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esp-idf/components/driver/test/test_spi_param.c

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#include "esp_log.h"
#include "esp_attr.h"
#include "soc/spi_periph.h"
#include "sdkconfig.h"
#include "test/test_common_spi.h"
#include "driver/spi_master.h"
#include "driver/spi_slave.h"
#if !DISABLED_FOR_TARGETS(ESP32C3)
//There is only one GPSPI controller on ESP32C3, so single-board test is disabled.
#ifndef MIN
#define MIN(a, b)((a) > (b)? (b): (a))
#endif
/********************************************************************************
* Test By Internal Connections
********************************************************************************/
static void local_test_init(void** context);
static void local_test_deinit(void* context);
static void local_test_loop(const void *test_param, void* context);
static const ptest_func_t local_test_func = {
.pre_test = local_test_init,
.post_test = local_test_deinit,
.loop = local_test_loop,
.def_param = spitest_def_param,
};
#define TEST_SPI_LOCAL(name, param_set) \
PARAM_GROUP_DECLARE(name, param_set) \
TEST_SINGLE_BOARD(SPI_##name, param_set, "[spi][timeout=120]", &local_test_func)
static void local_test_init(void** arg)
{
esp_log_level_set("gpio", ESP_LOG_WARN);
TEST_ASSERT(*arg==NULL);
*arg = malloc(sizeof(spitest_context_t));
spitest_context_t* context = (spitest_context_t*)*arg;
TEST_ASSERT(context!=NULL);
context->slave_context = (spi_slave_task_context_t){};
esp_err_t err = init_slave_context( &context->slave_context);
TEST_ASSERT(err == ESP_OK);
xTaskCreate(spitest_slave_task, "spi_slave", 4096, &context->slave_context, 0, &context->handle_slave);
}
static void local_test_deinit(void* arg)
{
spitest_context_t* context = arg;
vTaskDelete(context->handle_slave);
context->handle_slave = 0;
deinit_slave_context(&context->slave_context);
}
static void local_test_start(spi_device_handle_t *spi, int freq, const spitest_param_set_t* pset, spitest_context_t* context)
{
//master config
spi_bus_config_t buscfg = SPI_BUS_TEST_DEFAULT_CONFIG();
spi_device_interface_config_t devcfg = SPI_DEVICE_TEST_DEFAULT_CONFIG();
spi_slave_interface_config_t slvcfg = SPI_SLAVE_TEST_DEFAULT_CONFIG();
//pin config & initialize
//we can't have two sets of iomux pins on the same pins
assert(!pset->master_iomux || !pset->slave_iomux);
if (pset->slave_iomux) {
//only in this case, use VSPI iomux pins
buscfg.miso_io_num = SLAVE_IOMUX_PIN_MISO;
buscfg.mosi_io_num = SLAVE_IOMUX_PIN_MOSI;
buscfg.sclk_io_num = SLAVE_IOMUX_PIN_SCLK;
devcfg.spics_io_num = SLAVE_IOMUX_PIN_CS;
slvcfg.spics_io_num = SLAVE_IOMUX_PIN_CS;
} else {
buscfg.miso_io_num = MASTER_IOMUX_PIN_MISO;
buscfg.mosi_io_num = MASTER_IOMUX_PIN_MOSI;
buscfg.sclk_io_num = MASTER_IOMUX_PIN_SCLK;
devcfg.spics_io_num = MASTER_IOMUX_PIN_CS;
slvcfg.spics_io_num = MASTER_IOMUX_PIN_CS;
}
//this does nothing, but avoid the driver from using iomux pins if required
buscfg.quadhd_io_num = (!pset->master_iomux && !pset->slave_iomux ? UNCONNECTED_PIN : -1);
devcfg.mode = pset->mode;
const int cs_pretrans_max = 15;
if (pset->dup == HALF_DUPLEX_MISO) {
devcfg.cs_ena_pretrans = cs_pretrans_max;
devcfg.flags |= SPI_DEVICE_HALFDUPLEX;
} else if (pset->dup == HALF_DUPLEX_MOSI) {
devcfg.cs_ena_pretrans = cs_pretrans_max;
devcfg.flags |= SPI_DEVICE_NO_DUMMY;
} else {
devcfg.cs_ena_pretrans = cs_pretrans_max;
}
const int cs_posttrans_max = 15;
devcfg.cs_ena_posttrans = cs_posttrans_max;
devcfg.input_delay_ns = pset->slave_tv_ns;
devcfg.clock_speed_hz = freq;
if (pset->master_limit != 0 && freq > pset->master_limit) devcfg.flags |= SPI_DEVICE_NO_DUMMY;
//slave config
slvcfg.mode = pset->mode;
slave_pull_up(&buscfg, slvcfg.spics_io_num);
#if !SOC_GDMA_SUPPORTED
int dma_chan = pset->master_dma_chan;
#else
int dma_chan = (pset->master_dma_chan == 0) ? 0 : -1;
#endif
TEST_ESP_OK(spi_bus_initialize(TEST_SPI_HOST, &buscfg, dma_chan));
TEST_ESP_OK(spi_bus_add_device(TEST_SPI_HOST, &devcfg, spi));
//slave automatically use iomux pins if pins are on VSPI_* pins
buscfg.quadhd_io_num = -1;
#if !SOC_GDMA_SUPPORTED
int slave_dma_chan = pset->slave_dma_chan;
#else
int slave_dma_chan = (pset->slave_dma_chan == 0) ? 0 : -1;
#endif
TEST_ESP_OK(spi_slave_initialize(TEST_SLAVE_HOST, &buscfg, &slvcfg, slave_dma_chan));
