Hi,
I was struggling with an I2C LCD display until I found out on the
manufacturer website that, due to a design flaw, the I²C bus speed should
be 50 kHz
(for the record:
https://support.newhavendisplay.com/hc/en-us/community/posts/9600301114775-NHD-0220D3Z-NSW-BBW-V3-using-I2C-dropping-characters
)
My request here is to allow the user to define the sspadd value directly in
his application by modifying the following code in i2c_hardware.jal
-- set correct speed
if _i2c_bus_speed == 10 then sspadd = _i2c_1mhz
elsif _i2c_bus_speed == 4 then sspadd = _i2c_400khz
elsif _i2c_bus_speed == 1 then sspadd = _i2c_100khz
elsif _i2c_bus_speed == 0 then sspadd = _i2c_slowest
else sspadd = _i2c_100khz -- default
end if
so that the user may override the default 100 kHz value:
by defining _i2c_bus_speed = 0xFF and initialize sspadd with the needed
value in his application
* if _i2c_bus_speed != 0xFF then*
-- set correct speed
if _i2c_bus_speed == 10 then sspadd = _i2c_1mhz
elsif _i2c_bus_speed == 4 then sspadd = _i2c_400khz
elsif _i2c_bus_speed == 1 then sspadd = _i2c_100khz
elsif _i2c_bus_speed == 0 then sspadd = _i2c_slowest
else sspadd = _i2c_100khz -- default
end if
* end if*
What do you think ?
Kind regards,
David
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