| Line 823... |
Line 823... |
void flash_read_finish(WORD n) {
|
void flash_read_finish(WORD n) {
|
while ( n > 32 ) {
|
while ( n > 32 ) {
|
mmc_clocks(0); // 256 clocks = 32 dummy bytes
|
mmc_clocks(0); // 256 clocks = 32 dummy bytes
|
n-=32;
|
n-=32;
|
}
|
}
|
mmc_clocks(n << 3);
|
if ( n>0) mmc_clocks(n << 3);
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mmc_clocks(16); // 16 CRC clocks
|
mmc_clocks(16); // 16 CRC clocks
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mmc_send_cmd(12, 0.0.0.0, 0); // stop transmission command, errors are ignored
|
mmc_send_cmd(12, 0.0.0.0, 0); // stop transmission command, errors are ignored
|
// mmc_wait_busy(); // not required here
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// mmc_wait_busy(); // not required here
|
mmc_clocks(8); // 8 dummy clocks
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mmc_clocks(8); // 8 dummy clocks
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mmc_deselect();
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mmc_deselect();
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| Line 888... |
Line 888... |
but do not write the finalization procedure. This is done by flash_write_finish
|
but do not write the finalization procedure. This is done by flash_write_finish
|
or flash_write_next, i.e. these functions must be called after flash_write_finish_sector.
|
or flash_write_next, i.e. these functions must be called after flash_write_finish_sector.
|
|
|
Between flash_write_finish / flash_write_next and flash_write_finish_sector some code
|
Between flash_write_finish / flash_write_next and flash_write_finish_sector some code
|
may be executed because flash_write_finish / flash_write_next start with
|
may be executed because flash_write_finish / flash_write_next start with
|
mmc_wauit_busy().
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mmc_wait_busy().
|
|
|
Returns an error code (FLASH_EC_*). 0 means no error.
|
Returns an error code (FLASH_EC_*). 0 means no error.
|
*/
|
*/
|
BYTE flash_write_finish_sector (WORD n) {
|
BYTE flash_write_finish_sector (WORD n) {
|
MMC_IO &= ~MMC_bmDI; // value of the dummy data is 0
|
MMC_IO &= ~MMC_bmDI; // value of the dummy data is 0
|
while ( n > 32 ) {
|
while ( n > 32 ) {
|
mmc_clocks(0); // 256 clocks = 32 dummy bytes
|
mmc_clocks(0); // 256 clocks = 32 dummy bytes
|
n-=32;
|
n-=32;
|
}
|
}
|
mmc_clocks(n << 3);
|
if ( n>0) mmc_clocks(n << 3);
|
|
|
MMC_IO |= MMC_bmDI;
|
MMC_IO |= MMC_bmDI;
|
mmc_clocks(16); // 16 CRC clocks
|
mmc_clocks(16); // 16 CRC clocks
|
|
|
if ( (flash_read_byte() & 0xf) != 5 ) { // data response: last four bits must be 5
|
if ( (flash_read_byte() & 0xf) != 5 ) { // data response: last four bits must be 5
|
| Line 944... |
Line 944... |
********************************************************************* */
|
********************************************************************* */
|
// init the card
|
// init the card
|
void flash_init() {
|
void flash_init() {
|
BYTE i, j, k;
|
BYTE i, j, k;
|
|
|
|
#ifeq[UFM_1_15X_DETECTION_ENABLED][1]
|
|
if ( is_ufm_1_15x ) {
|
|
flash_enabled = 0;
|
|
flash_ec = FLASH_EC_NOTSUPPORTED;
|
|
return;
|
|
}
|
|
#endif
|
|
|
flash_enabled = 1;
|
flash_enabled = 1;
|
flash_sector_size = 512;
|
flash_sector_size = 512;
|
mmc_version = 0;
|
mmc_version = 0;
|
|
|
OEMMC_PORT = OEMMC_PORT | ( MMC_bmCS | MMC_bmDI | MMC_bmCLK );
|
OEMMC_PORT = OEMMC_PORT | ( MMC_bmCS | MMC_bmDI | MMC_bmCLK );
|
