//! \brief Read the ID of the Nand-Flash and update the global variable
//!
//! \return :
//! nf index of listing "nf_listing"
//! otherwise : NO_NF_CONNECTED or NF_UNKNOW
//!
U8 nfc_detect( void )
{
U32 u32_nf_ids;
U8 u8_i, u8_conf;
// Init the Nand Flash Controller
nf_init( NF_MAX_DEVICES, 0 );
nf_reset_nands( NF_MAX_DEVICES ); // Reset all the NF devices
// Check the presence of device 0
if ( false == nfc_nf_is_ready() )
return NO_NF_CONNECTED;
// Read the Nand Flash IDs of device 0
u32_nf_ids = nf_read_id( NF_READ_ID_CMD, 0 );
// Identify the Nand Flash (device 0)
for( u8_i=0 ; u8_i < (sizeof(nf_list_id)/sizeof(St_nf_id)) ; u8_i++)
{
if((nf_list_id[u8_i].manuf == MSB0(u32_nf_ids))
&& (nf_list_id[u8_i].dev == MSB1(u32_nf_ids)))
break; // here, ID is know
}
if( u8_i == (sizeof(nf_list_id)/sizeof(St_nf_id)) )
return NF_UNKNOW;
// Set NF configuration parameters for initialisation and access
#if (NF_GENERIC_DRIVER==true)
# error Test me...
g_shift_page_byte =;
g_shift_block_page =;
#endif
#if (NF_GENERIC_DRIVER==true) || (NF_AUTO_DETECT_2KB==true) ||(NF_AUTO_DETECT_512B==true)
// Record info
u8_conf = nf_list_id[u8_i].conf;
g_dev_maker = MSB0(u32_nf_ids); // Device maker
g_dev_id = MSB1(u32_nf_ids); // Device ID
// Search the number of block of device
for( u8_i=0 ; u8_i < (sizeof(nf_list_link_id_block)/sizeof(St_nf_link_id_block)) ; u8_i++)
{
if( nf_list_link_id_block[u8_i].dev_id == g_dev_id )
break; // ID found
}
if( u8_i == (sizeof(nf_list_link_id_block)/sizeof(St_nf_link_id_block)) )
while(1); // Error in NF definition
g_n_zones = nf_list_link_id_block[u8_i].nb_zones;
#if (NF_AUTO_DETECT_2KB==true)
if( 1 == g_n_zones )
g_n_row_cycles = 2;
else
g_n_row_cycles = 3;
#endif
#if (NF_AUTO_DETECT_512B==true)
if( 2 >= g_n_zones )
g_n_row_cycles = 2;
else
g_n_row_cycles = 3;
#endif
g_n_blocks = g_n_zones*1024L;
g_copy_back_cont = nf_list_conf[u8_conf].copy_back_cont ;
g_copy_back_discont = nf_list_conf[u8_conf].copy_back_discont;
g_cache_program = nf_list_conf[u8_conf].cache_program ;
g_ce_low = nf_list_conf[u8_conf].ce_low;
g_clock_dfc_nfc = (nf_list_conf[u8_conf].dfc_nfc_clock<<5) & MSK_DNFCKS;
Nfc_set_read_timing((U8)nf_list_conf[u8_conf].timing_read );
if( g_ce_low )
{
nf_force_CE();
}
#endif
return u8_i;
}
// main function
int main(void)
{
bool valid_block_found[NF_N_DEVICES];
U32 u32_nf_ids, i_dev, i_block;
U8 maker_id, device_id;
U32 i, j;
// ECCHRS options.
static const ecchrs_options_t ECCHRS_OPTIONS =
{
.typecorrect = ECCHRS_TYPECORRECT_4_BIT,
.pagesize = ECCHRS_PAGESIZE_4_BIT_2112_W
};
// switch to oscillator 0
pcl_switch_to_osc(PCL_OSC0, FOSC0, OSC0_STARTUP);
// init debug serial interface
init_dbg_rs232(FOSC0);
nf_init(FOSC0); // init the nand flash driver with the correct HSB frequency
nf_unprotect();
print_dbg("\r\nECCHRS example using Nand Flash.\r\n================================\r\n\r\n");
// - Simple test of the NF communication through the SMC.