//initialize master and slave on the same pins break some of the output configs, fix them
if (pset->master_iomux) {
spitest_gpio_output_sel(buscfg.mosi_io_num, FUNC_SPI, spi_periph_signal[TEST_SPI_HOST].spid_out);
spitest_gpio_output_sel(buscfg.miso_io_num, FUNC_GPIO, spi_periph_signal[TEST_SLAVE_HOST].spiq_out);
spitest_gpio_output_sel(devcfg.spics_io_num, FUNC_SPI, spi_periph_signal[TEST_SPI_HOST].spics_out[0]);
spitest_gpio_output_sel(buscfg.sclk_io_num, FUNC_SPI, spi_periph_signal[TEST_SPI_HOST].spiclk_out);
} else if (pset->slave_iomux) {
spitest_gpio_output_sel(buscfg.mosi_io_num, FUNC_GPIO, spi_periph_signal[TEST_SPI_HOST].spid_out);
spitest_gpio_output_sel(buscfg.miso_io_num, FUNC_SPI, spi_periph_signal[TEST_SLAVE_HOST].spiq_out);
spitest_gpio_output_sel(devcfg.spics_io_num, FUNC_GPIO, spi_periph_signal[TEST_SPI_HOST].spics_out[0]);
spitest_gpio_output_sel(buscfg.sclk_io_num, FUNC_GPIO, spi_periph_signal[TEST_SPI_HOST].spiclk_out);
} else {
spitest_gpio_output_sel(buscfg.mosi_io_num, FUNC_GPIO, spi_periph_signal[TEST_SPI_HOST].spid_out);
spitest_gpio_output_sel(buscfg.miso_io_num, FUNC_GPIO, spi_periph_signal[TEST_SLAVE_HOST].spiq_out);
spitest_gpio_output_sel(devcfg.spics_io_num, FUNC_GPIO, spi_periph_signal[TEST_SPI_HOST].spics_out[0]);
spitest_gpio_output_sel(buscfg.sclk_io_num, FUNC_GPIO, spi_periph_signal[TEST_SPI_HOST].spiclk_out);
}
if (context) {
//clear master receive buffer
memset(context->master_rxbuf, 0x66, sizeof(context->master_rxbuf));
}
}
static void local_test_end(spi_device_handle_t spi)
{
master_free_device_bus(spi);
TEST_ASSERT(spi_slave_free(TEST_SLAVE_HOST) == ESP_OK);
}
static void local_test_loop(const void* arg1, void* arg2)
{
const spitest_param_set_t *pset = arg1;
spitest_context_t *context = arg2;
spi_device_handle_t spi;
spitest_init_transactions(pset, context);
const int *timing_speed_array = pset->freq_list;
ESP_LOGI(MASTER_TAG, "****************** %s ***************", pset->pset_name);
for (int i = 0; ; i++) {
const int freq = timing_speed_array[i];
if (freq==0) break;
if (pset->freq_limit && freq > pset->freq_limit) break;
ESP_LOGI(MASTER_TAG, "==> %dkHz", freq / 1000);
bool check_master_data = (pset->dup!=HALF_DUPLEX_MOSI &&
(pset->master_limit==0 || freq <= pset->master_limit));
if (!check_master_data) ESP_LOGI(MASTER_TAG, "skip master data check");
bool check_slave_data = (pset->dup!=HALF_DUPLEX_MISO);
if (!check_slave_data) ESP_LOGI(SLAVE_TAG, "skip slave data check");
local_test_start(&spi, freq, pset, context);
for (int k = 0; k < pset->test_size; k++) {
WORD_ALIGNED_ATTR uint8_t recvbuf[320+8];
slave_txdata_t *txdata = &context->slave_trans[k];
spi_slave_transaction_t slave_trans = {
.tx_buffer = txdata->start,
.rx_buffer = recvbuf,
.length = txdata->len,
};
esp_err_t err = spi_slave_queue_trans(TEST_SLAVE_HOST, &slave_trans, portMAX_DELAY);
TEST_ESP_OK(err);
//wait for both master and slave end
spi_transaction_t *t = &context->master_trans[k];
int len = get_trans_len(pset->dup, t);
ESP_LOGI(MASTER_TAG, " ==> #%d: len: %d", k, len);
//send master tx data
err = spi_device_transmit(spi, t);
TEST_ESP_OK(err);
spi_slave_transaction_t *ret_trans;
err = spi_slave_get_trans_result(TEST_SLAVE_HOST, &ret_trans, 5);
TEST_ESP_OK(err);
TEST_ASSERT_EQUAL(&slave_trans, ret_trans);
uint32_t rcv_len = slave_trans.trans_len;
bool failed = false;
//check master data
if (check_master_data && memcmp(slave_trans.tx_buffer, t->rx_buffer, (len + 7) / 8) != 0 ) {
failed = true;
}
//check slave data and length
//currently the rcv_len can be in range of [t->length-1, t->length+3]
if ( rcv_len < len - 1 || rcv_len > len + 4) {
failed = true;
}
if (check_slave_data && memcmp(t->tx_buffer, slave_trans.rx_buffer, (len + 7) / 8) != 0 ) {
failed = true;
}
if (failed) {
ESP_LOGI(SLAVE_TAG, "slave_recv_len: %d", rcv_len);
spitest_master_print_data(t, len);
ESP_LOG_BUFFER_HEX("slave tx", slave_trans.tx_buffer, len);
ESP_LOG_BUFFER_HEX("slave rx", slave_trans.rx_buffer, len);
//already failed, try to use the TEST_ASSERT to output the reason...
TEST_ASSERT_EQUAL_HEX8_ARRAY(slave_trans.tx_buffer, t->rx_buffer, (len + 7) / 8);
TEST_ASSERT_EQUAL_HEX8_ARRAY(t->tx_buffer, slave_trans.rx_buffer, (len + 7) / 8);
TEST_ASSERT(rcv_len >= len - 1 && rcv_len <= len + 4);
}
}
local_test_end(spi);
}
}
/************ Timing Test ***********************************************/
