hulk/xlsw_3dp_ultrasonic_300K
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases 2 Wiki Activity

规范第一版超声与红外代码函数，红外可以添加更多函数，待学习。同时修改CMakeList在生成bin与hex文件时的命名，以便区分。CMakeList与.h头文件的联动尚未实现。

Browse Source
This commit is contained in:
yelvlab
2024-10-10 14:56:13 +08:00
parent ea7d68e35e
commit 8ad278f76b
11 changed files with 133 additions and 1020 deletions
Download Patch File Download Diff File Expand all files Collapse all files

864
src/gd32e23x_hw_i2c.c
View File

@@ -1,864 +0,0 @@
#include <stdio.h>
#include <stdint.h>
#include "gd32e23x.h"
#include "systick.h"
#include "gd32e23x_hw_i2c.h"
#include "gd32e23x.h"
void i2c_struct_para_init(i2c_parameter_struct* initpara)
{
initpara->i2c_gpio_rcu = RCU_GPIOF;
initpara->i2c_gpio_port = GPIOF;
initpara->i2c_gpio_scl_pin = GPIO_PIN_1;
initpara->i2c_gpio_sda_pin = GPIO_PIN_0;
initpara->i2c_speed = 400000U;
initpara->i2c_dcty = I2C_DTCY_2;
initpara->i2c_addr7 = 0xA0;
}
void i2c_init(uint32_t i2c_periph, i2c_parameter_struct* initpara)
{
switch (i2c_periph){
case I2C0:
rcu_periph_clock_enable(RCU_I2C0);
rcu_periph_clock_enable(initpara->i2c_gpio_rcu);
gpio_af_set(I2C0_GPIO_PORT, I2C0_GPIO_AF, I2C0_GPIO_SDA_PIN | I2C0_GPIO_SCL_PIN);
gpio_output_options_set(I2C0_GPIO_PORT, GPIO_OTYPE_OD, GPIO_OSPEED_50MHZ, I2C0_GPIO_SDA_PIN | I2C0_GPIO_SCL_PIN);
i2c_clock_config(I2C0, I2C0_SPEED, I2C0_DCTY);
i2c_mode_addr_config(I2C0, I2C_I2CMODE_ENABLE, I2C_ADDFORMAT_7BITS, I2C0_ADDR7);
i2c_enable(I2C0);
i2c_ack_config(I2C0, I2C_ACK_ENABLE);
break;
case I2C1:
break;
default:
break;
}
}
/*!
\brief Enable IIC0 & NVIC
\param[in] none
\param[out] none
\retval none
*/
void i2c_init(uint32_t i2c_periph)
{
switch (i2c_periph) {
case I2C0:
rcu_periph_clock_enable(RCU_I2C0);
rcu_periph_clock_enable(I2C0_GPIO_RCU);
gpio_af_set(I2C0_GPIO_PORT, I2C0_GPIO_AF, I2C0_GPIO_SDA_PIN | I2C0_GPIO_SCL_PIN);
gpio_output_options_set(I2C0_GPIO_PORT, GPIO_OTYPE_OD, GPIO_OSPEED_50MHZ, I2C0_GPIO_SDA_PIN | I2C0_GPIO_SCL_PIN);
i2c_clock_config(I2C0, I2C0_SPEED, I2C0_DCTY);
i2c_mode_addr_config(I2C0, I2C_I2CMODE_ENABLE, I2C_ADDFORMAT_7BITS, I2C0_ADDR7);
i2c_enable(I2C0);
i2c_ack_config(I2C0, I2C_ACK_ENABLE);
break;
#ifdef I2C1_ENABLE
case I2C1:
rcu_periph_clock_enable(RCU_I2C1);
rcu_periph_clock_enable(I2C1_GPIO_RCU);
gpio_af_set(I2C1_GPIO_PORT, I2C1_GPIO_AF, I2C1_GPIO_SDA_PIN | I2C1_GPIO_SCL_PIN);
gpio_output_options_set(I2C1_GPIO_PORT, GPIO_OTYPE_OD, GPIO_OSPEED_50MHZ, I2C1_GPIO_SDA_PIN | I2C1_GPIO_SCL_PIN);
i2c_clock_config(I2C1, I2C1_SPEED, I2C1_DCTY);
i2c_mode_addr_config(I2C1, I2C_I2CMODE_ENABLE, I2C_ADDFORMAT_7BITS, I2C1_ADDR7);
i2c_enable(I2C1);
i2c_ack_config(I2C1, I2C_ACK_ENABLE);
break;
#endif
default:
break;
}
}
void i2c_bus_reset(void)
{
i2c_deinit(I2C0);
/* configure SDA/SCL for GPIO */
GPIO_BC(I2C0_GPIO_PORT) |= I2C0_GPIO_SDA_PIN | I2C0_GPIO_SCL_PIN;
gpio_output_options_set(I2C0_GPIO_PORT, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ, I2C0_GPIO_SDA_PIN | I2C0_GPIO_SCL_PIN);
delay_5_nop();
/* stop signal */
GPIO_BOP(I2C0_GPIO_PORT) |= I2C0_GPIO_SCL_PIN;
delay_5_nop();
GPIO_BOP(I2C0_GPIO_PORT) |= I2C0_GPIO_SDA_PIN;
/* connect I2C_SCL_PIN to I2C_SCL */
/* connect I2C_SDA_PIN to I2C_SDA */
gpio_output_options_set(I2C0_GPIO_PORT, GPIO_OTYPE_OD, GPIO_OSPEED_50MHZ, I2C0_GPIO_SDA_PIN | I2C0_GPIO_SCL_PIN);
/* configure the I2CX interface */
i2c_init(I2C0);
}
/*!
