rfidrig/ChameleonUltra
0
0
Fork 0
mirror of https://github.com/RfidResearchGroup/ChameleonUltra.git synced 2026-05-12 11:22:59 -07:00
Code Issues Packages Projects Releases Wiki Activity

Fix NTAG INCR_CNT command byte order.

Browse Source
This commit is contained in:
turbocool3r
2024-07-03 02:45:45 +03:00
parent 1c14fc00b2
commit a283795f07
1 changed files with 4 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files
firmware/application/src/rfid/nfctag/hf/nfc_mf0_ntag.c
+4 -4
View File
@@ -733,15 +733,15 @@ static void handle_incr_cnt_command(uint8_t block_num, uint8_t *p_data) {
}
uint8_t *cnt_data = m_tag_information->memory[ctr_page_off + block_num];
uint32_t incr_value = ((uint32_t)p_data[0]) | ((uint32_t)p_data[1] << 8) | ((uint32_t)p_data[2] << 16);
uint32_t cnt = ((uint32_t)cnt_data[0]) | ((uint32_t)cnt_data[1] << 8) | ((uint32_t)cnt_data[2] << 16);
uint32_t incr_value = ((uint32_t)p_data[0] << 16) | ((uint32_t)p_data[1] << 8) | ((uint32_t)p_data[2]);
uint32_t cnt = ((uint32_t)cnt_data[0] << 16) | ((uint32_t)cnt_data[1] << 8) | ((uint32_t)cnt_data[2]);
if ((0xFFFFFF - cnt) < incr_value) cnt = 0xFFFFFF;
else cnt += incr_value;
cnt_data[0] = (uint8_t)(cnt & 0xff);
cnt_data[0] = (uint8_t)(cnt >> 16);
cnt_data[1] = (uint8_t)(cnt >> 8);
cnt_data[2] = (uint8_t)(cnt >> 16);
cnt_data[2] = (uint8_t)(cnt & 0xff);
nfc_tag_14a_tx_nbit(ACK_VALUE, 4);
}