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test(spi_master): slightly modify the test

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This commit is contained in:
michael 2018-04-19 12:47:29 +08:00 committed by bot
parent 5cf7d3768d
commit 208d993de1
1 changed files with 142 additions and 112 deletions
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254
components/driver/test/test_spi_master.c
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@ -25,6 +25,35 @@
const static char TAG[] = "test_spi";
#define SPI_BUS_TEST_DEFAULT_CONFIG() {\
.miso_io_num=PIN_NUM_MISO, \
.mosi_io_num=PIN_NUM_MOSI,\
.sclk_io_num=PIN_NUM_CLK,\
.quadwp_io_num=-1,\
.quadhd_io_num=-1\
}
#define SPI_DEVICE_TEST_DEFAULT_CONFIG() {\
.clock_speed_hz=10*1000*1000,\
.mode=0,\
.spics_io_num=PIN_NUM_CS,\
.queue_size=16,\
.pre_cb=NULL, \
.cs_ena_pretrans = 0,\
.cs_ena_posttrans = 0,\
}
//steal register definition from gpio.c
const uint32_t GPIO_PIN_MUX_REG[GPIO_PIN_COUNT];
#define FUNC_SPI 1
#define FUNC_GPIO 2
void gpio_output_sel(uint32_t gpio_num, int func, uint32_t signal_idx)
{
PIN_FUNC_SELECT(GPIO_PIN_MUX_REG[gpio_num], func);
GPIO.func_out_sel_cfg[gpio_num].func_sel=signal_idx;
}
static void check_spi_pre_n_for(int clk, int pre, int n)
{
esp_err_t ret;
@ -231,7 +260,7 @@ TEST_CASE("SPI Master test, interaction of multiple devs", "[spi][ignore]") {
.clock_speed_hz=1000000,
.duty_cycle_pos=128,
.mode=0,
.spics_io_num=23,
.spics_io_num=23,
.queue_size=3,
};
spi_device_handle_t handle1=setup_spi_bus(80000, true);
@ -274,7 +303,7 @@ TEST_CASE("spi bus setting with different pin configs", "[spi]")
spi_bus_config_t cfg;
uint32_t flags_o;
uint32_t flags_expected;
ESP_LOGI(TAG, "test 6 native output pins...");
flags_expected = SPICOMMON_BUSFLAG_SCLK | SPICOMMON_BUSFLAG_MOSI | SPICOMMON_BUSFLAG_MISO | SPICOMMON_BUSFLAG_NATIVE_PINS | SPICOMMON_BUSFLAG_QUAD;
cfg = (spi_bus_config_t){.mosi_io_num = NATIVE_MOSI, .miso_io_num = NATIVE_MISO, .sclk_io_num = NATIVE_SCLK, .quadhd_io_num = NATIVE_HD, .quadwp_io_num = NATIVE_WP,
@ -323,7 +352,7 @@ TEST_CASE("spi bus setting with different pin configs", "[spi]")
ESP_LOGI(TAG, "test slave 5 output pins and MISO on input-only pin...");
flags_expected = SPICOMMON_BUSFLAG_SCLK | SPICOMMON_BUSFLAG_MOSI | SPICOMMON_BUSFLAG_MISO | SPICOMMON_BUSFLAG_WPHD;
cfg = (spi_bus_config_t){.mosi_io_num = 34, .miso_io_num = NATIVE_MISO, .sclk_io_num = NATIVE_SCLK, .quadhd_io_num = NATIVE_HD, .quadwp_io_num = NATIVE_WP,
.max_transfer_sz = 8, .flags = flags_expected};
.max_transfer_sz = 8, .flags = flags_expected};
TEST_ESP_OK(spicommon_bus_initialize_io(HSPI_HOST, &cfg, 0, flags_expected|SPICOMMON_BUSFLAG_SLAVE, &flags_o));
TEST_ASSERT_EQUAL_HEX32( flags_expected, flags_o );
@ -338,7 +367,7 @@ TEST_CASE("spi bus setting with different pin configs", "[spi]")
ESP_LOGI(TAG, "test slave 3 output pins and MISO on input-only pin...");
