[问答]

ST25R911B阅读器和ST25DV04K标签之间如何建立通信呢

问答对人有帮助，内容完整，我也想知道答案 0 大家好，我需要你的帮助：我想在 ST25R911B 阅读器和 ST25DV04K 标签之间建立通信。我能够将数据从阅读器写入转发器，并且还得到一个中断 (XYZ)。现在我想回答读者。我通过 I2C 将数据写入邮箱。当读者阅读邮箱时，我收到超时或无效请求错误。标签代码：初始化： void MX_NFC_Init(void) { const ST25DV_PASSWD st25dv_i2c_password = {.MsbPasswd = 0, .LsbPasswd=0}; char txtbuf[] = "Initialize NFC-TagrnReset Mailbox and allow write to EEPROMrn Select NFC Type 5rn"; HAL_UART_Transmit(&huart2, (uint8_t) txtbuf, sizeof(txtbuf), 100); / Init ST25DV driver / while( NFC04A1_NFCTAG_Init(NFC04A1_NFCTAG_INSTANCE) != NFCTAG_OK ); / Init GPO / MX_NFC04A1_GPO_Init(); ST25DV_EN_STATUS MB_mode; / If not activated, activate Mailbox, as long as MB is ON EEPROM is not available / NFC04A1_NFCTAG_ReadMBMode(NFC04A1_NFCTAG_INSTANCE, &MB_mode); if( MB_mode == ST25DV_DISABLE ) { ST25DV_I2CSSO_STATUS i2csso; ST25DV_PASSWD passwd; / You need to present password before changing static configuration / NFC04A1_NFCTAG_ReadI2CSecuritySession_Dyn(NFC04A1_NFCTAG_INSTANCE, &i2csso ); if( i2csso == ST25DV_SESSION_CLOSED ) { / if I2C session is closed, present password to open session / passwd.MsbPasswd = 0; / Default value for password / passwd.LsbPasswd = 0; / change it if password has been modified / NFC04A1_NFCTAG_PresentI2CPassword(NFC04A1_NFCTAG_INSTANCE, passwd ); } NFC04A1_NFCTAG_WriteMBMode(NFC04A1_NFCTAG_INSTANCE,ST25DV_ENABLE); /enable interrupts (I2C Protection) / NFC04A1_NFCTAG_ConfigIT(NFC04A1_NFCTAG_INSTANCE, ( ST25DV_GPO_FIELDCHANGE_MASK \| ST25DV_GPO_RFPUTMSG_MASK \| ST25DV_GPO_RFGETMSG_MASK \| ST25DV_GPO_ENABLE_MASK ) ); / Close session as dynamic register doesn't need open session for modification / passwd.MsbPasswd = 123; passwd.LsbPasswd = 123; NFC04A1_NFCTAG_PresentI2CPassword(NFC04A1_NFCTAG_INSTANCE, passwd ); } / Enable Mailbox in dynamique register / NFC04A1_NFCTAG_SetMBEN_Dyn(NFC04A1_NFCTAG_INSTANCE); / Check if Mailbox is available / NFC04A1_NFCTAG_ReadMBCtrl_Dyn( NFC04A1_NFCTAG_INSTANCE,&mbctrldynstatus ); NfcTag_SelectProtocol(NFCTAG_TYPE5); / Check if no NDEF detected, init mem in Tag Type 5 / if( NfcType5_NDEFDetection( ) != NDEF_OK ) { CCFileStruct.MagicNumber = NFCT5_MAGICNUMBER_E1_CCFILE; CCFileStruct.Version = NFCT5_VERSION_V1_0; CCFileStruct.MemorySize = ( ST25DV_MAX_SIZE / 8 ) & 0xFF; CCFileStruct.TT5Tag = 0x05; char txtbuf1[] = {"Initialization NFC Type5 Protocolrn"}; HAL_UART_Transmit(&huart2, (uint8_t) txtbuf, sizeof(txtbuf), 100); /* Init of the Type Tag 5 component (M24LR) / while( NfcType5_TT5Init( ) != NFCTAG_OK ); } } 处理传入的 GPO（GPOActivated 在 GPO 回调中设置）* void