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Merge pull request #103 from cjkas/fix/cc1101-spi-bus-hang

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fix: CC1101 init hangs the ESP32-S3 when the radio is enabled
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cjkas 2026-10-24 21:15:00 +02:00 • committed by GitHub
commit ce8b0d0ed2
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lib/SmartRC-CC1101-Driver-Lib/ELECHOUSE_CC1101_SRC_DRV.cpp
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@ -104,10 +104,19 @@ uint8_t PA_TABLE_915[10] {0x03,0x0E,0x1E,0x27,0x38,0x8E,0x84,0xCC,0xC3,0xC0,};
void ELECHOUSE_CC1101::SpiStart(void)
{
// initialize the SPI pins
#ifdef ESP32
// ESPSomfy-RTS: SPI.begin() sets the bus pins up itself. Init() calls this
// again while the bus is running, and on Arduino 3.x a pinMode() on a pin
// the bus owns stops the bus while SPI.begin() still thinks it is up. The
// next transfer is lost on the ESP32 and hangs forever on the S3, whose
// stopped bus has no clock. SS is driven by hand, so it still needs one.
pinMode(SS_PIN, OUTPUT);
#else
pinMode(SCK_PIN, OUTPUT);
pinMode(MOSI_PIN, OUTPUT);
pinMode(MISO_PIN, INPUT);
pinMode(SS_PIN, OUTPUT);
#endif
// enable SPI
#ifdef ESP32