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stc15: add core voltage option (STC15W)

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This is used on STC15W4 series and has no function on earlier MCUs.
There is no good way to filter options, unfortunately.
This commit is contained in:
Grigori Goronzy
2015-12-11 01:09:47 +01:00
parent 11b165c02c
commit 76b3418f0a
4 changed files with 63 additions and 6 deletions
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21
stcgal/protocols.py
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@ -446,13 +446,14 @@ class Stc15AOption(BaseOption):
class Stc15Option(BaseOption):
def __init__(self, msr):
assert len(msr) == 4
assert len(msr) == 5
self.msr = bytearray(msr)
self.options = (
("reset_pin_enabled", self.get_reset_pin_enabled, self.set_reset_pin_enabled),
("clock_source", self.get_clock_source, self.set_clock_source),
("clock_gain", self.get_clock_gain, self.set_clock_gain),
("cpu_core_voltage", self.get_core_voltage, self.set_core_voltage),
("watchdog_por_enabled", self.get_watchdog, self.set_watchdog),
("watchdog_stop_idle", self.get_watchdog_idle, self.set_watchdog_idle),
("watchdog_prescale", self.get_watchdog_prescale, self.set_watchdog_prescale),
@ -603,6 +604,18 @@ class Stc15Option(BaseOption):
self.msr[2] &= 0xdf
self.msr[2] |= 0x20 if val else 0x00
def get_core_voltage(self):
if self.msr[4] == 0xea: return "low"
elif self.msr[4] == 0xf7: return "mid"
elif self.msr[4] == 0xfd: return "high"
else: return "unknown"
def set_core_voltage(self, val):
volt_vals = {"low": 0xea, "mid": 0xf7, "high": 0xfd}
if val not in volt_vals.keys():
raise ValueError("must be one of %s" % list(volt_vals.keys()))
self.msr[4] = volt_vals[val]
class StcBaseProtocol:
"""Basic functionality for STC BSL protocols"""
@ -1635,7 +1648,7 @@ class Stc15Protocol(Stc15AProtocol):
"""Initialize options"""
# create option state
self.options = Stc15Option(status_packet[5:8] + status_packet[12:13])
self.options = Stc15Option(status_packet[5:8] + status_packet[12:13] + status_packet[37:38])
self.options.print()
def initialize_status(self, packet):
@ -1906,7 +1919,9 @@ class Stc15Protocol(Stc15AProtocol):
(self.trim_frequency >> 0) & 0xff,
0xff])
packet += bytes([msr[3]])
packet += bytes([0xff] * 27)
packet += bytes([0xff] * 23)
packet += bytes([msr[4]])
packet += bytes([0xff] * 3)
packet += bytes([self.trim_value[0], self.trim_value[1] + 0x3f])
packet += msr[0:3]
self.write_packet(packet)