\brief TWI1(IIC0) read data from the IIC Slave Device
\param[in] Address: the IIC Slave Device's IIC Device Address
\param[in] RegisterAddr: the IIC Slave Device's internal address to start reading from
\param[in] RegisterLen: number of bytes to reads from the IIC Slave Device
\param[in] RegisterValue: pointer to the buffer that receives the data read from the IIC Slave Device
\param[out] RegisterValue: pointer to the buffer that receives the data read from the IIC Slave Device
\retval IIC_SUCCESS
*/
uint8_t i2c_master_receive(uint32_t i2c_periph, uint8_t Dev_Address, uint8_t)
uint8_t i2c_master_read_register1(unsigned char Address, unsigned char RegisterAddr, unsigned short RegisterLen, unsigned char *RegisterValue){
uint8_t state = I2C_START;
uint8_t read_cycle = 0;
uint16_t timeout = 0;
uint8_t i2c_timeout_flag = 0;
uint8_t IIC_SLAVE_ADDR = (Address << 1);
i2c_ack_config(I2C0, I2C_ACK_ENABLE);
while (!(i2c_timeout_flag))
{
switch (state)
{
case I2C_START:
if(RESET == read_cycle)
{
/* i2c master sends start signal only when the bus is idle */
while (i2c_flag_get(I2C0, I2C_FLAG_I2CBSY) && (timeout < i2c_timeout_flag))
{
timeout ++;
}
if(timeout < I2C_TIME_OUT)
{
/* whether to send ACK or not for the next byte */
if(2 == RegisterLen) {
i2c_ackpos_config(I2C0, I2C_ACKPOS_NEXT);
}
} else {
i2c_bus_reset();
timeout = 0;
state = I2C_START;
printf("i2c bus is busy in READ!\n");
}
}
/* send the start signal */
i2c_start_on_bus(I2C0);
timeout = 0;
state = I2C_SEND_ADDR;
break;
case I2C_SEND_ADDR:
/* i2c master sends START signal successfully */
while((!i2c_flag_get(I2C0, I2C_FLAG_SBSEND)) && (timeout < I2C_TIME_OUT))
{
timeout++;
}
if(timeout < I2C_TIME_OUT)
{
if(RESET == read_cycle)
{
i2c_master_addressing(I2C0, IIC_SLAVE_ADDR, I2C_TRANSMITTER);
state = I2C_CLEAR_ADDRESS_FLAG;
} else {
i2c_master_addressing(I2C0, IIC_SLAVE_ADDR, I2C_RECEIVER);
if(RegisterLen < 3) {
/* disable acknowledge */
i2c_ack_config(I2C0, I2C_ACK_DISABLE);
}
state = I2C_CLEAR_ADDRESS_FLAG;
}
timeout = 0;
} else {
timeout = 0;
state = I2C_START;
read_cycle = 0;
printf("i2c master sends start signal timeout in READ!\n");
}
break;
case I2C_CLEAR_ADDRESS_FLAG:
/* address flag set means i2c slave sends ACK */
while((!i2c_flag_get(I2C0, I2C_FLAG_ADDSEND)) && (timeout < I2C_TIME_OUT))
{
timeout++;
}
if(timeout < I2C_TIME_OUT)
{
i2c_flag_clear(I2C0, I2C_FLAG_ADDSEND);
if((SET == read_cycle) && (1 == RegisterLen)) {
/* send a stop condition to I2C bus */
i2c_stop_on_bus(I2C0);
}
timeout = 0;
state = I2C_TRANSMIT_DATA;
} else {
timeout = 0;
state = I2C_START;
read_cycle = 0;
printf("i2c master clears address flag timeout in READ!\n");
}
break;
case I2C_TRANSMIT_DATA:
if(RESET == read_cycle) {
/* wait until the transmit data buffer is empty */
while((!i2c_flag_get(I2C0, I2C_FLAG_TBE)) && (timeout < I2C_TIME_OUT)) {
timeout++;