//TODO: esp32s2 has better timing performance
static spitest_param_set_t timing_pgroup[] = {
//signals are not fed to peripherals through iomux if the functions are not selected to iomux
#if !DISABLED_FOR_TARGETS(ESP32S2, ESP32S3)
{ .pset_name = "FULL_DUP, MASTER IOMUX",
.freq_limit = ESP_SPI_SLAVE_MAX_FREQ_SYNC,
.master_limit = SPI_MASTER_FREQ_13M,
.dup = FULL_DUPLEX,
.master_iomux = true,
.slave_iomux = false,
.slave_tv_ns = TV_INT_CONNECT_GPIO,
},
{ .pset_name = "FULL_DUP, SLAVE IOMUX",
.freq_limit = ESP_SPI_SLAVE_MAX_FREQ_SYNC,
.master_limit = SPI_MASTER_FREQ_13M,
.dup = FULL_DUPLEX,
.master_iomux = false,
.slave_iomux = true,
.slave_tv_ns = TV_INT_CONNECT,
},
#endif
{ .pset_name = "FULL_DUP, BOTH GPIO",
.freq_limit = ESP_SPI_SLAVE_MAX_FREQ_SYNC,
.master_limit = SPI_MASTER_FREQ_10M,
.dup = FULL_DUPLEX,
.master_iomux = false,
.slave_iomux = false,
.slave_tv_ns = TV_INT_CONNECT_GPIO,
},
//signals are not fed to peripherals through iomux if the functions are not selected to iomux
#if !DISABLED_FOR_TARGETS(ESP32S2, ESP32S3)
{ .pset_name = "MISO_DUP, MASTER IOMUX",
.freq_limit = ESP_SPI_SLAVE_MAX_FREQ_SYNC,
.master_limit = ESP_SPI_SLAVE_MAX_FREQ_SYNC,
.dup = HALF_DUPLEX_MISO,
.master_iomux = true,
.slave_iomux = false,
.slave_tv_ns = TV_INT_CONNECT_GPIO,
},
{ .pset_name = "MISO_DUP, SLAVE IOMUX",
.freq_limit = ESP_SPI_SLAVE_MAX_FREQ_SYNC,
//.freq_limit = ESP_SPI_SLAVE_MAX_FREQ_SYNC,
.dup = HALF_DUPLEX_MISO,
.master_iomux = false,
.slave_iomux = true,
.slave_tv_ns = TV_INT_CONNECT,
},
#endif
{ .pset_name = "MISO_DUP, BOTH GPIO",
.freq_limit = ESP_SPI_SLAVE_MAX_FREQ_SYNC,
//.freq_limit = ESP_SPI_SLAVE_MAX_FREQ_SYNC,
.dup = HALF_DUPLEX_MISO,
.master_iomux = false,
.slave_iomux = false,
.slave_tv_ns = TV_INT_CONNECT_GPIO,
},
//signals are not fed to peripherals through iomux if the functions are not selected to iomux
#if !DISABLED_FOR_TARGETS(ESP32S2, ESP32S3)
{ .pset_name = "MOSI_DUP, MASTER IOMUX",
.freq_limit = ESP_SPI_SLAVE_MAX_FREQ_SYNC,
//.freq_limit = ESP_SPI_SLAVE_MAX_READ_FREQ, //ESP_SPI_SLAVE_MAX_FREQ_SYNC,
.dup = HALF_DUPLEX_MOSI,
.master_iomux = true,
.slave_iomux = false,
.slave_tv_ns = TV_INT_CONNECT_GPIO,
},
{ .pset_name = "MOSI_DUP, SLAVE IOMUX",
.freq_limit = ESP_SPI_SLAVE_MAX_FREQ_SYNC,
//.freq_limit = ESP_SPI_SLAVE_MAX_READ_FREQ, //ESP_SPI_SLAVE_MAX_FREQ_SYNC,
.dup = HALF_DUPLEX_MOSI,
.master_iomux = false,
.slave_iomux = true,
.slave_tv_ns = TV_INT_CONNECT,
},
#endif
{ .pset_name = "MOSI_DUP, BOTH GPIO",
.freq_limit = ESP_SPI_SLAVE_MAX_FREQ_SYNC,
//.freq_limit = ESP_SPI_SLAVE_MAX_READ_FREQ, //ESP_SPI_SLAVE_MAX_FREQ_SYNC,
.dup = HALF_DUPLEX_MOSI,
.master_iomux = false,
.slave_iomux = false,
.slave_tv_ns = TV_INT_CONNECT_GPIO,
},
};
TEST_SPI_LOCAL(TIMING, timing_pgroup)
/************ Mode Test ***********************************************/
#define FREQ_LIMIT_MODE SPI_MASTER_FREQ_16M
static int test_freq_mode_local[]={
1*1000*1000,
SPI_MASTER_FREQ_9M, //maximum freq MISO stable before next latch edge
SPI_MASTER_FREQ_13M,
SPI_MASTER_FREQ_16M,
SPI_MASTER_FREQ_20M,
SPI_MASTER_FREQ_26M,
SPI_MASTER_FREQ_40M,
0,
};
//signals are not fed to peripherals through iomux if the functions are not selected to iomux
#ifdef CONFIG_IDF_TARGET_ESP32
#define LOCAL_MODE_TEST_SLAVE_IOMUX true
/*
* When DMA is enabled in mode 0 and 2, an special workaround is used. The MISO (slave's output) is
* half an SPI clock ahead, but then delay 3 apb clocks.
* Compared to the normal timing, the MISO is not slower than when the frequency is below 13.3MHz,
* under which there's no need for the master to compensate the MISO signal. However compensation
* is required when the frequency is beyond 16MHz, at this time, an extra positive delay is added
* to the normal delay (3 apb clocks).
*
* It's is hard to tell the master driver that kind of delay logic. This magic delay value happens
* to compensate master timing beyond 16MHz.
*
* If the master or slave's timing is changed again, and the test no longer passes, above 16MHz,
* it's OK to use `master_limit` to disable master data check or skip the test above some
* frequencies above 10MHz (the design target value).
*/
#define SLAVE_EXTRA_DELAY_DMA 12.5
#else
#define LOCAL_MODE_TEST_SLAVE_IOMUX false
#define SLAVE_EXTRA_DELAY_DMA 0
#endif
static spitest_param_set_t mode_pgroup[] = {
{ .pset_name = "Mode 0",
.freq_list = test_freq_mode_local,
