/* ___DISCLAIMER___ */ #include #include "bits.h" #include "timer.h" #include "led.h" int led_rdyledstate = 0; int led_readledstate = 0; int led_writeledstate = 0; /* LED connections (Rev.C) LED color IO PWM --------------------------- ready green P2.4 PWM1[5] read yellow P2.5 PWM1[6] write red P1.23 PWM1[4] */ void rdyled( unsigned int state ) { BITBANG( LPC_GPIO2->FIODIR, 4 ) = state; led_rdyledstate = state; } void readled( unsigned int state ) { BITBANG( LPC_GPIO2->FIODIR, 5 ) = state; led_readledstate = state; } void writeled( unsigned int state ) { BITBANG( LPC_GPIO1->FIODIR, 23 ) = state; led_writeledstate = state; } void led_clkout32( uint32_t val ) { while ( 1 ) { rdyled( 1 ); delay_ms( 400 ); readled( ( val & BV( 31 ) ) >> 31 ); rdyled( 0 ); val <<= 1; delay_ms( 400 ); } } void toggle_rdy_led() { rdyled( ~led_rdyledstate ); } void toggle_read_led() { readled( ~led_readledstate ); } void toggle_write_led() { writeled( ~led_writeledstate ); } void led_panic() { while ( 1 ) { LPC_GPIO2->FIODIR |= BV( 4 ) | BV( 5 ); LPC_GPIO1->FIODIR |= BV( 23 ); delay_ms( 350 ); LPC_GPIO2->FIODIR &= ~( BV( 4 ) | BV( 5 ) ); LPC_GPIO1->FIODIR &= ~BV( 23 ); delay_ms( 350 ); } } void led_std() { BITBANG( LPC_PINCON->PINSEL4, 9 ) = 0; BITBANG( LPC_PINCON->PINSEL4, 8 ) = 0; BITBANG( LPC_PINCON->PINSEL4, 11 ) = 0; BITBANG( LPC_PINCON->PINSEL4, 10 ) = 0; BITBANG( LPC_PINCON->PINSEL3, 15 ) = 0; BITBANG( LPC_PINCON->PINSEL3, 14 ) = 0; BITBANG( LPC_PWM1->PCR, 12 ) = 0; BITBANG( LPC_PWM1->PCR, 13 ) = 0; BITBANG( LPC_PWM1->PCR, 14 ) = 0; } void led_init() { /* power is already connected by default */ /* set PCLK divider to 8 */ BITBANG( LPC_SC->PCLKSEL1, 21 ) = 1; BITBANG( LPC_SC->PCLKSEL1, 20 ) = 1; }