}
if(timeout < I2C_TIME_OUT) {
/* send the EEPROM's internal address to write to : only one byte address */
i2c_data_transmit(I2C0, RegisterAddr);
timeout = 0;
} else {
timeout = 0;
state = I2C_START;
read_cycle = 0;
printf("i2c master wait data buffer is empty timeout in READ!\n");
}
/* wait until BTC bit is set */
while((!i2c_flag_get(I2C0, I2C_FLAG_BTC)) && (timeout < I2C_TIME_OUT)) {
timeout++;
}
if(timeout < I2C_TIME_OUT) {
timeout = 0;
state = I2C_START;
read_cycle++;
} else {
timeout = 0;
state = I2C_START;
read_cycle = 0;
printf("i2c master sends i2c_master_read_register1 internal address timeout in READ!\n");
}
} else {
while(RegisterLen) {
timeout++;
if(3 == RegisterLen) {
/* wait until BTC bit is set */
while(!i2c_flag_get(I2C0, I2C_FLAG_BTC));
/* disable acknowledge */
i2c_ack_config(I2C0, I2C_ACK_DISABLE);
}
if(2 == RegisterLen) {
/* wait until BTC bit is set */
while(!i2c_flag_get(I2C0, I2C_FLAG_BTC));
/* send a stop condition to I2C bus */
i2c_stop_on_bus(I2C0);
}
/* wait until RBNE bit is set */
if(i2c_flag_get(I2C0, I2C_FLAG_RBNE)) {
/* read a byte from the EEPROM */
*RegisterValue = i2c_data_receive(I2C0);
/* point to the next location where the byte read will be saved */
RegisterValue++;
/* decrement the read bytes counter */
RegisterLen--;
timeout = 0;
}
if(timeout > I2C_TIME_OUT) {
timeout = 0;
state = I2C_START;
read_cycle = 0;
printf("i2c master sends data timeout in READ!\n");
}
}
timeout = 0;
state = I2C_STOP;
}
break;
case I2C_STOP:
/* i2c master sends STOP signal successfully */
while((I2C_CTL0(I2C0) & I2C_CTL0_STOP) && (timeout < I2C_TIME_OUT)) {
timeout++;
}
if(timeout < I2C_TIME_OUT) {
timeout = 0;
state = I2C_END;
i2c_timeout_flag = I2C_OK;
} else {
timeout = 0;
state = I2C_START;
read_cycle = 0;
printf("i2c master sends stop signal timeout in READ!\n");
}
break;
default:
state = I2C_START;
read_cycle = 0;
i2c_timeout_flag = I2C_OK;
timeout = 0;
printf("i2c master sends start signal in READ.\n");
break;
}
}
return IIC_SUCCESS;
}
/*!
\brief TWI3(none) read data from the IIC Slave Device
\param[in] Address: the IIC Slave Device's IIC Device Address
\param[in] RegisterAddr: the IIC Slave Device's internal address to start reading from
\param[in] RegisterLen: number of bytes to reads from the IIC Slave Device
\param[in] RegisterValue: pointer to the buffer that receives the data read from the IIC Slave Device
\param[out] RegisterValue: pointer to the buffer that receives the data read from the IIC Slave Device
\retval IIC_SUCCESS
\note No TWI3(IIC3) - No operation - Error log.
*/
uint8_t i2c_master_read_register3(unsigned char Address, unsigned char RegisterAddr, unsigned short RegisterLen, unsigned char *RegisterValue){
__NOP();
#ifdef DEBUG_VERBOES
printf("\n[DebugVerboes]i2c_master_read_register3 @ i2c.c, no TWI3 \n");
#endif
return IIC_SUCCESS;
}
/*!
