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Add STM32C5 support to I3C with dual HAL V1/V2 compatibility #3023

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Add STM32C5 support to I3C with dual HAL V1/V2 compatibility #3023

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0dbe08b
Revert "chore(i3c): disable for HALv2 support"
Aymane-ST Jul 16, 2026
638af74
feat(I3C): add dual HAL V1/V2 support
Aymane-ST Jul 15, 2026
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4 changes: 2 additions & 2 deletions CI/build/examples/BareMinimum/BareMinimum.ino
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Original file line number Diff line number Diff line change
Expand Up @@ -15,7 +15,7 @@
#include <SPI.h>
#include <SoftwareSerial.h>
#include <Wire.h>
#if (defined(I3C1_BASE) || defined(I3C2_BASE)) && defined(HAL_I3C_MODULE_ENABLED)
#if defined(I3C1_BASE) || defined(I3C2_BASE)
#include <I3C.h>
#endif

Expand Down Expand Up @@ -137,7 +137,7 @@ void setup() {
Wire.requestFrom(2, 1);
Wire.end();

#if (defined(I3C1_BASE) || defined(I3C2_BASE)) && defined(HAL_I3C_MODULE_ENABLED)
#if defined(I3C1_BASE) || defined(I3C2_BASE)
// I3C
I3C.setBusType(I3CBusType::Pure);
I3C.setMixedBusOpenDrainFrequency(1000000U);
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10 changes: 10 additions & 0 deletions cores/arduino/stm32/stm32yyxx_hal_conf.h
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Expand Up @@ -54,6 +54,16 @@
#define USE_HAL_I2S_MODULE 1U
#endif

#if defined(HAL_I3C_MODULE_DISABLED)
#if defined(USE_HAL_I3C_MODULE)
#undef USE_HAL_I3C_MODULE
#endif
#define USE_HAL_I3C_MODULE 0U
#else
#define USE_HAL_I3C_MODULE 1U
#define USE_HAL_I3C_GET_LAST_ERRORS 0U
#endif

#if defined(HAL_RTC_MODULE_DISABLED)
#if defined(USE_HAL_RTC_MODULE)
#undef USE_HAL_RTC_MODULE
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2 changes: 1 addition & 1 deletion libraries/I3C/examples/Controller_Target/TargetReceive/TargetReceive.ino
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Expand Up @@ -30,7 +30,7 @@ void setup() {
Serial.print("DA = 0x");
Serial.println(I3C.address(), HEX);

HAL_I3C_FlushAllFifo(I3C.halHandle());
Serial.printf("flushAllFifos = %s\n", (I3C.flushAllFifos()) ? "true" : "false");

int rc = I3C.receive(rxBuf, sizeof(rxBuf), 10000);
Serial.print("receive rc = ");
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