.master_limit = SPI_MASTER_FREQ_13M,
.dup = FULL_DUPLEX,
.mode = 0,
.master_iomux = false,
.slave_iomux = LOCAL_MODE_TEST_SLAVE_IOMUX,
.slave_tv_ns = TV_INT_CONNECT,
},
{ .pset_name = "Mode 1",
.freq_list = test_freq_mode_local,
.freq_limit = SPI_MASTER_FREQ_26M,
.master_limit = SPI_MASTER_FREQ_13M,
.dup = FULL_DUPLEX,
.mode = 1,
.master_iomux = false,
.slave_iomux = LOCAL_MODE_TEST_SLAVE_IOMUX,
.slave_tv_ns = TV_INT_CONNECT,
},
{ .pset_name = "Mode 2",
.freq_list = test_freq_mode_local,
.master_limit = SPI_MASTER_FREQ_13M,
.dup = FULL_DUPLEX,
.mode = 2,
.master_iomux = false,
.slave_iomux = LOCAL_MODE_TEST_SLAVE_IOMUX,
.slave_tv_ns = TV_INT_CONNECT,
},
{ .pset_name = "Mode 3",
.freq_list = test_freq_mode_local,
.freq_limit = SPI_MASTER_FREQ_26M,
.master_limit = SPI_MASTER_FREQ_13M,
.dup = FULL_DUPLEX,
.mode = 3,
.master_iomux = false,
.slave_iomux = LOCAL_MODE_TEST_SLAVE_IOMUX,
.slave_tv_ns = TV_INT_CONNECT,
},
{ .pset_name = "Mode 0, DMA",
.freq_list = test_freq_mode_local,
.master_limit = SPI_MASTER_FREQ_13M,
.dup = FULL_DUPLEX,
.mode = 0,
.slave_dma_chan = 2,
.master_iomux = false,
.slave_iomux = LOCAL_MODE_TEST_SLAVE_IOMUX,
.slave_tv_ns = TV_INT_CONNECT,
.length_aligned = true,
},
{ .pset_name = "Mode 1, DMA",
.freq_list = test_freq_mode_local,
.freq_limit = SPI_MASTER_FREQ_26M,
.master_limit = SPI_MASTER_FREQ_13M,
.dup = FULL_DUPLEX,
.mode = 1,
.slave_dma_chan = 2,
.master_iomux = false,
.slave_iomux = LOCAL_MODE_TEST_SLAVE_IOMUX,
.slave_tv_ns = TV_INT_CONNECT,
.length_aligned = true,
},
{ .pset_name = "Mode 2, DMA",
.freq_list = test_freq_mode_local,
.master_limit = SPI_MASTER_FREQ_13M,
.dup = FULL_DUPLEX,
.mode = 2,
.slave_dma_chan = 2,
.master_iomux = false,
.slave_iomux = LOCAL_MODE_TEST_SLAVE_IOMUX,
.slave_tv_ns = TV_INT_CONNECT,
.length_aligned = true,
},
{ .pset_name = "Mode 3, DMA",
.freq_list = test_freq_mode_local,
.freq_limit = SPI_MASTER_FREQ_26M,
.master_limit = SPI_MASTER_FREQ_13M,
.dup = FULL_DUPLEX,
.mode = 3,
.slave_dma_chan = 2,
.master_iomux = false,
.slave_iomux = LOCAL_MODE_TEST_SLAVE_IOMUX,
.slave_tv_ns = TV_INT_CONNECT,
.length_aligned = true,
},
/////////////////////////// MISO ////////////////////////////////////
{ .pset_name = "MISO, Mode 0",
.freq_list = test_freq_mode_local,
.dup = HALF_DUPLEX_MISO,
.mode = 0,
.master_iomux = false,
.slave_iomux = LOCAL_MODE_TEST_SLAVE_IOMUX,
.slave_tv_ns = TV_INT_CONNECT,
},
{ .pset_name = "MISO, Mode 1",
.freq_list = test_freq_mode_local,
.dup = HALF_DUPLEX_MISO,
.mode = 1,
.master_iomux = false,
.slave_iomux = LOCAL_MODE_TEST_SLAVE_IOMUX,
.slave_tv_ns = TV_INT_CONNECT,
},
{ .pset_name = "MISO, Mode 2",
.freq_list = test_freq_mode_local,
.dup = HALF_DUPLEX_MISO,
.mode = 2,
.master_iomux = false,
.slave_iomux = LOCAL_MODE_TEST_SLAVE_IOMUX,
.slave_tv_ns = TV_INT_CONNECT,
},
{ .pset_name = "MISO, Mode 3",
.freq_list = test_freq_mode_local,
.dup = HALF_DUPLEX_MISO,
.mode = 3,
.master_iomux = false,
.slave_iomux = LOCAL_MODE_TEST_SLAVE_IOMUX,
.slave_tv_ns = TV_INT_CONNECT,
},
{ .pset_name = "MISO, Mode 0, DMA",
.freq_list = test_freq_mode_local,
.dup = HALF_DUPLEX_MISO,
.mode = 0,
.slave_dma_chan = 2,
.master_iomux = false,
.slave_iomux = LOCAL_MODE_TEST_SLAVE_IOMUX,
.slave_tv_ns = TV_INT_CONNECT+SLAVE_EXTRA_DELAY_DMA,
.length_aligned = true,
},
{ .pset_name = "MISO, Mode 1, DMA",
.freq_list = test_freq_mode_local,
.dup = HALF_DUPLEX_MISO,
.mode = 1,
.slave_dma_chan = 2,
.master_iomux = false,
.slave_iomux = LOCAL_MODE_TEST_SLAVE_IOMUX,
.slave_tv_ns = TV_INT_CONNECT,
.length_aligned = true,
},
{ .pset_name = "MISO, Mode 2, DMA",
.freq_list = test_freq_mode_local,
.dup = HALF_DUPLEX_MISO,
.mode = 2,
.slave_dma_chan = 2,
.master_iomux = false,
.slave_iomux = LOCAL_MODE_TEST_SLAVE_IOMUX,
.slave_tv_ns = TV_INT_CONNECT+SLAVE_EXTRA_DELAY_DMA,
.length_aligned = true,
},
{ .pset_name = "MISO, Mode 3, DMA",
.freq_list = test_freq_mode_local,
.dup = HALF_DUPLEX_MISO,
.mode = 3,
.slave_dma_chan = 2,
.master_iomux = false,
.slave_iomux = LOCAL_MODE_TEST_SLAVE_IOMUX,
.slave_tv_ns = TV_INT_CONNECT,
.length_aligned = true,
},
};
TEST_SPI_LOCAL(MODE, mode_pgroup)
/**********************SPI master slave transaction length test*************/
/* Test SPI slave can receive different length of data in all 4 modes (permutations of
* CPOL/CPHA and when DMA is used or not).
* Length from 1 to 16 bytes are tested.
