openmv/lib/alif/Boards/DevKit-e7/Templates/FreeRTOS/SPI0_SPI1_app.c
iabdalkader daf2bb30da misc: Restructure repo.
Signed-off-by: iabdalkader <i.abdalkader@gmail.com>
2025-04-13 08:28:34 +02:00

412 lines
11 KiB
C

/* Copyright (C) 2023 Alif Semiconductor - All Rights Reserved.
* Use, distribution and modification of this code is permitted under the
* terms stated in the Alif Semiconductor Software License Agreement
*
* You should have received a copy of the Alif Semiconductor Software
* License Agreement with this file. If not, please write to:
* contact@alifsemi.com, or visit: https://alifsemi.com/license
*
*/
/**************************************************************************//**
* @file SPI0_SPI1_app.c
* @author Manoj A Murudi
* @email manoj.murudi@alifsemi.com
* @version V1.0.0
* @date 29-May-2023
* @brief FreeRTOS demo application for SPI0 and SPI1.
* - Data transfer between SPI0(master) and SPI1(slave).
* @bug None.
* @Note None.
******************************************************************************/
/* System Includes */
#include <stdio.h>
#include <stdlib.h>
/* include for Drivers */
#include "Driver_SPI.h"
#include "pinconf.h"
#include "RTE_Components.h"
#include CMSIS_device_header
/*RTOS Includes */
#include "FreeRTOS.h"
#include "FreeRTOSConfig.h"
#include "task.h"
#if defined(RTE_Compiler_IO_STDOUT)
#include "retarget_stdout.h"
#endif /* RTE_Compiler_IO_STDOUT */
/* Use below macro to specify transfer type
* 1 - Uses SPI Transfer function
* 0 - Uses SPI Send & Receive function
* */
#define DATA_TRANSFER_TYPE 1
#define SPI1 1 /* SPI1 instance */
#define SPI0 0 /* SPI0 instance */
extern ARM_DRIVER_SPI ARM_Driver_SPI_(SPI1);
ARM_DRIVER_SPI *ptrSPI1 = &ARM_Driver_SPI_(SPI1);
extern ARM_DRIVER_SPI ARM_Driver_SPI_(SPI0);
ARM_DRIVER_SPI *ptrSPI0 = &ARM_Driver_SPI_(SPI0);
/*Define for the FreeRTOS objects*/
#define SPI0_CALLBACK_EVENT 0x01
#define SPI1_CALLBACK_EVENT 0x02
/*Define for FreeRTOS*/
#define STACK_SIZE 1024
#define TIMER_SERVICE_TASK_STACK_SIZE configTIMER_TASK_STACK_DEPTH // 512
#define IDLE_TASK_STACK_SIZE configMINIMAL_STACK_SIZE // 1024
StackType_t IdleStack[2 * IDLE_TASK_STACK_SIZE];
StaticTask_t IdleTcb;
StackType_t TimerStack[2 * TIMER_SERVICE_TASK_STACK_SIZE];
StaticTask_t TimerTcb;
/* Thread id of thread */
TaskHandle_t spi_xHandle;
/****************************** FreeRTOS functions **********************/
void vApplicationGetIdleTaskMemory(StaticTask_t **ppxIdleTaskTCBBuffer,
StackType_t **ppxIdleTaskStackBuffer, uint32_t *pulIdleTaskStackSize) {
*ppxIdleTaskTCBBuffer = &IdleTcb;
*ppxIdleTaskStackBuffer = IdleStack;
*pulIdleTaskStackSize = IDLE_TASK_STACK_SIZE;
}
void vApplicationStackOverflowHook(TaskHandle_t pxTask, char *pcTaskName)
{
(void) pxTask;
for (;;);
}
void vApplicationGetTimerTaskMemory(StaticTask_t **ppxTimerTaskTCBBuffer,
StackType_t **ppxTimerTaskStackBuffer, uint32_t *pulTimerTaskStackSize)
{
*ppxTimerTaskTCBBuffer = &TimerTcb;
*ppxTimerTaskStackBuffer = TimerStack;
*pulTimerTaskStackSize = TIMER_SERVICE_TASK_STACK_SIZE;
}
void vApplicationIdleHook(void)
{
for (;;);
}
/*****************Only for FreeRTOS use *************************/
/**
* @fn static int32_t pinmux_config(void)
* @brief SPI1 & SPI0 pinmux configuration.
* @note none.
* @param none.
* @retval execution status.
