantle.SRFF(has_ce=True)
img_full(mantle.EQ(4)(row.O, m.bits(15, 4)), 0)
m.wire(falling(col.COUT), img_full.CE)
row_ce = rising(col.COUT) & ~img_full.O
m.wire(row_ce, row.CE)
# ---------------------------UART OUTPUT----------------------------- #
uart_st = UART(16)
uart_st(CLK=io.CLK, BAUD=baud, DATA=dscale.O, LOAD=load)
m.wire(row.O, io.ROW)
m.wire(img_full.O, io.DONE)
m.wire(uart_st.O, io.UART)
def definition(io):
load = io.LOAD
baud = rising(io.SCK) | falling(io.SCK)
valid_counter = mantle.CounterModM(buf_size, 13, has_ce=True)
m.wire(load & baud, valid_counter.CE)
valid_list = [wi * (b - 1) + i * a - 1 for i in range(1, wo + 1)]
valid = m.GND
for i in valid_list:
valid = valid | mantle.Decode(i, 13)(valid_counter.O)
# register on input
st_in = mantle.Register(16, has_ce=True)
st_in(io.DATA)
m.wire(load, st_in.CE)
# --------------------------DOWNSCALING----------------------------- #
# downscale the image from 320x240 to 16x16
Downscale = m.DeclareCircuit(
'Downscale',
"I_0_0", m.In(m.Array(1, m.Array(1, m.Array(16, m.Bit)))),
"WE", m.In(m.Bit), "CLK", m.In(m.Clock),
"O", m.Out(m.Array(16, m.Bit)), "V", m.Out(m.Bit))
dscale = Downscale()
m.wire(st_in.O, dscale.I_0_0[0][0])
m.wire(1, dscale.WE)
m.wire(load, dscale.CLK)
add16 = mantle.Add(16) # needed for Add16 definition
# --------------------------FILL IMG RAM--------------------------- #
# each valid output of dscale represents a pixel in 16x16 binary image
# accumulate each group of 16 pixels into a 16-bit value representing
# a row in the image
col = mantle.CounterModM(16, 5, has_ce=True)
col_ce = rising(valid)
m.wire(col_ce, col.CE)
# shift each bit in one at a time until we get an entire row
px_bit = mantle.ULE(16)(dscale.O, m.uint(THRESH, 16)) & valid
row_reg = mantle.SIPO(16, has_ce=True)
row_reg(px_bit)
m.wire(col_ce, row_reg.CE)
# reverse the row bits since the image is flipped
row = reverse(row_reg.O)
rowaddr = mantle.Counter(5, has_ce=True)
img_full = mantle.SRFF(has_ce=True)
img_full(mantle.EQ(5)(rowaddr.O, m.bits(16, 5)), 0)
m.wire(falling(col.COUT), img_full.CE)
row_ce = rising(col.COUT) & ~img_full.O
m.wire(row_ce, rowaddr.CE)
waddr = rowaddr.O[:4]
# we_counter = mantle.CounterModM(16, 5, has_ce=True)
# m.wire(rising(valid), we_counter.CE)
rdy = col.COUT & ~img_full.O
pulse_count = mantle.Counter(5, has_ce=True)
we = mantle.UGE(5)(pulse_count.O, m.uint(1, 5))
pulse_count(CE=(we | rdy))
# ---------------------------UART OUTPUT----------------------------- #
row_load = row_ce
row_baud = mantle.FF()(baud)
uart_row = UART(16)
uart_row(CLK=io.CLK, BAUD=row_baud, DATA=row, LOAD=row_load)
uart_addr = UART(4)
uart_addr(CLK=io.CLK, BAUD=row_baud, DATA=waddr, LOAD=row_load)
# split 16-bit row data into 8-bit packets so it can be parsed
low_byte = row & LOW_MASK
high_byte = row & HIGH_MASK
uart_counter = mantle.CounterModM(8, 4, has_ce=True)
m.wire(rising(valid), uart_counter.CE)
m.wire(waddr, io.WADDR)
m.wire(img_full, io.DONE)
m.wire(uart_row, io.UART)
m.wire(row, io.O)
m.wire(we, io.VALID)
def Test(n):
return mantle.Decode(0, n)
from loam.boards.icestick import IceStick
icestick = IceStick()
icestick.Clock.on()
for i in range(8):
icestick.J3[i].output().on()
main = icestick.main()
valid = 1
counter = mantle.CounterModM(103, 8)
baud = counter.COUT
count = mantle.Counter(4, has_ce=True, has_reset=True)
done = mantle.Decode(15, 4)(count.O)
run = mantle.DFF(has_ce=True)
run_n = mantle.LUT3([0, 0, 1, 0, 1, 0, 1, 0])
run_n(done, valid, run.O)
run(run_n, ce=baud)
reset = mantle.LUT2(mantle.I0 & ~mantle.I1)(done, run)
count(ce=baud, reset=reset)
m.wire(main.CLKIN, main.J3[0])
m.wire(baud, main.J3[1])
m.wire(run, main.J3[2])
m.wire(done, main.J3[3])
m.wire(count.O, main.J3[4:8])