flags_expected = SPICOMMON_BUSFLAG_SCLK | SPICOMMON_BUSFLAG_MOSI | SPICOMMON_BUSFLAG_MISO;
cfg = (spi_bus_config_t){.mosi_io_num = 34, .miso_io_num = NATIVE_MISO, .sclk_io_num = NATIVE_SCLK, .quadhd_io_num = -1, .quadwp_io_num = -1,
.max_transfer_sz = 8, .flags = flags_expected};
.max_transfer_sz = 8, .flags = flags_expected};
TEST_ESP_OK(spicommon_bus_initialize_io(HSPI_HOST, &cfg, 0, flags_expected|SPICOMMON_BUSFLAG_SLAVE, &flags_o));
TEST_ASSERT_EQUAL_HEX32( flags_expected, flags_o );
@ -386,14 +415,14 @@ TEST_CASE("spi bus setting with different pin configs", "[spi]")
.max_transfer_sz = 8, .flags = flags_expected};
TEST_ASSERT_EQUAL(ESP_ERR_INVALID_ARG, spicommon_bus_initialize_io(HSPI_HOST, &cfg, 0, flags_expected|SPICOMMON_BUSFLAG_MASTER, &flags_o));
TEST_ASSERT_EQUAL(ESP_ERR_INVALID_ARG, spicommon_bus_initialize_io(HSPI_HOST, &cfg, 0, flags_expected|SPICOMMON_BUSFLAG_SLAVE, &flags_o));
ESP_LOGI(TAG, "check mosi flag...");
flags_expected = SPICOMMON_BUSFLAG_MOSI;
cfg = (spi_bus_config_t){.mosi_io_num = -1, .miso_io_num = NATIVE_MISO, .sclk_io_num = NATIVE_SCLK, .quadhd_io_num = NATIVE_HD, .quadwp_io_num = NATIVE_WP,
.max_transfer_sz = 8, .flags = flags_expected};
TEST_ASSERT_EQUAL(ESP_ERR_INVALID_ARG, spicommon_bus_initialize_io(HSPI_HOST, &cfg, 0, flags_expected|SPICOMMON_BUSFLAG_MASTER, &flags_o));
TEST_ASSERT_EQUAL(ESP_ERR_INVALID_ARG, spicommon_bus_initialize_io(HSPI_HOST, &cfg, 0, flags_expected|SPICOMMON_BUSFLAG_SLAVE, &flags_o));
ESP_LOGI(TAG, "check miso flag...");
flags_expected = SPICOMMON_BUSFLAG_MISO;
cfg = (spi_bus_config_t){.mosi_io_num = NATIVE_MOSI, .miso_io_num = -1, .sclk_io_num = NATIVE_SCLK, .quadhd_io_num = NATIVE_HD, .quadwp_io_num = NATIVE_WP,
@ -474,14 +503,32 @@ TEST_CASE("SPI Master no response when switch from host1 (HSPI) to host2 (VSPI)"
}
IRAM_ATTR static uint32_t data_iram[320];
DRAM_ATTR static uint32_t data_dram[320];
DRAM_ATTR static uint32_t data_dram[320]={0};
//force to place in code area.
static const uint32_t data_drom[320] = {0};
#define PIN_NUM_MISO 25
#define PIN_NUM_MOSI 23
#define PIN_NUM_CLK 19
#define PIN_NUM_CS 22
#define HSPI_NATIVE_PIN_NUM_MISO 12
#define HSPI_NATIVE_PIN_NUM_MOSI 13
#define HSPI_NATIVE_PIN_NUM_CLK 14
#define HSPI_NATIVE_PIN_NUM_CS 15
#define VSPI_NATIVE_PIN_NUM_MISO 19
#define VSPI_NATIVE_PIN_NUM_MOSI 23
#define VSPI_NATIVE_PIN_NUM_CLK 18
#define VSPI_NATIVE_PIN_NUM_CS 5
#if 1 //HSPI
#define PIN_NUM_MISO HSPI_NATIVE_PIN_NUM_MISO
#define PIN_NUM_MOSI HSPI_NATIVE_PIN_NUM_MOSI
#define PIN_NUM_CLK HSPI_NATIVE_PIN_NUM_CLK
#define PIN_NUM_CS HSPI_NATIVE_PIN_NUM_CS
#elif 1 //VSPI
#define PIN_NUM_MISO VSPI_NATIVE_PIN_NUM_MISO
#define PIN_NUM_MOSI VSPI_NATIVE_PIN_NUM_MOSI
#define PIN_NUM_CLK VSPI_NATIVE_PIN_NUM_CLK
#define PIN_NUM_CS VSPI_NATIVE_PIN_NUM_CS
#endif
#define PIN_NUM_DC 21
#define PIN_NUM_RST 18
