osd-contiki/tests/nvm-write.c
2010-02-26 13:03:37 -05:00

122 lines
2.7 KiB
C

#include <mc1322x.h>
#include <board.h>
#include <uart1.h>
#include <nvm.h>
/* INC = 767; MOD = 9999 works: 115200 @ 24 MHz 16 bit sample */
#define INC 767
#define MOD 9999
#define NBYTES 8
#define WRITE_ADDR 0x1e000
#define WRITEVAL0 0xdeadbeef
#define WRITEVAL1 0xdeadbeef
void putc(char c);
void puts(char *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'};
void main(void) {
nvmType_t type=0;
nvmErr_t err;
uint32_t buf[NBYTES/4];
uint32_t i;
*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
*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. */
*UART1_CON = 0x00000003; /* enable receive and transmit */
*GPIO_FUNC_SEL0 = ( (0x01 << (14*2)) | (0x01 << (15*2)) ); /* set GPIO15-14 to UART (UART1 TX and RX)*/
vreg_init();
puts("Detecting internal nvm\n\r");
err = nvm_detect(gNvmInternalInterface_c, &type);
puts("nvm_detect returned: 0x");
put_hex(err);
puts(" type is: 0x");
put_hex32(type);
puts("\n\r");
buf[0] = WRITEVAL0;
buf[1] = WRITEVAL1;
err = nvm_erase(gNvmInternalInterface_c, type, 0x40000000); /* erase sector 30 --- sector 31 is the 'secret zone' */
puts("nvm_erase returned: 0x");
put_hex(err);
puts("\n\r");
err = nvm_write(gNvmInternalInterface_c, type, (uint8_t *)buf, WRITE_ADDR, NBYTES);
puts("nvm_write returned: 0x");
put_hex(err);
puts("\n\r");
puts("writing\n\r");
for(i=0; i<NBYTES/4; i++) {
puts("0x");
put_hex32(buf[i]);
puts("\n\r");
buf[i] = 0x00000000; /* clear buf for the read */
}
err = nvm_read(gNvmInternalInterface_c, type, (uint8_t *)buf, WRITE_ADDR, NBYTES);
puts("nvm_read returned: 0x");
put_hex(err);
puts("\n\r");
puts("reading\n\r");
for(i=0; i<NBYTES/4; i++) {
puts("0x");
put_hex32(buf[i]);
puts("\n\r");
}
while(1) {continue;};
}
void putc(char c) {
while(*UT1CON == 31); /* wait for there to be room in the buffer */
*UART1_DATA = c;
}
void puts(char *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);
}