*/
#define MASTER_DATA_RAND_SEED 123
#define SLAVE_DATA_RAND_SEED 456
TEST_CASE("Slave receive correct data", "[spi]")
{
// Initialize device handle and spi bus
uint32_t master_seed_send = MASTER_DATA_RAND_SEED;
uint32_t slave_seed_send = SLAVE_DATA_RAND_SEED;
uint32_t master_seed_cmp = slave_seed_send;
uint32_t slave_seed_cmp = master_seed_send;
const int buf_size = 20;
WORD_ALIGNED_ATTR uint8_t slave_sendbuf[buf_size];
WORD_ALIGNED_ATTR uint8_t slave_recvbuf[buf_size];
WORD_ALIGNED_ATTR uint8_t master_sendbuf[buf_size];
WORD_ALIGNED_ATTR uint8_t master_recvbuf[buf_size];
uint8_t master_cmpbuf[buf_size];
uint8_t slave_cmpbuf[buf_size];
for (int spi_mode = 0; spi_mode < 4; spi_mode++) {
for (int dma_chan = 0; dma_chan < 2; dma_chan++) {
spi_device_handle_t spi;
spitest_param_set_t test_param = {
.dup = FULL_DUPLEX,
.mode = spi_mode,
.master_iomux = false,
.slave_iomux = false,
.master_dma_chan = 0,
.slave_dma_chan = (dma_chan? TEST_DMA_CHAN_SLAVE: 0),
};
ESP_LOGI(SLAVE_TAG, "Test slave recv @ mode %d, dma enabled=%d", spi_mode, dma_chan);
local_test_start(&spi, 1000*1000, &test_param, NULL);
for (int round = 0; round < 20; round++) {
// printf("trans %d\n", round);
int master_trans_len = round + 1;
const int slave_trans_len = 16;
memset(master_sendbuf, 0xcc, buf_size);
memset(slave_sendbuf, 0x55, buf_size);
memset(master_recvbuf, 0xaa, buf_size);
memset(slave_recvbuf, 0xbb, buf_size);
for(int i = 0; i < master_trans_len; i++){
master_sendbuf[i] = rand_r(&master_seed_send);
slave_sendbuf[i] = rand_r(&slave_seed_send);
}
spi_slave_transaction_t slave_trans = {
.length = slave_trans_len * 8,
.tx_buffer = slave_sendbuf,
.rx_buffer = slave_recvbuf
};
esp_err_t ret= spi_slave_queue_trans(TEST_SLAVE_HOST, &slave_trans, portMAX_DELAY);
TEST_ESP_OK(ret);
spi_transaction_t master_trans = {
.length = 8 * master_trans_len,
.tx_buffer = master_sendbuf,
.rx_buffer = master_recvbuf
};
ret = spi_device_transmit(spi, &master_trans);
TEST_ESP_OK(ret);
spi_slave_transaction_t *out_trans;
ret = spi_slave_get_trans_result(TEST_SLAVE_HOST, &out_trans, portMAX_DELAY);
TEST_ESP_OK(ret);
TEST_ASSERT_EQUAL_HEX32(&slave_trans, out_trans);
for(int i = 0; i < master_trans_len; i++){
master_cmpbuf[i] = rand_r(&master_seed_cmp);
slave_cmpbuf[i] = rand_r(&slave_seed_cmp);
}
// esp_log_buffer_hex("master_send", master_sendbuf, buf_size);
// esp_log_buffer_hex("slave_recv", slave_recvbuf, buf_size);
// esp_log_buffer_hex("slave_send", slave_sendbuf, buf_size);
// esp_log_buffer_hex("master_recv", master_recvbuf, buf_size);
int master_expected_len = MIN(master_trans_len, slave_trans_len);
TEST_ASSERT_EQUAL_HEX8_ARRAY(master_cmpbuf, master_recvbuf, master_expected_len);
int slave_expected_len;
if (dma_chan) {
slave_expected_len = (master_expected_len & (~3));
} else {
slave_expected_len = master_expected_len;
}
if (slave_expected_len) {
TEST_ASSERT_EQUAL_HEX8_ARRAY(slave_cmpbuf, slave_recvbuf, slave_expected_len);
}
}
local_test_end(spi);
}
}
}
#if !TEMPORARY_DISABLED_FOR_TARGETS(ESP32S2, ESP32S3, ESP32C3)
//These tests are ESP32 only due to lack of runners
/********************************************************************************
* Test By Master & Slave (2 boards)
*
* Wiring:
* | Master | Slave |
* | ------ | ----- |
* | 12 | 19 |
* | 13 | 23 |
* | 14 | 18 |
* | 15 | 5 |
* | GND | GND |
*
********************************************************************************/
static void test_master_init(void** context);
static void test_master_deinit(void* context);
static void test_master_loop(const void *test_cfg, void* context);
static const ptest_func_t master_test_func = {
.pre_test = test_master_init,
.post_test = test_master_deinit,
.loop = test_master_loop,
.def_param = spitest_def_param,
};
static void test_slave_init(void** context);
static void test_slave_deinit(void* context);
static void test_slave_loop(const void *test_cfg, void* context);
static const ptest_func_t slave_test_func = {
.pre_test = test_slave_init,
.post_test = test_slave_deinit,
.loop = test_slave_loop,
.def_param = spitest_def_param,
};
#define TEST_SPI_MASTER_SLAVE(name, param_group, extra_tag) \
PARAM_GROUP_DECLARE(name, param_group) \
TEST_MASTER_SLAVE(name, param_group, "[spi_ms][test_env=Example_SPI_Multi_device][timeout=120]"#extra_tag, &master_test_func, &slave_test_func)
/************ Master Code ***********************************************/
static void test_master_init(void** arg)
{
TEST_ASSERT(*arg==NULL);
*arg = malloc(sizeof(spitest_context_t));
spitest_context_t* context = *arg;
TEST_ASSERT(context!=NULL);
context->slave_context = (spi_slave_task_context_t){};
esp_err_t err = init_slave_context(&context->slave_context);
TEST_ASSERT(err == ESP_OK);
}
static void test_master_deinit(void* arg)
{
spitest_context_t* context = (spitest_context_t*)arg;
deinit_slave_context(&context->slave_context);
}
static void test_master_start(spi_device_handle_t *spi, int freq, const spitest_param_set_t* pset, spitest_context_t* context)
{
//master config
spi_bus_config_t buspset=SPI_BUS_TEST_DEFAULT_CONFIG();
buspset.miso_io_num = MASTER_IOMUX_PIN_MISO;
buspset.mosi_io_num = MASTER_IOMUX_PIN_MOSI;
buspset.sclk_io_num = MASTER_IOMUX_PIN_SCLK;
//this does nothing, but avoid the driver from using native pins
if (!pset->master_iomux) buspset.quadhd_io_num = UNCONNECTED_PIN;
spi_device_interface_config_t devpset=SPI_DEVICE_TEST_DEFAULT_CONFIG();
devpset.spics_io_num = MASTER_IOMUX_PIN_CS;
devpset.mode = pset->mode;
const int cs_pretrans_max = 15;
if (pset->dup==HALF_DUPLEX_MISO) {
devpset.cs_ena_pretrans = cs_pretrans_max;
devpset.flags |= SPI_DEVICE_HALFDUPLEX;
} else if (pset->dup == HALF_DUPLEX_MOSI) {
devpset.cs_ena_pretrans = cs_pretrans_max;
devpset.flags |= SPI_DEVICE_NO_DUMMY;
} else {
devpset.cs_ena_pretrans = cs_pretrans_max;//20;
}
const int cs_posttrans_max = 15;
devpset.cs_ena_posttrans = cs_posttrans_max;
devpset.input_delay_ns = pset->slave_tv_ns;
devpset.clock_speed_hz = freq;
if (pset->master_limit != 0 && freq > pset->master_limit) devpset.flags |= SPI_DEVICE_NO_DUMMY;
#if !SOC_GDMA_SUPPORTED
int dma_chan = pset->master_dma_chan;
#else
int dma_chan = (pset->master_dma_chan == 0) ? 0 : -1;
#endif
TEST_ESP_OK(spi_bus_initialize(TEST_SPI_HOST, &buspset, dma_chan));
TEST_ESP_OK(spi_bus_add_device(TEST_SPI_HOST, &devpset, spi));
//prepare data for the slave
for (int i = 0; i < pset->test_size; i ++) {
/* in the single board, the data is send to the slave task, then to the driver.
