2. SIFLI-SDK
3. example/hal/i2c/eeprom/README
4. English

/// @brief Initialization work before power on EEPROM
/// @param
void EEPROM_init(void)
{
uint8_t slaveAddr = EEPROM_I2C_ADDRESS; // 7bit address of device
HAL_StatusTypeDef ret;
//1. pin mux
#ifdef SF32LB52X
HAL_RCC_EnableModule(RCC_MOD_I2C2); // enable i2c2
#define EXAMPLE_I2C I2C2 // i2c number of cpu
#define EXAMPLE_I2C_IRQ I2C2_IRQn // i2c number of interruput when using interrupte mode
HAL_PIN_Set(PAD_PA41, I2C2_SCL, PIN_PULLUP, 1); // i2c io select
HAL_PIN_Set(PAD_PA42, I2C2_SDA, PIN_PULLUP, 1);
#elif defined(SF32LB58X)
#define EXAMPLE_I2C I2C6 // i2c number of cpu
#define EXAMPLE_I2C_IRQ I2C6_IRQn // i2c number of interruput when using interrupte mode
HAL_PIN_Set(PAD_PB28, I2C6_SCL, PIN_PULLUP, 1); // i2c io select
HAL_PIN_Set(PAD_PB29, I2C6_SDA, PIN_PULLUP, 1);
#elif defined(SF32LB56X)
#define EXAMPLE_I2C I2C3 // i2c number of cpu
#define EXAMPLE_I2C_IRQ I2C3_IRQn // i2c number of interruput when using interrupte mode
HAL_PIN_Set(PAD_PA20, I2C3_SCL, PIN_PULLUP, 1); // i2c io select
HAL_PIN_Set(PAD_PA12, I2C3_SDA, PIN_PULLUP, 1);
#endif

// 2. i2c init
i2c_Handle.Instance = EXAMPLE_I2C;
i2c_Handle.Mode = HAL_I2C_MODE_MASTER; // i2c master mode
i2c_Handle.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; // i2c 7bits device address mode
i2c_Handle.Init.ClockSpeed = 400000; // i2c speed (hz)
i2c_Handle.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
ret = HAL_I2C_Init(&i2c_Handle);
rt_kprintf("EEPROM_init%d\n", ret);
}

/// @brief Performs initialization before powering on the EEPROM.
/// @param
void EEPROM_init(void)
{
uint8_t slaveAddr = EEPROM_I2C_ADDRESS; // 7-bit device address
HAL_StatusTypeDef ret;
//1. Pin multiplexing configuration
#ifdef SF32LB52X
HAL_RCC_EnableModule(RCC_MOD_I2C2); // Enable I2C2 clock
#define EXAMPLE_I2C I2C2 // MCPU I2C peripheral instance
#define EXAMPLE_I2C_IRQ I2C2_IRQn // I2C interrupt number for interrupt mode
HAL_PIN_Set(PAD_PA41, I2C2_SCL, PIN_PULLUP, 1); // Select I2C IOI2C pin selection
HAL_PIN_Set(PAD_PA42, I2C2_SDA, PIN_PULLUP, 1);
#elif defined(SF32LB58X)
#define EXAMPLE_I2C I2C6 // MCPU I2C peripheral instance
#define EXAMPLE_I2C_IRQ I2C6_IRQn // I2C interrupt number for interrupt mode
HAL_PIN_Set(PAD_PB28, I2C6_SCL, PIN_PULLUP, 1); // Select I2C IOI2C pin selection
HAL_PIN_Set(PAD_PB29, I2C6_SDA, PIN_PULLUP, 1);
#elif defined(SF32LB56X)
#define EXAMPLE_I2C I2C3 // MCPU I2C peripheral instance
#define EXAMPLE_I2C_IRQ I2C3_IRQn // I2C interrupt number for interrupt mode
HAL_PIN_Set(PAD_PA20, I2C3_SCL, PIN_PULLUP, 1); // Select I2C IOI2C pin selection
HAL_PIN_Set(PAD_PA12, I2C3_SDA, PIN_PULLUP, 1);
#endif

// 2. I2C peripheral initialization
i2c_Handle.Instance = EXAMPLE_I2C;
i2c_Handle.Mode = HAL_I2C_MODE_MASTER; // Set as I2C master mode
i2c_Handle.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; // Use 7-bit addressing mode
i2c_Handle.Init.ClockSpeed = 400000; // I2C clock speedfrequency (Hz)
i2c_Handle.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
ret = HAL_I2C_Init(&i2c_Handle);
rt_kprintf("EEPROM_init%d\n", ret);
}

void EEPROM_read_data(uint8_t addr, uint8_t *pdata)
{
HAL_StatusTypeDef ret;
uint8_t buf = 0;

