kopia lustrzana https://github.com/stlink-org/stlink
While L1 has empty flash cell erased to zero, at least F1/F4 are erased to 0xff.
rodzic
379fcb3c61
commit
6ab0eb83be
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@ -803,7 +803,8 @@ int stlink_fread(stlink_t* sl, const char* path, stm32_addr_t addr, size_t size)
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int error = -1;
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size_t off;
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int num_zero = 0;
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int num_empty = 0;
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unsigned char erased_pattern =(sl->chip_id == STM32_CHIPID_L1_MEDIUM)?0:0xff;
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const int fd = open(path, O_RDWR | O_TRUNC | O_CREAT, 00700);
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if (fd == -1) {
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@ -827,10 +828,10 @@ int stlink_fread(stlink_t* sl, const char* path, stm32_addr_t addr, size_t size)
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stlink_read_mem32(sl, addr + off, rounded_size);
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for(index = 0; index < read_size; index ++) {
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if (sl->q_buf[index] == 0)
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num_zero ++;
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if (sl->q_buf[index] == erased_pattern)
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num_empty ++;
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else
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num_zero = 0;
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num_empty = 0;
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}
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if (write(fd, sl->q_buf, read_size) != (ssize_t) read_size) {
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fprintf(stderr, "write() != read_size\n");
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@ -839,7 +840,7 @@ int stlink_fread(stlink_t* sl, const char* path, stm32_addr_t addr, size_t size)
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}
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/* Ignore NULL Bytes at end of file */
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ftruncate(fd, size - num_zero);
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ftruncate(fd, size - num_empty);
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/* success */
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error = 0;
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@ -1420,21 +1421,22 @@ int stlink_write_flash(stlink_t *sl, stm32_addr_t addr, uint8_t* base, unsigned
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int stlink_fwrite_flash(stlink_t *sl, const char* path, stm32_addr_t addr) {
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/* write the file in flash at addr */
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int err;
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unsigned int num_zero = 0, index;
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unsigned int num_empty = 0, index;
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unsigned char erased_pattern =(sl->chip_id == STM32_CHIPID_L1_MEDIUM)?0:0xff;
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mapped_file_t mf = MAPPED_FILE_INITIALIZER;
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if (map_file(&mf, path) == -1) {
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WLOG("map_file() == -1\n");
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return -1;
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}
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for(index = 0; index < mf.len; index ++) {
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if (mf.base[index] == 0)
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num_zero ++;
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if (mf.base[index] == erased_pattern)
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num_empty ++;
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else
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num_zero = 0;
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num_empty = 0;
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}
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if(num_zero != 0) {
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ILOG("Ignoring %d bytes of Zeros at end of file\n",num_zero);
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mf.len -= num_zero;
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if(num_empty != 0) {
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ILOG("Ignoring %d bytes of Zeros at end of file\n",num_empty);
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mf.len -= num_empty;
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}
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err = stlink_write_flash(sl, addr, mf.base, mf.len);
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unmap_file(&mf);
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