208 lines
6.3 KiB
C
208 lines
6.3 KiB
C
//
|
|
// Created by cfif on 11.02.23.
|
|
//
|
|
|
|
#include "i2c_application.h"
|
|
#include "delay_sec.h"
|
|
#include "stdbool.h"
|
|
|
|
/** @addtogroup AT32F437_periph_examples
|
|
* @{
|
|
*/
|
|
|
|
/** @addtogroup 437_I2C_communication_smbus I2C_communication_smbus
|
|
* @{
|
|
*/
|
|
|
|
#define I2C_TIMEOUT 0xFFFF
|
|
|
|
//#define I2Cx_CLKCTRL 0xB170FFFF //10K
|
|
//#define I2Cx_CLKCTRL 0xC0E06969 //50K
|
|
#define I2Cx_CLKCTRL 0x80504C4E //100K
|
|
//#define I2Cx_CLKCTRL 0x30F03C6B //200K
|
|
|
|
//0x6A
|
|
#define I2Cx_ADDRESS (0x60 << 1)
|
|
|
|
#define I2Cx_PORT I2C3
|
|
#define I2Cx_CLK CRM_I2C3_PERIPH_CLOCK
|
|
#define I2Cx_DMA DMA1
|
|
#define I2Cx_DMA_CLK CRM_DMA1_PERIPH_CLOCK
|
|
|
|
#define I2Cx_SCL_GPIO_CLK CRM_GPIOF_PERIPH_CLOCK
|
|
#define I2Cx_SCL_GPIO_PIN GPIO_PINS_14
|
|
#define I2Cx_SCL_GPIO_PinsSource GPIO_PINS_SOURCE14
|
|
#define I2Cx_SCL_GPIO_PORT GPIOF
|
|
#define I2Cx_SCL_GPIO_MUX GPIO_MUX_4
|
|
|
|
#define I2Cx_SDA_GPIO_CLK CRM_GPIOF_PERIPH_CLOCK
|
|
#define I2Cx_SDA_GPIO_PIN GPIO_PINS_15
|
|
#define I2Cx_SDA_GPIO_PinsSource GPIO_PINS_SOURCE15
|
|
#define I2Cx_SDA_GPIO_PORT GPIOF
|
|
#define I2Cx_SDA_GPIO_MUX GPIO_MUX_4
|
|
|
|
|
|
i2c_handle_type hi2cx;
|
|
|
|
|
|
void i2c_lowlevel_init(i2c_handle_type *hi2c) {
|
|
gpio_init_type gpio_init_structure;
|
|
|
|
if (hi2c->i2cx == I2Cx_PORT) {
|
|
/* i2c periph clock enable */
|
|
crm_periph_clock_enable(I2Cx_CLK, TRUE);
|
|
crm_periph_clock_enable(I2Cx_SCL_GPIO_CLK, TRUE);
|
|
crm_periph_clock_enable(I2Cx_SDA_GPIO_CLK, TRUE);
|
|
|
|
/* gpio configuration */
|
|
gpio_pin_mux_config(I2Cx_SCL_GPIO_PORT, I2Cx_SCL_GPIO_PinsSource, I2Cx_SCL_GPIO_MUX);
|
|
|
|
gpio_pin_mux_config(I2Cx_SDA_GPIO_PORT, I2Cx_SDA_GPIO_PinsSource, I2Cx_SDA_GPIO_MUX);
|
|
|
|
/* configure i2c pins: scl */
|
|
gpio_init_structure.gpio_drive_strength = GPIO_DRIVE_STRENGTH_STRONGER;
|
|
gpio_init_structure.gpio_mode = GPIO_MODE_MUX;
|
|
gpio_init_structure.gpio_out_type = GPIO_OUTPUT_OPEN_DRAIN;
|
|
gpio_init_structure.gpio_pull = GPIO_PULL_UP;
|
|
|
|
gpio_init_structure.gpio_pins = I2Cx_SCL_GPIO_PIN;
|
|
gpio_init(I2Cx_SCL_GPIO_PORT, &gpio_init_structure);
|
|
|
|
/* configure i2c pins: sda */
|
|
gpio_init_structure.gpio_pins = I2Cx_SDA_GPIO_PIN;
|
|
gpio_init(I2Cx_SDA_GPIO_PORT, &gpio_init_structure);
|
|
|
|
/* config i2c */
|
|
i2c_init(hi2c->i2cx, 0, I2Cx_CLKCTRL);
|
|
|
|
i2c_own_address1_set(hi2c->i2cx, I2C_ADDRESS_MODE_7BIT, I2Cx_ADDRESS);
|
|
}
|
|
}
|
|
|
|
const uint16_t V = 1700;
|
|
|
|
uint8_t reg0[2] = {0x0, V & 7};
|
|
uint8_t reg1[2] = {0x1, V >> 3};
|
|
uint8_t reg2[2] = {0x2, 0x1};
|
|
uint8_t reg3[2] = {0x3, 70};
|
|
uint8_t reg_read;
|
|
|
|
bool sendI2c() {
|
|
i2c_status_type i2c_status;
|
|
|
|
hi2cx.i2cx = I2Cx_PORT;
|
|
|
|
// i2c config
|
|
i2c_config(&hi2cx);
|
|
|
|
uint8_t adr = 1;
|
|
|
|
// 0 - запись
|
|
// 1 - чтение
|
|
|
|
// Reg0 - Напряжение
|
|
if ((i2c_status = i2c_master_transmit(&hi2cx, I2Cx_ADDRESS | 0, reg0, 2, I2C_TIMEOUT)) != I2C_OK) {
|
|
return false;
|
|
}
|
|
if ((i2c_status = i2c_master_transmit(&hi2cx, I2Cx_ADDRESS | 0, reg0, 1, I2C_TIMEOUT)) != I2C_OK) {
