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URL https://opencores.org/ocsvn/hf-risc/hf-risc/trunk

Subversion Repositories hf-risc

[/] [hf-risc/] [trunk/] [software/] [app/] [exp_io.c] - Rev 13

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#include <hf-risc.h>
#include <mcp23s17.h>
 
int main(void){
	uint8_t a, b;
 
	mcp23s17_init(0, ALL_OUTPUTS, ALL_OUTPUTS);
	mcp23s17_dir(0, 0, ALL_INPUTS);
	mcp23s17_dir(0, 1, ALL_INPUTS);
	a = mcp23s17_read(0, 0);
	b = mcp23s17_read(0, 1);
	mcp23s17_dir(0, 0, ALL_OUTPUTS);
	mcp23s17_dir(0, 1, ALL_OUTPUTS);
	mcp23s17_write(0, 0, 0xff);
	mcp23s17_write(0, 1, 0xff);
 
	return 0;
}
 

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