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esp32/mpconfigport: Disable I2CTarget on ESP32-C6 to reduce code size.

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I2CTarget costs about 8k of flash size on ESP32-S2, and about 11k on
ESP32-C6.  The ESP32-C6 only has about 8k remaining, so disable I2CTarget
on that SoC until more flash can be made available.

Signed-off-by: Damien George <damien@micropython.org>
This commit is contained in:
Damien George
2025-08-02 08:52:05 +10:00
parent e6739fc87e
commit 3c9546ea09
1 changed files with 2 additions and 1 deletions
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ports/esp32/mpconfigport.h
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@@ -140,7 +140,8 @@
#define MICROPY_PY_MACHINE_I2C (1)
#define MICROPY_PY_MACHINE_I2C_TRANSFER_WRITE1 (1)
// I2C target hardware is limited on ESP32 (eg read event comes after the read) so we only support newer SoCs.
#define MICROPY_PY_MACHINE_I2C_TARGET (SOC_I2C_SUPPORT_SLAVE && !CONFIG_IDF_TARGET_ESP32)
// ESP32C6 does not have enough flash space so also disable it on that SoC.
#define MICROPY_PY_MACHINE_I2C_TARGET (SOC_I2C_SUPPORT_SLAVE && !CONFIG_IDF_TARGET_ESP32 && !CONFIG_IDF_TARGET_ESP32C6)
#define MICROPY_PY_MACHINE_I2C_TARGET_INCLUDEFILE "ports/esp32/machine_i2c_target.c"
#define MICROPY_PY_MACHINE_I2C_TARGET_MAX (2)
#define MICROPY_PY_MACHINE_SOFTI2C (1)