/* Initialize nand flash access */
hndsflash_t *
hndsflash_init(si_t *sih)
{
uint32 origidx;
ASSERT(sih);
/* Already initialized ? */
if (hndsflash)
return hndsflash;
/* spin lock here */
origidx = si_coreidx(sih);
#ifdef __mips__
if (!hndsflash)
hndsflash = ccsflash_init(sih);
#endif /* __mips__ */
#ifdef __ARM_ARCH_7A__
if (!hndsflash)
hndsflash = spiflash_init(sih);
#endif /* __ARM_ARCH_7A__ */
si_setcoreidx(sih, origidx);
return hndsflash;
}
int main(int argc, char **argv) {
/* initialize interrupt handling */
VIDEOIF->flags = 0;
IRQController->Enable = IRQ_FLAG_VSYNC | IRQ_FLAG_PAD | IRQ_FLAG_GLOBALEN;
VIDEOIF->settings = VIDEOIF_SET_CABLEDETECT; // temporary during init
/* run initializations */
settings_init();
osd_init();
spiflash_init();
VIDEOIF->settings = video_settings[current_videomode];
VIDEOIF->osd_bg = osdbg_settings;
while (1) {
screen_idle();
screen_mainmenu();
}
}
/***************************************************************************//**
* @brief
* Serial Output Demo, Prints out Data Wrote and Read back from Device
*
******************************************************************************/
void demo_serial(void)
{
int i;
int hex_dump_size = 256;
CMU_ClockEnable(cmuClock_CORELE, true);
CMU_ClockSelectSet(cmuClock_LFA, cmuSelect_LFXO);
CMU_ClockSelectSet(cmuClock_LFB, cmuSelect_LFXO);
serial_init(9600,
raw_serial_rx_buf, sizeof(raw_serial_rx_buf),
raw_serial_tx_buf, sizeof(raw_serial_tx_buf));
printf("\r\nEmbedded Masters SPI Flash Demo\r\n");
if (! spiflash_init(2000000))
{
printf("SPI flash failed to initialize\r\n");
while(true)
;
}
get_status();
printf("reading\r\n");
spiflash_read(0x00000, sizeof(buf1), buf1, NULL, NULL);
printf("read done\r\n");
serial_tx_flush();
printf("data read");
if (hex_dump_size != sizeof(buf1))
printf(", first %d bytes", hex_dump_size);
printf (":\r\n");
hex_dump(buf1, hex_dump_size, 0);
serial_tx_flush();
printf("erasing\r\n");
spiflash_erase(0x00000, sizeof(buf1), 0, true, NULL, NULL);
printf("erase done\r\n");
serial_tx_flush();
get_status();
printf("setting buffer to increment from %02x\r\n", buf1[0]+1);
buf2[0]++;
for (i = 1; i < sizeof(buf2); i++)
buf2[i] = buf2[i-1] + 1;
serial_tx_flush();
write_enable();
printf("setting sector unprotect\r\n");
spiflash_set_sector_protection(false, 0x00000, NULL, NULL);
get_status();
printf("writing\r\n");
serial_tx_flush();
spiflash_write(0x00000, sizeof(buf2), buf2, true, NULL, NULL);
printf("write done\r\n");
serial_tx_flush();
get_status();
printf("reading\r\n");
serial_tx_flush();
spiflash_read(0x00000, sizeof(buf3), buf3, NULL, NULL);
printf("read done\r\n");
serial_tx_flush();
printf("data read");
if (hex_dump_size != sizeof(buf1))
printf(", first %d bytes", hex_dump_size);
printf (":\r\n");
serial_tx_flush();
hex_dump(buf3, hex_dump_size, 0);
spiflash_ultra_deep_power_down(true, NULL, NULL);
serial_tx_flush();
serial_close();
}
