61 lines
1.6 KiB
Python
61 lines
1.6 KiB
Python
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#!/usr/bin/env python3
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import sys
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import struct
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import yaml
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from intelhex import IntelHex
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def as_fxp(v):
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return int(v * 2**16 + 0.5)
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BASE_ADDR = 0x08080000
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FLAG_NAME_TO_BIT_INDEX = {
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'USE_DCDC_CONTROL': 0
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}
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CONFIG_KEY_TO_OFFSET = {
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# note: flags are at 0x0000, but not listed here due to special handling.
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'CORRIDOR_MIN_TEMPERATURE': 0x0004,
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'CORRIDOR_MAX_TEMPERATURE': 0x0008,
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'FAN_START_TEMPERATURE': 0x000C,
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'FAN_OFF_TEMPERATURE': 0x0010,
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'EMERGENCY_TEMPERATURE': 0x0014,
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'DUTY_CYCLE_MIN': 0x0018,
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'DUTY_CYCLE_MAX': 0x001C,
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'DUTY_CYCLE_START': 0x0020,
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'GAIN_T_HIGH_P': 0x0024,
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'GAIN_T_HIGH_I': 0x0028,
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'GAIN_T_LOW_P': 0x002C,
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'GAIN_T_LOW_I': 0x0030,
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}
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if __name__ == "__main__":
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output = IntelHex()
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if len(sys.argv) < 3:
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print(f"usage: {sys.argv[0]} <yaml-config> <output-hex>")
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sys.exit(1)
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with open(sys.argv[1], 'r') as configfile:
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config = yaml.safe_load(configfile)
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flags = 0
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for key, bitidx in FLAG_NAME_TO_BIT_INDEX.items():
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if config['flags'][key]:
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flags |= (1 << bitidx)
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enc_bytes = struct.pack('<I', flags)
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output.puts(BASE_ADDR + 0x0000, enc_bytes)
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for key, offset in CONFIG_KEY_TO_OFFSET.items():
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value = as_fxp(config['config'][key])
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enc_bytes = struct.pack('<i', value)
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output.puts(BASE_ADDR + offset, enc_bytes)
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output.write_hex_file(sys.argv[2])
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