\brief TWI1(IIC0) read data from the IIC Slave Device
\param[in] Address: the IIC Slave Device's IIC Device Address
\param[in] len: number of bytes to reads from the IIC Slave Device
\param[in] data: pointer to the buffer that receives the data read from the IIC Slave Device
\param[out] data: pointer to the buffer that receives the data read from the IIC Slave Device
\retval IIC_SUCCESS
*/
uint8_t i2c_master_read_register1_raw(unsigned char Address, unsigned short len, unsigned char *data){
uint8_t state = I2C_START;
// uint8_t read_cycle = 0;
uint16_t timeout = 0;
uint8_t i2c_timeout_flag = 0;
unsigned char IIC_SLAVE_ADDR = (Address << 1);
i2c_ack_config(I2C0, I2C_ACK_ENABLE);
while (!(i2c_timeout_flag))
{
switch (state)
{
case I2C_START:
/* i2c master sends start signal only when the bus is idle */
while (i2c_flag_get(I2C0, I2C_FLAG_I2CBSY) && (timeout < i2c_timeout_flag))
{
timeout ++;
}
if(timeout < I2C_TIME_OUT)
{
/* whether to send ACK or not for the next byte */
if(2 == len) {
i2c_ackpos_config(I2C0, I2C_ACKPOS_NEXT);
}
} else {
i2c_bus_reset();
timeout = 0;
state = I2C_START;
printf("i2c bus is busy in READ!\n");
}
/* send the start signal */
i2c_start_on_bus(I2C0);
timeout = 0;
state = I2C_SEND_ADDR;
break;
case I2C_SEND_ADDR:
/* i2c master sends START signal successfully */
while((!i2c_flag_get(I2C0, I2C_FLAG_SBSEND)) && (timeout < I2C_TIME_OUT))
{
timeout++;
}
if(timeout < I2C_TIME_OUT)
{
i2c_master_addressing(I2C0, IIC_SLAVE_ADDR, I2C_RECEIVER);
if(len < 3) {
/* disable acknowledge */
i2c_ack_config(I2C0, I2C_ACK_DISABLE);
}
state = I2C_CLEAR_ADDRESS_FLAG;
timeout = 0;
} else {
timeout = 0;
state = I2C_START;
// read_cycle = 0;
printf("i2c master sends start signal timeout in READ!\n");
}
break;
case I2C_CLEAR_ADDRESS_FLAG:
/* address flag set means i2c slave sends ACK */
while((!i2c_flag_get(I2C0, I2C_FLAG_ADDSEND)) && (timeout < I2C_TIME_OUT))
{
timeout++;
}
if(timeout < I2C_TIME_OUT)
{
i2c_flag_clear(I2C0, I2C_FLAG_ADDSEND);
timeout = 0;
state = I2C_TRANSMIT_DATA;
} else {
timeout = 0;
state = I2C_START;
// read_cycle = 0;
printf("i2c master clears address flag timeout in READ!\n");
}
break;
case I2C_TRANSMIT_DATA:
while(len) {
timeout++;
if(3 == len) {
/* wait until BTC bit is set */
while(!i2c_flag_get(I2C0, I2C_FLAG_BTC));
/* disable acknowledge */
i2c_ack_config(I2C0, I2C_ACK_DISABLE);
}
if(2 == len) {
/* wait until BTC bit is set */
while(!i2c_flag_get(I2C0, I2C_FLAG_BTC));
/* send a stop condition to I2C bus */
i2c_stop_on_bus(I2C0);
}
/* wait until RBNE bit is set */
if(i2c_flag_get(I2C0, I2C_FLAG_RBNE)) {
/* read a byte from the EEPROM */
*data = i2c_data_receive(I2C0);
/* point to the next location where the byte read will be saved */
data++;
/* decrement the read bytes counter */
len--;
timeout = 0;
}
if(timeout > I2C_TIME_OUT) {
timeout = 0;
state = I2C_START;
// read_cycle = 0;
printf("i2c master sends data timeout in READ!\n");
}
}
timeout = 0;
state = I2C_STOP;
// }
break;
case I2C_STOP:
/* i2c master sends STOP signal successfully */
while((I2C_CTL0(I2C0) & I2C_CTL0_STOP) && (timeout < I2C_TIME_OUT)) {
timeout++;
}
if(timeout < I2C_TIME_OUT) {
timeout = 0;
state = I2C_END;
i2c_timeout_flag = I2C_OK;
} else {
timeout = 0;
state = I2C_START;
// read_cycle = 0;
printf("i2c master sends stop signal timeout in READ!\n");
}
break;
default:
state = I2C_START;
// read_cycle = 0;
i2c_timeout_flag = I2C_OK;
timeout = 0;
printf("i2c master sends start signal in READ.\n");
break;
}
}
return IIC_SUCCESS;
}
/*!
\brief TWI3(none) read data from the IIC Slave Device with no regisiter address
\param[in] Address: the IIC Slave Device's IIC Device Address
\param[in] len: number of bytes to reads from the IIC Slave Device
\param[in] data: pointer to the buffer that receives the data read from the IIC Slave Device
\param[out] data: pointer to the buffer that receives the data read from the IIC Slave Device
\retval IIC_SUCCESS
\note No TWI3(IIC3) - No operation - Error log.
*/
uint8_t i2c_master_read_register3_raw(unsigned char Address, unsigned short len, unsigned char *data){
__NOP();
#ifdef DEBUG_VERBOES
printf("\n[DebugVerboes]i2c_master_read_register3_raw @ i2c.c, no TWI3 \n");
#endif
return IIC_SUCCESS;
}
/*!