* However, in this test we don't know the data received by the slave.
* So we send to the return queue of the slave directly.
*/
//xQueueSend( slave_context.data_to_send, &slave_txdata[i], portMAX_DELAY );
uint8_t slave_buffer[320+8];
int length;
if (pset->dup!=HALF_DUPLEX_MISO) {
length = context->master_trans[i].length;
} else {
length = context->master_trans[i].rxlength;
}
uint32_t* ptr = (uint32_t*)slave_buffer;
ptr[0] = length;
ptr[1] = (uint32_t)context->slave_trans[i].start;
if (context->master_trans[i].tx_buffer!=NULL) {
memcpy(ptr+2, context->master_trans[i].tx_buffer, (context->master_trans[i].length+7)/8);
}
//Send to return queue directly
xRingbufferSend(context->slave_context.data_received, slave_buffer, 8+(length+7)/8, portMAX_DELAY);
}
memset(context->master_rxbuf, 0x66, sizeof(context->master_rxbuf));
}
static void test_master_loop(const void *arg1, void* arg2)
{
const spitest_param_set_t *test_cfg = (spitest_param_set_t*)arg1;
spitest_context_t* context = (spitest_context_t*)arg2;
spi_device_handle_t spi;
spitest_init_transactions(test_cfg, context);
const int *timing_speed_array = test_cfg->freq_list;
ESP_LOGI(MASTER_TAG, "****************** %s ***************", test_cfg->pset_name);
for (int i=0; ; i++ ) {
const int freq = timing_speed_array[i];
if (freq==0) break;
if (test_cfg->freq_limit && freq > test_cfg->freq_limit) break;
ESP_LOGI(MASTER_TAG, "==============> %dk", freq/1000);
test_master_start(&spi, freq, test_cfg, context);
unity_wait_for_signal("slave ready");
for( int j= 0; j < test_cfg->test_size; j ++ ) {
//wait for both master and slave end
ESP_LOGI( MASTER_TAG, "=> test%d", j );
//send master tx data
vTaskDelay(20);
spi_transaction_t *t = &context->master_trans[j];
TEST_ESP_OK (spi_device_transmit(spi, t) );
int len = get_trans_len(test_cfg->dup, t);
spitest_master_print_data(t, len);
size_t rcv_len;
slave_rxdata_t *rcv_data = xRingbufferReceive( context->slave_context.data_received, &rcv_len, portMAX_DELAY );
spitest_slave_print_data(rcv_data, false);
//check result
bool check_master_data = (test_cfg->dup != HALF_DUPLEX_MOSI &&
(test_cfg->master_limit == 0 || freq <= test_cfg->master_limit));
const bool check_slave_data = false;
const bool check_len = false;
if (!check_master_data) {
ESP_LOGI(MASTER_TAG, "skip data check due to duplex mode or freq.");
} else {
TEST_ESP_OK(spitest_check_data(len, t, rcv_data, check_master_data,
check_len, check_slave_data));
}
//clean
vRingbufferReturnItem( context->slave_context.data_received, rcv_data );
}
master_free_device_bus(spi);
}
}
/************ Slave Code ***********************************************/
static void test_slave_init(void** arg)
{
TEST_ASSERT(*arg==NULL);
*arg = malloc(sizeof(spitest_context_t));
spitest_context_t* context = (spitest_context_t*)*arg;
TEST_ASSERT(context!=NULL);
context->slave_context = (spi_slave_task_context_t){};
esp_err_t err = init_slave_context( &context->slave_context );
TEST_ASSERT( err == ESP_OK );
xTaskCreate( spitest_slave_task, "spi_slave", 4096, &context->slave_context, 0, &context->handle_slave);
}
static void test_slave_deinit(void* arg)
{
spitest_context_t* context = (spitest_context_t*)arg;
vTaskDelete( context->handle_slave );
context->handle_slave = 0;
deinit_slave_context(&context->slave_context);
}
static void timing_slave_start(int speed, const spitest_param_set_t* pset, spitest_context_t *context)
{
//slave config
spi_bus_config_t slv_buscfg=SPI_BUS_TEST_DEFAULT_CONFIG();
slv_buscfg.miso_io_num = SLAVE_IOMUX_PIN_MISO;
slv_buscfg.mosi_io_num = SLAVE_IOMUX_PIN_MOSI;
slv_buscfg.sclk_io_num = SLAVE_IOMUX_PIN_SCLK;
//this does nothing, but avoid the driver from using native pins
if (!pset->slave_iomux) slv_buscfg.quadhd_io_num = UNCONNECTED_PIN;
spi_slave_interface_config_t slvcfg=SPI_SLAVE_TEST_DEFAULT_CONFIG();
slvcfg.spics_io_num = SLAVE_IOMUX_PIN_CS;
slvcfg.mode = pset->mode;
//Enable pull-ups on SPI lines so we don't detect rogue pulses when no master is connected.