@ -541,7 +588,7 @@ TEST_CASE("SPI Master DMA test, TX and RX in different regions", "[spi]")
trans[4].rxlength = 8*4;
trans[4].tx_buffer = data_drom;
trans[4].flags = SPI_TRANS_USE_RXDATA;
trans[5].length = 8*4;
trans[5].flags = SPI_TRANS_USE_RXDATA | SPI_TRANS_USE_TXDATA;
@ -562,13 +609,6 @@ TEST_CASE("SPI Master DMA test, TX and RX in different regions", "[spi]")
TEST_ASSERT(spi_bus_free(HSPI_HOST) == ESP_OK);
}
static inline void int_connect( uint32_t gpio, uint32_t sigo, uint32_t sigi )
{
gpio_matrix_out( gpio, sigo, false, false );
gpio_matrix_in( gpio, sigi, false );
}
//this part tests 3 DMA issues in master mode, full-duplex in IDF2.1
// 1. RX buffer not aligned (start and end)
// 2. not setting rx_buffer
@ -581,7 +621,7 @@ TEST_CASE("SPI Master DMA test: length, start, not aligned", "[spi]")
esp_err_t ret;
spi_device_handle_t spi;
spi_bus_config_t buscfg={
.miso_io_num=PIN_NUM_MISO,
.miso_io_num=PIN_NUM_MOSI,
.mosi_io_num=PIN_NUM_MOSI,
.sclk_io_num=PIN_NUM_CLK,
.quadwp_io_num=-1,
@ -592,7 +632,7 @@ TEST_CASE("SPI Master DMA test: length, start, not aligned", "[spi]")
.mode=0, //SPI mode 0
.spics_io_num=PIN_NUM_CS, //CS pin
.queue_size=7, //We want to be able to queue 7 transactions at a time
.pre_cb=NULL,
.pre_cb=NULL,
};
//Initialize the SPI bus
ret=spi_bus_initialize(HSPI_HOST, &buscfg, 1);
@ -601,18 +641,18 @@ TEST_CASE("SPI Master DMA test: length, start, not aligned", "[spi]")
ret=spi_bus_add_device(HSPI_HOST, &devcfg, &spi);
TEST_ASSERT(ret==ESP_OK);
//do internal connection
int_connect( PIN_NUM_MOSI, HSPID_OUT_IDX, HSPIQ_IN_IDX );
//connect MOSI to two devices breaks the output, fix it.
gpio_output_sel(buscfg.mosi_io_num, FUNC_GPIO, HSPID_OUT_IDX);
memset(rx_buf, 0x66, 320);
for ( int i = 0; i < 8; i ++ ) {
memset( rx_buf, 0x66, sizeof(rx_buf));
spi_transaction_t t = {};
t.length = 8*(i+1);
t.rxlength = 0;
t.tx_buffer = tx_buf+2*i;
t.tx_buffer = tx_buf+2*i;
t.rx_buffer = rx_buf + i;
if ( i == 1 ) {
@ -621,7 +661,7 @@ TEST_CASE("SPI Master DMA test: length, start, not aligned", "[spi]")
} else if ( i == 2 ) {
//test rx length != tx_length
t.rxlength = t.length - 8;
}
}
spi_device_transmit( spi, &t );
for( int i = 0; i < 16; i ++ ) {
@ -633,11 +673,11 @@ TEST_CASE("SPI Master DMA test: length, start, not aligned", "[spi]")
// no rx, skip check
} else if ( i == 2 ) {
//test rx length = tx length-1
TEST_ASSERT( memcmp(t.tx_buffer, t.rx_buffer, t.length/8-1)==0 );
TEST_ASSERT_EQUAL_HEX8_ARRAY(t.tx_buffer, t.rx_buffer, t.length/8-1 );
} else {
//normal check
TEST_ASSERT( memcmp(t.tx_buffer, t.rx_buffer, t.length/8)==0 );
}
TEST_ASSERT_EQUAL_HEX8_ARRAY(t.tx_buffer, t.rx_buffer, t.length/8 );
}
}
TEST_ASSERT(spi_bus_remove_device(spi) == ESP_OK);
@ -649,53 +689,25 @@ static const char SLAVE_TAG[] = "test_slave";
DRAM_ATTR static uint8_t master_send[] = {0x93, 0x34, 0x56, 0x78, 0x9a, 0xbc, 0xde, 0xf0, 0xaa, 0xcc, 0xff, 0xee, 0x55, 0x77, 0x88, 0x43};
