PER TX example freezes on SX1262 EVK when the touchscreen is attached

Open kmuster-semtech opened this issue 10 months ago • 0 comments

A customer noticed that when a touchscreen is attached to the SX1262 EVK (PCB_E428V03A), the PER example (RX = False) freezes on the second transmission count. This is solved by removing the touchscreen or using an actual SX1262MB2CAS shield (PCB_E499V01B). It might be helpful to find what causes this freeze or make note of this behavior somewhere in the ReadMe so other users don't encounter this issue.

Terminal output: INFO: ===== SX126x PER example - Transmitter =====

INFO: SDK version: v2.3.0 INFO: INFO: Common RF parameters: INFO: Packet type = SX126X_PKT_TYPE_LORA INFO: RF Freq = 863000000 Hz INFO: Output power = 22 dBm INFO: Fallback mode = SX126X_FALLBACK_STDBY_RC INFO: Rx boost mode deactivated INFO: INFO: LoRa modulation parameters: INFO: Spreading Factor = SX126X_LORA_SF6 INFO: Bandwidth = SX126X_LORA_BW_125 INFO: Coding rate = SX126X_LORA_CR_4_5 INFO: INFO: LoRa packet parameters: INFO: Preamble length = 8 symbol(s) INFO: Header mode = SX126X_LORA_PKT_EXPLICIT INFO: Payload length = 222 INFO: INFO: LoRa sync word = 0x12 INFO: Tx done INFO: Counter value: 1 INFO: Tx done INFO: Counter value: 2

(device freezes with red TX LED on)

Mar 27 '25 17:03 kmuster-semtech