// - Find all bad blocks.
// - Find a valid block for the remaining tests.
nf_reset_nands(NF_N_DEVICES);
print_dbg("\tCPU, HSB is at 12000000Mhz.\r\n");
print_dbg("\tPBA, PBB is at 12000000Mhz.\r\n");
print_dbg("\tDetecting Nand Flash device(s).\r\n");
for( i_dev=0 ; i_dev<NF_N_DEVICES ; i_dev++ )
{
// Performs some init here...
valid_block_found[i_dev] = false;
// Test Maker and Device ids
u32_nf_ids = nf_read_id( NF_READ_ID_CMD, i_dev );
maker_id = MSB0(u32_nf_ids);
device_id = MSB1(u32_nf_ids);
print_dbg("\t\tNF");
print_dbg_hex(i_dev);
print_dbg(" [Maker=");
print_dbg_hex(maker_id);
print_dbg("] [Device=");
print_dbg_hex(device_id);
print_dbg("]\r\n");
if( maker_id==M_ID_MICRON )
{
print_dbg("\t\t Micron chip");
if( device_id==0xDA ){
print_dbg("- MT29F2G08AACWP device\r\n");
}
else
{
print_dbg("- *** Error: unexpected chip detected. Please check the board settings and hardware.\r\n");
return -1;
}
}
else
{
print_dbg("\t\t *** Error: unexpected chip detected. Please check the board settings and hardware.\r\n");
return -1;
}
}
// Looking for valid blocks for the test.
for( i_dev=0 ; i_dev<NF_N_DEVICES ; i_dev++ )
{
nf_select(i_dev);
for( i_block=0 ; i_block<G_N_BLOCKS ; i_block++ )
{
nf_open_page_read( nf_block_2_page(i_block), NF_SPARE_POS + G_OFST_BLK_STATUS );
if( (nf_rd_data()==0xFF) )
{ // The block is valid.
print_dbg("\tValid block found (");
print_dbg_ulong(i_block);
print_dbg(") on NF ");
print_dbg_hex(i_dev);
print_dbg("\r\n");
valid_block_found[i_dev]= true;
valid_block_addr[i_dev] = i_block;
break;
}
}
}
for( i_dev=0 ; i_dev<NF_N_DEVICES ; i_dev++ )
if( !valid_block_found[i_dev] )
{
print_dbg("Error: no valid blocks found.\r\n");
return 0;
}
print_dbg("\tECCHRS IP ver ");
print_dbg_ulong(ecchrs->version);
print_dbg("(");
print_dbg_hex(ecchrs->version);
print_dbg(")");
print_dbg("\r\n");
// Work with NF 0 from now...
nf_select(0);
// Setup the ECCHRS.
ecchrs_init(&AVR32_ECCHRS, &ECCHRS_OPTIONS);
// Ensures that the block is erased for the test.
print_dbg("\tErasing a free block for the test.\r\n");
nf_erase_block(nf_block_2_page(valid_block_addr[0]), false);
// Reset the ECCHRS state machine.
ecchrs_reset(&AVR32_ECCHRS);
// Program a simple patterns in the first page.
print_dbg("\tProgramming the first page with a simple pattern.\r\n");
nf_open_page_write( nf_block_2_page(valid_block_addr[0]), 0);
for ( i = 0; i < 2048/2; i++ )
{
U16 val = i;
nf_wr_data(MSB(val));
nf_wr_data(LSB(val));
}
// Extract the ECCs and store them at the end of the page.
