*
*/
-/*
- * includes
- */
-
-#include "lpc2xxx.h"
+/* includes */
+#include "betty.h"
/*
- * defines
+ * functions
*/
-/* 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)))
+#define cc1100_init spi1_init(8,SPI_MASTER,8)
/*
- * type definitions
+ * main function
*/
-typedef unsigned char u8;
-typedef unsigned short u16;
-typedef unsigned int u32;
-
- /*
- * functions
- */
-
-void mmap_init(u8 memtype) {
-
- MEMMAP=memtype;
-}
+int main() {
-void pll_init(void) {
+ char announce[]="betty - live from flash at 0x80000000! ;)\r\n";
+ t_button button;
+ u32 addr;
- /* 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;
-}
+ /* system init */
+ pll_init();
-void ext_mem_bank_init(void) {
+ /* uart init */
+ uart0_init();
- BCFG0=0x10000420; // flash 1
- BCFG1=0x00000c42; // lcd
- BCFG2=0x10000420; // flash 2
-}
+ /* display init */
+ display_bl_init();
+ /* button init */
+ button_init(&button);
+ button_set_retries(&button,100);
-void pin_select_init() {
+ /* flash init */
+ flash_init();
/*
- * a[19:2] -> address lines
+ * start it ...
*/
- 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
-}
-
-void uart0_send_string(char *txbuf) {
-
- 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;
- }
-}
-
-void uart0_send_buf32(u32 *buf,int len) {
-
- 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;
- }
-}
-
-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;
- }
- 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() {
+ /* pause - seems to not work if running from flash! (?) */
+ pause(0xffffff);
- char buf[]="betty - live from the flash at 0x80000000! ;)\r\n";
+ /* announce */
+ uart0_send_string(announce);
- pll_init();
- uart0_init();
- ext_mem_bank_init();
- pin_select_init();
- init_lcd(0);
- bl_init();
+ /* toggle backlight */
+ display_bl_toggle();
- pause(0xffffff);
+ //addr=0x82000000;
+ flash_sector_erase(BANK2,0);
+ addr=FLASH_BANK2;
while(1) {
- uart0_send_string(buf);
- bl_toggle();
- pause(0x9ffff);
+ pause(0x0fffff);
+
+ /* button test! */
+ if(button_get_event(&button)) {
+ uart0_send_string(announce);
+ if(button.key[0]==BUTTON_POWER) {
+ display_bl_toggle();
+ flash_write_buf(addr,(u16 *)announce,42);
+ addr+=64;
+ }
+ }
}
return 0;
projects / my-code / arm.git / blobdiff