From 44cf0426e5598bfe200f12326b910181147d696e Mon Sep 17 00:00:00 2001 From: yelvlab Date: Wed, 11 Dec 2024 15:42:11 +0800 Subject: [PATCH] recevice function --- inc/LDC1612.h | 2 +- inc/main.h | 1 + src/LDC1612.c | 26 ++++++++++-------- src/gd32e23x_it.c | 20 -------------- src/main.c | 67 ++++++++++++++++++++++++----------------------- 5 files changed, 51 insertions(+), 65 deletions(-) diff --git a/inc/LDC1612.h b/inc/LDC1612.h index 891ab9f..fb9ff93 100644 --- a/inc/LDC1612.h +++ b/inc/LDC1612.h @@ -58,7 +58,7 @@ typedef enum { void I2C_config(void); void I2C_scan(void); -int LDC1612_IIC_read_16bits(uint8_t reg, uint16_t *data); +int LDC1612_IIC_read_16bits(void); diff --git a/inc/main.h b/inc/main.h index e899813..c4891c7 100644 --- a/inc/main.h +++ b/inc/main.h @@ -43,6 +43,7 @@ OF SUCH DAMAGE. #define LED_IRQ TIMER16_IRQn void led_config(void); +void iicSendData(void); void iicReceiveData(void); #endif /* MAIN_H */ diff --git a/src/LDC1612.c b/src/LDC1612.c index ad50dda..2fb3073 100644 --- a/src/LDC1612.c +++ b/src/LDC1612.c @@ -97,8 +97,11 @@ void I2C_scan(void) { } } -int LDC1612_IIC_read_16bits(uint8_t reg, uint16_t *data) { - uint32_t timeout = 0; +int LDC1612_IIC_read_16bits(void) { + uint8_t data[2] = {0}; + uint16_t raw_temp = 0; + uint16_t timeout = 0; + i2c_ack_config(I2C0, I2C_ACK_ENABLE); while (i2c_flag_get(I2C0, I2C_FLAG_I2CBSY) && (timeout < I2C_TIME_OUT)) //判断IIC总线是否忙，发送起始信号 @@ -117,7 +120,7 @@ int LDC1612_IIC_read_16bits(uint8_t reg, uint16_t *data) { i2c_master_addressing(I2C0, LDC1612_ADDR, I2C_TRANSMITTER); timeout = 0; } else { - return -1; // 超时返回错误 + return -2; // 超时返回错误 } while (!i2c_flag_get(I2C0, I2C_FLAG_ADDSEND) && (timeout < I2C_TIME_OUT)) @@ -126,17 +129,17 @@ int LDC1612_IIC_read_16bits(uint8_t reg, uint16_t *data) { i2c_flag_clear(I2C0, I2C_FLAG_ADDSEND); timeout = 0; } else { - return -1; // 超时返回错误 + return -3; // 超时返回错误 } while (!i2c_flag_get(I2C0, I2C_FLAG_TBE) && (timeout < I2C_TIME_OUT)) //判断地址是否发送完成，然后发送寄存器地址 timeout++; if (timeout < I2C_TIME_OUT) { - i2c_data_transmit(I2C0, reg); + i2c_data_transmit(I2C0, READ_DEVICE_ID); timeout = 0; // i2c_start_on_bus(I2C0); } else { - return -1; // 超时返回错误 + return -4; // 超时返回错误 } while (i2c_flag_get(I2C0, I2C_FLAG_BTC) && (timeout < I2C_TIME_OUT)) //判断发送缓冲器是否为空，为空后（发送完毕）重新发送开始信号 @@ -145,7 +148,7 @@ int LDC1612_IIC_read_16bits(uint8_t reg, uint16_t *data) { i2c_start_on_bus(I2C0); timeout = 0; } else { - return -1; // 超时返回错误 + return -5; // 超时返回错误 } while (!i2c_flag_get(I2C0, I2C_FLAG_SBSEND) && (timeout < I2C_TIME_OUT)) { @@ -155,7 +158,7 @@ int LDC1612_IIC_read_16bits(uint8_t reg, uint16_t *data) { i2c_master_addressing(I2C0, LDC1612_ADDR, I2C_RECEIVER); timeout = 0; } else { - return -1; // 超时返回错误 + return -6; // 超时返回错误 } while (!i2c_flag_get(I2C0, I2C_FLAG_ADDSEND) && (timeout < I2C_TIME_OUT)) @@ -164,7 +167,7 @@ int LDC1612_IIC_read_16bits(uint8_t reg, uint16_t *data) { i2c_flag_clear(I2C0, I2C_FLAG_ADDSEND); timeout = 0; } else { - return -1; // 超时返回错误 + return -7; // 超时返回错误 } // 读取第一个字节的数据 @@ -175,7 +178,7 @@ int LDC1612_IIC_read_16bits(uint8_t reg, uint16_t *data) { data[0] = i2c_data_receive(I2C0); timeout = 0; } else { - return -1; // 超时返回错误 + return -8; // 超时返回错误 } i2c_ack_config(I2C0, I2C_ACK_DISABLE); // 关闭发送ACK，它会在下一个字节完成后发送NAK @@ -188,10 +191,11 @@ int LDC1612_IIC_read_16bits(uint8_t reg, uint16_t *data) { data[1] = i2c_data_receive(I2C0); timeout = 0; } else { - return -1; // 超时返回错误 + return -9; // 超时返回错误 } i2c_stop_on_bus(I2C0); + printf("device id = %x\r\n", (data[0] <<8 | data[1])); return 0; } \ No newline at end of file diff --git a/src/gd32e23x_it.c b/src/gd32e23x_it.c index 12b5a1e..fd03276 100644 --- a/src/gd32e23x_it.c +++ b/src/gd32e23x_it.c @@ -99,26 +99,6 @@ void SysTick_Handler(void) { } -void TIMER13_IRQHandler(void) -{ - if (timer_interrupt_flag_get(TIMER13, TIMER_INT_FLAG_UP) == SET) - { - timer_interrupt_flag_clear(TIMER13, TIMER_INT_FLAG_UP); - static uint8_t led_status = 0; - if (led_status) - { - //! turn on led & reconfig timer13 period to 19000(1900ms) - gpio_bit_write(GPIOB, GPIO_PIN_1, RESET); - timer_autoreload_value_config(TIMER13, 19200); - } else { - //! turn off led & reconfig timer13 period to 1000(100ms) - gpio_bit_write(GPIOB, GPIO_PIN_1, SET); - timer_autoreload_value_config(TIMER13, 800); - } - led_status = !led_status; - } -} - /** * @brief This function handles TIMER5 interrupt request. * @param[in] none diff --git a/src/main.c b/src/main.c index 280706e..a51e786 100644 --- a/src/main.c +++ b/src/main.c @@ -40,6 +40,23 @@ void led_config(void) nvic_irq_enable(LED_IRQ, 2); } +void iicSendData(void) +{ + while (i2c_flag_get(I2C0, I2C_FLAG_I2CBSY)); + i2c_start_on_bus(I2C0); + printf("1\r\n"); + while (!i2c_flag_get(I2C0, I2C_FLAG_SBSEND)); + i2c_master_addressing(I2C0, LDC1612_ADDR, I2C_TRANSMITTER); + printf("2\r\n"); + while (!i2c_flag_get(I2C0, I2C_FLAG_ADDSEND)); + i2c_flag_clear(I2C0, I2C_FLAG_ADDSEND); + printf("3\r\n"); + while (!i2c_flag_get(I2C0, I2C_FLAG_TBE)); + i2c_data_transmit(I2C0, 0x7E); + printf("4\r\n"); + i2c_start_on_bus(I2C0); +} + void iicReceiveData(void) { uint16_t data[3] = {0}; @@ -87,11 +104,11 @@ int main(void) printf("XLSW-3DP-LDC1612! V0.0.1\r\n"); printf("\r\n"); - uint16_t data[3] = {0}; + // uint16_t data[3] = {0}; // I2C _scan(); - delay_ms(1000); + delay_ms(200); // while (i2c_flag_get(I2C0, I2C_FLAG_I2CBSY)); // i2c_start_on_bus(I2C0); @@ -105,51 +122,35 @@ int main(void) // while (!i2c_flag_get(I2C0, I2C_FLAG_TBE)); // i2c_data_transmit(I2C0, 0x7E); // printf("4\r\n"); - // - // // delay_us(2); - // while (!i2c_flag_get(I2C0, I2C_FLAG_TBE)); - // - // // i2c_start_on_bus(I2C0); + // i2c_start_on_bus(I2C0); + // // i2c_stop_on_bus(I2C0); + + + // delay_ms(100); + // i2c_start_on_bus(I2C0); + // delay_ms(100); // i2c_stop_on_bus(I2C0); - // printf("5\r\n"); - // while (!i2c_flag_get(I2C0, I2C_FLAG_SBSEND)); - // i2c_master_addressing(I2C0, LDC1612_ADDR, I2C_RECEIVER); - // printf("6\r\n"); - // while (!i2c_flag_get(I2C0, I2C_FLAG_ADDSEND)); - // i2c_flag_clear(I2C0, I2C_FLAG_ADDSEND); - // printf("7\r\n"); - // i2c_ack_config(I2C0, I2C_ACK_DISABLE); - // while (!i2c_flag_get(I2C0, I2C_FLAG_RBNE)); - // data[0] = i2c_data_receive(I2C0); - // while (!i2c_flag_get(I2C0, I2C_FLAG_RBNE)); - // data[1] = i2c_data_receive(I2C0); - // while (!i2c_flag_get(I2C0, I2C_FLAG_RBNE)); - // data[2] = i2c_data_receive(I2C0); - - // // i2c_stop_on_bus(I2C0); // // i2c_ack_config(I2C0, I2C_ACK_ENABLE); - // - // printf("data[0] = %x\r\n", data[0]); - // printf("data[1] = %x\r\n", data[1]); - // printf("data[2] = %x\r\n", data[2]); - - - + iicSendData(); iicReceiveData(); + // int result = 0; + // result = LDC1612_IIC_read_16bits(); + // printf("result = %d\r\n", result); + while(1){ - printf("OK!!!\r\n"); - - delay_ms(1000); + // printf("OK!!!\r\n"); + // + // delay_ms(1000); } }