From def8902c1681a94ccb70d90cc855aedbc6a9e918 Mon Sep 17 00:00:00 2001
From: hackbard <hackbard@staubsauger.localdomain>
Date: Tue, 4 Sep 2007 03:35:29 +0200
Subject: [PATCH] display backlight fun ..., display init (not working!), spi1
stuff for cc1100
---
betty/betty.c | 125 ++++++++++++++++++++++++++++++++++++++++++++++++--
1 file changed, 122 insertions(+), 3 deletions(-)
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;
--
2.39.5