Ctrl_status at25dfx_df_2_ram(U32 addr, void *ram)
{
if (addr + 1 > AT25DFX_NSECT) {
return CTRL_FAIL;
}
at25dfx_read(ram, SECTOR_SIZE, addr * SECTOR_SIZE);
return CTRL_GOOD;
}
Ctrl_status at25dfx_usb_read_10(U32 addr, U16 nb_sector)
{
if (addr + nb_sector > AT25DFX_NSECT)
return CTRL_FAIL;
for (; nb_sector; --nb_sector, addr++) {
uint8_t *blkptr;
if (addr < FIRST_BLK)
blkptr = layfs_256_img + addr * SECTOR_SIZE;
else {
// Read the next sector.
if (at25dfx_read(sector_buf, SECTOR_SIZE,
(addr - FIRST_BLK) * SECTOR_SIZE) != AT25_SUCCESS)
return CTRL_FAIL;
blkptr = sector_buf;
}
if (!udi_msc_trans_block(true, blkptr, SECTOR_SIZE, 0))
return CTRL_FAIL;
}
return CTRL_GOOD;
}
/**
* \brief Application entry point for AT25DFx example.
*
* \return Unused (ANSI-C compatibility).
*/
int main(void)
{
uint16_t i;
sysclk_init();
board_init();
/* Initialize the SerialFlash */
at25dfx_initialize();
/* Set the SerialFlash active */
at25dfx_set_mem_active(AT25DFX_MEM_ID);
/* Unprotect the chip */
if (at25dfx_protect_chip(AT25_TYPE_UNPROTECT) == AT25_SUCCESS) {
LED_On(DATA_FLASH_LED_EXAMPLE_0);
} else {
test_ko();
}
/* Check if the SerialFlash is valid */
if (at25dfx_mem_check() == AT25_SUCCESS) {
LED_On(DATA_FLASH_LED_EXAMPLE_0);
} else {
test_ko();
}
/* Prepare half of the SerialFlash sector as 0xAA */
for (i = 0; i < AT25DFX_TEST_DATA_SIZE / 2; i++) {
ram_buff[i] = 0xAA;
}
/* And the remaining half as 0x55 */
for (; i < AT25DFX_TEST_DATA_SIZE; i++) {
ram_buff[i] = 0x55;
}
/* Erase the block before write */
at25dfx_erase_block(AT25DFX_TEST_BLOCK_ADDR);
/* Write the data to the SerialFlash */
at25dfx_write(ram_buff, AT25DFX_TEST_DATA_SIZE, AT25DFX_TEST_BLOCK_ADDR);
/* Read back this sector and compare them with the expected values */
at25dfx_read(ram_buff, AT25DFX_TEST_DATA_SIZE, AT25DFX_TEST_BLOCK_ADDR);
for (i = 0; i < AT25DFX_TEST_DATA_SIZE / 2; i++) {
if (ram_buff[i] != 0xAA) {
test_ko();
}
}
for (; i < AT25DFX_TEST_DATA_SIZE; i++) {
if (ram_buff[i] != 0x55) {
test_ko();
}
}
/* Write one SerialFlash sector as 0x00, 0x01 .... */
for (i = 0; i < AT25DFX_TEST_DATA_SIZE; i++) {
ram_buff[i] = i;
}
/* Erase the block before write */
at25dfx_erase_block(AT25DFX_TEST_BLOCK_ADDR);
/* Write the data to the SerialFlash */
at25dfx_write(ram_buff, AT25DFX_TEST_DATA_SIZE, AT25DFX_TEST_BLOCK_ADDR);
/* Read back this sector and compare them with the expected values */
at25dfx_read(ram_buff, AT25DFX_TEST_DATA_SIZE, AT25DFX_TEST_BLOCK_ADDR);
for (i = 0; i < AT25DFX_TEST_DATA_SIZE; i++) {
if (ram_buff[i] != (i % 0x100)) {
test_ko();
}
}
LED_On(DATA_FLASH_LED_EXAMPLE_1);
while (1);
}
/**
* \brief Test data read, write and erase API functions.
*
* This test calls the data chip erase, read, write and block erase API
* functions.
*
* \param test Current test case.
*/
static void run_test_at25dfx_data_access(const struct test_case *test)
{
at25_status_t status;
uint32_t i;
uint32_t page_num = 0;
/* Unprotect the SerialFlash first */
at25dfx_protect_chip(AT25_TYPE_UNPROTECT);
/* Test block erase */
i = 0;
page_num = 0;
status = at25dfx_erase_block(AT25DFX_UNIT_TEST_BLOCK_ADDR);
while (page_num <
AT25DFX_UNIT_TEST_BLOCK_SIZE / AT25DFX_UNIT_TEST_PAGE_SIZE) {
memset(data_buff, 0x0, sizeof(data_buff));
at25dfx_read(data_buff, AT25DFX_UNIT_TEST_PAGE_SIZE,
page_num * AT25DFX_UNIT_TEST_PAGE_SIZE);
for (i = 0; i < AT25DFX_UNIT_TEST_PAGE_SIZE; i++) {
if (data_buff[i] != 0xff) {
status = AT25_ERROR;
}
}
page_num++;
}
/* Validate the SerialFlash block erase function */
test_assert_true(test, status == AT25_SUCCESS, "Block erase failed!");
/* Test read/write function */
i = 0;
page_num = 0;
while (page_num <
AT25DFX_UNIT_TEST_BLOCK_SIZE / AT25DFX_UNIT_TEST_PAGE_SIZE) {
for (i = 0; i < AT25DFX_UNIT_TEST_PAGE_SIZE; i++) {
data_buff[i] = i & 0xff;
}
at25dfx_write(data_buff, AT25DFX_UNIT_TEST_PAGE_SIZE,
page_num * AT25DFX_UNIT_TEST_PAGE_SIZE);
/* Reset the data buffer */
memset(data_buff, 0x0, sizeof(data_buff));
status = at25dfx_read(data_buff, AT25DFX_UNIT_TEST_PAGE_SIZE,
page_num * AT25DFX_UNIT_TEST_PAGE_SIZE);
for (i = 0; i < AT25DFX_UNIT_TEST_PAGE_SIZE; i++) {
if (data_buff[i] != (i & 0xff)) {
status = AT25_ERROR;
break;
}
}
page_num++;
}
/* Validate the SerialFlash write function */
test_assert_true(test, status == AT25_SUCCESS, "Write operation failed!");
}