\brief TWI1(IIC0) write data to the IIC Slave Device
\param[in] Address: the IIC Slave Device's IIC Device Address
\param[in] RegisterAddr: the IIC Slave Device's internal address to start writing to
\param[in] RegisterLen: number of bytes to write to the IIC Slave Device
\param[in] RegisterValue: pointer to the buffer that transfer the data write to the IIC Slave Device
\param[out] RegisterValue: pointer to the buffer that transfer the data write to the IIC Slave Device
\retval IIC_SUCCESS
*/
uint8_t i2c_master_write_register1(unsigned char Address, unsigned char RegisterAddr, unsigned short RegisterLen, unsigned char *RegisterValue)
{
uint8_t state = I2C_START;
uint16_t timeout = 0;
uint8_t i2c_timeout_flag = 0;
unsigned char IIC_SLAVE_ADDR = (Address << 1);
/* enable acknowledge */
i2c_ack_config(I2C0, I2C_ACK_ENABLE);
while(!(i2c_timeout_flag)) {
switch(state) {
case I2C_START:
/* i2c master sends start signal only when the bus is idle */
while(i2c_flag_get(I2C0, I2C_FLAG_I2CBSY) && (timeout < I2C_TIME_OUT)) {
timeout++;
}
if(timeout < I2C_TIME_OUT) {
i2c_start_on_bus(I2C0);
timeout = 0;
state = I2C_SEND_ADDR;
} else {
i2c_bus_reset();
timeout = 0;
state = I2C_START;
printf("i2c bus is busy in WRITE!\n");
}
break;
case I2C_SEND_ADDR:
/* i2c master sends START signal successfully */
while((!i2c_flag_get(I2C0, I2C_FLAG_SBSEND)) && (timeout < I2C_TIME_OUT)) {
timeout++;
}
if(timeout < I2C_TIME_OUT) {
i2c_master_addressing(I2C0, IIC_SLAVE_ADDR, I2C_TRANSMITTER);
timeout = 0;
state = I2C_CLEAR_ADDRESS_FLAG;
} else {
timeout = 0;
state = I2C_START;
printf("i2c master sends start signal timeout in WRITE!\n");
}
break;
case I2C_CLEAR_ADDRESS_FLAG:
/* address flag set means i2c slave sends ACK */
while((!i2c_flag_get(I2C0, I2C_FLAG_ADDSEND)) && (timeout < I2C_TIME_OUT)) {
timeout++;
}
if(timeout < I2C_TIME_OUT) {
i2c_flag_clear(I2C0, I2C_FLAG_ADDSEND);
timeout = 0;
state = I2C_TRANSMIT_DATA;
} else {
timeout = 0;
state = I2C_START;
printf("i2c master clears address flag timeout in WRITE!\n");
}
break;
case I2C_TRANSMIT_DATA:
/* wait until the transmit data buffer is empty */
while((!i2c_flag_get(I2C0, I2C_FLAG_TBE)) && (timeout < I2C_TIME_OUT)) {
timeout++;
}
if(timeout < I2C_TIME_OUT) {
/* send the EEPROM's internal address to write to : only one byte address */
i2c_data_transmit(I2C0, RegisterAddr);
timeout = 0;
} else {
timeout = 0;
state = I2C_START;
printf("i2c master sends i2c_master_write_register1 internal address timeout in WRITE!\n");
}
/* wait until BTC bit is set */
while((!i2c_flag_get(I2C0, I2C_FLAG_BTC)) && (timeout < I2C_TIME_OUT)) {
timeout++;
}
if(timeout < I2C_TIME_OUT) {
timeout = 0;
} else {
timeout = 0;
state = I2C_START;
printf("i2c master sends data timeout in WRITE!\n");
}
while(RegisterLen--) {
i2c_data_transmit(I2C0, *RegisterValue);
/* point to the next byte to be written */
RegisterValue++;
/* wait until BTC bit is set */
while((!i2c_flag_get(I2C0, I2C_FLAG_BTC)) && (timeout < I2C_TIME_OUT)) {
timeout++;
}
if(timeout < I2C_TIME_OUT) {
timeout = 0;
} else {
timeout = 0;
state = I2C_START;
printf("i2c master sends data timeout in WRITE!\n");
}
}
timeout = 0;
state = I2C_STOP;
break;
case I2C_STOP:
/* send a stop condition to I2C bus */
i2c_stop_on_bus(I2C0);
/* i2c master sends STOP signal successfully */
while((I2C_CTL0(I2C0) & I2C_CTL0_STOP) && (timeout < I2C_TIME_OUT)) {
timeout++;
}
if(timeout < I2C_TIME_OUT) {
timeout = 0;
state = I2C_END;
i2c_timeout_flag = I2C_OK;
} else {
timeout = 0;
state = I2C_START;
printf("i2c master sends stop signal timeout in WRITE!\n");
}
break;
default:
state = I2C_START;
i2c_timeout_flag = I2C_OK;
timeout = 0;
printf("i2c master sends start signal in WRITE.\n");
break;
}
}
return IIC_SUCCESS;
}
/*!
