Andrey
5d9818291b
Expose the existing registers through Modbus and service CAN using one GAS provider only in M95M02 builds. Include the EEPROM layout/driver, LOAD protection and calibration, firmware identity and shared CCS build workflow. Add transport/profile and SCI8 validation tests, documentation and the checked M95M02 firmware image.
66 lines
2.3 KiB
Python
66 lines
2.3 KiB
Python
"""Exercise the current board-specific SCI8 gate without TI tools or hardware."""
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from pathlib import Path
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import struct
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import subprocess
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import sys
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import tempfile
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import unittest
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ROOT = Path(__file__).resolve().parents[2]
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LIMIT = (0x3FFF - (128 + 1)) * 2
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def image(size):
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header = struct.pack('<H', 0x08AA) + bytes(16) + struct.pack('<HH', 0, 0x8000)
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blocks = max(1, (size-24+131075)//131076)
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remaining = (size-24-blocks*6)//2
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result = bytearray(header)
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for _ in range(blocks):
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words = min(65535, remaining)
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result += struct.pack('<HHH', words, 0, 0x8000) + bytes(words*2)
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remaining -= words
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return bytes(result)+bytes(2)
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class FirmwareGateTest(unittest.TestCase):
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def check_image(self, data, success, profile="AT25256B"):
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with tempfile.TemporaryDirectory() as directory:
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source = Path(directory) / 'candidate.bin'
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source.write_bytes(data)
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result = subprocess.run([
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sys.executable, str(ROOT / 'tests/gas167/check_image.py'),
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str(source), '--eeprom', profile,
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], capture_output=True)
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self.assertEqual(result.returncode == 0, success,
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result.stderr.decode(errors='replace'))
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self.assertEqual(source.read_bytes(), data)
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return result.stdout + result.stderr
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def test_exact_boundary_is_accepted(self):
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self.check_image(image(LIMIT), True)
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def test_34a95bc5_size_is_rejected(self):
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self.check_image(image(32518), False)
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def test_missing_boot_terminator_is_rejected(self):
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self.check_image(image(100)[:-2], False)
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def test_partial_block_is_rejected(self):
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self.check_image(image(100)[:-10], False)
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def test_m95_capacity_does_not_expand_code_ram(self):
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diagnostic = self.check_image(image(261884), False, "M95M02")
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self.assertIn(b'outside code RAM', diagnostic)
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self.check_image(image(261886), False, "M95M02")
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def test_m95_image_rejected_for_small_part(self):
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self.check_image(image(32734), True, "M95M02")
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self.check_image(image(32734), False, "AT25256B")
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def test_wrong_format_is_rejected(self):
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self.check_image(bytes(100), False)
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if __name__ == '__main__':
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unittest.main()
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