MX_NFC4_NDEF_Process(void) { ST25DV_FIELD_STATUS FieldStatus; uint8_t ITStatus; /* recognized interrupt / if( GPOActivated == 1 ) { / check if RF-Field changed / //check return if always on or only at beginning NFC04A1_NFCTAG_GetRFField_Dyn(NFC04A1_NFCTAG_INSTANCE, &FieldStatus ); / get all other interrput sources / NFC04A1_NFCTAG_ReadITSTStatus_Dyn(NFC04A1_NFCTAG_INSTANCE, &ITStatus); if( ITStatus == ST25DV_ITSTS_DYN_RFGETMSG_MASK) { / read mailbox / HAL_UART_Transmit(&huart2, "message getrn", 13, 50 ); HAL_Delay(10); } if( ITStatus == ST25DV_ITSTS_DYN_RFPUTMSG_MASK) { / read mailbox / HAL_UART_Transmit(&huart2, "message putrn", 13, 50 ); uint8_t data[50] = {0}; NFC04A1_NFCTAG_ReadMailboxData(NFC04A1_NFCTAG_INSTANCE, &data, 0, 49); //uint16_t NDEF_ReadText( sRecordInfo_t pRecordStruct, NDEF_Text_info_t pText ) HAL_Delay(10); HAL_UART_Transmit(&huart2, "rnMessage is:rn", 16, 50); HAL_Delay(10); HAL_UART_Transmit(&huart2, data, 12, 50); HAL_Delay(10); HAL_UART_Transmit(&huart2, "rnrn", 14, 50); HAL_Delay(10); ST25DV_MB_CTRL_DYN_STATUS mbctrldynstatus; / Check if Mailbox is available / NFC04A1_NFCTAG_ReadMBCtrl_Dyn( NFC04A1_NFCTAG_INSTANCE,&mbctrldynstatus ); / Write Data into Mailbox/ const uint8_t buf[]={"Hello Readerrn"}; int32_t ret = 0; / If MB is available, write data / if( (mbctrldynstatus.HostPutMsg == 0) && (mbctrldynstatus.RfPutMsg == 0) ) { ret = NFC04A1_NFCTAG_WriteMailboxData( NFC04A1_NFCTAG_INSTANCE, buf, 14 ); __NOP(); } __NOP(); } else if( FieldStatus == ST25DV_FIELD_ON ) { / power up device / HAL_UART_Transmit(&huart2, "RF field detectedrn", 20, 50 ); HAL_Delay(10); } GPOActivated = 0; } } 来自读者的代码：* if( rfalNfcIsDevActivated( rfalNfcGetState() ) ) { rfalNfcGetActiveDevice( &nfcDevice ); ledsOff(); platformDelay(50); ndefDemoPrevFeature = 0xFF; /* Force the display of the prompt / uint8_t devUID[RFAL_NFCV_UID_LEN]; ST_MEMCPY( devUID, nfcDevice->nfcid, nfcDevice->nfcidLen ); / Copy the UID into local var / REVERSE_BYTES( devUID, RFAL_NFCV_UID_LEN ); / Reverse the UID for display purposes / platformLog("ISO15693/NFC-V card found. UID: %srn", hex2Str(devUID, RFAL_NFCV_UID_LEN)); platformLedOn(PLATFORM_LED_V_PORT, PLATFORM_LED_V_PIN); / Try to read a register / uint8_t addr = 0x00; uint8_t regcontent[30] = {0x0}; ReturnCode states[10] = {0}; / read enabled irq/ states[0] = rfalST25xVPollerReadConfiguration(RFAL_NFCV_REQ_FLAG_DEFAULT, nfcDevice->dev.nfcv.InvRes.UID, addr, ®content[0]); / check if tag is powered by vcc / states[1] = rfalST25xVPollerReadDynamicConfiguration(RFAL_NFCV_REQ_FLAG_DEFAULT, nfcDevice->dev.nfcv.InvRes.UID, 