|
|
return false;
|
|
}
|
|
if ((i2c_status = i2c_master_receive(&hi2cx, I2Cx_ADDRESS | 1, ®_read, 1, I2C_TIMEOUT)) != I2C_OK) {
|
|
return false;
|
|
}
|
|
|
|
// Reg1 - Напряжение
|
|
if ((i2c_status = i2c_master_transmit(&hi2cx, I2Cx_ADDRESS | 0, reg1, 2, I2C_TIMEOUT)) != I2C_OK) {
|
|
return false;
|
|
}
|
|
if ((i2c_status = i2c_master_transmit(&hi2cx, I2Cx_ADDRESS | 0, reg1, 1, I2C_TIMEOUT)) != I2C_OK) {
|
|
return false;
|
|
}
|
|
if ((i2c_status = i2c_master_receive(&hi2cx, I2Cx_ADDRESS | 1, ®_read, 1, I2C_TIMEOUT)) != I2C_OK) {
|
|
return false;
|
|
}
|
|
|
|
|
|
// Reg3 - Ток
|
|
if ((i2c_status = i2c_master_transmit(&hi2cx, I2Cx_ADDRESS | 0, reg3, 2, I2C_TIMEOUT)) != I2C_OK) {
|
|
return false;
|
|
}
|
|
if ((i2c_status = i2c_master_transmit(&hi2cx, I2Cx_ADDRESS | 0, reg3, 1, I2C_TIMEOUT)) != I2C_OK) {
|
|
return false;
|
|
}
|
|
if ((i2c_status = i2c_master_receive(&hi2cx, I2Cx_ADDRESS | 1, ®_read, 1, I2C_TIMEOUT)) != I2C_OK) {
|
|
return false;
|
|
}
|
|
|
|
|
|
|
|
|
|
// Reg2 - Запуск
|
|
if ((i2c_status = i2c_master_transmit(&hi2cx, I2Cx_ADDRESS | 0, reg2, 2, I2C_TIMEOUT)) != I2C_OK) {
|
|
return false;
|
|
}
|
|
if ((i2c_status = i2c_master_transmit(&hi2cx, I2Cx_ADDRESS | 0, reg2, 1, I2C_TIMEOUT)) != I2C_OK) {
|
|
return false;
|
|
}
|
|
if ((i2c_status = i2c_master_receive(&hi2cx, I2Cx_ADDRESS | 1, ®_read, 1, I2C_TIMEOUT)) != I2C_OK) {
|
|
return false;
|
|
}
|
|
|
|
// delay_ms(20);
|
|
|
|
// Reg2
|
|
if ((i2c_status = i2c_master_transmit(&hi2cx, I2Cx_ADDRESS | 0, reg2, 1, I2C_TIMEOUT)) != I2C_OK) {
|
|
return false;
|
|
}
|
|
if ((i2c_status = i2c_master_receive(&hi2cx, I2Cx_ADDRESS | 1, ®_read, 1, I2C_TIMEOUT)) != I2C_OK) {
|
|
return false;
|
|
}
|
|
|
|
|
|
int a = 0;
|
|
// // start the request reception process
|
|
// if((i2c_status = i2c_master_transmit(&hi2cx, I2Cx_ADDRESS | 0, tx_buf, 1, I2C_TIMEOUT)) != I2C_OK)
|
|
// {
|
|
// return false;
|
|
// }
|
|
//
|
|
// // start the request reception process
|
|
// if((i2c_status = i2c_master_receive(&hi2cx, I2Cx_ADDRESS | 1, rx_buf, 1, I2C_TIMEOUT)) != I2C_OK)
|
|
// {
|
|
// return false;
|
|
// }
|
|
|
|
// // start the request reception process
|
|
// if((i2c_status = i2c_master_transmit(&hi2cx, I2Cx_ADDRESS | 0, tx_buf, 2, I2C_TIMEOUT)) != I2C_OK)
|
|
// {
|
|
// return false;
|
|
// }
|
|
// // start the request reception process
|
|
// if((i2c_status = i2c_master_transmit(&hi2cx, I2Cx_ADDRESS | 0, tx_buf, 1, I2C_TIMEOUT)) != I2C_OK)
|
|
// {
|
|
// return false;
|
|
// }
|
|
//
|
|
// // start the request reception process
|
|
// if((i2c_status = i2c_master_receive(&hi2cx, I2Cx_ADDRESS | 1, rx_buf, 1, I2C_TIMEOUT)) != I2C_OK)
|
|
// {
|
|
// return false;
|
|
// }
|
|
|
|
|
|
/*
|
|
// start the request reception process
|
|
if((i2c_status = i2c_smbus_master_transmit(&hi2cx, I2Cx_ADDRESS | 1, tx_buf, BUF_SIZE, I2C_TIMEOUT)) != I2C_OK)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
// start the request reception process
|
|
if((i2c_status = i2c_smbus_master_receive(&hi2cx, I2Cx_ADDRESS | 1, rx_buf, BUF_SIZE, I2C_TIMEOUT)) != I2C_OK)
|
|
{
|
|
return false;
|
|
}
|
|
*/
|
|
|
|
return true;
|
|
} |