kopia lustrzana https://github.com/peterhinch/micropython_eeprom
EEPROM: spi presence detect address randomisation.
rodzic
5861e93f48
commit
75e8311ffb
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@ -16,10 +16,12 @@ def get_eep():
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Pin.board.EN_3V3.value(1)
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time.sleep(0.1) # Allow decouplers to charge
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if uos.uname().sysname == "esp8266":
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if uos.uname().sysname == "esp8266": # ESP8266 test fixture
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eep = EEPROM(SoftI2C(scl=Pin(13, Pin.OPEN_DRAIN), sda=Pin(12, Pin.OPEN_DRAIN)), T24C512)
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else:
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eep = EEPROM(I2C(2), T24C512) # Pyboard D or 1.x
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elif uos.uname().sysname == "esp32": # ChronoDot on ESP32-S3
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eep = EEPROM(SoftI2C(scl=Pin(9, Pin.OPEN_DRAIN), sda=Pin(8, Pin.OPEN_DRAIN)), 256, addr=0x50)
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else: # Pyboard D test fixture
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eep = EEPROM(I2C(2), T24C512)
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print("Instantiated EEPROM")
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return eep
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@ -24,14 +24,16 @@ def get_eep(stm):
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if stm:
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if ESP8266:
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spi = SoftSPI(baudrate=5_000_000, sck=Pin(4), miso=Pin(0), mosi=Pin(2))
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else: # Pyboard
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spi = SPI(2, baudrate=5_000_000)
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else: # Pyboard. 1.22.1 hard SPI seems to have a read bug
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# spi = SPI(2, baudrate=5_000_000)
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spi = SoftSPI(baudrate=5_000_000, sck=Pin('Y6'), miso=Pin('Y7'), mosi=Pin('Y8'))
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eep = EEPROM(spi, cspins, 256)
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else:
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if ESP8266:
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spi = SoftSPI(baudrate=20_000_000, sck=Pin(4), miso=Pin(0), mosi=Pin(2))
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else:
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spi = SPI(2, baudrate=20_000_000)
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# spi = SPI(2, baudrate=20_000_000)
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spi = SoftSPI(baudrate=20_000_000, sck=Pin('Y6'), miso=Pin('Y7'), mosi=Pin('Y8'))
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eep = EEPROM(spi, cspins, 128)
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print("Instantiated EEPROM")
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return eep
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@ -46,10 +46,10 @@ class EEPROM(EepromDevice):
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def _devtest(self, cs, la, v=None):
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buf = bytearray(1)
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mvp = self._mvp
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mvp[:] = b"\0" * 5
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# mvp[1] = la >> 16
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# mvp[2] = (la >> 8) & 0xFF
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# mvp[3] = la & 0xFF
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# mvp[:] = b"\0" * 5 # test with addr 0
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mvp[1] = la >> 16
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mvp[2] = (la >> 8) & 0xFF
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mvp[3] = la & 0xFF
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mvp[0] = _READ
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cs(0)
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self._spi.write(mvp[:4])
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