// [2054; 2063]: codeword 0:9
// [2070; 2079]: codeword 10:19
// [2086; 2095]: codeword 20:29
// [2102; 2111]: codeword 30:39
// Since we use the Random Data Output command, we need to freeze
// the ECCHRS in order to keep our ECC codewords unchanged.
print_dbg("\tExtracting the ECCHRS codewords and store them in the page.\r\n");
ecchrs_freeze(&AVR32_ECCHRS); // not needed if ECCHRS reaches the end of page.
for ( i=0 ; i<4 ; i++ )
{
U16 offset = 2048+6+16*i;
nf_wr_cmd(NF_RANDOM_DATA_INPUT_CMD);
nf_wr_addr( LSB(offset) );
nf_wr_addr( MSB(offset) );
for ( j=0 ; j<10 ; j++ )
nf_wr_data( ecchrs_get_cw(&AVR32_ECCHRS, i*10+j) );
}
ecchrs_unfreeze(&AVR32_ECCHRS);
nf_wr_cmd(NF_PAGE_PROGRAM_CMD);
// Now let's test the ECC verification.
print_dbg("\tReading the first page.\r\n");
nf_open_page_read( nf_block_2_page(valid_block_addr[0]), 0);
for( i=0 ; i<2048 ; i++ )
nf_rd_data();
print_dbg("\tChecking if the data are valid thanks to the ECCHRS codewords.\r\n");
for ( i=0 ; i<4 ; i++ )
{
U16 offset = 2048+6+16*i;
ecchrs_freeze(&AVR32_ECCHRS);
nf_wr_cmd(NF_RANDOM_READ_CMD_C1);
nf_wr_addr( LSB(offset) );
nf_wr_addr( MSB(offset) );
nf_wr_cmd(NF_RANDOM_READ_CMD_C2);
ecchrs_unfreeze(&AVR32_ECCHRS);
for ( j=0 ; j<10 ; j++ )
nf_rd_data();
}
// Check if there is any errors after the read of the page.
i = ecchrs_4bit_check_error(&AVR32_ECCHRS);
print_dbg("\tSR1 is ");
print_dbg_ulong(i);
print_dbg("(");
print_dbg_hex(i);
print_dbg(")");
print_dbg("\r\n");
if(i&(15))
{
print_dbg("\tERROR: ECCHRS detects some errors in the sectors 1, 2, 3 or 4\r\n");
}
else
print_dbg("\tNo error detected.\r\n");
// Let the block free.
nf_erase_block(nf_block_2_page(valid_block_addr[0]), false);
return 0;
}
/*! \brief Main function.
*/
int main(void)
{
bool valid_block_found[NF_N_DEVICES];
U32 u32_nf_ids, i_dev, i_block;
U8 maker_id, device_id, byte3;
U32 i, time_s, time_e;
U8 data;
// start init
sysclk_init();
// Enable clock for require module
sysclk_enable_hsb_module(SYSCLK_EBI);
sysclk_enable_pbb_module(SYSCLK_SMC_REGS);
sysclk_enable_pbb_module(SYSCLK_HMATRIX);
// Initialize the board.
// The board-specific conf_board.h file contains the configuration of the board
// initialization.
board_init();
init_stdio();
#ifdef NF_ADDON // addon nandflash board for EVK1104 (not mounted by default)
// Unselect NF on board
gpio_set_gpio_pin(AVR32_PIN_PX53);
gpio_set_gpio_pin(AVR32_PIN_PX52);
#endif
nf_init(sysclk_get_cpu_hz());
nf_unprotect();
printf("\x0C");
printf("Nand Flash example.\r\n===================\r\n\r\n");
// - Simple test of the NF communication through the SMC.
// - Find all bad blocks.
// - Find a valid block for the remaining tests.
nf_reset_nands(NF_N_DEVICES);
printf("\tDetecting Nand Flash device(s).\r\n");
for( i_dev=0 ; i_dev<NF_N_DEVICES ; i_dev++ )
{
// Performs some init here...
