138 lines
2.5 KiB
C
138 lines
2.5 KiB
C
#include <stdio.h>
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#include <board/gpio.h>
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void gpio_init() {
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// Enable LPC reset on GPD2
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GCR = 0x04;
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// Set GPIO data
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GPDRA = 0;
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GPDRB = (1 << 0);
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GPDRC = 0;
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GPDRD = (1 << 5) | (1 << 4) | (1 << 3);
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GPDRE = 0;
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GPDRF = (1 << 7) | (1 << 6);
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GPDRG = 0;
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GPDRH = 0;
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GPDRI = 0;
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GPDRJ = 0;
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// Set GPIO control
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GPCRA0 = 0x80;
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GPCRA1 = 0x00;
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GPCRA2 = 0x00;
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GPCRA3 = 0x80;
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GPCRA4 = 0x40;
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GPCRA5 = 0x44;
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GPCRA6 = 0x44;
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GPCRA7 = 0x44;
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GPCRB0 = 0x44;
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GPCRB1 = 0x44;
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GPCRB2 = 0x84;
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GPCRB3 = 0x00;
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GPCRB4 = 0x00;
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GPCRB5 = 0x44;
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GPCRB6 = 0x84;
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GPCRB7 = 0x80;
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GPCRC0 = 0x80;
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GPCRC1 = 0x84;
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GPCRC2 = 0x84;
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GPCRC3 = 0x84;
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GPCRC4 = 0x44;
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GPCRC5 = 0x44;
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GPCRC6 = 0x40;
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GPCRC7 = 0x44;
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GPCRD0 = 0x84;
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GPCRD1 = 0x84;
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GPCRD2 = 0x00;
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GPCRD3 = 0x80;
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GPCRD4 = 0x80;
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GPCRD5 = 0x44;
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GPCRD6 = 0x80;
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GPCRD7 = 0x80;
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GPCRE0 = 0x44;
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GPCRE1 = 0x44;
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GPCRE2 = 0x80;
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GPCRE3 = 0x40;
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GPCRE4 = 0x42;
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GPCRE5 = 0x40;
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GPCRE6 = 0x44;
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GPCRE7 = 0x44;
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GPCRF0 = 0x80;
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GPCRF1 = 0x44;
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GPCRF2 = 0x84;
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GPCRF3 = 0x44;
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GPCRF4 = 0x80;
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GPCRF5 = 0x80;
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GPCRF6 = 0x00;
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GPCRF7 = 0x80;
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GPCRG0 = 0x44;
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GPCRG1 = 0x44;
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GPCRG2 = 0x40;
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GPCRG3 = 0x00;
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GPCRG4 = 0x00;
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GPCRG5 = 0x00;
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GPCRG6 = 0x44;
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GPCRG7 = 0x00;
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GPCRH0 = 0x00;
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GPCRH1 = 0x80;
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GPCRH2 = 0x44;
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GPCRH3 = 0x44;
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GPCRH4 = 0x80;
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GPCRH5 = 0x80;
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GPCRH6 = 0x80;
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GPCRH7 = 0x80;
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GPCRI0 = 0x00;
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GPCRI1 = 0x00;
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GPCRI2 = 0x80;
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GPCRI3 = 0x00;
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GPCRI4 = 0x00;
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GPCRI5 = 0x80;
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GPCRI6 = 0x80;
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GPCRI7 = 0x80;
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GPCRJ0 = 0x82;
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GPCRJ1 = 0x80;
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GPCRJ2 = 0x40;
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GPCRJ3 = 0x80;
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GPCRJ4 = 0x44;
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GPCRJ5 = 0x40;
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GPCRJ6 = 0x44;
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GPCRJ7 = 0x80;
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}
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void gpio_debug_bank(
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char * bank,
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uint8_t data,
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uint8_t mirror,
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uint8_t pot,
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volatile uint8_t * control
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) {
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for(char i = 0; i < 8; i++) {
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printf(
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"%s%d data %d mirror %d pot %d control %02X\n",
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bank,
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i,
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(data >> i) & 1,
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(mirror >> i) & 1,
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(pot >> i) & 1,
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*(control + i)
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);
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}
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}
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void gpio_debug(void) {
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#define bank(BANK) gpio_debug_bank(#BANK, GPDR ## BANK, GPDMR ## BANK, GPOT ## BANK, &GPCRA0)
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bank(A);
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bank(B);
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bank(C);
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bank(D);
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bank(E);
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bank(F);
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bank(G);
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bank(H);
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bank(I);
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bank(J);
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#undef bank
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}
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