app_config_stm32.h

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/***************************************************************************/
#ifndef APP_CONFIG_STM32_H_
#define APP_CONFIG_STM32_H_
 
/******************************************************************************/
/***************************** Include Files **********************************/
/******************************************************************************/
#include <stdint.h>
 
#include "stm32_hal.h"
#include "stm32_i2c.h"
#include "stm32_irq.h"
#include "stm32_gpio_irq.h"
#include "stm32_spi.h"
#include "stm32_gpio.h"
#include "stm32_uart.h"
#include "stm32_pwm.h"
#include "stm32_dma.h"
 
/******************************************************************************/
/********************** Macros and Constants Definition ***********************/
/******************************************************************************/
/* Note: The SDP-K1 board with the STM32F469NI MCU has been used
* for developing the firmware. The below parameters will change depending
* on the controller used. */
#define TARGET_NAME                 SDP_K1
 
/* Pin mapping for AD4052 w.r.t Arduino Headers */
#define I2C_DEV_ID                  1    // I2C1
#define UART_MODULE                 5    // UART5
#define UART_IRQ                    UART5_IRQn
#define SPI_DEVICE_ID               1    // SPI1
#define SPI_CS_PIN_NUM              15   // PA_15
#define SPI_CS_PORT_BASE            GPIOA
#define SPI_CS_PORT_NUM             0    // PORTA = 0
#define CNV_PIN_NUM                 15   // PB_15
#define CNV_PORT_NUM                1    // PORTB = 1
#define CNV_PORT_BASE               GPIOB
#define GP0_PIN_NUM                 7    // PG_7
#define GP0_PORT_NUM                6    // PORTG = 6
#define GP1_PIN_NUM                 10   // PG_10
#define GP1_PORT_NUM                6    // PORTG = 6
#define BSY_PIN_NUM                 GP0_PIN_NUM
#define BSY_PORT_NUM                GP0_PORT_NUM
#define RESET_PIN_NUM               9    // PG_9
#define RESET_PORT_NUM              6    // PORTG = 6
#define TRIGGER_INT_ID              GP0_PIN_NUM
#define TRIGGER_GPIO_PORT           0    // Unused macro
#define TRIGGER_GPIO_PIN            GP0_PIN_NUM
#define MAX_SPI_SCLK                22500000
 
#define gpio_ops                    stm32_gpio_ops
#define spi_ops                     stm32_spi_ops
#define i2c_ops                     stm32_i2c_ops
#define uart_ops                    stm32_uart_ops
#define pwm_ops                     stm32_pwm_ops
#define trigger_gpio_irq_ops        stm32_gpio_irq_ops
#define dma_ops                     stm32_dma_ops
#define trigger_gpio_handle         0    // Unused macro
 
/* Timer specific macros used for calculating pwm
 * period and duty cycle */
#define TIMER_1_PRESCALER                  1
#define TIMER_2_PRESCALER                  0
#define TIMER_1_CLK_DIVIDER                2
#define TIMER_2_CLK_DIVIDER                2
#define TIMER_8_PRESCALER                  0
#define TIMER_8_CLK_DIVIDER                2
 
/* Timer Channels */
#define TIMER_CHANNEL_1                    1
#define TIMER_CHANNEL_2                    2
#define TIMER_CHANNEL_3                    3
 
#define TIMER1_ID                          1
#define TIMER2_ID                          2
#define TIMER8_ID                          8
 
#define Rx_DMA_IRQ_ID               DMA2_Stream0_IRQn
#define AD469x_TxDMA_CHANNEL_NUM    DMA_CHANNEL_7
#define AD469x_RxDMA_CHANNEL_NUM    DMA_CHANNEL_3
 
/* Define the max possible sampling (or output data) rate for a given platform.
 * This is also used to find the time period to trigger a periodic conversion event.
 * Note: Max possible ODR is 500KSPS per channel for burst/continuous data capture on
 * IIO client. This is derived by testing the firmware on STM32F469NI MCU @22Mhz SPI clock.
 * The max possible ODR can vary from board to board and data continuity is not guaranteed
 * above this ODR on IIO oscilloscope
 */
#if (INTERFACE_MODE == SPI_INTERRUPT)
#define SAMPLING_RATE                   (62500)
#define CONV_TRIGGER_DUTY_CYCLE_NSEC(x) (x / 10)
#else
#define SAMPLING_RATE                      (500000)
#define CHIP_SELECT_DUTY_CYCLE_NS          300
#endif
#define CONV_TRIGGER_PERIOD_NSEC(x)        (((float)(1.0 / x) * 1000000) * 1000)
 
#define AD469x_DMA_NUM_CHANNELS             2
 
/* PWM configuration for 22.5MHz SPI clock */
#define TX_TRIGGER_PERIOD       406
#define TX_TRIGGER_DUTY_RATIO   50
 
#define CNV_DUTY_RATIO_NS       1310
 
/******************************************************************************/
/********************** Public/Extern Declarations ****************************/
/******************************************************************************/
extern I2C_HandleTypeDef hi2c1;
extern SPI_HandleTypeDef hspi1;
extern DMA_HandleTypeDef hdma_spi1_rx;
extern TIM_HandleTypeDef htim1;
extern TIM_HandleTypeDef htim2;
extern DMA_HandleTypeDef hdma_tim1_ch3;
extern DMA_HandleTypeDef hdma_tim1_ch2;
extern TIM_HandleTypeDef htim12;
extern UART_HandleTypeDef huart5;
extern volatile bool data_ready;
 
extern struct stm32_uart_init_param stm32_uart_extra_init_params;
extern struct stm32_spi_init_param stm32_spi_extra_init_params;
extern struct stm32_gpio_init_param stm32_gpio_cnv_extra_init_params;
extern struct stm32_gpio_init_param stm32_gpio_gp0_extra_init_params;
extern struct stm32_gpio_init_param stm32_gpio_gp1_extra_init_params;
extern struct stm32_gpio_init_param stm32_gpio_reset_extra_init_params;
extern struct stm32_gpio_irq_init_param stm32_gpio_irq_extra_init_params;
extern struct stm32_gpio_init_param stm32_pwm_gpio_extra_init_params;
extern struct stm32_pwm_init_param stm32_pwm_cnv_extra_init_params;
#if (INTERFACE_MODE == SPI_DMA)
extern struct stm32_pwm_init_param stm32_cs_extra_init_params;
extern struct stm32_pwm_init_param stm32_tx_trigger_extra_init_params;
extern DMA_HandleTypeDef hdma_tim8_ch1;
extern struct stm32_dma_channel rxdma_channel;
extern struct stm32_dma_channel txdma_channel;
extern struct stm32_gpio_init_param stm32_cs_pwm_gpio_extra_init_params;
 
void receivecomplete_callback(DMA_HandleTypeDef* hdma);
void stm32_cnv_output_gpio_config(bool is_gpio);
void stm32_cs_output_gpio_config(bool is_gpio);
void stm32_abort_dma_transfer(void);
void stm32_timer_enable(void);
void stm32_timer_stop(void);
void tim8_config(void);
void tim1_config(void);
#endif
 
void stm32_system_init(void);
 
#endif /* APP_CONFIG_STM32_H_ */