transfer data from array to regdata, and regdata to array

kerim — Wed, 18 Nov 2020 20:26:05 GMT

transfer data from array to regdata but it doesn't work can you help me

int8_t BMP180_I2C_bus_write(u8 dev_addr, u8 reg_addr, u8 *reg_data, u8 cnt) { s32 iError = 0; u8 array[I2C_BUFFER_LEN]= {0}; u8 stringpos = 0; array[0] = reg_addr; //Used in the function I2C_MasterTransferBlocking(...) i2c_master_transfer_t masterXfer; //Allocate memory for the masterXfer variable memset(&masterXfer, 0, sizeof(masterXfer)); masterXfer.slaveAddress = dev_addr; // Adresse du device BMP180 masterXfer.direction = kI2C_Write; masterXfer.subaddress = reg_addr; // adresse du registre à écrire; masterXfer.subaddressSize = 1; masterXfer.data = array; masterXfer.dataSize = cnt; masterXfer.flags = kI2C_TransferDefaultFlag; // transférer les données de reg_data vers array // Appeler la fonction I2C_MasterTransferBlocking(...) de la librairie fsl_i2c I2C_MasterTransferBlocking(I2C_MASTER_BASEADDR, &masterXfer); iError = I2C_MasterTransferBlocking(I2C_MASTER_BASEADDR, &masterXfer); for (stringpos=0; stringpos<cnt; stringpos++) { array[stringpos]= *(reg_data + stringpos); } return (s8)iError; } /* \Brief: This function is used for I2C bus read * \Return : Status of the I2C read * \param dev_addr : The device address of the sensor * \param reg_addr : Address of the first register, will data is going to be read * \param reg_data : contains the data read from the sensor * \param cnt : The no of byte of data to be read */ s8 BMP180_I2C_bus_read(u8 dev_addr, u8 reg_addr, u8 *reg_data, u8 cnt) { s32 iError = 0; u8 array[I2C_BUFFER_LEN] = {0}; u8 stringpos = 0; array[0] = reg_addr; i2c_master_transfer_t masterXfer; memset(&masterXfer, 0, sizeof(masterXfer)); masterXfer.slaveAddress = dev_addr; masterXfer.direction = 0x1U; // trouvez la constante définie dans fsl_i2c.h qui correspond masterXfer.subaddress = reg_addr; masterXfer.subaddressSize = 1; masterXfer.data = 0; //adresse du tableau array; masterXfer.dataSize = cnt; masterXfer.flags = kI2C_TransferDefaultFlag; I2C_MasterTransferBlocking(I2C_MASTER_BASEADDR, &masterXfer); iError = I2C_MasterTransferBlocking(I2C_MASTER_BASEADDR, &masterXfer); // transférez les données de array vers regdata for (stringpos=0; stringpos<cnt; stringpos++) { *(reg_data + stringpos)=array[stringpos]; } return (s8)iError; }

topic transfer data from array to regdata, and regdata to array in MCUXpresso SDK

transfer data from array to regdata, and regdata to array