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40 lines
947 B
40 lines
947 B
#!/usr/bin/env python3
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import time
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from panda import Panda, PandaDFU
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class GPIO:
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STM_RST_N = 124
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STM_BOOT0 = 134
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def gpio_init(pin, output):
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with open(f"/sys/class/gpio/gpio{pin}/direction", 'wb') as f:
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f.write(b"out" if output else b"in")
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def gpio_set(pin, high):
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with open(f"/sys/class/gpio/gpio{pin}/value", 'wb') as f:
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f.write(b"1" if high else b"0")
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if __name__ == "__main__":
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for pin in (GPIO.STM_RST_N, GPIO.STM_BOOT0):
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gpio_init(pin, True)
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# flash bootstub
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print("resetting into DFU")
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gpio_set(GPIO.STM_RST_N, 1)
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gpio_set(GPIO.STM_BOOT0, 1)
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time.sleep(0.2)
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gpio_set(GPIO.STM_RST_N, 0)
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gpio_set(GPIO.STM_BOOT0, 0)
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# bootstub flash takes 2s and is limited by the 255 byte flashing chunk size
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print("flashing bootstub")
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assert Panda.wait_for_dfu(None, 5)
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PandaDFU(None).recover()
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print("flashing app")
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assert Panda.wait_for_panda(None, 5)
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p = Panda()
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assert p.bootstub
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p.flash()
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