38 lines
856 B
Python
38 lines
856 B
Python
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import string
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import time
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import serial
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def write_ascii(uart, data):
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uart.write(bytes("%c" % data, encoding="ascii"))
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class Uart2Spi:
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def __init__(self, port, baudrate):
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self.port = port
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self.baudrate = baudrate
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self.uart = serial.Serial(port, baudrate, timeout=0.01)
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def read(self, addr):
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while True:
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write_ascii(self.uart, 0x02)
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write_ascii(self.uart, (addr>>8)&0xFF)
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write_ascii(self.uart, (addr&0xFF))
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write_ascii(self.uart, 0x00)
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read = self.uart.read()
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if len(read) == 1:
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break
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return read[0]
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def write(self, addr, data):
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write_ascii(self.uart, 0x01)
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write_ascii(self.uart, (addr>>8)&0xFF)
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write_ascii(self.uart, (addr&0xFF))
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write_ascii(self.uart, data)
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def main():
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csr = Uart2Spi(1,115200)
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for i in range(100):
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csr.write(0x0000,i)
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print(csr.read(0x0000))
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if __name__ == '__main__':
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main()
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