Unit tests for TWI driver.

#include <stdint.h>
#include <stdbool.h>
#include <stdio.h>
#include <string.h>
#include <asf.h>
#include <conf_test.h>

Functions
int	main (void)
	Run TWI unit tests. More...

TWI unit test helper functions
static void	slave_process (void)
	Pointer to process data function for TWI slave. More...

	ISR (TWIF_TWIS_vect)
	Interrupt routine for TWI slave Calls TWI_SlaveInterruptHandler. More...

TWI unit test functions
static void	run_twi_master_send_test (const struct test_case *test)
	This test sends a packet from the master, and checks that the sending happens without errors. More...

static void	run_twi_slave_recv_test (const struct test_case *test)
	This test sends a packet from the master to the slave, and checks that the correct packet is received. More...

static void	run_twi_master_recv_test (const struct test_case *test)
	This test requests a packet to be sent from the slave, and checks that the correct packet is received by the master. More...

TWI unit test definitions
#define	TWI_MASTER TWIC
	TWI master module. More...

#define	TWI_MASTER_PORT PORTC
	TWI master module port. More...

#define	TWI_SLAVE TWIF
	TWI slave module. More...

#define	TWI_SPEED 50000
	TWI data transfer rate. More...

#define	TWI_MASTER_ADDR 0x50
	TWI master address. More...

#define	TWI_SLAVE_ADDR 0x60
	TWI slave address. More...

#define	PATTERN_TEST_LENGTH sizeof(test_pattern)
	Test Pattern size. More...

const uint8_t	test_pattern []
	Test Pattern. More...

TWI_Slave_t	slave
	TWI slave struct. More...

#define PATTERN_TEST_LENGTH sizeof(test_pattern)

Test Pattern size.

Referenced by main(), run_twi_master_recv_test(), run_twi_master_send_test(), and run_twi_slave_recv_test().

#define TWI_MASTER TWIC

TWI master module.

Referenced by run_twi_master_recv_test(), run_twi_master_send_test(), and run_twi_slave_recv_test().

#define TWI_MASTER_ADDR 0x50

TWI master address.

Referenced by run_twi_master_recv_test(), run_twi_master_send_test(), and run_twi_slave_recv_test().

#define TWI_MASTER_PORT PORTC

TWI master module port.

Referenced by main().

#define TWI_SLAVE TWIF

TWI slave module.

Referenced by run_twi_master_recv_test(), run_twi_master_send_test(), and run_twi_slave_recv_test().

#define TWI_SLAVE_ADDR 0x60

TWI slave address.

Referenced by run_twi_master_recv_test(), run_twi_master_send_test(), and run_twi_slave_recv_test().

#define TWI_SPEED 50000

TWI data transfer rate.

Referenced by main(), run_twi_master_recv_test(), run_twi_master_send_test(), and run_twi_slave_recv_test().

ISR ( TWIF_TWIS_vect )

Interrupt routine for TWI slave Calls TWI_SlaveInterruptHandler.

References TWI_SlaveInterruptHandler().

int main ( void )

Run TWI unit tests.

Initializes the clock system, board and serial output, then sets up the TWI unit test suite and runs it.

References usart_rs232_options::baudrate, board_init(), DEFINE_TEST_ARRAY, DEFINE_TEST_CASE, DEFINE_TEST_SUITE, run_twi_master_recv_test(), run_twi_master_send_test(), run_twi_slave_recv_test(), stdio_serial_init(), sysclk_init, test_suite_run(), TWI_MASTER_PORT, and usart_serial_options.

static void run_twi_master_recv_test ( const struct test_case * test )

static

This test requests a packet to be sent from the slave, and checks that the correct packet is received by the master.

Parameters

test	Current test case.

References twi_package_t::addr_length, cpu_irq_enable, PATTERN_TEST_LENGTH, TWI_Slave::receivedData, TWI_Slave::result, TWI_Slave::sendData, slave_process(), twi_options_t::speed, sysclk_enable_peripheral_clock(), sysclk_get_cpu_hz(), test_assert_true, test_pattern, TWI_BAUD, TWI_MASTER, TWI_MASTER_ADDR, twi_master_enable(), twi_master_init(), twi_master_read(), TWI_SLAVE, TWI_SLAVE_ADDR, TWI_SlaveInitializeDriver(), TWI_SlaveInitializeModule(), TWI_SPEED, TWIS_RESULT_OK, and TWIS_SEND_BUFFER_SIZE.

Referenced by main().

static void run_twi_master_send_test ( const struct test_case * test )

static

This test sends a packet from the master, and checks that the sending happens without errors.

Parameters

test	Current test case.

References twi_package_t::addr_length, cpu_irq_enable, PATTERN_TEST_LENGTH, slave_process(), twi_options_t::speed, STATUS_OK, sysclk_enable_peripheral_clock(), sysclk_get_cpu_hz(), test_assert_true, test_pattern, TWI_BAUD, TWI_MASTER, TWI_MASTER_ADDR, twi_master_enable(), twi_master_init(), twi_master_write(), TWI_SLAVE, TWI_SLAVE_ADDR, TWI_SlaveInitializeDriver(), TWI_SlaveInitializeModule(), and TWI_SPEED.

Referenced by main().

static void run_twi_slave_recv_test ( const struct test_case * test )

static

This test sends a packet from the master to the slave, and checks that the correct packet is received.

Parameters

test	Current test case.

References twi_package_t::addr_length, cpu_irq_enable, PATTERN_TEST_LENGTH, TWI_Slave::receivedData, TWI_Slave::result, slave_process(), twi_options_t::speed, sysclk_enable_peripheral_clock(), sysclk_get_cpu_hz(), test_assert_true, test_pattern, TWI_BAUD, TWI_MASTER, TWI_MASTER_ADDR, twi_master_enable(), twi_master_init(), twi_master_write(), TWI_SLAVE, TWI_SLAVE_ADDR, TWI_SlaveInitializeDriver(), TWI_SlaveInitializeModule(), TWI_SPEED, TWIS_RESULT_OK, and TWIS_SEND_BUFFER_SIZE.

Referenced by main().

static void slave_process ( void )

static

Pointer to process data function for TWI slave.

Referenced by run_twi_master_recv_test(), run_twi_master_send_test(), and run_twi_slave_recv_test().

TWI_Slave_t slave

TWI slave struct.

Referenced by trx_aes_wrrd(), trx_frame_read(), trx_frame_write(), trx_reg_read(), trx_reg_write(), trx_spi_init(), trx_sram_read(), and trx_sram_write().

const uint8_t test_pattern[]

Initial value:

= {
    0x55,
    0xA5,
    0x5A,
    0x77,
    0x99
}

Test Pattern.

Referenced by main(), run_twi_master_recv_test(), run_twi_master_send_test(), and run_twi_slave_recv_test().

Microchip® Advanced Software Framework

Functions

TWI unit test definitions