DRAM_ATTR static uint8_t slave_send[] = { 0xaa, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10, 0x13, 0x57, 0x9b, 0xdf, 0x24, 0x68, 0xac, 0xe0 };
static void master_init( spi_device_handle_t* spi, int mode, uint32_t speed)
static void master_deinit(spi_device_handle_t spi)
{
esp_err_t ret;
spi_bus_config_t buscfg={
.miso_io_num=PIN_NUM_MISO,
.mosi_io_num=PIN_NUM_MOSI,
.sclk_io_num=PIN_NUM_CLK,
.quadwp_io_num=-1,
.quadhd_io_num=-1
};
spi_device_interface_config_t devcfg={
.clock_speed_hz=speed, //currently only up to 4MHz for internel connect
.mode=mode, //SPI mode 0
.spics_io_num=PIN_NUM_CS, //CS pin
.queue_size=16, //We want to be able to queue 7 transactions at a time
.pre_cb=NULL,
.cs_ena_pretrans = 0,
};
//Initialize the SPI bus
ret=spi_bus_initialize(HSPI_HOST, &buscfg, 1);
TEST_ASSERT(ret==ESP_OK);
//Attach the LCD to the SPI bus
ret=spi_bus_add_device(HSPI_HOST, &devcfg, spi);
TEST_ASSERT(ret==ESP_OK);
TEST_ESP_OK( spi_bus_remove_device(spi) );
TEST_ESP_OK( spi_bus_free(HSPI_HOST) );
}
static void slave_init(int mode, int dma_chan)
#define SPI_SLAVE_TEST_DEFAULT_CONFIG() {\
.mode=0,\
.spics_io_num=PIN_NUM_CS,\
.queue_size=3,\
.flags=0,\
}
static void slave_pull_up(const spi_bus_config_t* cfg, int spics_io_num)
{
//Configuration for the SPI bus
spi_bus_config_t buscfg={
.mosi_io_num=PIN_NUM_MOSI,
.miso_io_num=PIN_NUM_MISO,
.sclk_io_num=PIN_NUM_CLK
};
//Configuration for the SPI slave interface
spi_slave_interface_config_t slvcfg={
.mode=mode,
.spics_io_num=PIN_NUM_CS,
.queue_size=3,
.flags=0,
};
//Enable pull-ups on SPI lines so we don't detect rogue pulses when no master is connected.
gpio_set_pull_mode(PIN_NUM_MOSI, GPIO_PULLUP_ONLY);
gpio_set_pull_mode(PIN_NUM_CLK, GPIO_PULLUP_ONLY);
gpio_set_pull_mode(PIN_NUM_CS, GPIO_PULLUP_ONLY);
//Initialize SPI slave interface
TEST_ESP_OK( spi_slave_initialize(VSPI_HOST, &buscfg, &slvcfg, dma_chan) );
gpio_set_pull_mode(cfg->mosi_io_num, GPIO_PULLUP_ENABLE);
gpio_set_pull_mode(cfg->sclk_io_num, GPIO_PULLUP_ENABLE);
gpio_set_pull_mode(spics_io_num, GPIO_PULLUP_ENABLE);
}
typedef struct {
@ -705,10 +717,12 @@ typedef struct {
typedef struct {
uint32_t len;
uint8_t* tx_start;
uint8_t data[1];
} slave_rxdata_t;
typedef struct {
spi_host_device_t spi;
RingbufHandle_t data_received;
QueueHandle_t data_to_send;
} spi_slave_task_context_t;
@ -723,6 +737,7 @@ esp_err_t init_slave_context(spi_slave_task_context_t *context)
if ( context->data_received == NULL ) {
return ESP_ERR_NO_MEM;
}
context->spi=VSPI_HOST;
return ESP_OK;
}
@ -736,12 +751,16 @@ void deinit_slave_context(spi_slave_task_context_t *context)
context->data_received = NULL;
}
/* The task requires a queue and a ringbuf, which should be initialized before task starts.
Send ``slave_txdata_t`` to the queue to make the task send data;
the task returns data got to the ringbuf, which should have sufficient size.
