From: hackbard Date: Tue, 4 Sep 2007 01:35:29 +0000 (+0200) Subject: display backlight fun ..., display init (not working!), spi1 stuff for cc1100 X-Git-Url: https://hackdaworld.org/gitweb/?a=commitdiff_plain;h=def8902c1681a94ccb70d90cc855aedbc6a9e918;p=my-code%2Farm.git display backlight fun ..., display init (not working!), spi1 stuff for cc1100 --- diff --git a/betty/betty.c b/betty/betty.c index f3e08ce..81b4687 100644 --- a/betty/betty.c +++ b/betty/betty.c @@ -17,6 +17,7 @@ /* bank 0/2 and boootloader addr/size */ #define BANK0 0x80000000 +#define BANK1 0x81000000 #define BANK2 0x82000000 #define BANK_SIZE 0x00100000 #define BOOTLOADER 0x7fffe000 @@ -30,6 +31,10 @@ #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))) + /* * type definitions */ @@ -166,6 +171,117 @@ u8 uart0_get_byte(void) { 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 */ @@ -173,17 +289,20 @@ u8 uart0_get_byte(void) { int main() { char buf[]="betty - live from the flash at 0x80000000! ;)\r\n"; - u8 byte; pll_init(); uart0_init(); ext_mem_bank_init(); pin_select_init(); + init_lcd(0); + bl_init(); + + pause(0xffffff); while(1) { - byte=uart0_get_byte(); uart0_send_string(buf); - uart0_send_byte(byte); + bl_toggle(); + pause(0x9ffff); } return 0;