*
*/
-/*
- * includes
- */
-
-#include "lpc2xxx.h"
+/* includes */
+#include "betty.h"
/*
- * defines
+ * global variables
*/
-/* bank 0/2 and boootloader addr/size */
-#define BANK0 0x80000000
-#define BANK1 0x81000000
-#define BANK2 0x82000000
-#define BANK_SIZE 0x00100000
-#define BOOTLOADER 0x7fffe000
-#define BL_SIZE 0x00002000
-
-/* flash cmd addresses - flash[0-18] <--> arm[1-19]*/
-#define B0F555 (*((volatile unsigned short *)(BANK0|0xaaa))) // 0x555
-#define B0F2AA (*((volatile unsigned short *)(BANK0|0x554))) // 0x2aa
-#define B0F (*((volatile unsigned short *)(BANK0)))
-#define B2F555 (*((volatile unsigned short *)(BANK2|0xaaa))) // 0x555
-#define B2F2AA (*((volatile unsigned short *)(BANK2|0x554))) // 0x2aa
-#define B2F (*((volatile unsigned short *)(BANK2)))
-
-/* lcd command and data addresses */
-#define LCD_CMD (*((volatile unsigned char *)(BANK1)))
-#define LCD_DATA (*((volatile unsigned char *)(BANK1+1)))
+const char announce[]="betty - live from flash at 0x80000000! ;)\r\n";
+const char d1_txt[]="betty";
+const char d2_txt[]="- alphablend -";
+u8 contrast;
+t_button button;
+int sample_count;
/*
- * type definitions
+ * functions
*/
-typedef unsigned char u8;
-typedef unsigned short u16;
-typedef unsigned int u32;
-
- /*
- * functions
- */
-
-void mmap_init(u8 memtype) {
-
- MEMMAP=memtype;
-}
-
-void pll_init(void) {
-
- /* configuration */
- PLLCFG=0x42; // multiplier = 3 (for cclk), dividor = 4 (for f_cco)
- PLLCON=0x03; // enable and set as clk source for the lpc
- /* feed sequence */
- PLLFEED=0xaa;
- PLLFEED=0x55;
- /* wait for lock */
- while(!(PLLSTAT&(1<<10)))
- continue;
-}
-
-void ext_mem_bank_init(void) {
-
- BCFG0=0x10000420; // flash 1
- BCFG1=0x00000c42; // lcd
- BCFG2=0x10000420; // flash 2
-}
-
-
-void pin_select_init() {
-
- /*
- * a[19:2] -> address lines
- */
-
- PINSEL2=0x0d6041d4;
-}
-
-void uart0_init(void) {
-
- PINSEL0=0x05; // pin select -> tx, rx
- UART0_FCR=0x07; // enable fifo
- UART0_LCR=0x83; // set dlab + word length
- UART0_DLL=0x04; // br: 38400 @ 10/4 mhz
- UART0_DLM=0x00;
- UART0_LCR=0x03; // unset dlab
-}
+#define cc1100_init spi1_init(8,SPI_MASTER,8)
-void uart0_send_string(char *txbuf) {
+void display_string_page(u8 x,u8 p,u8 *s,u8 f,u8 o,u8 sp) {
- int i;
-
- i=0;
-
- while(txbuf[i]) {
- UART0_THR=txbuf[i++];
- /* flush if tx buffer maximum reached */
- if(!(i%16))
- while(!(UART0_LSR&(1<<6)))
- continue;
- }
-
- /* flush if \n and \r do not fit in the tx buffer */
- if(i>14)
- while(!(UART0_LSR&(1<<6)))
- continue;
-
- UART0_THR='\n';
- UART0_THR='\r';
-
- /* flush uart0 anyways */
- while(!(UART0_LSR&(1<<6)))
- continue;
-}
-
-void uart0_send_buf16(u16 *buf,int len) {
-
- int i;
-
- i=0;
-
- for(i=0;i<len/2;i++) {
- if(!(i%8))
- while(!(UART0_LSR&(1<<6)))
- continue;
- UART0_THR=buf[i]&0xff;
- UART0_THR=(buf[i]>>8)&0xff;
+ while(*(s)) {
+ if(x==DISPLAY_DIMX) {
+ p+=1;
+ x=o;
+ }