0x02, ®content[1]); / check if MB (fast transfer mode) is enabled / states[2] = rfalST25xVPollerReadConfiguration(RFAL_NFCV_REQ_FLAG_DEFAULT, nfcDevice->dev.nfcv.InvRes.UID, 0x0D, ®content[2]); states[3] = rfalST25xVPollerReadDynamicConfiguration(RFAL_NFCV_REQ_FLAG_DEFAULT, nfcDevice->dev.nfcv.InvRes.UID, 0x0D, ®content[3]); uint8_t txbuf[30] ={0}; uint8_t msgdata[] = "Hello Tag"; uint16_t len=0; uint8_t rxbuf[300] ={0}; platformLog("rnrn written into Mailbox rnrn"); / write into Mailbox / states[4] = rfalST25xVPollerFastWriteMessage( RFAL_NFCV_REQ_FLAG_DEFAULT, nfcDevice->dev.nfcv.InvRes.UID, 11, msgdata, txbuf, 25); / read dynamic configuration / states[3] = rfalST25xVPollerReadDynamicConfiguration(RFAL_NFCV_REQ_FLAG_DEFAULT, nfcDevice->dev.nfcv.InvRes.UID, 0x0D, ®content[3]); / Read from Mailbox / states[5] = rfalST25xVPollerFastReadMessage(RFAL_NFCV_REQ_FLAG_DEFAULT, nfcDevice->dev.nfcv.InvRes.UID, 0, 30, rxbuf, sizeof(rxbuf), &len); / Loop until tag is removed from the field / platformLog("Operation completedrnTag can be removed from the fieldrn"); rfalNfcvPollerInitialize(); while (rfalNfcvPollerInventory( RFAL_NFCV_NUM_SLOTS_1, RFAL_NFCV_UID_LEN 8U, nfcDevice->dev.nfcv.InvRes.UID, &invRes, &rcvdLen) == ERR_NONE) { platformDelay(130); } rfalNfcDeactivate( false ); platformDelay( 500 ); state = DEMO_ST_START_DISCOVERY; } 0
2022-12-20 06:22:19　　评论淘帖0 邀请回答您可以邀请以下用户，快速回答问题 × wang21cj 该类别下有 44 个回答。邀请回答新星之火12138 该类别下有 41 个回答。邀请回答 chm5 该类别下有 39 个回答。邀请回答 hgimtk 该类别下有 33 个回答。邀请回答 HengDu 该类别下有 30 个回答。邀请回答 jghgfdssas 该类别下有 28 个回答。邀请回答 hwp0415229 该类别下有 28 个回答。邀请回答颜刚YanG 该类别下有 26 个回答。邀请回答可口可甜该类别下有 26 个回答。邀请回答 kingnet6688 该类别下有 26 个回答。邀请回答 andyfly7 该类别下有 25 个回答。邀请回答麻酱该类别下有 25 个回答。邀请回答 zyh34997 该类别下有 25 个回答。邀请回答柱子图宁该类别下有 25 个回答。邀请回答 jenny042 该类别下有 25 个回答。邀请回答 kingnet9999 该类别下有 25 个回答。邀请回答云汉007 该类别下有 24 个回答。邀请回答 ggfvxv 该类别下有 24 个回答。邀请回答 heks 该类别下有 24 个回答。邀请回答 iyfhnvbn 该类别下有 24 个回答。邀请回答举报张勇相关推荐 • ST25DV04K：I2C和RF通信不工作怎么解决？ 470 • NFC如何增加与ST25DV一侧的距离 315 • cr95hf成功读取数据后，是否可以通过空中发送rf命令到st25dv04k？ 234 • ACR122未检测到ST25DV04K 2873 • ST25DV64KC-DISCO如何才能与标签通信？ 303 • 有没有办法使用任何I2C命令检测NFC天线是否连接到ST25DV04K？ 869 • 如何将PN7160与STM32WL连接以发现、读取和写入ST25DV04KC动态标签？ 553 • 我可以在没有任何配置或初始化的情况下使用st25dv04k nfc动态标签吗？ 305 • 是否可以设置密码来保护NFC设备ST25DV04K的写入呢 390 • ST25DV16K和Android 8.0的问题如何解决？ 337 1个回答

答案对人有帮助，有参考价值 0 ST25 嵌入式 NFC 库示例默认适用于 NUCLEO-L476RG，因此您必须在 STM32F401RE 上进行移植。我建议使用 STM32CubeMX 通过正确初始化 SPI 和中断引脚为 STM32F401RE 生成项目，然后手动导入各种源文件和包含文件。还要确保从 FTM 示例（例如 ST25R3916 定义）导入各种定义，但与 NUCLEO-L476RG 相关的定义除外。

2022-12-20 11:09:42 评论举报田野