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Update multiboot to use the new LCD poweron procedure.

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This commit is contained in:
claudiol 2021-01-08 09:04:46 -05:00
parent 51f64504b8
commit b88dc2cbf3
1 changed files with 8 additions and 2 deletions
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10
firmware/sys/target_prime1/boot_multiload.c
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@ -44,6 +44,7 @@ static void tobin(uint32_t value, char *buffer) {
void printline(char *left_text, char *right_text) {
if(line==-1) {
lcd_poweron();
lcd_setmode(BPPMODE_4BPP, (unsigned int *)MEM_PHYS_SCREEN);
lcd_on();
@ -69,9 +70,14 @@ int esc_pressed() {
*GPDCON = (*GPDCON & 0xffff0000) | 0X5555; // ALL ROWS TO OUTPUT
*GPDUDP = (*GPDUDP &0xffff0000) | 0x5555; // PULL DOWN ENABLE ON ALL OUTPUTS (TEMPORARILY SET TO INPUTS DURING SCAN)
*GPDDAT &= 0xffff0000; // ALL ROWS LOW
*GPDDAT |= (1 << 6);
*GPDDAT |= (1 << 6); // JUST 1 ROW ENABLED
return *GPGDAT & (1 << 4);
// READ MANY TIMES TO ALLOW SIGNALS TO STABILIZE
int k;
for(k=0;k<500;++k) {
if(*GPGDAT & (1 << 4)) return 1;
}
return 0;
}
// Initialize global variables region to zero