+ display_font_page(x,p,(u8 *)default_font+(*(s)<<3),f);
+ x+=sp;
+ s++;
}
}
-void uart0_send_buf32(u32 *buf,int len) {
+void audio_mute_toggle(void) {
- int i;
-
- i=0;
-
- for(i=0;i<len/4;i++) {
- if(!(i%4))
- while(!(UART0_LSR&(1<<6)))
- continue;
- UART0_THR=buf[i]&0xff;
- UART0_THR=(buf[i]>>8)&0xff;
- UART0_THR=(buf[i]>>16)&0xff;
- UART0_THR=(buf[i]>>24)&0xff;
+ if(IOPIN0&(1<<11))
+ IOCLR0=(1<<11);
+ else
+ IOSET0=(1<<11);
+}
+
+#define AUDIO_TONE_C (7500000/(262*256))
+#define AUDIO_TONE_D (7500000/(294*256))
+#define AUDIO_TONE_E (7500000/(330*256))
+#define AUDIO_TONE_F (7500000/(349*256))
+#define AUDIO_TONE_G (7500000/(392*256))
+//#define AUDIO_TONE_A (7500000/(440*256))
+#define AUDIO_TONE_A 120
+#define AUDIO_TONE_H (7500000/(494*256))
+
+void __attribute__ ((interrupt("IRQ"))) set_sample(void) {
+
+ //uart0_send_byte('S');
+ pwm_update_match(PWM_CHAN2,PWM_SINGLE_EDGE,sinus[sample_count++],0);
+ if(sample_count==0xff)
+ sample_count=0;
+ interrupt_ack();
+ interrupt_tc_ir_set(INTERRUPT_TC0,INTERRUPT_MATCH0);
+}
+
+void __attribute__ ((interrupt("IRQ"))) input_event(void) {
+
+ u8 noret,tries;
+
+ /* button scan */
+ if(button_get_event(&button)) {
+ switch(button.key[0]) {
+ case BUTTON_POWER:
+ display_logo((u8 *)default_logo);
+ break;
+ case BUTTON_DOWN:
+ if(contrast>0x00)
+ contrast-=1;
+ DISPLAY_SET_CONTRAST(contrast);
+ break;
+ case BUTTON_UP:
+ if(contrast<0x3f)
+ contrast+=1;
+ DISPLAY_SET_CONTRAST(contrast);
+ break;
+ case BUTTON_A:
+ display_fill_screen(DISPLAY_FILL_W);
+ break;
+ case BUTTON_B:
+ display_fill_screen(DISPLAY_FILL_LG);
+ break;
+ case BUTTON_C:
+ display_fill_screen(DISPLAY_FILL_DG);
+ break;
+ case BUTTON_D:
+ display_fill_screen(DISPLAY_FILL_B);
+ break;
+ case BUTTON_1:
+ display_rectangle_page(4,2,60,5,
+ DISPLAY_FILL_B,0xff);
+ break;
+ case BUTTON_2:
+ display_rectangle_page(40,5,50,5,
+ DISPLAY_FILL_LG,0x7f);
+ break;
+ case BUTTON_3:
+ break;
+ case BUTTON_4:
+ display_font_page(42,18,
+ (u8 *)default_font+(0x34<<3),
+ DISPLAY_FILL_B);
+ break;
+ case BUTTON_5:
+ display_font_page(50,18,
+ (u8 *)default_font+(0x35<<3),
+ DISPLAY_FILL_DG);
+ break;
+ case BUTTON_6:
+ display_font_page(58,18,
+ (u8 *)default_font+(0x36<<3),
+ DISPLAY_FILL_W);
+ break;
+ case BUTTON_7:
+ break;
+ case BUTTON_8:
+ break;
+ case BUTTON_BETTY:
+ display_string_page(50,13,(u8 *)d1_txt,
+ DISPLAY_FILL_B,0,8);
+ break;
+ case BUTTON_EXIT:
+ display_string_page(10,8,(u8 *)d2_txt,
+ DISPLAY_FILL_B,0,8);
+ break;
+ case BUTTON_MUTE:
+ audio_mute_toggle();
+ break;
+ default:
+ display_clear_screen();
+ break;
+ }
}
-}
-
-void uart0_send_byte(u8 send) {
-
- while(!(UART0_LSR&(1<<5)))
- continue;
-
- UART0_THR=send;
-}
-
-u8 uart0_get_byte(void) {
-
- u8 rx;
- while(!(UART0_LSR&(1<<0)))
- continue;
-
- rx=UART0_RBR;
-
- return rx;
-}
-
-void pause(int cnt) {
-
- while(cnt--)
- asm volatile ("nop");
-}
-
-void init_lcd(u8 s) {
-
- LCD_CMD=0xe1; // ?