slave_pull_up(&slv_buscfg, slvcfg.spics_io_num);
#if !SOC_GDMA_SUPPORTED
int slave_dma_chan = pset->slave_dma_chan;
#else
int slave_dma_chan = (pset->slave_dma_chan == 0) ? 0 : -1;
#endif
TEST_ESP_OK(spi_slave_initialize(TEST_SLAVE_HOST, &slv_buscfg, &slvcfg, slave_dma_chan));
//prepare data for the master
for (int i = 0; i < pset->test_size; i++) {
if (pset->dup==FULL_DUPLEX) {
memcpy(context->master_trans[i].rx_buffer, context->slave_trans[i].start, (context->master_trans[i].length+7)/8);
} else if (pset->dup==HALF_DUPLEX_MISO) {
memcpy(context->master_trans[i].rx_buffer, context->slave_trans[i].start, (context->master_trans[i].rxlength+7)/8);
}
}
}
static void test_slave_loop(const void *arg1, void* arg2)
{
const spitest_param_set_t *pset = (spitest_param_set_t*)arg1;
spitest_context_t* context = (spitest_context_t*)arg2;
ESP_LOGI(SLAVE_TAG, "****************** %s ***************", pset->pset_name);
spitest_init_transactions(pset, context);
const int *timing_speed_array = pset->freq_list;
for (int i=0; ; i++ ) {
const int freq = timing_speed_array[i];
if (freq==0) break;
if (pset->freq_limit != 0 && freq > pset->freq_limit) break;
ESP_LOGI(MASTER_TAG, "==============> %dk", timing_speed_array[i]/1000);
//Initialize SPI slave interface
timing_slave_start(freq, pset, context);
//prepare slave tx data
for (int i = 0; i < pset->test_size; i ++) {
xQueueSend( context->slave_context.data_to_send, &context->slave_trans[i], portMAX_DELAY );
//memcpy(context->master_trans[i].rx_buffer, context->slave_trans[i].start, (context->master_trans[i].length+7)/8);
}
vTaskDelay(50/portTICK_PERIOD_MS);
unity_send_signal("slave ready");
for( int i= 0; i < pset->test_size; i ++ ) {
//wait for both master and slave end
ESP_LOGI( MASTER_TAG, "===== test%d =====", i );
//send master tx data
vTaskDelay(20);
spi_transaction_t *t = &context->master_trans[i];
int len = get_trans_len(pset->dup, t);
spitest_master_print_data(t, FULL_DUPLEX);
size_t rcv_len;
slave_rxdata_t *rcv_data = xRingbufferReceive( context->slave_context.data_received, &rcv_len, portMAX_DELAY );
spitest_slave_print_data(rcv_data, true);
//check result
const bool check_master_data = false;
bool check_slave_data = (pset->dup!=HALF_DUPLEX_MISO);
const bool check_len = true;
TEST_ESP_OK(spitest_check_data(len, t, rcv_data, check_master_data, check_len, check_slave_data));
//clean
vRingbufferReturnItem( context->slave_context.data_received, rcv_data );
}
TEST_ASSERT(spi_slave_free(TEST_SLAVE_HOST) == ESP_OK);
}
}
/************ Timing Test ***********************************************/
static spitest_param_set_t timing_conf[] = {
{ .pset_name = "FULL_DUP, BOTH IOMUX",
.freq_limit = ESP_SPI_SLAVE_MAX_FREQ,
.master_limit = SPI_MASTER_FREQ_16M,
.dup = FULL_DUPLEX,
.master_iomux= true,
.slave_iomux = true,
.slave_tv_ns = TV_WITH_ESP_SLAVE,
},
{ .pset_name = "FULL_DUP, MASTER IOMUX",
.freq_limit = ESP_SPI_SLAVE_MAX_FREQ,
.master_limit = SPI_MASTER_FREQ_11M,
.dup = FULL_DUPLEX,
.master_iomux = true,
.slave_iomux = false,
.slave_tv_ns = TV_WITH_ESP_SLAVE_GPIO,
},
{ .pset_name = "FULL_DUP, SLAVE IOMUX",
.freq_limit = ESP_SPI_SLAVE_MAX_FREQ,
.master_limit = SPI_MASTER_FREQ_11M,
.dup = FULL_DUPLEX,
.master_iomux = false,
.slave_iomux = true,
.slave_tv_ns = TV_WITH_ESP_SLAVE,
},
{ .pset_name = "FULL_DUP, BOTH GPIO",
.freq_limit = ESP_SPI_SLAVE_MAX_FREQ,
.master_limit = SPI_MASTER_FREQ_9M,
.dup = FULL_DUPLEX,
.master_iomux = false,
.slave_iomux = false,
.slave_tv_ns = TV_WITH_ESP_SLAVE_GPIO,
},
{ .pset_name = "MOSI_DUP, BOTH IOMUX",
.freq_limit = ESP_SPI_SLAVE_MAX_FREQ,
.dup = HALF_DUPLEX_MOSI,
.master_iomux= true,
.slave_iomux = true,
.slave_tv_ns = TV_WITH_ESP_SLAVE,
},
{ .pset_name = "MOSI_DUP, MASTER IOMUX",
.freq_limit = ESP_SPI_SLAVE_MAX_FREQ,
.dup = HALF_DUPLEX_MOSI,
.master_iomux= true,
.slave_iomux = false,
.slave_tv_ns = TV_WITH_ESP_SLAVE_GPIO,
},
{ .pset_name = "MOSI_DUP, SLAVE IOMUX",
.freq_limit = ESP_SPI_SLAVE_MAX_FREQ,
.dup = HALF_DUPLEX_MOSI,
.master_iomux= false,
.slave_iomux = true,
.slave_tv_ns = TV_WITH_ESP_SLAVE,
},
{ .pset_name = "MOSI_DUP, BOTH GPIO",
.freq_limit = ESP_SPI_SLAVE_MAX_FREQ,
.dup = HALF_DUPLEX_MOSI,
.master_iomux= false,
.slave_iomux = false,
.slave_tv_ns = TV_WITH_ESP_SLAVE_GPIO,
},
{ .pset_name = "MISO_DUP, BOTH IOMUX",
.freq_limit = ESP_SPI_SLAVE_MAX_FREQ,
.dup = HALF_DUPLEX_MISO,
.master_iomux = true,
.slave_iomux = true,
.slave_tv_ns = TV_WITH_ESP_SLAVE,
},
{ .pset_name = "MISO_DUP, MASTER IOMUX",
.freq_limit = ESP_SPI_SLAVE_MAX_FREQ,
.dup = HALF_DUPLEX_MISO,
.master_iomux = true,
.slave_iomux = false,
.slave_tv_ns = TV_WITH_ESP_SLAVE_GPIO,
},
{ .pset_name = "MISO_DUP, SLAVE IOMUX",
.freq_limit = ESP_SPI_SLAVE_MAX_FREQ,
.dup = HALF_DUPLEX_MISO,
.master_iomux = false,
.slave_iomux = true,
.slave_tv_ns = TV_WITH_ESP_SLAVE,
},
{ .pset_name = "MISO_DUP, BOTH GPIO",
.freq_limit = ESP_SPI_SLAVE_MAX_FREQ,
.dup = HALF_DUPLEX_MISO,
.master_iomux = false,
.slave_iomux = false,
.slave_tv_ns = TV_WITH_ESP_SLAVE_GPIO,
},
};
TEST_SPI_MASTER_SLAVE(TIMING, timing_conf, "")
/************ Mode Test ***********************************************/
#define FREQ_LIMIT_MODE SPI_MASTER_FREQ_16M
//Set to this input delay so that the master will read with delay until 7M
#define DELAY_HCLK_UNTIL_7M 12.5*3
static int test_freq_mode_ms[]={
100*1000,
6*1000*1000,
7*1000*1000,
SPI_MASTER_FREQ_8M, //maximum freq MISO stable before next latch edge
SPI_MASTER_FREQ_9M, //maximum freq MISO stable before next latch edge
SPI_MASTER_FREQ_10M,
SPI_MASTER_FREQ_11M,
SPI_MASTER_FREQ_13M,
SPI_MASTER_FREQ_16M,
SPI_MASTER_FREQ_20M,
0,
};
static int test_freq_20M_only[]={
SPI_MASTER_FREQ_20M,
0,
};
spitest_param_set_t mode_conf[] = {
//non-DMA tests
{ .pset_name = "mode 0, no DMA",
.freq_list = test_freq_mode_ms,
.master_limit = FREQ_LIMIT_MODE,
.dup = FULL_DUPLEX,
.master_iomux= true,
.slave_iomux = true,
.slave_tv_ns = TV_WITH_ESP_SLAVE,
.mode = 0,
},
{ .pset_name = "mode 1, no DMA",
.freq_list = test_freq_mode_ms,
.master_limit = FREQ_LIMIT_MODE,
.dup = FULL_DUPLEX,
.master_iomux= true,
.slave_iomux = true,
.slave_tv_ns = TV_WITH_ESP_SLAVE,
.mode = 1,
},
{ .pset_name = "mode 2, no DMA",
.freq_list = test_freq_mode_ms,
.master_limit = FREQ_LIMIT_MODE,
.dup = FULL_DUPLEX,
.master_iomux= true,
.slave_iomux = true,
.slave_tv_ns = TV_WITH_ESP_SLAVE,
.mode = 2,
},
{ .pset_name = "mode 3, no DMA",
.freq_list = test_freq_mode_ms,
.master_limit = FREQ_LIMIT_MODE,
.dup = FULL_DUPLEX,
.master_iomux= true,
.slave_iomux = true,
.slave_tv_ns = TV_WITH_ESP_SLAVE,
.mode = 3,
},
//the master can only read to 16MHz, use half-duplex mode to read at 20.
