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Added I2C address scan

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This commit is contained in:
dario 2024-07-01 11:06:45 +02:00
parent 2da360fd1e
commit 31e0a18864
4 changed files with 22 additions and 15 deletions
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10
include/sta/bus/i2c/i2c.hpp
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@ -35,11 +35,19 @@ namespace sta
*/ */
void setSettings(uint16_t address, bool master, bool blocking); void setSettings(uint16_t address, bool master, bool blocking);
/**
* @brief Checks if a device with the given address is connected to the I2C bus.
*
* @param address The address to check availability for.
* @return true if the address exists, false otherwise.
*/
virtual bool hasAddress(int address) = 0;
/** /**
* @brief Prints all available addresses via the debug printable. * @brief Prints all available addresses via the debug printable.
* *
*/ */
virtual void addressScan() = 0; void scanAddresses();
protected: protected:
/// @brief The peripheral's address to communicate with. /// @brief The peripheral's address to communicate with.
uint16_t address_; uint16_t address_;

3
include/sta/devices/stm32/bus/i2c.hpp
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@ -28,8 +28,7 @@ namespace sta
bool receive(uint8_t * buffer, size_t size, uint32_t timeout = STA_MAX_TIMEOUT) override; bool receive(uint8_t * buffer, size_t size, uint32_t timeout = STA_MAX_TIMEOUT) override;
bool readMemory(uint8_t regAddr, uint8_t * buffer, size_t size, uint32_t timeout = STA_MAX_TIMEOUT) override; bool readMemory(uint8_t regAddr, uint8_t * buffer, size_t size, uint32_t timeout = STA_MAX_TIMEOUT) override;
bool fill(uint8_t value, size_t count, uint32_t timeout = STA_MAX_TIMEOUT) override; bool fill(uint8_t value, size_t count, uint32_t timeout = STA_MAX_TIMEOUT) override;
bool hasAddress(int address); bool hasAddress(int address) override;
void addressScan();
private: private:
I2C_HandleTypeDef * handle_; I2C_HandleTypeDef * handle_;
}; };

13
src/bus/i2c/i2c.cpp
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@ -1,5 +1,5 @@
#include <sta/bus/i2c/i2c.hpp> #include <sta/bus/i2c/i2c.hpp>
#include <sta/debug/debug.hpp>
namespace sta namespace sta
{ {
@ -15,4 +15,15 @@ namespace sta
master_ = master; master_ = master;
blocking_ = blocking; blocking_ = blocking;
} }
void I2C::scanAddresses()
{
for (uint8_t i = 0; i < 128; ++i)
{
if (hasAddress(i))
{
STA_DEBUG_PRINTF("Address %d is available", i);
}
}
}
} // namespace sta } // namespace sta

11
src/devices/stm32/bus/i2c.cpp
View File

@ -141,17 +141,6 @@ namespace sta
return HAL_I2C_IsDeviceReady(handle_, (uint16_t)(address << 1), 3, 5) == HAL_OK; return HAL_I2C_IsDeviceReady(handle_, (uint16_t)(address << 1), 3, 5) == HAL_OK;
} }
void STM32I2C::addressScan()
{
for(uint8_t i = 1; i < 128; i++)
{
if (hasAddress(i))
{
STA_DEBUG_PRINTF("Address %d exists", i);
}
}
}
STM32I2CDevice::STM32I2CDevice(STM32I2C * intf, int address, bool master, bool blocking) STM32I2CDevice::STM32I2CDevice(STM32I2C * intf, int address, bool master, bool blocking)
/* The address is bit-shifted by one to work properly for the STM32 HAL. */ /* The address is bit-shifted by one to work properly for the STM32 HAL. */
: I2CDevice(intf, address << 1, master, blocking) : I2CDevice(intf, address << 1, master, blocking)