esp-idf 4.3.5,ESP32-C3,spi 作为master,控制ch623芯片,给个参考程序
时间: 2024-02-24 13:58:28 浏览: 122
【stm32+tmc5130】程序-通过spi总线控制多个电机
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好的,我可以给你提供一个基本的参考程序,你可以根据自己的需要进行修改和完善。以下是一个简单的示例程序,用于实现ESP32-C3作为SPI Master控制ch623芯片:
```c
#include "driver/spi_master.h"
#include "esp_err.h"
// SPI总线配置参数
#define SPI_BUS HSPI_HOST
#define SPI_FREQ 1000000
#define SPI_MODE 0
#define SPI_MSBFIRST 1
// ch623芯片控制命令
#define CMD_RESET 0x01
#define CMD_VOLUME 0x02
// ch623芯片音量控制参数
#define VOL_LEFT 0x3f
#define VOL_RIGHT 0x3f
// SPI总线句柄
spi_device_handle_t spi_dev;
// 初始化SPI总线
void spi_master_init(void)
{
esp_err_t ret;
spi_bus_config_t buscfg = {
.miso_io_num = -1,
.mosi_io_num = 23,
.sclk_io_num = 18,
.quadwp_io_num = -1,
.quadhd_io_num = -1,
.max_transfer_sz = 0,
};
spi_device_interface_config_t devcfg = {
.command_bits = 8,
.address_bits = 0,
.dummy_bits = 0,
.mode = SPI_MODE,
.duty_cycle_pos = 128,
.cs_ena_posttrans = 3,
.cs_ena_pretrans = 0,
.clock_speed_hz = SPI_FREQ,
.input_delay_ns = 0,
.spics_io_num = 5,
.flags = 0,
.queue_size = 1,
.pre_cb = NULL,
.post_cb = NULL,
.tx_buffer = NULL,
.rx_buffer = NULL,
};
ret = spi_bus_initialize(SPI_BUS, &buscfg, 1);
ESP_ERROR_CHECK(ret);
ret = spi_bus_add_device(SPI_BUS, &devcfg, &spi_dev);
ESP_ERROR_CHECK(ret);
}
// ch623芯片复位
void ch623_reset(void)
{
esp_err_t ret;
uint8_t cmd = CMD_RESET;
spi_transaction_t t = {
.length = 8,
.tx_buffer = &cmd,
};
ret = spi_device_transmit(spi_dev, &t);
ESP_ERROR_CHECK(ret);
}
// ch623芯片音量控制
void ch623_volume(uint8_t left, uint8_t right)
{
esp_err_t ret;
uint8_t cmd = CMD_VOLUME;
uint8_t data[2] = {left, right};
spi_transaction_t t = {
.length = 24,
.tx_data = &cmd,
.rx_data = NULL,
.flags = SPI_TRANS_USE_RXDATA,
};
ret = spi_device_transmit(spi_dev, &t);
ESP_ERROR_CHECK(ret);
t.length = 16;
t.tx_data = data;
ret = spi_device_transmit(spi_dev, &t);
ESP_ERROR_CHECK(ret);
}
void app_main(void)
{
spi_master_init();
ch623_reset();
ch623_volume(VOL_LEFT, VOL_RIGHT);
}
```
以上代码中,`spi_master_init()`函数用于初始化SPI总线,并创建一个SPI设备句柄;`ch623_reset()`函数用于向ch623芯片发送复位命令;`ch623_volume()`函数用于向ch623芯片发送音量控制命令和参数。你可以根据自己的需要修改这些函数的参数和实现细节,以满足具体的应用需求。
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