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| 1 | +from __future__ import absolute_import |
| 2 | +from __future__ import print_function |
| 3 | +import sys |
| 4 | +import os |
| 5 | + |
| 6 | +# the next line can be removed after installation |
| 7 | +sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.dirname( |
| 8 | + os.path.dirname(os.path.dirname(os.path.abspath(__file__))))))) |
| 9 | + |
| 10 | +from veriloggen import * |
| 11 | +import veriloggen.thread as vthread |
| 12 | +import veriloggen.types.axi as axi |
| 13 | + |
| 14 | + |
| 15 | +def mkLed(): |
| 16 | + m = Module('blinkled') |
| 17 | + clk = m.Input('CLK') |
| 18 | + rst = m.Input('RST') |
| 19 | + |
| 20 | + datawidth = 32 |
| 21 | + addrwidth = 10 |
| 22 | + |
| 23 | + # With async DMA, set enable_async = True |
| 24 | + myaxi = vthread.AXIM(m, 'myaxi', clk, rst, datawidth, enable_async=True) |
| 25 | + # If RAM is simultaneously accesseed with DMA, numports must be 2 or more. |
| 26 | + myram = vthread.RAM(m, 'myram', clk, rst, datawidth, addrwidth, numports=2) |
| 27 | + |
| 28 | + saxi = vthread.AXISLiteRegister(m, 'saxi', clk, rst, datawidth) |
| 29 | + |
| 30 | + all_ok = m.TmpReg(initval=0) |
| 31 | + |
| 32 | + def blink(size): |
| 33 | + # wait start |
| 34 | + saxi.wait_flag(0, value=1, resetvalue=0) |
| 35 | + # reset done |
| 36 | + saxi.write(1, 0) |
| 37 | + |
| 38 | + all_ok.value = True |
| 39 | + |
| 40 | + for i in range(4): |
| 41 | + print('# iter %d start' % i) |
| 42 | + # Test for 4KB boundary check |
| 43 | + offset = i * 1024 * 16 + (myaxi.boundary_size - 4) |
| 44 | + body(size, offset) |
| 45 | + print('# iter %d end' % i) |
| 46 | + |
| 47 | + if all_ok: |
| 48 | + print('# verify (local): PASSED') |
| 49 | + else: |
| 50 | + print('# verify (local): FAILED') |
| 51 | + |
| 52 | + # result |
| 53 | + saxi.write(2, all_ok) |
| 54 | + |
| 55 | + # done |
| 56 | + saxi.write_flag(1, 1, resetvalue=0) |
| 57 | + |
| 58 | + def body(size, offset): |
| 59 | + # write |
| 60 | + for i in range(size): |
| 61 | + wdata = i + 100 |
| 62 | + myram.write(i, wdata) |
| 63 | + |
| 64 | + w_laddr = 0 |
| 65 | + w_gaddr = offset |
| 66 | + # If RAM is simultaneously accesseed with DMA, different port must be |
| 67 | + # used. |
| 68 | + myaxi.dma_write_async(myram, w_laddr, w_gaddr, size, port=1) |
| 69 | + print('dma_write_async: [%d] -> [%d]' % (w_laddr, w_gaddr)) |
| 70 | + |
| 71 | + # write |
| 72 | + for i in range(size): |
| 73 | + wdata = i + 1000 |
| 74 | + myram.write(i + size, wdata) |
| 75 | + |
| 76 | + myaxi.dma_wait_write() |
| 77 | + print('dma_wait_write : [%d] -> [%d]' % (w_laddr, w_gaddr)) |
| 78 | + |
| 79 | + w_laddr = size |
| 80 | + w_gaddr = (size + size) * 4 + offset |
| 81 | + myaxi.dma_write_async(myram, w_laddr, w_gaddr, size, port=1) |
| 82 | + print('dma_write_async: [%d] -> [%d]' % (w_laddr, w_gaddr)) |
| 83 | + |
| 84 | + # read |
| 85 | + r_laddr = 0 |
| 86 | + r_gaddr = offset |
| 87 | + myaxi.dma_read_async(myram, r_laddr, r_gaddr, size, port=0) |
| 88 | + print('dma_read_async : [%d] <- [%d]' % (r_laddr, r_gaddr)) |
| 89 | + |
| 90 | + for sleep in range(size): |
| 91 | + pass |
| 92 | + |
| 93 | + myaxi.dma_wait_write() |
| 94 | + print('dma_wait_write : [%d] -> [%d]' % (w_laddr, w_gaddr)) |
| 95 | + |
| 96 | + myaxi.dma_wait_read() |
| 97 | + print('dma_wait_read : [%d] <- [%d]' % (r_laddr, r_gaddr)) |
| 98 | + |
| 99 | + for i in range(size): |
| 100 | + rdata = myram.read(i) |
| 101 | + if vthread.verilog.NotEql(rdata, i + 100): |
| 102 | + print('rdata[%d] = %d' % (i, rdata)) |
| 103 | + all_ok.value = False |
| 104 | + |
| 105 | + # read |
| 106 | + r_laddr = 0 |
