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TX power and RX sensitivity in the CC2538-CC2592EM add-on module of CC2538DK have different profiles when compared to the CC2538EMK add-on module of the same CC2538DK. The former uses the CC2592 which has Power Amplifier (PA) for higher output and a Low Noise Amplifier (LNA) for improved receiver sensitivity, thus, when flashing the CC2538-CC2592EM module using the CC2538DK board configuration the receiving capability becomes stronger compared to the transmitting capability. I mean if CC2538-CC2592EM is receiving a packet from an outside device with a signal strength of 55, the outside device will have a received signal strength of 1 if the CC2538-CC2592EM module sends back a reply.
Steps to reproduce the issue
The CC2538-CC2592EM add-on module and CC2538EMK add-on module each are attached to their individual SmartRF06EB boards.
I used "ndn-consumer" (in CC2538EMK module) and "ndn-producer" (in CC2538-CC2592EM module) examples found here to print the RSSI values.
CC2538-CC2592EM module: make PORT=/dev/ttyUSB1 BOARD=cc2538dk flash term
CC2538EMK module: make PORT=/dev/ttyUSB3 BOARD=cc2538dk flash term
Expected results
RSSI values of both modules should be similar not with a huge gap.
Within two-meters
RSSI is ~65 in the CC2538-CC2592EM when receives the CC2538EMK message
RSSI is ~65 in the CC2538EMK when receives the CC2538-CC2592EM message
Actual results
Within two-meters
RSSI is ~55 in the CC2538-CC2592EM when receives the CC2538EMK message
RSSI is ~1 in the CC2538EMK when receives the CC2538-CC2592EM message
The text was updated successfully, but these errors were encountered:
maribu
added
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Type: bug
The issue reports a bug / The PR fixes a bug (including spelling errors)
label
May 22, 2023
Description
TX power and RX sensitivity in the CC2538-CC2592EM add-on module of CC2538DK have different profiles when compared to the CC2538EMK add-on module of the same CC2538DK. The former uses the CC2592 which has Power Amplifier (PA) for higher output and a Low Noise Amplifier (LNA) for improved receiver sensitivity, thus, when flashing the CC2538-CC2592EM module using the CC2538DK board configuration the receiving capability becomes stronger compared to the transmitting capability. I mean if CC2538-CC2592EM is receiving a packet from an outside device with a signal strength of 55, the outside device will have a received signal strength of 1 if the CC2538-CC2592EM module sends back a reply.
Steps to reproduce the issue
The CC2538-CC2592EM add-on module and CC2538EMK add-on module each are attached to their individual SmartRF06EB boards.
I used "ndn-consumer" (in CC2538EMK module) and "ndn-producer" (in CC2538-CC2592EM module) examples found here to print the RSSI values.
CC2538-CC2592EM module:
make PORT=/dev/ttyUSB1 BOARD=cc2538dk flash term
CC2538EMK module:
make PORT=/dev/ttyUSB3 BOARD=cc2538dk flash term
Expected results
RSSI values of both modules should be similar not with a huge gap.
Within two-meters
RSSI is ~65 in the CC2538-CC2592EM when receives the CC2538EMK message
RSSI is ~65 in the CC2538EMK when receives the CC2538-CC2592EM message
Actual results
Within two-meters
RSSI is ~55 in the CC2538-CC2592EM when receives the CC2538EMK message
RSSI is ~1 in the CC2538EMK when receives the CC2538-CC2592EM message
The text was updated successfully, but these errors were encountered: