def build_i2c_reader(fmc_bus):
s = i2c_assem()
a = []
a += s.set_resx(0) # avoid any confusion
a += s.hw_config(fmc_bus)
for mcp23017 in [0x4E, 0x48, 0x44, 0x4C, 0x42]: # skip 0x4A
a += s.write(mcp23017, 0x00, [0xff, 0xff]) # IODIR = input
a += s.read(mcp23017, 0x12, 2) # read pin values
a += s.buffer_flip()
a += [0] # finish
return a
def ram_test_prog():
sadr = 0x20
s = assem.i2c_assem()
a = []
a += s.pause(2) # ignored?
a += s.hw_config(0)
a += s.trig_analyz()
a += s.write(sadr, 1, [0xa5, 0x5a])
a += s.pause(4)
a += s.read(sadr, 2, 1)
a += s.read(sadr, 1, 2)
a += s.jump(1)
a += s.pad(1, len(a))
a += s.set_resx(1)
a += s.read(sadr, 1, 1)
a += s.buffer_flip()
a += s.pause(34)
a += s.jump(1)
return a
def hw_test_prog():
s = assem.i2c_assem()
a = []
a += s.pause(2) # ignored?
a += s.set_resx(3) # avoid any confusion
a += s.hw_config(1) # turn on reset
a += s.pause(2)
a += s.hw_config(0) # turn off reset
a += s.pause(2)
a += busmux_sel(s, 6) # App bus
a += s.read(0xe0, 0, 1, addr_bytes=0)
a += s.read(0x80, 0, 2) # U17 config
a += s.read(0x82, 0, 2) # U17 config
a += s.write(0x42, 6, [0xff, 0xf3]) # Configuration registers
a += s.jump(1)
a += s.pad(1, len(a))
#
# Toggle LEDs at 2.5 Hz
a += s.trig_analyz()
a += s.set_resx(0)
a += s.write(0x42, 2, [0, 4]) # Output registers
a += s.pause(2)
a += s.read(0x42, 0, 2) # Physical pin logic levels
a += s.read(0x44, 0, 2) # Physical pin logic levels
# INA219 U17 FMC1 address 0x80
a += s.read(0x80, 1, 2) # shunt voltage
a += s.read(0x80, 2, 2) # bus voltage
# INA219 U32 FMC2 address 0x82
a += s.read(0x82, 1, 2) # shunt voltage
a += s.read(0x82, 2, 2) # bus voltage
a += s.pause(6944) # 13888
a += s.write(0x42, 2, [0, 8]) # Output registers
a += s.pause(2)
a += s.read(0x42, 0, 2) # Physical pin logic levels
a += s.buffer_flip()
a += s.pause(6944)
a += s.jump(1)
return a
def hw_test_prog():
s = assem.i2c_assem()
ina_list = [0x80, 0x82, 0x84] # U17, U32, unplaced
# SFP1 is closest to edge of board
# SFP4 is closest to center of board
sfp_list = [2, 5, 4, 3] # SFP modules 1-4
fmc_list = [0, 1]
a = []
a += s.pause(2) # ignored?
a += s.set_resx(3) # avoid any confusion
a += busmux_reset(s)
#
a += busmux_sel(s, 6) # App bus
a += s.read(0xe0, 0, 1, addr_bytes=0) # busmux readback
a += s.write(0x42, 6, [0xff, 0xf3]) # U39 Configuration registers
# pull down all four TX_DIS pins
a += s.write(0x44, 6, [0xdd, 0xdd]) # U34 Configuration registers
a += s.write(0x44, 2, [0x00, 0x00]) # U34 Output registers
for ax in ina_list:
a += s.read(ax, 0, 2) # config
for sfp_port in sfp_list:
a += sfp_init(s, sfp_port)
a += s.trig_analyz()
for fmc_port in fmc_list:
a += busmux_sel(s, fmc_port)
a += s.pause(10)
a += s.read(0xe0, 0, 1, addr_bytes=0) # busmux readback
# += s.read(0xa0, 0, 27, addr_bytes=2) # AT24C32D on Zest
# attempt to power-down the ADN4600 on the FMC Carrier Tester
# cuts total current at 10.5V from 0.58A to 0.43A, 1.6W reduction
# (can't see it on the 12V current, since IC7 is powered from P3V3)
for xppr in [0xE3, 0xEB, 0xF3, 0xFB, 0xDB, 0xD3, 0xCB, 0xC3]:
a += s.write(0x90, xppr, [0])
#
jump_n = 9
a += s.jump(jump_n)
a += s.pad(jump_n, len(a))
#
# Start of polling loop
a += s.set_resx(0)
a += busmux_sel(s, 6) # App bus
a += s.write(0x42, 2, [0, 4]) # Output registers
a += s.pause(2)
a += s.read(0x42, 0, 2) # Physical pin logic levels
a += s.read(0x44, 0, 2) # Physical pin logic levels
for ax in ina_list:
a += s.read(ax, 1, 2) # shunt voltage
a += s.read(ax, 2, 2) # bus voltage
#
for sfp_port in sfp_list:
a += sfp_poll(s, sfp_port)
# FMC carrier tester card possible on FMC1 and FMC2
# Set of six MCP23017 on application I2C bus (LA_02_P and LA_02_N)
for cfg in [2, 4]:
a += s.hw_config(cfg)
for mcp23017 in [0x4E, 0x48, 0x44, 0x4C, 0x42]: # skip 0x4A
a += s.read(mcp23017, 0x12, 2) # read pin values
a += s.hw_config(0)
for fmc_port in fmc_list:
a += busmux_sel(s, fmc_port)
# AD7997 on standard I2C bus
# ch6: P3V3, ch7: P12V, ch8: Vadj
for chan_7797 in [6, 7, 8]:
apb_7797 = (chan_7797 + 7) << 4
a += s.read(0x46, apb_7797,
2) # convert and read specified channel
a += s.buffer_flip() # Flip right away, so most info is minimally stale
# This does mean that the second readout of the PCA9555 will be extra-stale
# or even (on the first trip through) invalid.
a += s.pause(3470)
#
a += busmux_sel(s, 6) # App bus
a += s.write(0x42, 2, [0, 8]) # Output registers
a += s.pause(2)
a += s.read(0x42, 0, 2) # Physical pin logic levels
a += s.pause(3470)
if False: # extra weird little flicker
a += s.write(0x42, 2, [0, 4]) # Output registers
a += s.pause(1056)
a += s.write(0x42, 2, [0, 8]) # Output registers
a += s.pause(1056)
a += s.jump(jump_n)
return a