IoT SDK error codes

Error codes for the nRF5x IoT SDK. More...

Modules
	Base defined for IoT SDK Modules
	Module codes
	Codes reserved as identification for the module where the error occurred.
	Common error codes
	Codes reserved as identification for common errors.
	IPSP codes
	Error and status codes specific to IPSP.
	6LoWPAN codes
	Error and status codes specific to 6LoWPAN.
	IPv6 codes
	Error and status codes specific to IPv6.
	UDP codes
	Error and status codes specific to UDP.
	socket error codes
	Error and status codes specific to socket API.
	ICMP codes
	Error and status codes specific to ICMP.
	CoAP codes
	Error and status codes specific to CoAP.
	DNS codes.
	Error and status codes specific to DNS.
	NTP codes.
	Error and status codes specific to NTP.
	TFTP codes.
	Error and status codes specific to TFTP.
	MQTT Error Codes
	NRF TLS Interface Error Codes

Detailed Description

Error codes for the nRF5x IoT SDK.

Error codes are 32-bit unsigned integers. The most significant 16 bits (MSB) are reserved for identifying the module where the error occurred. The least significant 16 bits (LSB) are used to provide the cause or nature of error. Each module is assigned a 16-bit unsigned integer, which it will use to identify all errors that occurred in the module. For example, if 0x8800 identifies a certain SDK module, all error codes from 0x88000000 to 0x8800FFFF are reserved for this module.

Note that common error reasons have been assigned values to make it possible to decode error reasons easily. As an example, if a module is not initialized, this error is assigned the error code 0x000A0. If an application encounters an error code 0xZZZZ00A0, the application knows that it tried to access a certain module without initializing it.

Each module can define error codes that are not covered by the common codes. These values must be defined in a range that does not conflict with the common error values. Such module-specific error values might be used by different modules to indicate errors of very different nature; so the same error code LSB does not necessarily indicate the same error. If an error is already defined by the NRF common error codes, however, these codes are reused.

A specific range is also reserved for the application. The application can use this range to define application-specific errors.

The success code NRF_SUCCESS does not include a module identifier.