Programmierung Soundmodul WTV020 in C

[davidt]

Ich habs in C umgesetzt:

//---- sound module config
#define sound_port PORTA
#define sound_reset PIN7_bm
#define sound_clk PIN6_bm
#define sound_data PIN5_bm
//---- sound module config

void wtv020_send_command(unsigned int command) {
	unsigned int mask;

	sound_port.OUTCLR = sound_clk;
	
	delay_ms(2);
	
	for (mask = 0x8000; mask > 0; mask >>= 1)
	{
		sound_port.OUTCLR = sound_clk;
		
		if(command & mask)
		{
			sound_port.OUTSET = sound_data;
		}
		else 
		{ 
			sound_port.OUTCLR = sound_data;
		}
		
		_delay_us(100);
		sound_port.OUTSET = sound_clk;
		_delay_us(100);
	}

	delay_ms(10);
}

und dann mit sowas ansteuern:

#define wtv020_play_pause wtv020_send_command(0xFFFE)
#define wtv020_stop wtv020_send_command(0xFFFF)
#define wtv020_mute wtv020_send_command(0xFFF0)