*
*/
-/*
- * includes
- */
-
-#include "lpc2xxx.h"
-
-/*
- * defines
- */
-
-/* bank 0/2 and boootloader addr/size */
-#define BANK0 0x80000000
-#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)))
+#include "betty.h"
/*
- * type definitions
+ * functions
*/
-typedef unsigned char u8;
-typedef unsigned short u16;
-typedef unsigned int u32;
-
- /*
- * functions
- */
-
void mmap_init(u8 memtype) {
MEMMAP=memtype;
void uart0_init(void) {
- PINSEL0=0x05; // pin select -> tx, rx
+ /* select pins 0.0 and 0.1 as tx and rx */
+ PINSEL0=(PINSEL0&~(0xf))|0x05; // pin select -> tx, rx
+
+ /* configure uart0 */
UART0_FCR=0x07; // enable fifo
UART0_LCR=0x83; // set dlab + word length
UART0_DLL=0x04; // br: 38400 @ 10/4 mhz
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;
+ }
+ LCD_CMD=0x2e;
+ pause(48000);
+ LCD_CMD=0x2f;
+ LCD_CMD=0xa4;
+ LCD_CMD=0xa6;
+}
+
+/*
+ * spi0 stuff (+ cc1100)
+ */
+
+#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;
+
+ while(!(S1SPSR&(1<<7)))
+ continue;
+}
+
+void bl_init(void) {
+
+ IODIR0|=(1<<4);
+}
+
+void bl_toggle(void) {
+
+ if(IOPIN0&(1<<4))
+ IOCLR0=(1<<4);
+ else
+ IOSET0=(1<<4);
+}
+
+void bl_on(void) {
+
+ IOCLR0=(1<<4);
+}
+
+void bl_off(void) {
+
+ IOSET0=(1<<4);
+}
+
/*
* main function
*/
int main() {
- char buf="betty - live from the flash at 0x80000000! ;)\r\n";
+ char buf[]="betty - live from flash at 0x80000000! ;)\r\n";
+ t_button button;
pll_init();
uart0_init();
ext_mem_bank_init();
pin_select_init();
+ init_lcd(0);
+ bl_init();
+ button_init(&button);
+ button_set_retries(&button,100);
+
+ pause(0xffffff);
- while(1)
- uart0_send_string(buf);
+ bl_toggle();
+
+ while(1) {
+ pause(0x0fffff);
+
+ /* button test! */
+ if(button_get_event(&button)) {
+ uart0_send_string(buf);
+ if(button.key[0]==BUTTON_POWER)
+ bl_toggle();
+ }
+ }
return 0;
}