feat: HDMI-Tool 启动时强制扩展显示拓扑 + 收录波形/注入脚本
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# 0x606E 位交换自动化测试 — 经 RP2040 注入器
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# ============================================================
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# 流程: 读基线 -> 写各交换位并校验 -> 读回确认 -> 收尾还原
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# 注意: LA1010 波形对照按 doc/architecture/rgb_bit_swap_test.md §1.1 手工比对;
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# 本脚本负责寄存器侧的全部操作与校验, 打印每步期望的 LA 现象。
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# 用法: python bitswap_auto.py [COM口]
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# python bitswap_auto.py COM9 full 额外跑 G 通道(0x40)与 R 通道(0x20)
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import serial, sys, time
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PORT = sys.argv[1] if len(sys.argv) > 1 else 'COM9'
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FULL = len(sys.argv) > 2 and sys.argv[2].lower() == 'full'
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BANK, REG = '60', '6E'
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STEPS = [ # (写值, 含义, 写入后 HDMI-Tool 应投的图, LA 预期变化 vs 基线)
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('00', '关闭交换(基准)', 'solid_0000AA / solid_000055',
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'D0:AA=13%/55=84%, D1:AA=72%/55=0.9% (基线)'),
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('80', 'B通道镜像', 'solid_0000AA',
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'与基线互换: D0 应变 ~84%, D1 应变 ~0.9%'),
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]
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if FULL:
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STEPS[1] = ('20', 'R通道镜像(6ch挂D23/D16时测)', 'solid_AA0000',
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'D23/D16 占空比互换')
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STEPS.append(('40', 'G通道镜像(6ch挂D15/D8时测)', 'solid_00AA00',
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'D15/D8 占空比互换'))
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STEPS.append(('80', 'B通道镜像', 'solid_0000AA',
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'D0/D1 与基线互换'))
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def xact(ser, cmd, wait=3.0):
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"""发命令收完整回显(注入含重试可能耗时数秒)"""
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ser.reset_input_buffer()
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ser.write((cmd + '\n').encode())
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lines = []
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t0 = time.time()
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while time.time() - t0 < wait:
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ln = ser.readline().decode('utf-8', 'replace').strip()
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if ln:
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lines.append(ln)
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if ln.startswith('=') and ('读回' in ln or ':' in ln):
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break
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return lines
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def check(lines, expect_val):
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"""从回显提取 读回=XX 并与期望比较"""
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for ln in lines:
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if '读回=' in ln:
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rb = ln.split('读回=')[1].strip()
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ok = rb.upper() == expect_val.upper()
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return ok, rb
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return False, None
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ser = serial.Serial(PORT, timeout=1)
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time.sleep(0.5)
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print('== 0x606E 位交换自动化 == 端口 %s' % PORT)
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print(xact(ser, 's')[0])
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log = []
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fails = 0
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try:
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# 0) 通信预检
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lines = xact(ser, 'r %s %s' % (BANK, REG))
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ok, rb = check(lines, '00')
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print('[预检] 读 0x%s%s -> %s (期望默认 00)' % (BANK, REG, rb))
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if not ok:
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print(' !! 预检值不是 00 —— 若刚做过实验未还原请先还原; 继续执行')
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for val, meaning, img, expect in STEPS:
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print('\n--- 写 %s (%s) ---' % (val, meaning))
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lines = xact(ser, 'w %s %s %s' % (BANK, REG, val), wait=6.0)
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for ln in lines:
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print(' ' + ln)
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ok, rb = check(lines, val)
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if not ok:
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fails += 1
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print(' !! 校验失败(读回 %s != %s), 跳过此步' % (rb, val))
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log.append((val, 'FAIL', rb))
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continue
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log.append((val, 'OK', rb))
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print(' [寄存器侧 OK] 读回=%s' % rb)
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print(' [现在请投] %s' % img)
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print(' [LA 预期] %s' % expect)
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if val != '00':
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input(' >>> 抓完波形按回车继续...')
