This page (revision-15) was last changed on 2021-05-07 09:36 by Murray Altheim

This page was created on 2021-03-08 04:23 by Murray Altheim

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Version Date Modified Size Author Changes ... Change note
15 2021-05-07 09:36 7 KB Murray Altheim to previous
14 2021-05-07 09:31 7 KB Murray Altheim to previous | to last
13 2021-03-09 09:47 7 KB Murray Altheim to previous | to last
12 2021-03-09 09:33 7 KB Murray Altheim to previous | to last
11 2021-03-09 09:33 7 KB Murray Altheim to previous | to last
10 2021-03-09 09:26 6 KB Murray Altheim to previous | to last
9 2021-03-09 09:22 6 KB Murray Altheim to previous | to last
8 2021-03-09 09:15 5 KB Murray Altheim to previous | to last
7 2021-03-08 05:22 5 KB Murray Altheim to previous | to last
6 2021-03-08 05:04 4 KB Murray Altheim to previous | to last
5 2021-03-08 04:47 4 KB Murray Altheim to previous | to last
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3 2021-03-08 04:37 2 KB Murray Altheim to previous | to last
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1 2021-03-08 04:23 1 KB Murray Altheim to last

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Difference between version and

At line 64 changed one line
The first block sets the SDA and SCL pins for I2C Controller 0 to pin 8 and 9 (resp.), then reads and writes from the address 0x76. The second configures I2C Controller 1 to pin 6 and 7, then writes and reads from address 0x76.
The first block sets the SDA and SCL pins for I2C Controller 0 to pin 8 and 9 (resp.), then writes 3 bytes of data to the slave address 76, then reads 4 bytes back from the same address. The second configures I2C Controller 1 to pin 6 and 7, then writes 3 bytes to memory address starting at 6, then reads 4 bytes starting at address 2 of the slave at memory address 76.
At line 69 changed 3 lines
i2c.scan()
i2c.writeto(76, b'123')
i2c.readfrom(76, 4)
i2c.scan() # scan for slaves, returning a list of 7-bit addresses
At line 71 added 3 lines
i2c.writeto(42, b'123') # write 3 bytes to slave with 7-bit address 42
i2c.readfrom(42, 4) # read 4 bytes from slave with 7-bit address 42
At line 75 changed 2 lines
i2c.writeto_mem(76, 6, b'456')
i2c.readfrom_mem(76, 6, 4)
i2c.readfrom_mem(42, 8, 3) # read 3 bytes from memory of slave 42,
# starting at memory-address 8 in the slave
i2c.writeto_mem(42, 2, b'\x10') # write 1 byte to memory of slave 42
# starting at address 2 in the slave
At line 82 added 4 lines
}}}
This page (revision-15) was last changed on 2021-05-07 09:36 by Murray AltheimTop