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- /* ___DISCLAIMER___ */
- #include <arm/NXP/LPC17xx/LPC17xx.h>
- #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;
- }
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