> I may be confused. are you having trouble with fat32 or the
> hard disk
> lib? What loop are you stuck in?
The problem is in the pata lib... or in the compiler or in my PICs :-)
For debugging I've done some additions and modifications to
pata_hd_read_sector_address()
var byte count1=0
repeat
-- get the data trough the ide interface
print_byte_dec(serial_hw_data,count1)
serial_hw_data="a"
pata_hd_iord = high ^ PATA_HD_NO_INVERTER -- start read pulse such
serial_hw_data="b"
pata_hd_delay_100ns()
serial_hw_data="c"
pata_hd_sector_buffer_low[count1] = pata_hd_data_low -- get low da
serial_hw_data="d"
pata_hd_sector_buffer_high[count1] = pata_hd_data_high -- get high
serial_hw_data="e"
pata_hd_iord = low ^ PATA_HD_NO_INVERTER -- end read pulse
serial_hw_data="f"
serial_hw_data=13
serial_hw_data=10
count1=count1+1
until count1 == 0
If I strip out everything, e.g. read pulses, delay and port reads, the loop
runs and displays:
0abcdef
1abcdef
2abcdef
.
.
.
If just one statement of those mentioned is not commented out, display is:
0abcdef
(including the <13><10>)
I have no idea yet what's happening then, if the device goes to sleep, if it
jumps into garbage code, if it is trapped inside some obscure loop or if it
waits for something to happen.
My next step would be to implement a trace function that regularly outputs the
program counter value to see where the program hangs.
> I am going to have new (final) fat32 files up soon in the
> sample & lib
> directories. Next, I'll have to add support for writing
> file names,
> and also for writing to the end of an file existing file
> (while
> creating additional fragments). That's gonna be a pain. But
> still fun
> of course :)
Don't be discouraged by your libs not working yet here. We'll find the problem
and improve your libs, or the compiler, or the chip files :-)
Greets,
Kiste
--
You received this message because you are subscribed to the Google Groups
"jallib" group.
To post to this group, send email to [email protected].
To unsubscribe from this group, send email to
[email protected].
For more options, visit this group at
http://groups.google.com/group/jallib?hl=en.