__HAL_I2C_ENABLE(&i2c_Handle); // for master, enable it before transmit

// 5. Read register value after write

// device need stop condition before read
// ret = HAL_I2C_Master_Transmit(&i2c_Handle, EEPROM_I2C_ADDRESS, &addr, 1, 1000);
// ret = HAL_I2C_Master_Receive(&i2c_Handle, EEPROM_I2C_ADDRESS, (uint8_t *)pdata, 2, 1000);

// device can read without stop condition, restart condition instead
ret = HAL_I2C_Mem_Read(&i2c_Handle, EEPROM_I2C_ADDRESS, addr, 1, &buf, 2, 1000);
*pdata = buf;

rt_kprintf("i2c read reg:0x%x,pdata:0x%x,ret:%d\n", addr, *pdata, ret);

__HAL_I2C_DISABLE(&i2c_Handle); // for master, disable it after transmit to reduce error status
}

void EEPROM_read_data(uint8_t addr, uint8_t *pdata)
{
HAL_StatusTypeDef ret;
uint8_t buf = 0;

__HAL_I2C_ENABLE(&i2c_Handle); // Enable the I2C master before transmission

// 5. Read the register value after writeing

// Devices requiresing a STOP condition before reading
// ret = HAL_I2C_Master_Transmit(&i2c_Handle, EEPROM_I2C_ADDRESS, &addr, 1, 1000);
// ret = HAL_I2C_Master_Receive(&i2c_Handle, EEPROM_I2C_ADDRESS, (uint8_t *)pdata, 2, 1000);

// Devices supportsing readings via a RESTART condition without a(no STOP condition required)
ret = HAL_I2C_Mem_Read(&i2c_Handle, EEPROM_I2C_ADDRESS, addr, 1, &buf, 2, 1000);
*pdata = buf;

rt_kprintf("i2c read reg:0x%x,pdata:0x%x,ret:%d\n", addr, *pdata, ret);

__HAL_I2C_DISABLE(&i2c_Handle); // Disable the I2C master after transmission to minimize error flagstates
}

sf32lb58-lcd

sf32lb58-lcd

/// @brief Initialization work before power on EEPROM
/// @param
void EEPROM_init(void)
{
uint8_t slaveAddr = EEPROM_I2C_ADDRESS; // 7bit address of device
HAL_StatusTypeDef ret;
//1. pin mux
#ifdef SF32LB52X
HAL_RCC_EnableModule(RCC_MOD_I2C2); // enable i2c2
#define EXAMPLE_I2C I2C2 // i2c number of cpu
#define EXAMPLE_I2C_IRQ I2C2_IRQn // i2c number of interruput when using interrupte mode
HAL_PIN_Set(PAD_PA41, I2C2_SCL, PIN_PULLUP, 1); // i2c io select
HAL_PIN_Set(PAD_PA42, I2C2_SDA, PIN_PULLUP, 1);
#elif defined(SF32LB58X)
#define EXAMPLE_I2C I2C6 // i2c number of cpu
#define EXAMPLE_I2C_IRQ I2C6_IRQn // i2c number of interruput when using interrupte mode
HAL_PIN_Set(PAD_PB28, I2C6_SCL, PIN_PULLUP, 1); // i2c io select
HAL_PIN_Set(PAD_PB29, I2C6_SDA, PIN_PULLUP, 1);
#elif defined(SF32LB56X)
#define EXAMPLE_I2C I2C3 // i2c number of cpu
#define EXAMPLE_I2C_IRQ I2C3_IRQn // i2c number of interruput when using interrupte mode
HAL_PIN_Set(PAD_PA20, I2C3_SCL, PIN_PULLUP, 1); // i2c io select
HAL_PIN_Set(PAD_PA12, I2C3_SDA, PIN_PULLUP, 1);
#endif

// 2. i2c init
i2c_Handle.Instance = EXAMPLE_I2C;
i2c_Handle.Mode = HAL_I2C_MODE_MASTER; // i2c master mode
i2c_Handle.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; // i2c 7bits device address mode
i2c_Handle.Init.ClockSpeed = 400000; // i2c speed (hz)
i2c_Handle.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
ret = HAL_I2C_Init(&i2c_Handle);
rt_kprintf("EEPROM_init%d\n", ret);
}

