X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=ROM2%2Fdisplay_basic.c;h=9d3264e4c563f515db6d564dda8301d90117bdbd;hb=12a32b8bede21a6011d240bf7e63fc6705322717;hp=72d8ac0ad08918e478cbf89ea5dc39b4c267cf01;hpb=41ad37ba6d86ccc4f8f720cb09f7891ae166cb38;p=uccvend-snackrom.git

diff --git a/ROM2/display_basic.c b/ROM2/display_basic.c
index 72d8ac0..9d3264e 100644
--- a/ROM2/display_basic.c
+++ b/ROM2/display_basic.c
@@ -13,36 +13,42 @@
 void display_send_byte(char c);
 void display_reset();
 
-void set_msg(char newmsg[10]) {
+void set_msg(char newmsg[11]) {
 	int i;
 	display_reset();
+	spi_enable();
 	for (i=0; i < 10; i++) {
+		if (newmsg[i] == 0) break;
+	}
+	for (i--; i >= 0; i--) {
 		display_send_byte(newmsg[i]&0x7f);
 	}
+	spi_disable();
 }
 
 void display_send_byte(char c) {
 	bset_misc_output(A3800_DISPLAY_WRITE);  /* enable the display clock */
 
 	_io_ports[M6811_SPDR] = c;                  /* load SPI with byte */
-	while(!(_io_ports[M6811_SPDR]&M6811_SPIE)); /* wait for completion */
-	_io_ports[M6811_SPDR];                      /* SPDR read to clear SPIE flag */
+	while(!(_io_ports[M6811_SPSR]&M6811_SPIF)); /* wait for completion */
+	_io_ports[M6811_SPDR];                      /* SPDR read to clear SPIF flag */
 
 	bclr_misc_output(A3800_DISPLAY_WRITE);  /* disable the display clock */
 }
 
-#define DISPLAY_DELAY  100 /* ms to delay between ops - could be tweaked */
+#define DISPLAY_DELAY  50 /* ms to delay between ops - could be tweaked */
 void display_reset() {
 	/* lower the reset line for a while */
 	bclr((void*)&_io_ports[M6811_PORTA], PORTA_DISP_RESET);
 	delay(DISPLAY_DELAY);
 	bset((void*)&_io_ports[M6811_PORTA], PORTA_DISP_RESET);
+	delay(DISPLAY_DELAY);
 
 	spi_enable();
-	delay(DISPLAY_DELAY);
 
 	display_send_byte(0xC0 | 10);    /* tell the controller there are 10 digits */
-	display_send_byte(0xE0);    /* set duty cycle to 100%                  */
+	//display_send_byte(0xE0);    /* set duty cycle to 0%                  */
+	display_send_byte(0xFF);    /* set duty cycle to 100%                */
 
 	spi_disable();
 }