hulk/xlsw_3dp_LDC1612
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recevice function

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yelvlab 2024-12-12 15:48:48 +08:00
parent 44cf0426e5
commit de94a72f72
2 changed files with 25 additions and 20 deletions
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20
src/LDC1612.c
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@ -102,17 +102,17 @@ int LDC1612_IIC_read_16bits(void) {
uint16_t raw_temp = 0;
uint16_t timeout = 0;
i2c_ack_config(I2C0, I2C_ACK_ENABLE);
// 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
timeout++;
if (timeout < I2C_TIME_OUT) {
// 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
// timeout++;
// if (timeout < I2C_TIME_OUT) {
i2c_start_on_bus(I2C0);
timeout = 0;
} else {
printf("err\r\n");
return -1; // 超时返回错误
}
// timeout = 0;
// } else {
// printf("err\r\n");
// return -1; // 超时返回错误
// }
while (!i2c_flag_get(I2C0, I2C_FLAG_SBSEND) && (timeout < I2C_TIME_OUT)) //判断起始位是否发送，设置sensor地址并设置为写
timeout++;
@ -181,7 +181,7 @@ int LDC1612_IIC_read_16bits(void) {
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
// 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
// 读取第二个字节的数据
while (!i2c_flag_get(I2C0, I2C_FLAG_RBNE) && (timeout < I2C_TIME_OUT)) {

25
src/main.c
View File

@ -106,9 +106,9 @@ int main(void)
// uint16_t data[3] = {0};
// I2C _scan();
// I2C_scan();
delay_ms(200);
delay_ms(1000);
// while (i2c_flag_get(I2C0, I2C_FLAG_I2CBSY));
// i2c_start_on_bus(I2C0);
@ -136,21 +136,26 @@ int main(void)
//
// i2c_ack_config(I2C0, I2C_ACK_ENABLE);
iicSendData();
iicReceiveData();
// iicSendData();
// iicReceiveData();
// int result = 0;
// result = LDC1612_IIC_read_16bits();
// printf("result = %d\r\n", result);
int result = 0;
result = LDC1612_IIC_read_16bits();
printf("result = %d\r\n", result);
while(1){
// printf("OK!!!\r\n");
//
// delay_ms(1000);
delay_ms(1000);
printf("OK!!!\r\n");
// iicSendData();
// i2c_flag_clear(I2C0, I2C_FLAG_I2CBSY);
}
}