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SourceVuESP-IDF Framework and ExamplesESP-IDFi2c_obj_t::status

i2c_obj_t::status field

record current command status, for master mode

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Declaration

int status;

References

Code

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Referrer

int status; /*!< record current command status, for master mode */

p_i2c->status = I2C_STATUS_IDLE;

i2c_driver_install()

if (p_i2c->status == I2C_STATUS_WRITE) {

i2c_isr_handler_default()

} else if (p_i2c->status == I2C_STATUS_READ) {

i2c_isr_handler_default()

p_i2c_obj[i2c_num]->status = I2C_STATUS_ACK_ERROR;

i2c_isr_handler_default()

p_i2c_obj[i2c_num]->status = I2C_STATUS_TIMEOUT;

i2c_isr_handler_default()

p_i2c_obj[i2c_num]->status = I2C_STATUS_TIMEOUT;

i2c_isr_handler_default()

if (p_i2c->status != I2C_STATUS_ACK_ERROR && p_i2c->status != I2C_STATUS_IDLE) {

i2c_isr_handler_default()

if (p_i2c->cmd_link.head != NULL && p_i2c->status == I2C_STATUS_READ) {

i2c_master_cmd_begin_static()

} else if ((p_i2c->status == I2C_STATUS_ACK_ERROR)

i2c_master_cmd_begin_static()

|| (p_i2c->status == I2C_STATUS_TIMEOUT)) {

i2c_master_cmd_begin_static()

} else if (p_i2c->status == I2C_STATUS_DONE) {

i2c_master_cmd_begin_static()

p_i2c->status = I2C_STATUS_IDLE;

i2c_master_cmd_begin_static()

p_i2c->status = I2C_STATUS_WRITE;

i2c_master_cmd_begin_static()

p_i2c->status = I2C_STATUS_READ;

i2c_master_cmd_begin_static()

if (p_i2c->status == I2C_STATUS_TIMEOUT

i2c_master_cmd_begin()

p_i2c->status = I2C_STATUS_IDLE;

i2c_master_cmd_begin()

if (p_i2c->status == I2C_STATUS_TIMEOUT) {

i2c_master_cmd_begin()

} else if (p_i2c->status == I2C_STATUS_ACK_ERROR) {

i2c_master_cmd_begin()

p_i2c->status = I2C_STATUS_DONE;

i2c_master_cmd_begin()

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Data Use

i2c_obj_t::status is written by 4 functions and is read by 3 functions:

i2c_driver_install()

i2c_isr_handler_default()

i2c_master_cmd_begin_static()

i2c_master_cmd_begin()

i2c_obj_t::status

i2c_isr_handler_default()

i2c_master_cmd_begin_static()

i2c_master_cmd_begin()

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