/// @brief IPerforms initialization work before power oning on the EEPROM .
/// @param
void EEPROM_init(void)
{
uint8_t slaveAddr = EEPROM_I2C_ADDRESS; // 7-bit device address of device
HAL_StatusTypeDef ret;
//1. pPin muxltiplexing configuration
#ifdef SF32LB52X
HAL_RCC_EnableModule(RCC_MOD_I2C2); // eEnable i2c2 I2C2 clock
#define EXAMPLE_I2C I2C2 // i2c number of cpuCPU I2C instance
#define EXAMPLE_I2C_IRQ I2C2_IRQn // i2c number ofI2C interruput when usingnumber for interrupte mode
HAL_PIN_Set(PAD_PA41, I2C2_SCL, PIN_PULLUP, 1); // i2c io selectSelect I2C IO
HAL_PIN_Set(PAD_PA42, I2C2_SDA, PIN_PULLUP, 1);
#elif defined(SF32LB58X)
#define EXAMPLE_I2C I2C6 // i2c number of cpuCPU I2C instance
#define EXAMPLE_I2C_IRQ I2C6_IRQn // i2c number ofI2C interruput when usingnumber for interrupte mode
HAL_PIN_Set(PAD_PB28, I2C6_SCL, PIN_PULLUP, 1); // i2c io selectSelect I2C IO
HAL_PIN_Set(PAD_PB29, I2C6_SDA, PIN_PULLUP, 1);
#elif defined(SF32LB56X)
#define EXAMPLE_I2C I2C3 // i2c number of cpuCPU I2C instance
#define EXAMPLE_I2C_IRQ I2C3_IRQn // i2c number ofI2C interruput when usingnumber for interrupte mode
HAL_PIN_Set(PAD_PA20, I2C3_SCL, PIN_PULLUP, 1); // i2c io selectSelect I2C IO
HAL_PIN_Set(PAD_PA12, I2C3_SDA, PIN_PULLUP, 1);
#endif

// 2. i2c initI2C peripheral initialization
i2c_Handle.Instance = EXAMPLE_I2C;
i2c_Handle.Mode = HAL_I2C_MODE_MASTER; // i2cI2C master mode
i2c_Handle.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; // i2c 7-bits device addressing mode
i2c_Handle.Init.ClockSpeed = 400000; // i2cI2C clock speed (hHz)
i2c_Handle.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
ret = HAL_I2C_Init(&i2c_Handle);
rt_kprintf("EEPROM_init%d\n", ret);
}

PA41

PA41

SFBL
Serial:c2,Chip:4,Package:3,Rev:3 Reason:00000000
\ | /
- SiFli Corporation
/ | \ build on Nov 29 2024, 2.1.7 build 91ecc2d9
Copyright by SiFli team
mount /dev sucess
[I/drv.rtc] PSCLR=0x80000100 DivAI=128 DivAF=0 B=256
[I/drv.rtc] RTC use LXT RTC_CR=00000001
[I/drv.rtc] Init RTC, wake = 0
[I/drv.audprc] init 00 ADC_PATH_CFG0 0x606
[I/drv.audprc] HAL_AUDPRC_Init res 0
[I/drv.audcodec] HAL_AUDCODEC_Init res 0
[32m][I/TOUCH] Regist touch screen driver, probe=1203ba81 [0m]
call par CFG1(35bb)
fc 9, xtal 2000, pll 2123
call par CFG1(35bb)
fc 7, xtal 2000, pll 1698
Start i2c_eeprom demo!
EEPROM_init0
i2c write addr:0x1,data:0x11,ret:0
i2c write addr:0x2,data:0x22,ret:0
i2c write addr:0x3,data:0x33,ret:0
i2c write addr:0x4,data:0x44,ret:0
i2c read reg:0x1,pdata:0x11,ret:0
i2c read reg:0x2,pdata:0x22,ret:0
i2c read reg:0x3,pdata:0x33,ret:0
i2c read reg:0x4,pdata:0x44,ret:0
i2c_eeprom end!

SFBL
Serial:c2,Chip:4,Package:3,Rev:3 Reason:00000000
\ | /
- SiFli Corporation
/ | \ build on Nov 29 2024, 2.1.7 build 91ecc2d9
Copyright by SiFli team
mount /dev success
[I/drv.rtc] PSCLR=0x80000100 DivAI=128 DivAF=0 B=256
[I/drv.rtc] RTC use LXT RTC_CR=00000001
[I/drv.rtc] Init RTC, wake = 0
[I/drv.audprc] init 00 ADC_PATH_CFG0 0x606
[I/drv.audprc] HAL_AUDPRC_Init res 0
[I/drv.audcodec] HAL_AUDCODEC_Init res 0
[32m][I/TOUCH] Registered touch screen driver, probe=1203ba81 [0m]
call par CFG1(35bb)
fc 9, xtal 2000, pll 2123
call par CFG1(35bb)
fc 7, xtal 2000, pll 1698
Start i2c_eeprom demo!
EEPROM_init0
i2c write addr:0x1,data:0x11,ret:0
i2c write addr:0x2,data:0x22,ret:0
i2c write addr:0x3,data:0x33,ret:0
i2c write addr:0x4,data:0x44,ret:0
i2c read reg:0x1,pdata:0x11,ret:0
i2c read reg:0x2,pdata:0x22,ret:0
i2c read reg:0x3,pdata:0x33,ret:0
i2c read reg:0x4,pdata:0x44,ret:0
i2c_eeprom end!

PB28

PB28

[AT24C08SC]{1}

[AT24C08SC]{1}

12/2024

12/2024

3 (CONN1)

3 (CONN1)