nes-proj/tests/nvm-read.c

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#define GPIO_FUNC_SEL0 0x80000018 /* GPIO 15 - 0; 2 bit blocks */
#define BASE_UART1 0x80005000
#define UART1_CON 0x80005000
#define UART1_STAT 0x80005004
#define UART1_DATA 0x80005008
#define UR1CON 0x8000500c
#define UT1CON 0x80005010
#define UART1_CTS 0x80005014
#define UART1_BR 0x80005018
#define GPIO_PAD_DIR0 0x80000000
#define GPIO_DATA0 0x80000008
#include "embedded_types.h"
#include "nvm.h"
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#include "maca.h"
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#define reg(x) (*(volatile uint32_t *)(x))
#define DELAY 400000
void putc(uint8_t c);
void puts(uint8_t *s);
void put_hex(uint8_t x);
void put_hex16(uint16_t x);
void put_hex32(uint32_t x);
const uint8_t hex[16]={'0','1','2','3','4','5','6','7',
'8','9','a','b','c','d','e','f'};
#include "isr.h"
#define NBYTES 1024
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__attribute__ ((section ("startup")))
void main(void) {
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nvmType_t type=0;
nvmErr_t err;
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uint32_t buf[NBYTES/4];
uint32_t i;
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*(volatile uint32_t *)GPIO_PAD_DIR0 = 0x00000100;
/* Restore UART regs. to default */
/* in case there is still bootloader state leftover */
reg(UART1_CON) = 0x0000c800; /* mask interrupts, 16 bit sample --- helps explain the baud rate */
/* INC = 767; MOD = 9999 works: 115200 @ 24 MHz 16 bit sample */
#define INC 767
#define MOD 9999
reg(UART1_BR) = INC<<16 | MOD;
/* see Section 11.5.1.2 Alternate Modes */
/* you must enable the peripheral first BEFORE setting the function in GPIO_FUNC_SEL */
/* From the datasheet: "The peripheral function will control operation of the pad IF */
/* THE PERIPHERAL IS ENABLED. */
reg(UART1_CON) = 0x00000003; /* enable receive and transmit */
reg(GPIO_FUNC_SEL0) = ( (0x01 << (14*2)) | (0x01 << (15*2)) ); /* set GPIO15-14 to UART (UART1 TX and RX)*/
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vreg_init();
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// puts("CRM status: 0x");
// put_hex32(reg(0x80003018));
// puts("\n\r");
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puts("Detecting internal nvm\n\r");
err = nvm_detect(gNvmInternalInterface_c, &type);
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puts("nvm_detect returned: 0x");
put_hex(err);
puts(" type is: 0x");
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put_hex32(type);
puts("\n\r");
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nvm_setsvar(0);
err = nvm_read(gNvmInternalInterface_c, type, (uint8_t *)buf, 0x1F000, NBYTES);
puts("nvm_read returned: 0x");
put_hex(err);
puts("\n\r");
for(i=0; i<NBYTES/4; i++) {
puts("0x");
put_hex32(buf[i]);
puts("\n\r");
}
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while(1) {continue;};
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}
void putc(uint8_t c) {
while(reg(UT1CON)==31); /* wait for there to be room in the buffer */
reg(UART1_DATA) = c;
}
void puts(uint8_t *s) {
while(s && *s!=0) {
putc(*s++);
}
}
void put_hex(uint8_t x)
{
putc(hex[x >> 4]);
putc(hex[x & 15]);
}
void put_hex16(uint16_t x)
{
put_hex((x >> 8) & 0xFF);
put_hex((x) & 0xFF);
}
void put_hex32(uint32_t x)
{
put_hex((x >> 24) & 0xFF);
put_hex((x >> 16) & 0xFF);
put_hex((x >> 8) & 0xFF);
put_hex((x) & 0xFF);
}