twi_unit_tests.c File Reference

Unit tests for FreeRTOS TWI Interface Layer.

Copyright (c) 2011-2018 Microchip Technology Inc. and its subsidiaries.

#include <stdint.h>
#include <stdbool.h>
#include <board.h>
#include <sysclk.h>
#include <string.h>
#include <unit_test/suite.h>
#include <stdio_serial.h>
#include <twi.h>
#include <conf_test.h>
#include <conf_board.h>
#include <conf_example.h>
#include "FreeRTOS.h"
#include "task.h"
#include "freertos_twi_master.h"
#include "at24cxx.h"

Macros
#define	INTERNAL_WRITE_DELAY   (7 / portTICK_RATE_MS)
#define	PAGE_SIZE   128
#define	TOTAL_EEPROM_SIZE   65536
#define	TWI_CLOCK_HZ   400000

Functions
static void	create_twi_task (Twi *twi_base, uint16_t stack_depth_words, unsigned portBASE_TYPE task_priority)
int	main (void)
	Run TWI unit tests. More...
static void	prvSetupHardware (void)
static void	read_page_from_eeprom (uint16_t page)
static void	run_twi_test (const struct test_case *test)
static void	twi_eeprom_task (void *pvParameters)
void	vApplicationIdleHook (void)
void	vApplicationMallocFailedHook (void)
void	vApplicationStackOverflowHook (xTaskHandle pxTask, signed char *pcTaskName)
void	vApplicationTickHook (void)
	This function is called by FreeRTOS each tick. More...
static void	write_page_to_eeprom (uint16_t page)

Variables
static uint8_t	data_buffer [PAGE_SIZE]
static uint32_t	error_detected = pdFALSE
static freertos_twi_if	freertos_twi

#define INTERNAL_WRITE_DELAY   (7 / portTICK_RATE_MS)

Referenced by write_page_to_eeprom().

#define PAGE_SIZE   128

Referenced by read_page_from_eeprom(), run_twi_test(), and write_page_to_eeprom().

#define TOTAL_EEPROM_SIZE   65536

Referenced by run_twi_test().

#define TWI_CLOCK_HZ   400000

Referenced by create_twi_task().

static void create_twi_task ( Twi *  twi_base, uint16_t  stack_depth_words, unsigned portBASE_TYPE  task_priority  )

static

References configASSERT, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY, freertos_twi, freertos_twi_master_init(), NULL, sysclk_get_cpu_hz(), TWI_CLOCK_HZ, twi_eeprom_task(), TWI_I2C_MASTER, twi_set_speed(), USE_RX_ACCESS_MUTEX, USE_TX_ACCESS_SEM, WAIT_RX_COMPLETE, WAIT_TX_COMPLETE, and xTaskCreate.

Referenced by main().

int main

(

void

)

Run TWI unit tests.

References create_twi_task(), prvSetupHardware(), tskIDLE_PRIORITY, and vTaskStartScheduler().

static void prvSetupHardware ( void  )

static

References at24cxx_reset(), uart_rs232_options::baudrate, board_init(), stdio_serial_init(), sysclk_enable_peripheral_clock(), sysclk_init(), and usart_serial_options.

Referenced by main().

static void read_page_from_eeprom ( uint16_t  page )

static

References twi_packet::addr, twi_packet::addr_length, BOARD_AT24C_ADDRESS, twi_packet::buffer, twi_packet::chip, data_buffer, error_detected, freertos_twi, freertos_twi_read_packet, twi_packet::length, PAGE_SIZE, pdTRUE, portTICK_RATE_MS, portTickType, and STATUS_OK.

Referenced by run_twi_test().

static void run_twi_test ( const struct test_case *  test )

static

References data_buffer, error_detected, PAGE_SIZE, pdFALSE, pdTRUE, read_page_from_eeprom(), test_assert_true, TOTAL_EEPROM_SIZE, and write_page_to_eeprom().

Referenced by twi_eeprom_task().

static void twi_eeprom_task ( void *  pvParameters )

static

References DEFINE_TEST_ARRAY, DEFINE_TEST_CASE, DEFINE_TEST_SUITE, NULL, run_twi_test(), test_suite_run(), UNUSED, and vTaskDelete().

Referenced by create_twi_task().

void vApplicationIdleHook

(

void

)

void vApplicationMallocFailedHook

(

void

)

void vApplicationStackOverflowHook	(	xTaskHandle	pxTask,
		signed char *	pcTaskName
	)

void vApplicationTickHook

(

void

)

This function is called by FreeRTOS each tick.

static void write_page_to_eeprom ( uint16_t  page )

static

References twi_packet::addr, twi_packet::addr_length, BOARD_AT24C_ADDRESS, twi_packet::buffer, twi_packet::chip, data_buffer, error_detected, freertos_twi, freertos_twi_write_packet, INTERNAL_WRITE_DELAY, twi_packet::length, PAGE_SIZE, pdTRUE, portTICK_RATE_MS, portTickType, STATUS_OK, and vTaskDelay().

Referenced by run_twi_test().

uint8_t data_buffer[PAGE_SIZE]

static

Referenced by read_page_from_eeprom(), run_twi_test(), and write_page_to_eeprom().

uint32_t error_detected = pdFALSE

static

Referenced by read_page_from_eeprom(), run_twi_test(), and write_page_to_eeprom().

freertos_twi_if freertos_twi

static

Referenced by create_twi_task(), read_page_from_eeprom(), and write_page_to_eeprom().