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[cc1101] Keep the remote_receiver interrupt on a shared GDO0 pin in begin_tx (#20296)

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This commit is contained in:
David Buezas
2026-10-07 22:53:12 -04:00
committed by GitHub
parent 1ee4940d4d
commit 31c488e5b0
1 changed files with 7 additions and 1 deletions
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esphome/components/cc1101/cc1101.cpp
+7 -1
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@@ -259,11 +259,17 @@ void CC1101Component::dump_config() {
}
void CC1101Component::begin_tx() {
// Read the mode before the PKTCTRL0 write below overwrites it in state_
const bool packet_mode = this->state_.PKT_FORMAT == static_cast<uint8_t>(PacketFormat::PACKET_FORMAT_FIFO);
// Ensure Packet Format is 3 (Async Serial)
this->write_(Register::PKTCTRL0, 0x32);
ESP_LOGV(TAG, "Beginning TX sequence");
if (this->gdo0_pin_ != nullptr) {
this->gdo0_pin_->detach_interrupt();
// setup() only attaches the interrupt in packet mode. In async serial mode the pin may be
// shared with remote_receiver, and detaching here would remove the receiver's interrupt.
if (packet_mode) {
this->gdo0_pin_->detach_interrupt();
}
this->gdo0_pin_->pin_mode(gpio::FLAG_OUTPUT);
}
// Transition through IDLE to bypass CCA (Clear Channel Assessment) which can