\brief TWI1(IIC0) write data to the IIC Slave Device with no regisiter address
\param[in] Address: the IIC Slave Device's IIC Device Address
\param[in] len: number of bytes to write to the IIC Slave Device
\param[in] data: pointer to the buffer that transfer the data write to the IIC Slave Device
\param[out] data: pointer to the buffer that transfer the data write to the IIC Slave Device
\retval IIC_SUCCESS
*/
uint8_t i2c_master_write_register1_raw(unsigned char Address, unsigned short len, unsigned char *data){
uint8_t state = I2C_START;
uint16_t timeout = 0;
uint8_t i2c_timeout_flag = 0;
unsigned char IIC_SLAVE_ADDR = (Address << 1);
/* enable acknowledge */
i2c_ack_config(I2C0, I2C_ACK_ENABLE);
while(!(i2c_timeout_flag)) {
switch(state) {
case I2C_START:
/* i2c master sends start signal only when the bus is idle */
while(i2c_flag_get(I2C0, I2C_FLAG_I2CBSY) && (timeout < I2C_TIME_OUT)) {
timeout++;
}
if(timeout < I2C_TIME_OUT) {
i2c_start_on_bus(I2C0);
timeout = 0;
state = I2C_SEND_ADDR;
} else {
i2c_bus_reset();
timeout = 0;
state = I2C_START;
printf("i2c bus is busy in WRITE!\n");
}
break;
case I2C_SEND_ADDR:
/* i2c master sends START signal successfully */
while((!i2c_flag_get(I2C0, I2C_FLAG_SBSEND)) && (timeout < I2C_TIME_OUT)) {
timeout++;
}
if(timeout < I2C_TIME_OUT) {
i2c_master_addressing(I2C0, IIC_SLAVE_ADDR, I2C_TRANSMITTER);
timeout = 0;
state = I2C_CLEAR_ADDRESS_FLAG;
} else {
timeout = 0;
state = I2C_START;
printf("i2c master sends start signal timeout in WRITE!\n");
}
break;
case I2C_CLEAR_ADDRESS_FLAG:
/* address flag set means i2c slave sends ACK */
while((!i2c_flag_get(I2C0, I2C_FLAG_ADDSEND)) && (timeout < I2C_TIME_OUT)) {
timeout++;
}
if(timeout < I2C_TIME_OUT) {
i2c_flag_clear(I2C0, I2C_FLAG_ADDSEND);
timeout = 0;
state = I2C_TRANSMIT_DATA;
} else {
timeout = 0;
state = I2C_START;
printf("i2c master clears address flag timeout in WRITE!\n");
}
break;
case I2C_TRANSMIT_DATA:
/* wait until the transmit data buffer is empty */
while((!i2c_flag_get(I2C0, I2C_FLAG_TBE)) && (timeout < I2C_TIME_OUT)) {
timeout++;
}
while(len--) {
i2c_data_transmit(I2C0, *data);
/* point to the next byte to be written */
data++;
/* wait until BTC bit is set */
while((!i2c_flag_get(I2C0, I2C_FLAG_BTC)) && (timeout < I2C_TIME_OUT)) {
timeout++;
}
if(timeout < I2C_TIME_OUT) {
timeout = 0;
} else {
timeout = 0;
state = I2C_START;
printf("i2c master sends data timeout in WRITE!\n");
}
}
timeout = 0;
state = I2C_STOP;
break;
case I2C_STOP:
/* send a stop condition to I2C bus */
i2c_stop_on_bus(I2C0);
/* i2c master sends STOP signal successfully */
while((I2C_CTL0(I2C0) & I2C_CTL0_STOP) && (timeout < I2C_TIME_OUT)) {
timeout++;
}
if(timeout < I2C_TIME_OUT) {
timeout = 0;
state = I2C_END;
i2c_timeout_flag = I2C_OK;
} else {
timeout = 0;
state = I2C_START;
printf("i2c master sends stop signal timeout in WRITE!\n");
}
break;
default:
state = I2C_START;
i2c_timeout_flag = I2C_OK;
timeout = 0;
printf("i2c master sends start signal in WRITE.\n");
break;
}
}
return IIC_SUCCESS;
}
int read_ir_mlx90614(void)
{
uint8_t Data[5];
int inttemp_ir=0;
uint32_t TIMEOUT=0;
while(TIMEOUT<10000&&i2c_flag_get(I2C0,I2C_FLAG_I2CBSY))
TIMEOUT++;
if(TIMEOUT>=10000)
{
//printf("ERROR0\r\n");
return -410;
}
TIMEOUT=0;
I2C_GenerateSTART(I2C0,ENABLE);
while(TIMEOUT<10000&&!I2C_CheckEvent(I2C0,I2C_EVENT_MASTER_MODE_SELECT))
TIMEOUT++;
