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'[EE] Issues syncing PIC24FJ128 with C328 camera mo'
2007\11\05@153710 by nesl7998

picon face

I am having issues syncing a Microchip Explorer 16 demo board (running a
PIC24FJ128) with a C328 camera module. I am sending the data signal
"0xAA0D00000000" at a baud rate of 9600 through UART1. I verified the signal
with an oscilloscope and comparing the signal to the one pictured in the
C328's documentation giving an exact match. My problem is that after sending
this signal, I am not receiving an acknowledgment or sync signal from the
camera. Is there a specific baud rate or delay between signals I need to
use? Is there an initial toggle signal needed to be sent (0x5 or 0xA) before
the sync signal is to be sent?
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2007\11\19@102524 by nesl7998

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No, unfortunately my issue still goes unsolved. I've re-checked my code and
the outgoing signal on the UART transmit pin, and both look like they should
work fine. I'm currently in the process of converting my code to 8-bit, as I
have an 8-bit demo board that uses a EUSART with very few peripherals
attached. I am hoping that I will be able to see some sort of signal
returned from the camera. You say you have an eval board, have you scoped
the board's transmit signal to the camera? If so, what are you getting? I am
sending a sync signal, followed by a 10 (signifies end of byte).

piecurus wrote:
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2007\11\20@101513 by nesl7998

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I have tinkered with the baudrate a little. I've tried sending at 14400 and
9600 bps, and neither gave me results. The camera module says it has auto
baudrate detection, but I question the validity of it. I'm using an internal
clock. How did you get the camera to send data back? I haven't gotten as
much as a single bit from the unit.


piecurus wrote:
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