I am new to XMOS, but think it's a great architecture. I am trying to get my first project built.
Using a clocked output, how do I start the first rising clock edge only after there is valid data? Here is my test code:
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#include <xs1.h>
out port outP = XS1_PORT_1F ;
out port outClock = XS1_PORT_1D ;
clock clk = XS1_CLKBLK_1 ;
int main ( void ) {
configure_clock_rate (clk, 100, 8);
configure_out_port (outP, clk, 0);
configure_port_clock_output (outClock, clk);
outP <: 1;
start_clock (clk);
while (1) {
outP <: 0;
outP <: 1;
}
}
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I am trying to start the clock after outP has gone high. When I run this in the simulator, I get the following trace:
As you can see, there are two rising clock edges before outP (port 1F) goes high. This won't work for my system, because the chip I am talking to will clock in garbage and be out of sync with the data. I need to have the clock start when the data is valid. How can I do this?
Any help in the next few hours would be greatly appreciated! ;-)
