Hello,
I would be appreciative of some here I am trying to use this chip for an arduino project. I found a very very poor schematic and pin outs on the web which gives me a basic hook up the chip powers up and command line controls appear to work. However in the notes (and very poor ones at that) on the web page it suggests that for a new device I need to initialise the oscillator, I'm unsure how to do this from the command line in arduino, these look like great replacements for the DS1307 RTCs that you can buy,but of course I need to be able to set it.
Part of the poor instructions are as follows;-
"If you are using new module first step is to run the oscillator. Instruction included in datasheet archive. Write 010x pattern to register A. writebyte(regA,0x2A) function will help to run newly shipped module at start-up."
I can read the registers easily enough, and there is an 'i' command which tells me that the chip has been initialised but beyond that when I probe for the time is the following;-
init done
't' gives
4:2:0 7.8.9 Fri
'REG' gives
A: 1010
B: 1011
C: 1100
D: 1101
Can anyone help me understand what if anything needs to be done my end to prime the chip from first instance (these are new chips)
I have the arduino code if anyone wants it, help would be very much appreciated as I see great potential for these chips in homebrew projects.
Thanks, in advance