| 107 | + r_gaddr = (size + size) * 4 + offset |
| 108 | + myaxi.dma_read(myram, r_laddr, r_gaddr, size, port=0) |
| 109 | + print('dma_read : [%d] <- [%d]' % (r_laddr, r_gaddr)) |
| 110 | + |
| 111 | + for sleep in range(size): |
| 112 | + pass |
| 113 | + |
| 114 | + for i in range(size): |
| 115 | + rdata = myram.read(i) |
| 116 | + if vthread.verilog.NotEql(rdata, i + 1000): |
| 117 | + print('rdata[%d] = %d' % (i, rdata)) |
| 118 | + all_ok.value = False |
| 119 | + |
| 120 | + th = vthread.Thread(m, 'th_blink', clk, rst, blink) |
| 121 | + fsm = th.start(32) |
| 122 | + |
| 123 | + return m |
| 124 | + |
| 125 | + |
| 126 | +def mkTest(memimg_name=None): |
| 127 | + m = Module('test') |
| 128 | + |
| 129 | + # target instance |
| 130 | + led = mkLed() |
| 131 | + |
| 132 | + # copy paras and ports |
| 133 | + params = m.copy_params(led) |
| 134 | + ports = m.copy_sim_ports(led) |
| 135 | + |
| 136 | + clk = ports['CLK'] |
| 137 | + rst = ports['RST'] |
| 138 | + |
| 139 | + memory = axi.AxiMultiportMemoryModel(m, 'memory', clk, rst, numports=2, |
| 140 | + memimg_name=memimg_name) |
| 141 | + |
| 142 | + r_ports, w_ports = axi.split_read_write(m, ports, 'myaxi') |
| 143 | + |
| 144 | + memory.connect(0, r_ports, 'r_myaxi') |
| 145 | + memory.connect(1, w_ports, 'w_myaxi') |
| 146 | + |
| 147 | + # AXI-Slave controller |
| 148 | + _saxi = vthread.AXIMLite(m, '_saxi', clk, rst, noio=True) |
| 149 | + _saxi.connect(ports, 'saxi') |
| 150 | + |
| 151 | + def ctrl(): |
| 152 | + for i in range(100): |
| 153 | + pass |
| 154 | + |
| 155 | + for i in range(16): |
| 156 | + # byte addressing |
| 157 | + v = memory.read(i * 4) |
| 158 | + print('read: mem[%d] -> %x' % (i, v)) |
| 159 | + v = v + 1024 |
| 160 | + # byte addressing |
| 161 | + memory.write(i * 4, v) |
| 162 | + print('write: mem[%d] <- %x' % (i, v)) |
| 163 | + |
| 164 | + awaddr = 0 |
| 165 | + _saxi.write(awaddr, 1) |
| 166 | + |
| 167 | + araddr = 4 |
| 168 | + v = _saxi.read(araddr) |
| 169 | + while v == 0: |
| 170 | + v = _saxi.read(araddr) |
| 171 | + |
| 172 | + araddr = 8 |
| 173 | + v = _saxi.read(araddr) |
| 174 | + if v: |
| 175 | + print('# verify: PASSED') |
| 176 | + else: |
| 177 | + print('# verify: FAILED') |
| 178 | + |
| 179 | + th = vthread.Thread(m, 'th_ctrl', clk, rst, ctrl) |
| 180 | + fsm = th.start() |
| 181 | + |
| 182 | + uut = m.Instance(led, 'uut', |
| 183 | + params=m.connect_params(led), |
| 184 | + ports=m.connect_ports(led)) |
| 185 | + |
| 186 | + # simulation.setup_waveform(m, uut) |
| 187 | + simulation.setup_clock(m, clk, hperiod=5) |
| 188 | + init = simulation.setup_reset(m, rst, m.make_reset(), period=100) |
| 189 | + |
| 190 | + init.add( |
| 191 | + Delay(1000000), |
| 192 | + Systask('finish'), |
| 193 | + ) |
| 194 | + |
| 195 | + return m |
| 196 | + |
| 197 | + |
| 198 | +def run(filename='tmp.v', simtype='iverilog', outputfile=None): |
| 199 | + |
| 200 | + if outputfile is None: |
| 201 | + outputfile = os.path.splitext(os.path.basename(__file__))[0] + '.out' |
| 202 | + |
| 203 | + memimg_name = 'memimg_' + outputfile |
| 204 | + |
| 205 | + test = mkTest(memimg_name=memimg_name) |
| 206 | + |
| 207 | + if filename is not None: |
| 208 | + test.to_verilog(filename) |
| 209 | + |
| 210 | + sim = simulation.Simulator(test, sim=simtype) |
| 211 | + rslt = sim.run(outputfile=outputfile) |
| 212 | + lines = rslt.splitlines() |
| 213 | + if simtype == 'verilator' and lines[-1].startswith('-'): |
| 214 | + rslt = '\n'.join(lines[:-1]) |
| 215 | + return rslt |
| 216 | + |
| 217 | + |
| 218 | +if __name__ == '__main__': |
| 219 | + rslt = run(filename='tmp.v') |
| 220 | + print(rslt) |
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