FaSTTUBe/charger-display
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Parse new logging format

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This commit is contained in:
jazzpi 2022-08-10 13:14:43 +02:00
parent 61f652ee8f
commit a3f3b2c23e
1 changed files with 52 additions and 18 deletions
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70
charger-display.py
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@ -33,8 +33,8 @@ LOG_FRAME_LENGTH = 8 # bytes
PARALLEL_CELLS = 9
CELLS_PER_SLAVE = 10
TEMP_SENSORS_PER_SLAVE = 32
VOLTAGE_CONV = 5.0 / 255 # volts/quantum
TEMP_CONV = 0.0625 * 16 # °C/quantum
VOLTAGE_CONV = 5.0 / 0xFFFF # volts/quantum
TEMP_CONV = 0.0625 # °C/quantum
ERRORCODE_TIMEOUT_SLAVE = 1
ERRORCODE_SLAVE_PANIC = 2
@ -53,6 +53,8 @@ MASTER_THRESH_OT = 1
MASTER_THRESH_UV = 2
MASTER_THRESH_OV = 3
TS_ERROR = 4
class SlaveData:
cell_voltages: list[float]
@ -60,7 +62,9 @@ class SlaveData:
def __init__(self) -> None:
self.cell_voltages = [-1] * CELLS_PER_SLAVE
self.cell_temps = [-1] * TEMP_SENSORS_PER_SLAVE
self.cell_temps = ([-1] * (TEMP_SENSORS_PER_SLAVE // 2)) + (
[0] * (TEMP_SENSORS_PER_SLAVE // 2)
)
class AccumulatorData:
@ -492,6 +496,10 @@ class Worker(QObject):
self.decode_panic_frame(rx_data[frame_start + 3 : frame_start + 11])
rx_data = rx_data[frame_start + 11 :]
continue
elif (frame_start := self.check_status_start(rx_data)) != -1:
self.decode_status_frame(rx_data[frame_start + 3 : frame_start + 11])
rx_data = rx_data[frame_start + 11 :]
continue
break
def check_log_start(self, buf: bytes):
@ -503,6 +511,9 @@ class Worker(QObject):
def check_panic_start(self, buf: bytes):
return buf[:-12].find(b"PAN")
def check_status_start(self, buf: bytes):
return buf[:-12].find(b"STA")
def decode_log_frame(self, buf: bytes):
msg_id = buf[0]
slave = msg_id >> 4
@ -512,25 +523,44 @@ class Worker(QObject):
return
if frame_id == 0:
for i in range(7):
data.slaves[slave].cell_voltages[i] = buf[i + 1] * VOLTAGE_CONV
for i in range(3):
raw = (buf[i * 2 + 1] << 8) | buf[i * 2 + 2]
data.slaves[slave].cell_voltages[i] = raw * VOLTAGE_CONV
elif frame_id == 1:
for i in range(3):
data.slaves[slave].cell_voltages[i + 7] = buf[i + 1] * VOLTAGE_CONV
for i in range(4):
data.slaves[slave].cell_temps[i] = buf[i + 4] * TEMP_CONV
raw = (buf[i * 2 + 1] << 8) | buf[i * 2 + 2]
data.slaves[slave].cell_voltages[i + 3] = raw * VOLTAGE_CONV
elif frame_id == 2:
for i in range(7):
data.slaves[slave].cell_temps[i + 4] = buf[i + 1] * TEMP_CONV
for i in range(3):
raw = (buf[i * 2 + 1] << 8) | buf[i * 2 + 2]
data.slaves[slave].cell_voltages[i + 6] = raw * VOLTAGE_CONV
elif frame_id == 3:
for i in range(7):
data.slaves[slave].cell_temps[i + 11] = buf[i + 1] * TEMP_CONV
for i in range(1):
raw = (buf[i * 2 + 1] << 8) | buf[i * 2 + 2]
data.slaves[slave].cell_voltages[i + 9] = raw * VOLTAGE_CONV
for i in range(2):
raw = (buf[i * 2 + 3] << 8) | buf[i * 2 + 4]
data.slaves[slave].cell_temps[i] = raw * TEMP_CONV
elif frame_id == 4:
for i in range(7):
data.slaves[slave].cell_temps[i + 18] = buf[i + 1] * TEMP_CONV
for i in range(3):
raw = (buf[i * 2 + 1] << 8) | buf[i * 2 + 2]
data.slaves[slave].cell_temps[i + 2] = raw * TEMP_CONV
elif frame_id == 5:
for i in range(7):
data.slaves[slave].cell_temps[i + 25] = buf[i + 1] * TEMP_CONV
for i in range(3):
raw = (buf[i * 2 + 1] << 8) | buf[i * 2 + 2]
data.slaves[slave].cell_temps[i + 5] = raw * TEMP_CONV
elif frame_id == 6:
for i in range(3):
raw = (buf[i * 2 + 1] << 8) | buf[i * 2 + 2]
data.slaves[slave].cell_temps[i + 8] = raw * TEMP_CONV
elif frame_id == 7:
for i in range(3):
raw = (buf[i * 2 + 1] << 8) | buf[i * 2 + 2]
data.slaves[slave].cell_temps[i + 11] = raw * TEMP_CONV
elif frame_id == 8:
for i in range(3):
raw = (buf[i * 2 + 1] << 8) | buf[i * 2 + 2]
data.slaves[slave].cell_temps[i + 14] = raw * TEMP_CONV
else:
print(f"Unknown frame ID: {frame_id} (buf: {repr(buf)})", file=sys.stderr)
# time.sleep(1)
@ -609,6 +639,10 @@ class Worker(QObject):
data.panic_errorcode = buf[0]
data.panic_errorarg = buf[1]
def decode_status_frame(self, buf: bytes):
ts_state = buf[1] & 0x7F
data.panic = ts_state == TS_ERROR
INTERNAL_RESISTANCE_CURVE_X = [2.0, 4.12]
INTERNAL_RESISTANCE_CURVE_Y = [0.0528, 0.0294]
SOC_OCV_X = [2.1, 2.9, 3.2, 3.3, 3.4, 3.5, 3.68, 4.0, 4.15, 4.2]
@ -633,8 +667,8 @@ class Worker(QObject):
temps = [-1]
min_t = min(temps)
max_t = max(temps)
for i in range(16, 32):
data.slaves[slave].cell_temps[i] = random.randint(min_t, max_t)
# for i in range(16, 32):
# data.slaves[slave].cell_temps[i] = random.randint(min_t, max_t)
def stop(self):
self.continue_run = False # set the run condition to false on stop