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jhChun
2026-04-08 16:58:54 +09:00
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project/ble_peripheral/ble_app_vivaMayo/ada2200_spi.c Normal file
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/*******************************************************************************
* @file ada2200_spi.c
* @author CandyPops Co.
* @version V1.0.1
* @date 2022-09-05
* @brief ADA2200 Lock-in Amplifier SPI driver (uses shared SPI2 bus)
******************************************************************************/
#include "sdk_common.h"
#include <stdbool.h>
#include "nrf.h"
#include "nrf_gpio.h"
#include "app_error.h"
#include "boards.h"
#include "nrf_delay.h"
#include "nrf_log.h"
#include "ada2200_spi.h"
#include "spi2_bus.h" /* Shared SPI2 bus */
#include "debug_print.h"
/* Use CS pin from shared bus definition */
#define ADA2200_CS_PIN SPI2_CS_ADA2200
//static uint8_t ada2200_startR[] ={ 0x00, 0x00, 0x81 }; /* {addr 16bit, data}, Reset for Defaults */
static uint8_t ada2200_start0[] ={ 0x00, 0x00, 0x18 }; /* {addr 16bit, data}, Set SDIO input only, Activate SDO */
static uint8_t ada2200_start1[] ={ 0x00, 0x2B, 0x06 }; /* {addr 16bit, data}, Clock Configuration */
static uint8_t ada2200_start2[] ={ 0x00, 0x2A, 0x18 }; /* {addr 16bit, data}, Enable Mixer, Select SDO output for Pin 13, OFF RCLK. */
static uint8_t ada2200_start3[] ={ 0x00, 0x29, 0x23 }; /* 0x27 {addr 16bit, data}, Disable SYNCO output, Select SYNCO edge location (Sync timing adjustment) */
static uint8_t ada2200_start4[] ={ 0x00, 0x2C, 0x01 }; /* {addr 16bit, data}, Enable RCLK output */
static uint8_t ada2200_stop0[] ={ 0x00, 0x00, 0x18 }; /* {addr 16bit, data}, Set SDIO input only, Activate SDO */
static uint8_t ada2200_stop1[] ={ 0x00, 0x2B, 0x06 }; /* {addr 16bit, data}, Clock Configuration */
static uint8_t ada2200_stop2[] ={ 0x00, 0x2A, 0x10 }; /* {addr 16bit, data}, Enable Mixer, Select SDO output for Pin 13, OFF RCLK. */
static uint8_t ada2200_stop3[] ={ 0x00, 0x29, 0x01 }; /* 0x07 {addr 16bit, data}, Disable SYNCO output, Select SYNCO edge location (Sync timing adjustment) */
static uint8_t ada2200_stop4[] ={ 0x00, 0x2C, 0x00 }; /* {addr 16bit, data}, Enable RCLK output */
static uint8_t m_tx_buf[3]; /**< TX buffer. */
static uint8_t m_length = sizeof(m_tx_buf); /**< Transfer length. */
void ada2200_spi_write(const void * data, size_t size)
{
/* Ensure bus is initialized */
if (!spi2_bus_is_initialized()) {
DBG_PRINTF("[ADA] auto-init SPI2\r\n");
spi2_bus_init();
}
memcpy(m_tx_buf, data, size);
/* Use shared SPI2 bus with manual CS control */
nrf_gpio_pin_clear(ADA2200_CS_PIN);
spi2_bus_transfer(m_tx_buf, size, NULL, 0);
nrf_gpio_pin_set(ADA2200_CS_PIN);
}
extern void ada2200_start(void)
{
//ada2200_spi_write(ada2200_startR, m_length);
DBG_PRINTF("[ADA] start...\r\n");
ada2200_spi_write(ada2200_start0, m_length);
DBG_PRINTF("[ADA] cmd0 OK\r\n");
nrf_delay_us(2);
ada2200_spi_write(ada2200_start1, m_length);
nrf_delay_us(2);
ada2200_spi_write(ada2200_start2, m_length);
nrf_delay_us(2);
ada2200_spi_write(ada2200_start3, m_length);
nrf_delay_us(2);
ada2200_spi_write(ada2200_start4, m_length);
nrf_delay_us(2);
}
extern void ada2200_stop(void)
{
ada2200_spi_write(ada2200_stop0, m_length);
nrf_delay_us(2);
ada2200_spi_write(ada2200_stop1, m_length);
nrf_delay_us(2);
ada2200_spi_write(ada2200_stop2, m_length);
nrf_delay_us(2);
ada2200_spi_write(ada2200_stop3, m_length);
nrf_delay_us(2);
ada2200_spi_write(ada2200_stop4, m_length);
nrf_delay_us(2);
}
extern void ada2200_init(void)
{
DBG_PRINTF("[ADA] init...\r\n");
/* Initialize shared SPI2 bus (handles already-initialized case) */
ret_code_t err = spi2_bus_init();
if (err != NRF_SUCCESS) {
APP_ERROR_CHECK(err);
}
DBG_PRINTF("[ADA] init OK\r\n");
/* CS pin is configured by spi2_bus_init() */
}
extern void ada2200_uninit(void)
{
/* Don't uninit the shared bus - other devices may be using it */
/* Just ensure CS is deasserted */
nrf_gpio_pin_set(ADA2200_CS_PIN);
}