if(TIMEOUT>=10000)
{
//printf("ERROR1\r\n");
return -410;
}
// I2C_AcknowledgeConfig(I2C0,DISABLE);
TIMEOUT=0;
I2C_Send7bitAddress(I2C0,0XB4,I2C_Direction_Transmitter);
while(TIMEOUT<10000&&!I2C_CheckEvent(I2C0,I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED))
TIMEOUT++;
if(TIMEOUT>=10000)
{
printf("ERROR2\r\n");
return -410;
}
I2C_SendData(I2C0,0x07);
TIMEOUT=0;
I2C_GenerateSTART(I2C0,ENABLE);
while(TIMEOUT<10000&&!I2C_CheckEvent(I2C0,I2C_EVENT_MASTER_MODE_SELECT))
TIMEOUT++;
if(TIMEOUT>=10000)
{
//printf("ERROR3\r\n");
return -410;
}
TIMEOUT=0;
I2C_Send7bitAddress(I2C0,0XB4,I2C_Direction_Receiver);
while(TIMEOUT<10000&&!I2C_CheckEvent(I2C0,I2C_EVENT_MASTER_BYTE_RECEIVED ))
TIMEOUT++;
if(TIMEOUT>=10000)
{
//printf("ERROR4\r\n");
return -410;
}
//I2C_AcknowledgeConfig(I2C0,DISABLE);
TIMEOUT=0;
Data[0]=I2C_ReceiveData(I2C0);
while(TIMEOUT<10000&&!I2C_CheckEvent(I2C0,I2C_EVENT_MASTER_BYTE_RECEIVED))
TIMEOUT++;
if(TIMEOUT>=10000)
{
//printf("ERROR5\r\n");
return -410;
}
TIMEOUT=0;
Data[1]=I2C_ReceiveData(I2C0);
while(TIMEOUT<10000&&!I2C_CheckEvent(I2C0,I2C_EVENT_MASTER_BYTE_RECEIVED))
TIMEOUT++;
if(TIMEOUT>=10000)
{
//printf("ERROR6\r\n");
return -410;
}
TIMEOUT=0;
Data[2]=I2C_ReceiveData(I2C0);
while(TIMEOUT<10000&&!I2C_CheckEvent(I2C0,I2C_EVENT_MASTER_BYTE_RECEIVED))
TIMEOUT++;
if(TIMEOUT>=10000)
{
//printf("ERROR7\r\n");
return -410;
}
I2C_AcknowledgeConfig(I2C0,DISABLE);
Data[3]=I2C_ReceiveData(I2C0);
while(TIMEOUT<10000&&!I2C_CheckEvent(I2C0,I2C_EVENT_MASTER_BYTE_RECEIVED))
TIMEOUT++;
if(TIMEOUT>=10000)
{
//printf("ERROR11\r\n");
return -410;
}
I2C_GenerateSTOP(I2C0,ENABLE);
I2C_AcknowledgeConfig(I2C0,ENABLE);
//printf("data:%x,%x,%x\r\n",Data[0],Data[1],Data[2]);
inttemp_ir=(int)((Data[0]+Data[1]*255)*0.2-2731.5);
// printf("temp:%d\r\n",inttemp_ir);
if(inttemp_ir<-400)
inttemp_ir=-400;
if(inttemp_ir>850)
inttemp_ir=850;
//
return inttemp_ir;
}

22
src/gd32e23x_it.c
View File

@@ -38,7 +38,7 @@ OF SUCH DAMAGE.
#include "systick.h"
#include "ultrasonic_driver.h"
__IO uint32_t capture_value;
__IO uint32_t g_capture_value;
/*!
\brief this function handles NMI exception
@@ -102,6 +102,12 @@ void SysTick_Handler(void)
{
}
/**
* @brief This function handles TIMER5 interrupt request.
* @param[in] none
* @param[out] none
* @retval None
*/
void TIMER5_IRQHandler(void) {
if (timer_interrupt_flag_get(LED_TIMER, TIMER_INT_FLAG_UP) == SET)
{
@@ -119,6 +125,12 @@ void TIMER5_IRQHandler(void) {
}
}
/**
* @brief This function handles TIMER15 interrupt request.
* @param[in] none
* @param[out] none
* @retval None
*/
void TIMER15_IRQHandler(void) {
if (timer_interrupt_flag_get(TIMER15, TIMER_INT_FLAG_UP) == SET)
{
@@ -130,11 +142,17 @@ void TIMER15_IRQHandler(void) {
}
}
/**
* @brief This function handles external lines 0 to 1 interrupt request
* @param[in] none
* @param[out] none
* @retval None
*/
void EXTI0_1_IRQHandler(void) {
if (exti_interrupt_flag_get(EXTI_0) == SET)
{
exti_interrupt_flag_clear(EXTI_0);
capture_value = timer_channel_capture_value_register_read(TIMER16, TIMER_CH_0);
g_capture_value = timer_channel_capture_value_register_read(TIMER16, TIMER_CH_0);
timer_disable(TIMER16);
exti_interrupt_disable(EXTI_0);
}

14
src/main.c
View File

@@ -13,7 +13,7 @@
#include "ultrasonic_driver.h"
#include "mlx90614.h"
extern uint32_t capture_value;
extern uint32_t g_capture_value;
uint16_t distance_uint16;
/*!
