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mcci-catena / ibm-lmic

The IBM Zurich LMiC codebase
http://www.research.ibm.com/labs/zurich/ics/lrsc/lmic.html
BSD 3-Clause "New" or "Revised" License
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Erraneous TX power settings for SX1276 in radio.c? #15

Open cyberman54 opened 6 years ago

cyberman54 commented 6 years ago

For me it seems LMiC code in radio.c selecting the PA Output pin of SX1276 is erraenous. Always Pin PA_BOOST is selected. This can cause malfunction, if board hardware does not wire this pin, because it uses the RFO_HF / RFO_LF pins only.

Further details on this issue can be found here.

terrillmoore commented 6 years ago

Thanks for posting this. In our experiments (e.g. porting to the Murata module), we have found other items that need to be corrected -- for example, the polarity of the RX/TX switch antenna switch. We recently added LBT support to https://github.com/mcci-catena/arduino-lmic, on branch TMM-feature-as923jp, and we had to further extend the "pin mapping" (really, the "configure-for-my-hardware") table. Since we're currently testing in Japan, we'll update the mcci-catena fork based on our results, and at that time we can look into also extending the pin-mapping table to support this. As always, the problem is testing....