valid_block_found[i_dev] = false;
// Test Maker and Device ids
u32_nf_ids = nf_read_id( NF_READ_ID_CMD, i_dev );
maker_id = MSB0(u32_nf_ids);
device_id = MSB1(u32_nf_ids);
byte3 = MSB3(u32_nf_ids);
printf("\t\tNF %ld: [Maker=0x%02x] [Device=0x%02x] [byte3=0x%02x]\r\n", i_dev, maker_id, device_id, byte3);
if( maker_id==M_ID_MICRON )
{
printf("\t\t Micron chip");
if( (device_id==0xDA) && (byte3==0x15) )
printf("- MT29F2G08AACWP device\r\n");
else if( (device_id==0xDA) && (byte3==0x95) )
printf("- MT29F2G08AADWP device\r\n");
else
{
printf("- *** Error: unexpected chip detected. Please check the board settings and hardware.\r\n");
return -1;
}
}
else
{
printf("\t\t *** Error: unexpected chip detected. Please check the board settings and hardware.\r\n");
return -1;
}
}
printf("\r\n\tTesting bad blocks.\r\n");
for( i_dev=0 ; i_dev<NF_N_DEVICES ; i_dev++ )
{
printf("\t\tNF %ld:\r\n", i_dev);
nf_select(i_dev);
for( i_block=0 ; i_block<G_N_BLOCKS ; i_block++ )
{
nf_open_page_read( nf_block_2_page(i_block), NF_SPARE_POS + G_OFST_BLK_STATUS );
if( (nf_rd_data()!=0xFF) )
{ // The block is bad.
printf("\t\t\tBlock %ld (0x%lx) is bad.\r\n", i_block, i_block);
}
else
{
if( !valid_block_found[i_dev] )
{
valid_block_found[i_dev]= true;
valid_block_addr[i_dev] = i_block;
printf("\t\t\tFirst valid block is at address %ld (0x%lx).\r\n", i_block, i_block);
}
}
}
}
for( i_dev=0 ; i_dev<NF_N_DEVICES ; i_dev++ )
if( !valid_block_found[i_dev] )
{
printf("Error %d\r\n", __LINE__);
return 0;
}
// - Ensure good NF behaviour through simple commands.
// Erase, Program, Read
// - Measures NF timings.
printf("\r\n\tMeasuring NF timings.\r\n");
for( i_dev=0 ; i_dev<NF_N_DEVICES ; i_dev++ )
{
printf("\t\tNF %ld:\r\n", i_dev);
nf_select(i_dev);
nf_erase_block( nf_block_2_page(valid_block_addr[0]), false);
time_s = Get_sys_count();
nf_wait_busy();
time_e = Get_sys_count();
// Verify that the block is erased.
nf_open_page_read( nf_block_2_page(valid_block_addr[0]), 0);
for( i= 0; i<2048 ; i++ )
{
data = nf_rd_data();
if( data!=0xFF )
{
printf("\tError: offset %d is not erased (read %d).\r\n", (U8)i, data);
return 0;
}
}
printf("\t\t\tTime to erase a page:%ld cy (%ld us)\r\n", time_e-time_s, cpu_cy_2_us(time_e-time_s, sysclk_get_cpu_hz()));
nf_open_page_write( nf_block_2_page(valid_block_addr[0]), 0);
for( i=0 ; i<2048 ; i++ )
nf_wr_data(i%256);
nf_wr_cmd(NF_PAGE_PROGRAM_CMD);
time_s = Get_sys_count();
nf_wait_busy();
time_e = Get_sys_count();
printf("\t\t\tTime to program a page:%ld cy (%ld us)\r\n", time_e-time_s, cpu_cy_2_us(time_e-time_s, sysclk_get_cpu_hz()));
time_s = Get_sys_count();
nf_open_page_read( nf_block_2_page(valid_block_addr[0]), 0);
time_e = Get_sys_count();
printf("\t\t\tTime to access to a page:%ld cy (%ld us)\r\n", time_e-time_s, cpu_cy_2_us(time_e-time_s, sysclk_get_cpu_hz()));
for( i= 0; i<2048 ; i++ )
{
data = nf_rd_data();
if( data!= i%256)
{
printf("\tError: expect %d, read %d\r\n", (U8)i, data);
return 0;
}
}
}
printf("Example DONE\r\n");
return 0;
}