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| network_protocol_programming_lab:scanning [2020/06/05 08:56] – [Requirements] rathke | network_protocol_programming_lab:scanning [2021/04/19 12:42] (current) – [Tasks] rathke | ||
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| This task requires | This task requires | ||
| - | * a ready BeagleBone Black equipped with the CC1200 | + | * a ready BeagleBone Black equipped with the CC1200. |
| - | * one TI Development Kit for the CC1200. | + | * 4C attached to a second BeagleBone Black equipped with the CC1200. |
| - | * Smart RF Studio | + | * 4C sending packets with a symbol rate of 1.2 kBaude and a preamble count of 6 Bytes. |
| ===== Tasks ===== | ===== Tasks ===== | ||
| * the programming is done by extending the source files from the previous lesson [[network_protocol_programming_lab: | * the programming is done by extending the source files from the previous lesson [[network_protocol_programming_lab: | ||
| * Extend your program by a function that measures the RSSI within a frequency band. If no RSSI is detected, choose another band and try again. But, if an RSSI is detected, start receiving a packet. After packet reception, scan again .... | * Extend your program by a function that measures the RSSI within a frequency band. If no RSSI is detected, choose another band and try again. But, if an RSSI is detected, start receiving a packet. After packet reception, scan again .... | ||
| - | * Limit the number of frequencies to 3. | + | * Limit the number of frequencies to 3 (e.g. 850MHz, 820MHz and 950MHz). Die frequencies are chosen to be the lowest supported , the highest supported frequency and a frequency between them. |
| * For testing, start your program. | * For testing, start your program. | ||
| - | * Use SmartRF Studio | + | * Use 4C to transmit packets at the RF frequency of your supported frequency set.(do not forget to change the symbol rate and preamble count in 4C). |
| * Your program should recognize a valid RSSI and start receiving packets. | * Your program should recognize a valid RSSI and start receiving packets. | ||
| * Now, change RF to a frequency to another frequency band. Stopping and restarting the transmitter ist not necessary. | * Now, change RF to a frequency to another frequency band. Stopping and restarting the transmitter ist not necessary. | ||