- LCD_CMD=0xe2;
- pause(48000);
- LCD_CMD=0xab;
- LCD_CMD=0x27;
- LCD_CMD=0x81;
- LCD_CMD=0x3f;
- LCD_CMD=0x65;
- LCD_CMD=0x60;
- LCD_CMD=0x1c;
- LCD_CMD=0x61;
- LCD_CMD=0x0a;
- LCD_CMD=0x62;
- LCD_CMD=0x75;
- LCD_CMD=0x63;
- LCD_CMD=0x81;
- LCD_CMD=0x90;
- LCD_CMD=0x88;
- LCD_CMD=0x00;
- LCD_CMD=0x89;
- LCD_CMD=0x00;
- LCD_CMD=0x8a;
- LCD_CMD=0x33;
- LCD_CMD=0x8b;
- LCD_CMD=0x33;
- LCD_CMD=0x8c;
- LCD_CMD=0x66;
- LCD_CMD=0x8d;
- LCD_CMD=0x66;
- LCD_CMD=0x8e;
- LCD_CMD=0x99;
- LCD_CMD=0x8f;
- LCD_CMD=0x99;
- if(s) {
- LCD_CMD=0xa1;
- LCD_CMD=0xc0;
- }
- else {
- LCD_CMD=0xa0;
- LCD_CMD=0xc8;
+ /* resume the interrupt at button release */
+ noret=1;
+ while(noret) {
+ tries=0xff;
+ noret=1;
+ while(tries--) {
+ noret=IOPIN0&(1<<30)?0:1;
+ if(noret)
+ break;
+ }
}
- LCD_CMD=0x2e;
- pause(48000);
- LCD_CMD=0x2f;
- LCD_CMD=0xa4;
- LCD_CMD=0xa6;
+ interrupt_ack();
+ interrupt_ext_ir_set(INTERRUPT_EXT3);
}
/*
- * spi0 stuff (+ cc1100)
+ * main function
*/
-#define SLAVE 0
-#define MASTER 1
-
-void spi1_init(u8 width,u8 type,u8 div) {
-
- if((width<8)|(width>16))
- width=8;
- if(width==16)
- width=0;
-
- div&=0xfe;
- if(div<8)
- div=8;
-
- S1SPCR=(1<<2)|(width<<8)|(type<<5);
- S1SPCCR=div;
-}
-
-#define cc1100_init spi1_init(8,MASTER,8)
-
-void spi1_send(u16 data) {
-
- S1SPDR=data;
+int main() {
- while(!(S1SPSR&(1<<7)))
- continue;
-}
+ /* variables */
-void bl_init(void) {
+ /* init */
+ sample_count=0;
- IODIR0|=(1<<4);
-}
-
-void bl_toggle(void) {
+ /* system init */
+ pll_init();
+ pin_init();
+ ext_mem_init();
- if(IOPIN0&(1<<4))
- IOCLR0=(1<<4);
+ /* memory mapping - dirty! */
+ if((void *)announce<(void *)FLASH_BANK0)
+ mmap_init(MEMTYPE_RAM);
else
- IOSET0=(1<<4);
-}
-
-void bl_on(void) {
-
- IOCLR0=(1<<4);
-}
-
-void bl_off(void) {
-
- IOSET0=(1<<4);
-}
-
-/*
- * main function
- */
+ mmap_init(MEMTYPE_EXT);
+
+ /* uart init */
+ uart0_init();
-int main() {
+ /* display init */
+ display_bl_init();
+
+ /* button init */
+ button.mode=BUTTON_INT;
+ button_init(&button);
+ button_set_retries(&button,30);
+
+ /* flash init */
+ flash_init();
+
+ /* display init */
+ display_init();
+ contrast=0x38;
+
+ /* interrupt init */
+ interrupt_init();
+
+ // ext interrupt
+ interrupt_ext_ir_config(INTERRUPT_EXT3,INTERRUPT_EXT_NOWAKE,
+ INTERRUPT_EXT_MODE_EDGE,
+ INTERRUPT_EXT_POLAR_LOW);
+ interrupt_ext_ir_set(INTERRUPT_EXT3);
+ interrupt_enable(INTERRUPT_EINT3,INTERRUPT_MODE_VIRQ,
+ 0,(u32)&input_event);
+
+ // timer interrupt
+ interrupt_tc_config(INTERRUPT_TC0,INTERRUPT_TC_MODE_T,0,0);
+ interrupt_tc_match_config(INTERRUPT_TC0,INTERRUPT_M0,AUDIO_TONE_A,
+ INTERRUPT_TC_MATCH_IR|
+ INTERRUPT_TC_MATCH_RESET);
+ interrupt_tc_ir_set(INTERRUPT_TC0,INTERRUPT_MATCH0);
+ interrupt_enable(INTERRUPT_TIMER0,INTERRUPT_MODE_VIRQ,
+ 1,(u32)&set_sample);
+ interrupt_tc_enable(INTERRUPT_TC0);
+
+ /* pwm init */
+ pwm_reset;
+ pwm_set_rate_and_prescaler(0xff,0);
+ pwm_config(PWM_CHAN2,PWM_SINGLE_EDGE,0,0);
+ pwm_match_ctrl_config(PWM_CHAN2,PWM_MATCH_RESET);
+ pwm_enable;
+
- char buf[]="betty - live from the flash at 0x80000000! ;)\r\n";
+ /*
+ * start it ...
+ */
- pll_init();
- uart0_init();
- ext_mem_bank_init();
- pin_select_init();
- init_lcd(0);
- bl_init();
+ /* toggle the display back light */
+ display_bl_toggle();
- pause(0xffffff);
+ /* announce */
+ uart0_send_string((char *)announce);
+
while(1) {
- uart0_send_string(buf);
- bl_toggle();
- pause(0x9ffff);
+ pause(0xffffff);
+ uart0_send_string((char *)announce);
}
return 0;
}
-
projects / my-code / arm.git / blobdiff