20 lines
554 B
Python
20 lines
554 B
Python
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import esp
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import uctypes
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def main():
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ROM = uctypes.bytearray_at(0x40200000, 16)
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fid = esp.flash_id()
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print("Flash ID: %x (Vendor: %x Device: %x)" % (fid, fid & 0xff, fid & 0xff00 | fid >> 16))
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print("Flash bootloader data:")
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SZ_MAP = {0: "512KB", 1: "256KB", 2: "1MB", 3: "2MB", 4: "4MB"}
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FREQ_MAP = {0: "40MHZ", 1: "26MHZ", 2: "20MHz", 0xf: "80MHz"}
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print("Byte @2: %02x" % ROM[2])
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print("Byte @3: %02x (Flash size: %s Flash freq: %s)" % (ROM[3], SZ_MAP.get(ROM[3] >> 4, "?"), FREQ_MAP.get(ROM[3] & 0xf)))
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main()
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