@@ -27,8 +27,8 @@ int main(void)
/* configure systick */
systick_config();
/* configure ultrasonic board hardware */
ultrasonic_transmit_config();
ultrasonic_receive_config();
UltraSonic_Transmit_Config();
UltraSonic_Receive_Config();
MLX90614_I2CConfig();
@@ -49,13 +49,13 @@ int main(void)
{
delay_ms(ULTRASONIC_TRAN_US);
ultrasonic_pwm_out_cycles(ULTRASONIC_CYCLES);
UltraSonic_PwmOut_Cycles(ULTRASONIC_CYCLES);
delay_ms(2);
printf("cap_val:%ld\t", capture_value);
printf("cap_val:%ld\t", g_capture_value);
const char* result = (capture_value <= CAPTURE_VALUE_MAX) ? "Distance: %d\t" : "Over Range\t";
distance_uint16 = calculate_distance(capture_value);
const char* result = (g_capture_value <= CAPTURE_VALUE_MAX) ? "Distance: %d\t" : "Over Range\t";
distance_uint16 = UltraSonic_CalcDistance(g_capture_value);
printf(result, distance_uint16);
printf("Temp:%d\n", MLX90614_GetObjectTemperature());

12
src/mlx90614.c
View File

@@ -7,6 +7,12 @@
#include "systick.h"
#include <stdio.h>
/**
* @brief This function configure the I2C peripheral & GPIO
* @param[in] none
* @param[out] none
* @retval None
*/
void MLX90614_I2CConfig(void) {
rcu_periph_clock_enable(RCU_IR_GPIO);
rcu_periph_clock_enable(RCU_I2C);
@@ -27,6 +33,12 @@ void MLX90614_I2CConfig(void) {
i2c_ack_config(IR_I2C, I2C_ACK_ENABLE);
}
/**
* @brief This function read object temperature
* @param[in] none
* @param[out] temp_raw: object temperature
* @retval None
*/
uint16_t MLX90614_GetObjectTemperature(void) {
uint8_t data[3] = {0};
uint16_t temp_raw = 0;

24
src/ultrasonic_driver.c
View File

@@ -54,7 +54,7 @@ void usart_config(void)
usart_enable(USART0_PHY);
}
void ultrasonic_config(void)
void UltraSonic_GPIO_Config(void)
{
rcu_periph_clock_enable(US_TRAN_GPIO_RCU);
@@ -92,14 +92,14 @@ void ultrasonic_config(void)
timer_interrupt_enable(US_TRAN_TIMER, TIMER_INT_UP);
}
void ultrasonic_transmit_config(void)
void UltraSonic_Transmit_Config(void)
{
led_config();
usart_config();
ultrasonic_config();
UltraSonic_GPIO_Config();
}
void ultrasonic_pwm_out_cycles(const uint8_t cycles)
void UltraSonic_PwmOut_Cycles(const uint8_t cycles)
{
uint8_t current_cycle = 0;
@@ -123,7 +123,7 @@ void ultrasonic_pwm_out_cycles(const uint8_t cycles)
// }
}
void ultrasonic_transmit_delay(const uint16_t micro_second)
void UltraSonic_Transmit_Delay(const uint16_t micro_second)
{
rcu_periph_clock_enable(US_TRAN_DELAY_RCU);
timer_deinit(US_TRAN_DELAY_TIMER);
@@ -143,7 +143,7 @@ void ultrasonic_transmit_delay(const uint16_t micro_second)
nvic_irq_enable(TIMER15_IRQn, 1U);
}
void receive_exti_config(void)
void UltraSonic_ReceExti_Config(void)
{
rcu_periph_clock_enable(US_FB_GPIO_RCU);
rcu_periph_clock_enable(US_FB_EXTI_RCU);
@@ -158,7 +158,7 @@ void receive_exti_config(void)
// exti_interrupt_enable(EXTI_0);
}
void ultrasonic_echo_timer_config(void)
void UltraSonic_EchoTimer_Config(void)
{
rcu_periph_clock_enable(US_ECHO_RCU);
timer_deinit(US_ECHO_TIMER);
@@ -182,14 +182,14 @@ void ultrasonic_echo_timer_config(void)
timer_input_capture_config(US_ECHO_TIMER, US_ECHO_CH, &timer_icinitpara);
}
void ultrasonic_receive_config(void)
void UltraSonic_Receive_Config(void)
{
ultrasonic_transmit_delay(TIME_CORRECTION_US);
receive_exti_config();
ultrasonic_echo_timer_config();
UltraSonic_Transmit_Delay(TIME_CORRECTION_US);
UltraSonic_ReceExti_Config();
UltraSonic_EchoTimer_Config();
}
uint16_t calculate_distance(uint32_t us_value)
uint16_t UltraSonic_CalcDistance(uint32_t us_value)
{
uint16_t distace = (TIME_CORRECTION_US + us_value) * 17;
/*