{ .pset_name = "mode 0, no DMA, 20M",
.freq_list = test_freq_20M_only,
.dup = HALF_DUPLEX_MISO,
.master_iomux= true,
.slave_iomux = true,
.slave_tv_ns = TV_WITH_ESP_SLAVE,
.mode = 0,
},
{ .pset_name = "mode 1, no DMA, 20M",
.freq_list = test_freq_20M_only,
.dup = HALF_DUPLEX_MISO,
.master_iomux= true,
.slave_iomux = true,
.slave_tv_ns = TV_WITH_ESP_SLAVE,
.mode = 1,
},
{ .pset_name = "mode 2, no DMA, 20M",
.freq_list = test_freq_20M_only,
.dup = HALF_DUPLEX_MISO,
.master_iomux= true,
.slave_iomux = true,
.slave_tv_ns = TV_WITH_ESP_SLAVE,
.mode = 2,
},
{ .pset_name = "mode 3, no DMA, 20M",
.freq_list = test_freq_20M_only,
.dup = HALF_DUPLEX_MISO,
.master_iomux= true,
.slave_iomux = true,
.slave_tv_ns = TV_WITH_ESP_SLAVE,
.mode = 3,
},
//DMA tests
{ .pset_name = "mode 0, DMA",
.freq_list = test_freq_mode_ms,
.master_limit = FREQ_LIMIT_MODE,
.dup = FULL_DUPLEX,
.master_iomux= true,
.slave_iomux = true,
.slave_tv_ns = DELAY_HCLK_UNTIL_7M,
.mode = 0,
.master_dma_chan = 1,
.slave_dma_chan = 1,
.length_aligned = true,
},
{ .pset_name = "mode 1, DMA",
.freq_list = test_freq_mode_ms,
.master_limit = FREQ_LIMIT_MODE,
.dup = FULL_DUPLEX,
.master_iomux= true,
.slave_iomux = true,
.slave_tv_ns = TV_WITH_ESP_SLAVE,
.mode = 1,
.master_dma_chan = 1,
.slave_dma_chan = 1,
.length_aligned = true,
},
{ .pset_name = "mode 2, DMA",
.freq_list = test_freq_mode_ms,
.master_limit = FREQ_LIMIT_MODE,
.dup = FULL_DUPLEX,
.master_iomux= true,
.slave_iomux = true,
.slave_tv_ns = DELAY_HCLK_UNTIL_7M,
.mode = 2,
.master_dma_chan = 1,
.slave_dma_chan = 1,
.length_aligned = true,
},
{ .pset_name = "mode 3, DMA",
.freq_list = test_freq_mode_ms,
.master_limit = FREQ_LIMIT_MODE,
.dup = FULL_DUPLEX,
.master_iomux= true,
.slave_iomux = true,
.slave_tv_ns = TV_WITH_ESP_SLAVE,
.mode = 3,
.master_dma_chan = 1,
.slave_dma_chan = 1,
.length_aligned = true,
},
//the master can only read to 16MHz, use half-duplex mode to read at 20.
{ .pset_name = "mode 0, DMA, 20M",
.freq_list = test_freq_20M_only,
.dup = HALF_DUPLEX_MISO,
.master_iomux= true,
.slave_iomux = true,
.slave_tv_ns = TV_WITH_ESP_SLAVE,
.mode = 0,
.master_dma_chan = 1,
.slave_dma_chan = 1,
},
{ .pset_name = "mode 1, DMA, 20M",
.freq_list = test_freq_20M_only,
.dup = HALF_DUPLEX_MISO,
.master_iomux= true,
.slave_iomux = true,
.slave_tv_ns = TV_WITH_ESP_SLAVE,
.mode = 1,
.master_dma_chan = 1,
.slave_dma_chan = 1,
},
{ .pset_name = "mode 2, DMA, 20M",
.freq_list = test_freq_20M_only,
.dup = HALF_DUPLEX_MISO,
.master_iomux= true,
.slave_iomux = true,
.slave_tv_ns = TV_WITH_ESP_SLAVE,
.mode = 2,
.master_dma_chan = 1,
.slave_dma_chan = 1,
},
{ .pset_name = "mode 3, DMA, 20M",
.freq_list = test_freq_20M_only,
.dup = HALF_DUPLEX_MISO,
.master_iomux= true,
.slave_iomux = true,
.slave_tv_ns = TV_WITH_ESP_SLAVE,
.mode = 3,
.master_dma_chan = 1,
.slave_dma_chan = 1,
},
};
TEST_SPI_MASTER_SLAVE(MODE, mode_conf, "")
#endif // !TEMPORARY_DISABLED_FOR_TARGETS(ESP32S2, ESP32S3, ESP32C3)
#endif // !TEMPORARY_DISABLED_FOR_TARGETS(ESP32C3)
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