CC1100 PDF

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The friendly Operating System for the Internet of Things. This driver has been developed for the CC and the older CC transceiver and tested for both. It is suggested to go for the CC when considering to buy one of the supported transceivers. Beware that while the CC chip can operate a various base frequencies, the antenna circuit will only work for a single frequency band. Most break out boards will operate at MHz, which is license free in many countries but verify that for your country before buying!

But when deploying only a few dozens of devices, the MHz band is also fine for EU citizens. However, the MHz band has not been tested, as using it would be illegal in the EU. The Length Field contains the length of the driver supplied data in bytes, not counting the Length Field. Thus, it contains the length of the payload plus the length of the Destination and Source address. The layer 2 addresses of the CCx transceivers is a single byte long and the special value 0x00 for the destination address is used in broadcast transmissions.

The transceiver is configured by this driver to ignore all packets unless the destination address matches the address of the transceiver or the destination address is 0x The RIOT channel numbers will always start from 0, and currently only up to eight channels are supported.

A special value of as offset from the base frequency in the channel map is used mark the channel as disabled. This can be used if less than 8 non-overlapping channels are possible in the license free band.

Also, the distance between the channels in the channel map should match the channel bandwidth of the configuration, as otherwise channels could overlap. Please consider this as a slow operation, as the transceiver needs to be calibrated for each channel in the channel map. However, they need to be calibrated to work correctly with the given supply voltage and the current temperature. The driver will perform this calibration during startup, but when the supply voltage or the temperature is not stable, a recalibration is required whenever the supply voltage of temperature has changed too much since the last calibration.

It is left to the application developer to perform this calibration when needed. During a test of about 2 hours of operation in an in-door environment with a stable temperature the CC has worked reliable without any calibration at all except for the automatic calibration at start up.

So there are use cases which do not require any recalibration at all. There are basically two things that can fail:. Upon initialization the driver will read out the part number and version of the transceiver. If this fails, most likely incorrect values are read out and the SPI communication does not work correctly. However, future revisions of the CCX transceivers might be produced and might have different values for the part number or version.

After uploading the configuration, the driver will read back the configuration to verify it. If the SPI communication is not reliable e. If two transceivers are too close to each other and TX power is at maximum, the signal is just too strong to be received correctly. Reducing TX power or increasing the distance about half a meter should be fine will solve this issue. While the chips can operate at any base frequency offered by the driver, the circuit the chip is connected to and the antenna are build for a single base band.

Check if your configuration matches the frequency range the board is build for. Definition at line of file ccx. The three least significant bytes match the representation of the matching transceiver state given in the status byte of the hardware.

See Table 32 on page 31 in the data sheet for the possible states in the status byte. There is no matching representation in the status byte, as reading the status byte will power up the transceiver in bring it in the IDLE state.

Thus, we set the three least significant bits to the IDLE state. Because the configuration potentially changes the channel bandwidth, the old channel map is rendered invalid. This API therefore asks for both to make sure an application developer does not forget to update the channel map. Tunes in each supported channel and calibrates the transceiver.

This function implements the fact channel hopping approach outlined in section Toggle navigation Documentation. This has the drawback, that configurations breaking laws and rules are complete possible.

Please make sure that the configured output power, duty cycle, frequency range, etc. Supported Hardware and how to obtain This driver has been developed for the CC and the older CC transceiver and tested for both.

Packet Format 0 1 2 3. Length of a layer 2 frame. This does not include the preamble, sync word, CRC field, and length field. Transceiver is in IDLE state. Transceiver is in RX state. Enumeration over the possible TX power settings the driver offers. Apply the given configuration and the given channel map and performs a recalibration.

Parameters dev Device descriptor of the transceiver conf Configuration to apply or NULL to only change channel map chanmap Channel map to apply must be compatible with conf channel The channel to tune in after applying the config Return values 0 Success -EINVAL Called with invalid argument -EIO Communication with the transceiver failed -ERANGE Channel out of range or not supported by channel map Precondition The application developer checked in the documentation that the channel map in chanmap is compatible with the configuration in conf Because the configuration potentially changes the channel bandwidth, the old channel map is rendered invalid.

Perform a calibration of the frequency generator for each supported channel. Hops to the specified channel. Set the TX power to the specified value. Generated on Fri Jun 5 by 1. Configuration of the transceiver to use. Structure to hold mapping between virtual and physical channel numbers. Structure holding all parameter for driver initialization.

Structure holding the calibration data of the frequency synthesizer. Frame received, waiting for upper layer to retrieve it. Waiting for transceiver to complete outgoing transmission. Transceiver is in TX state. Currently in a state that does not allow hopping, e.

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The CC radio operates at 2. Dubbed project "Blaze" to encompass all of these radios types, this TinyOS development will continue pushing the boundaries of practical and efficient radio technology in wireless sensor networks. Drivers for TinyOS are open-source and are located in the tinyos Dual-radio platforms are easily achievable, and exist today. The lower the frequency, the larger the antenna. The 2.

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