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AirBrainH743: add external I2C

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This is for future/later board revisions.
This commit is contained in:
Julian Oes 2026-01-19 06:09:29 +13:00
parent 7715a4ab4c
commit 34845a62b0
3 changed files with 10 additions and 0 deletions
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7
boards/gearup/airbrainh743/nuttx-config/include/board.h
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@ -319,6 +319,7 @@
/* I2C
*
* I2C1: Internal (PB6 SCL, PB7 SDA)
* I2C4: External (PD12 SCL, PD13 SDA)
*/
#define GPIO_I2C1_SCL GPIO_I2C1_SCL_1 /* PB6 */
@ -327,6 +328,12 @@
#define GPIO_I2C1_SCL_GPIO (GPIO_OUTPUT | GPIO_OPENDRAIN | GPIO_SPEED_50MHz | GPIO_OUTPUT_SET | GPIO_PORTB | GPIO_PIN6)
#define GPIO_I2C1_SDA_GPIO (GPIO_OUTPUT | GPIO_OPENDRAIN | GPIO_SPEED_50MHz | GPIO_OUTPUT_SET | GPIO_PORTB | GPIO_PIN7)
#define GPIO_I2C4_SCL GPIO_I2C4_SCL_1 /* PD12 */
#define GPIO_I2C4_SDA GPIO_I2C4_SDA_1 /* PD13 */
#define GPIO_I2C4_SCL_GPIO (GPIO_OUTPUT | GPIO_OPENDRAIN | GPIO_SPEED_50MHz | GPIO_OUTPUT_SET | GPIO_PORTD | GPIO_PIN12)
#define GPIO_I2C4_SDA_GPIO (GPIO_OUTPUT | GPIO_OPENDRAIN | GPIO_SPEED_50MHz | GPIO_OUTPUT_SET | GPIO_PORTD | GPIO_PIN13)
/* USB
*

1
boards/gearup/airbrainh743/nuttx-config/nsh/defconfig
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@ -190,6 +190,7 @@ CONFIG_STM32H7_DMACAPABLE=y
CONFIG_STM32H7_DMAMUX1=y
CONFIG_STM32H7_FLOWCONTROL_BROKEN=y
CONFIG_STM32H7_I2C1=y
CONFIG_STM32H7_I2C4=y
CONFIG_STM32H7_I2C_DYNTIMEO=y
CONFIG_STM32H7_I2C_DYNTIMEO_STARTSTOP=10
CONFIG_STM32H7_OTGFS=y

2
boards/gearup/airbrainh743/src/i2c.cpp
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@ -38,8 +38,10 @@
*
* I2C1: Internal bus - PB6 (SCL), PB7 (SDA)
* Devices: DPS310 baro @ 0x76, LIS2MDL compass @ 0x1E
* I2C4: External bus - PD12 (SCL), PD13 (SDA)
*/
constexpr px4_i2c_bus_t px4_i2c_buses[I2C_BUS_MAX_BUS_ITEMS] = {
initI2CBusInternal(1),
initI2CBusExternal(4),
};