*/
static void task_slave(void* arg)
{
spi_slave_task_context_t* context = (spi_slave_task_context_t*) arg;
QueueHandle_t queue = context->data_to_send;
RingbufHandle_t ringbuf = context->data_received;
uint8_t recvbuf[320+4];
uint8_t recvbuf[320+8];
slave_txdata_t txdata;
ESP_LOGI( SLAVE_TAG, "slave up" );
@ -749,18 +768,19 @@ static void task_slave(void* arg)
while( 1 ) {
xQueueReceive( queue, &txdata, portMAX_DELAY );
ESP_LOGI( "test", "received: %p", txdata.start );
ESP_LOGI( "test", "to send: %p", txdata.start );
spi_slave_transaction_t t = {};
t.length = txdata.len;
t.tx_buffer = txdata.start;
t.rx_buffer = recvbuf+4;
t.rx_buffer = recvbuf+8;
//loop until trans_len != 0 to skip glitches
do {
TEST_ESP_OK( spi_slave_transmit( VSPI_HOST, &t, portMAX_DELAY ) );
TEST_ESP_OK( spi_slave_transmit( context->spi, &t, portMAX_DELAY ) );
} while ( t.trans_len == 0 );
*(uint32_t*)recvbuf = t.trans_len;
*(uint8_t**)(recvbuf+4) = txdata.start;
ESP_LOGI( SLAVE_TAG, "received: %d", t.trans_len );
xRingbufferSend( ringbuf, recvbuf, 4+(t.trans_len+7)/8, portMAX_DELAY );
xRingbufferSend( ringbuf, recvbuf, 8+(t.trans_len+7)/8, portMAX_DELAY );
}
}
@ -775,16 +795,33 @@ TEST_CASE("SPI master variable cmd & addr test","[spi]")
TEST_ASSERT( err == ESP_OK );
spi_device_handle_t spi;
//initial master, mode 0, 1MHz
master_init( &spi, 0, 1*1000*1000 );
//initial slave, mode 0, no dma
slave_init(0, 0);
//do internal connection
int_connect( PIN_NUM_MOSI, HSPID_OUT_IDX, VSPIQ_IN_IDX );
int_connect( PIN_NUM_MISO, VSPIQ_OUT_IDX, HSPID_IN_IDX );
int_connect( PIN_NUM_CS, HSPICS0_OUT_IDX, VSPICS0_IN_IDX );
int_connect( PIN_NUM_CLK, HSPICLK_OUT_IDX, VSPICLK_IN_IDX );
//initial master, mode 0, 1MHz
spi_bus_config_t buscfg=SPI_BUS_TEST_DEFAULT_CONFIG();
TEST_ESP_OK(spi_bus_initialize(HSPI_HOST, &buscfg, 1));
spi_device_interface_config_t devcfg=SPI_DEVICE_TEST_DEFAULT_CONFIG();
devcfg.clock_speed_hz = 1*1000*1000; //currently only up to 4MHz for internel connect
devcfg.mode = 0;
devcfg.cs_ena_posttrans = 2;
TEST_ESP_OK(spi_bus_add_device(HSPI_HOST, &devcfg, &spi));
//initial slave, mode 0, no dma
int dma_chan = 0;
int slave_mode = 0;
spi_bus_config_t slv_buscfg=SPI_BUS_TEST_DEFAULT_CONFIG();
spi_slave_interface_config_t slvcfg=SPI_SLAVE_TEST_DEFAULT_CONFIG();
slvcfg.mode = slave_mode;
//Enable pull-ups on SPI lines so we don't detect rogue pulses when no master is connected.
slave_pull_up(&buscfg, slvcfg.spics_io_num);
//Initialize SPI slave interface
TEST_ESP_OK( spi_slave_initialize(VSPI_HOST, &slv_buscfg, &slvcfg, dma_chan) );
//connecting pins to two peripherals breaks the output, fix it.