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# 收尾还原
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print('\n--- 收尾: 写 00 还原 ---')
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lines = xact(ser, 'w %s %s 00' % (BANK, REG), wait=6.0)
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ok, rb = check(lines, '00')
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print(' 读回=%s %s' % (rb, 'OK' if ok else 'FAIL'))
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if not ok:
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fails += 1
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finally:
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ser.close()
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print('\n== 结果汇总 ==')
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for val, st, rb in log:
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print(' 写%s: %s (读回 %s)' % (val, st, rb))
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print('失败步骤: %d' % fails)
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@@ -0,0 +1,117 @@
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# RP2040 注入器嗅探数据 -> I2C 协议解码
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# 用法: python i2c_sniff_decode.py [COM口] [采集ms, 默认700]
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# 帧格式: 固件 'c' 命令回吐 "C <t_us> <val>" 行, val bit0=SDA bit1=SCL
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import serial, sys, time
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PORT = sys.argv[1] if len(sys.argv) > 1 else 'COM9'
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MS = int(sys.argv[2]) if len(sys.argv) > 2 else 700
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KNOWN_REGS = {0x44: 'SYS_STATUS', 0x6E: 'TTL_8B_CFG', 0xFF: 'BANK'}
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s = serial.Serial(PORT, timeout=1)
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time.sleep(0.3)
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s.reset_input_buffer()
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s.write(b's\n')
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time.sleep(0.3)
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print(s.read(200).decode('utf-8', 'replace').strip())
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s.write(('c %d\n' % MS).encode())
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edges = []
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t_deadline = time.time() + MS / 1000 + 60
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while time.time() < t_deadline:
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ln = s.readline().decode('ascii', 'replace').strip()
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if ln == 'C.':
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break
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if ln.startswith('C '):
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try:
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a, b = ln[2:].split()
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edges.append((int(a), int(b)))
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except ValueError:
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pass
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elif ln.startswith('='):
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print(ln)
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s.close()
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print('edges:', len(edges))
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# ---------------- I2C 解码 ----------------
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trans, cur, bits = [], None, []
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psda = pscl = None
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def flush_byte():
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global bits
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if cur is not None and len(bits) == 8:
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cur['bytes'].append(int(''.join(str(x) for x in bits), 2))
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bits = []
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for t, v in edges:
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sda, scl = v & 1, (v >> 1) & 1
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if pscl is not None:
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if scl == 1 and pscl == 1: # SCL 高电平期间 SDA 变化
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if psda == 1 and sda == 0: # START / repeated START
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if cur is not None:
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cur['t1'] = t
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cur['inc'] = bool(bits)
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trans.append(cur)
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cur = {'t0': t, 'bytes': [], 'acks': [], 'inc': False}
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bits = []
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elif psda == 0 and sda == 1: # STOP
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if cur is not None:
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cur['t1'] = t
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cur['inc'] = bool(bits)
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trans.append(cur)
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cur = None
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bits = []
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elif scl == 1 and pscl == 0: # SCL 上升沿采样
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if cur is not None:
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bits.append(sda)
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if len(bits) == 8:
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cur['bytes'].append(int(''.join(str(x) for x in bits), 2))
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bits = []
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elif len(bits) == 9:
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cur['acks'].append(sda) # 0=ACK
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bits = []
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psda, pscl = sda, scl
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if cur is not None:
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cur['t1'] = edges[-1][0] if edges else 0
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cur['inc'] = bool(bits)
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trans.append(cur)
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# ---------------- 打印 ----------------
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bank = None
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print(f'\n解码出 {len(trans)} 个事务:')
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for k, tr in enumerate(trans):
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d = tr['bytes']
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if not d:
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print(' [%2d] t=%dus <空/片段>' % (k, tr['t0']))
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continue
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addr7, rw = d[0] >> 1, 'R' if d[0] & 1 else 'W'
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acks = tr['acks']
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body = d[1:]
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ann = []
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if addr7 == 0x32 and rw == 'W' and body:
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if body[0] == 0xFF and len(body) >= 2:
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bank = body[1]
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ann.append('bank=%02X' % bank)
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body = body[2:]
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if body:
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r = body[0]
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note = KNOWN_REGS.get(r, '')
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if r == 0xFF:
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bank = body[1] if len(body) > 1 else bank
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note = 'bank=%02X' % bank if len(body) > 1 else note
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ann.append(('[%02X%02X] %s' % (bank or 0, r, note)) if note else '[%02X?%02X]' % (bank or 0, r))
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ackstr = ''.join('A' if a == 0 else 'N' for a in acks[1:]) if len(acks) > 1 else ''
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flag = ' <未收尾>' if tr.get('inc') else ''
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print(' [%2d] t=%7dus 0x%02X %s: %-30s ACK:%s%s'
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% (k, tr['t0'], addr7, rw,
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' '.join('%02X' % x for x in d[1:12]) + (' …' if len(d) > 12 else ''),
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ackstr[:16], flag))
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# 轮询周期统计(相邻事务起始间隔的主值)
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if len(trans) > 3:
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gaps = [b['t0'] - a['t0'] for a, b in zip(trans, trans[1:])]
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gaps = [g for g in gaps if 1000 < g < 5000000]
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if gaps:
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gaps.sort()
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print('\n相邻事务间隔(us): 中位=%d 最小=%d 最大=%d'
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% (gaps[len(gaps) // 2], gaps[0], gaps[-1]))
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