*/
static int32_t pinmux_config(void)
{
int32_t ret = ARM_DRIVER_OK;
/* pinmux configurations for SPI0 pins (using B version pins) */
ret = pinconf_set(PORT_5, PIN_0, PINMUX_ALTERNATE_FUNCTION_4, PADCTRL_READ_ENABLE);
if (ret)
{
printf("ERROR: Failed to configure PINMUX for SPI0_MISO_PIN\n");
return ret;
}
ret = pinconf_set(PORT_5, PIN_1, PINMUX_ALTERNATE_FUNCTION_4, 0);
if (ret)
{
printf("ERROR: Failed to configure PINMUX for SPI0_MOSI_PIN\n");
return ret;
}
ret = pinconf_set(PORT_5, PIN_3, PINMUX_ALTERNATE_FUNCTION_3, 0);
if (ret)
{
printf("ERROR: Failed to configure PINMUX for SPI0_CLK_PIN\n");
return ret;
}
ret = pinconf_set(PORT_5, PIN_2, PINMUX_ALTERNATE_FUNCTION_4, 0);
if (ret)
{
printf("ERROR: Failed to configure PINMUX for SPI0_SS_PIN\n");
return ret;
}
/* pinmux configurations for SPI1 pins (using B version pins) */
ret = pinconf_set(PORT_8, PIN_3, PINMUX_ALTERNATE_FUNCTION_2, 0);
if (ret)
{
printf("ERROR: Failed to configure PINMUX for SPI1_MISO_PIN\n");
return ret;
}
ret = pinconf_set(PORT_8, PIN_4, PINMUX_ALTERNATE_FUNCTION_2, PADCTRL_READ_ENABLE);
if (ret)
{
printf("ERROR: Failed to configure PINMUX for SPI1_MOSI_PIN\n");
return ret;
}
ret = pinconf_set(PORT_8, PIN_5, PINMUX_ALTERNATE_FUNCTION_2, PADCTRL_READ_ENABLE);
if (ret)
{
printf("ERROR: Failed to configure PINMUX for SPI1_CLK_PIN\n");
return ret;
}
ret = pinconf_set(PORT_6, PIN_4, PINMUX_ALTERNATE_FUNCTION_4, PADCTRL_READ_ENABLE);
if (ret)
{
printf("ERROR: Failed to configure PINMUX for SPI1_SS_PIN\n");
return ret;
}
return ret;
}
/**
* @fn static void SPI0_cb_func (uint32_t event)
* @brief SPI0 callback function.
* @note none.
* @param event: SPI event.
* @retval none.
*/
static void SPI0_cb_func (uint32_t event)
{
BaseType_t xHigherPriorityTaskWoken = pdFALSE, xResult = pdFALSE;
if (event == ARM_SPI_EVENT_TRANSFER_COMPLETE)
{
xTaskNotifyFromISR(spi_xHandle, SPI0_CALLBACK_EVENT, eSetBits, &xHigherPriorityTaskWoken);
if (xResult == pdTRUE) { portYIELD_FROM_ISR( xHigherPriorityTaskWoken ); }
}
}
/**
* @fn static void SPI1_cb_func (uint32_t event)
* @brief SPI1 callback function.
* @note none.
* @param event: SPI event.
* @retval none.
*/
static void SPI1_cb_func (uint32_t event)
{
BaseType_t xHigherPriorityTaskWoken = pdFALSE, xResult = pdFALSE;
if (event == ARM_SPI_EVENT_TRANSFER_COMPLETE)
{
xTaskNotifyFromISR(spi_xHandle, SPI1_CALLBACK_EVENT, eSetBits, &xHigherPriorityTaskWoken);
if (xResult == pdTRUE) { portYIELD_FROM_ISR( xHigherPriorityTaskWoken ); }
}
}
/**
* @fn static void spi0_spi1_transfer(void *pvParameters)
* @brief demo application function for data transfer.
* @note none.
* @param pvParameters.
* @retval none.
*/
static void spi0_spi1_transfer(void *pvParameters)
{
uint32_t spi0_tx_buff, spi1_rx_buff = 0;
int32_t ret = ARM_DRIVER_OK;
BaseType_t xReturned;
uint32_t spi1_control, spi0_control;
#if DATA_TRANSFER_TYPE
uint32_t spi1_tx_buff, spi0_rx_buff = 0;
#endif
/*
* H/W connections on devkit:
* short SPI0 MISO (P5_0 -> J12-13 pin) and SPI1 MISO (P8_3 -> J14-15 pin).
* short SPI0 MOSI (P5_1 -> J12-15 pin) and SPI1 MOSI (P8_4 -> J14-17 pin).
* short SPI0 SCLK (P5_3 -> J14-5 pin) and SPI1 SCLK (P8_5 -> J14-19 pin).
* short SPI0 SS (P5_2 -> J12-17 pin) and SPI1 SS (P6_4 -> J12-22 pin).