gpio_output_sel(PIN_NUM_MOSI, FUNC_GPIO, HSPID_OUT_IDX);
gpio_output_sel(PIN_NUM_MISO, FUNC_GPIO, VSPIQ_OUT_IDX);
gpio_output_sel(PIN_NUM_CS, FUNC_GPIO, HSPICS0_OUT_IDX);
gpio_output_sel(PIN_NUM_CLK, FUNC_GPIO, HSPICLK_OUT_IDX);
TaskHandle_t handle_slave;
xTaskCreate( task_slave, "spi_slave", 4096, &slave_context, 0, &handle_slave);
@ -871,7 +908,7 @@ TEST_CASE("SPI master variable cmd & addr test","[spi]")
handle_slave = 0;
deinit_slave_context(&slave_context);
TEST_ASSERT(spi_slave_free(VSPI_HOST) == ESP_OK);
TEST_ASSERT(spi_bus_remove_device(spi) == ESP_OK);
@ -880,6 +917,9 @@ TEST_CASE("SPI master variable cmd & addr test","[spi]")
ESP_LOGI(MASTER_TAG, "test passed.");
}
/********************************************************************************
* Test SPI transaction interval
********************************************************************************/
#define RECORD_TIME_PREPARE() uint32_t __t1, __t2
#define RECORD_TIME_START() do {__t1 = xthal_get_ccount();}while(0)
#define RECORD_TIME_END(p_time) do{__t2 = xthal_get_ccount(); *p_time = (__t2-__t1)/240;}while(0)
@ -887,21 +927,10 @@ TEST_CASE("SPI master variable cmd & addr test","[spi]")
static void speed_setup(spi_device_handle_t* spi, bool use_dma)
{
esp_err_t ret;
spi_bus_config_t buscfg={
.miso_io_num=PIN_NUM_MISO,
.mosi_io_num=PIN_NUM_MOSI,
.sclk_io_num=PIN_NUM_CLK,
.quadwp_io_num=-1,
.quadhd_io_num=-1
};
spi_device_interface_config_t devcfg={
.clock_speed_hz=10*1000*1000, //currently only up to 4MHz for internel connect
.mode=0, //SPI mode 0
.spics_io_num=PIN_NUM_CS, //CS pin
.queue_size=8, //We want to be able to queue 7 transactions at a time
.pre_cb=NULL,
.cs_ena_pretrans = 0,
};
spi_bus_config_t buscfg=SPI_BUS_TEST_DEFAULT_CONFIG();
spi_device_interface_config_t devcfg=SPI_DEVICE_TEST_DEFAULT_CONFIG();
devcfg.queue_size=8; //We want to be able to queue 7 transactions at a time
//Initialize the SPI bus and the device to test
ret=spi_bus_initialize(HSPI_HOST, &buscfg, (use_dma?1:0));
TEST_ASSERT(ret==ESP_OK);
@ -930,12 +959,12 @@ static void sorted_array_insert(uint32_t* array, int* size, uint32_t item)
TEST_CASE("spi_speed","[spi]")
{
RECORD_TIME_PREPARE();
RECORD_TIME_PREPARE();
uint32_t t_flight;
//to get rid of the influence of randomly interrupts, we measured the performance by median value
uint32_t t_flight_sorted[TEST_TIMES];
int t_flight_num = 0;
spi_device_handle_t spi;
const bool use_dma = true;
WORD_ALIGNED_ATTR spi_transaction_t trans = {
@ -948,37 +977,38 @@ TEST_CASE("spi_speed","[spi]")
//first time introduces a device switch, which costs more time. we skip this
spi_device_transmit(spi, &trans);
//record flight time by isr, with DMA
t_flight_num = 0;
for (int i = 0; i < TEST_TIMES; i++) {
RECORD_TIME_START();
spi_device_transmit(spi, &trans);
RECORD_TIME_END(&t_flight);
RECORD_TIME_END(&t_flight);
sorted_array_insert(t_flight_sorted, &t_flight_num, t_flight);
}
TEST_PERFORMANCE_LESS_THAN(SPI_PER_TRANS_NO_POLLING, "%d us", t_flight_sorted[(TEST_TIMES+1)/2]);
for (int i = 0; i < TEST_TIMES; i++) {
ESP_LOGI(TAG, "%d", t_flight_sorted[i]);
}
speed_deinit(spi);
speed_setup(&spi, !use_dma);
//first time introduces a device switch, which costs more time. we skip this
spi_device_transmit(spi, &trans);
//record flight time by isr, without DMA
t_flight_num = 0;
for (int i = 0; i < TEST_TIMES; i++) {
RECORD_TIME_START();
spi_device_transmit(spi, &trans);
RECORD_TIME_END(&t_flight);
RECORD_TIME_END(&t_flight);
sorted_array_insert(t_flight_sorted, &t_flight_num, t_flight);
}
TEST_PERFORMANCE_LESS_THAN( SPI_PER_TRANS_NO_POLLING_NO_DMA, "%d us", t_flight_sorted[(TEST_TIMES+1)/2]);
for (int i = 0; i < TEST_TIMES; i++) {
ESP_LOGI(TAG, "%d", t_flight_sorted[i]);
}
speed_deinit(spi);
}
speed_deinit(spi);
}