* */
printf("*** Demo FreeRTOS app using SPI0 & SPI1 is starting ***\n");
ret = pinmux_config();
if (ret != ARM_DRIVER_OK)
{
printf("Error in pinmux configuration\n");
return;
}
/* SPI0 Configuration as master */
ret = ptrSPI0->Initialize(SPI0_cb_func);
if (ret != ARM_DRIVER_OK)
{
printf("ERROR: Failed to initialize the SPI0\n");
return;
}
ret = ptrSPI0->PowerControl(ARM_POWER_FULL);
if (ret != ARM_DRIVER_OK)
{
printf("ERROR: Failed to power SPI0\n");
goto error_spi0_uninitialize;
}
spi0_control = (ARM_SPI_MODE_MASTER | ARM_SPI_SS_MASTER_HW_OUTPUT | ARM_SPI_CPOL0_CPHA0 | ARM_SPI_DATA_BITS(32));
/* Baudrate is 1MHz */
ret = ptrSPI0->Control(spi0_control, 1000000);
if (ret != ARM_DRIVER_OK)
{
printf("ERROR: Failed to configure SPI0\n");
goto error_spi0_power_off;
}
/* SPI1 Configuration as slave */
ret = ptrSPI1->Initialize(SPI1_cb_func);
if (ret != ARM_DRIVER_OK)
{
printf("ERROR: Failed to initialize the SPI1\n");
goto error_spi0_power_off;
}
ret = ptrSPI1->PowerControl(ARM_POWER_FULL);
if (ret != ARM_DRIVER_OK)
{
printf("ERROR: Failed to power SPI1\n");
goto error_spi1_uninitialize;
}
spi1_control = (ARM_SPI_MODE_SLAVE | ARM_SPI_CPOL0_CPHA0 | ARM_SPI_DATA_BITS(32));
ret = ptrSPI1->Control(spi1_control, NULL);
if (ret != ARM_DRIVER_OK)
{
printf("ERROR: Failed to configure SPI1\n");
goto error_spi1_power_off;
}
ret = ptrSPI0->Control(ARM_SPI_CONTROL_SS, ARM_SPI_SS_ACTIVE);
if (ret != ARM_DRIVER_OK)
{
printf("ERROR: Failed to enable the slave select of SPI0\n");
goto error_spi1_power_off;
}
#if DATA_TRANSFER_TYPE
spi0_tx_buff = 0xAAAAAAAA;
spi1_tx_buff = 0x55555555;
ret = ptrSPI1->Transfer(&spi1_tx_buff, &spi1_rx_buff, 1);
if (ret != ARM_DRIVER_OK)
{
printf("ERROR: Failed SPI1 to configure as tx_rx\n");
goto error_spi1_power_off;
}
ret = ptrSPI0->Transfer(&spi0_tx_buff, &spi0_rx_buff, 1);
if (ret != ARM_DRIVER_OK)
{
printf("ERROR: Failed SPI0 to configure as tx_rx\n");
goto error_spi1_power_off;
}
#else
spi0_tx_buff = 0x12345678;
ret = ptrSPI1->Receive(&spi1_rx_buff, 1);
if (ret != ARM_DRIVER_OK)
{
printf("ERROR: SPI1 Failed to configure as receive only\n");
goto error_spi1_power_off;
}
ret = ptrSPI0->Send(&spi0_tx_buff, 1);
if (ret != ARM_DRIVER_OK)
{
printf("ERROR: SPI0 Failed to configure as send only\n");
goto error_spi1_power_off;
}
#endif
xReturned = xTaskNotifyWait(NULL,SPI1_CALLBACK_EVENT|SPI0_CALLBACK_EVENT,NULL, portMAX_DELAY);
if (xReturned != pdTRUE )
{
printf("\n\r Task Wait Time out expired \n\r");
goto error_spi1_power_off;
}
while (!((ptrSPI0->GetStatus().busy == 0) && (ptrSPI1->GetStatus().busy == 0)));
printf("Data Transfer completed\n");
printf("SPI1 received value : 0x%x\n", spi1_rx_buff);
#if DATA_TRANSFER_TYPE
printf("SPI0 received value : 0x%x\n", spi0_rx_buff);
#endif
error_spi1_power_off :
ret = ptrSPI1->PowerControl(ARM_POWER_OFF);
if (ret != ARM_DRIVER_OK)
{
printf("ERROR in SPI1 power off\n");
}
error_spi1_uninitialize :
ret = ptrSPI1->Uninitialize();
if (ret != ARM_DRIVER_OK)
{
printf("ERROR in SPI1 un-initialization\n");
}
error_spi0_power_off :
ret = ptrSPI0->PowerControl(ARM_POWER_OFF);
if (ret != ARM_DRIVER_OK)
{
printf("ERROR in SPI0 power off\n");
}
error_spi0_uninitialize :
ret = ptrSPI0->Uninitialize();
if (ret != ARM_DRIVER_OK)
{
printf("ERROR in SPI0 un-initialization\n");
}
printf("*** Demo FreeRTOS app using SPI0 & SPI1 is ended ***\n");
/* thread delete */
vTaskDelete(NULL);
}
/*----------------------------------------------------------------------------
* Main: Initialize and start the FreeRTOS Kernel
*---------------------------------------------------------------------------*/
int main( void )
{
#if defined(RTE_Compiler_IO_STDOUT_User)
int32_t ret;
ret = stdout_init();
if(ret != ARM_DRIVER_OK)
{
while(1)
{
}
}
#endif
/* System Initialization */
SystemCoreClockUpdate();
/* Create application main thread */
BaseType_t xReturned = xTaskCreate(spi0_spi1_transfer, "SPI_Thread", 216, NULL,configMAX_PRIORITIES-1, &spi_xHandle);
if (xReturned != pdPASS)
{
vTaskDelete(spi_xHandle);
return -1;
}
/* Start thread execution */
vTaskStartScheduler();
}