alex/esp-idf
alex/esp-idf
1
0
Fork 0
mirror of https://github.com/espressif/esp-idf.git synced 2024-09-20 20:56:01 -04:00
Code Issues Actions 3 Packages Projects Releases Wiki Activity

Merge branch 'bugfix/driver_rs485_fix_test_sync_issues_v44' into 'release/v4.4'

Browse Source 
driver: uart rs485 fix test sync issues and fail threshold (backport v4.4)

See merge request espressif/esp-idf!19610
This commit is contained in:
morris 2022-09-06 17:23:46 +08:00
commit e3c1fde6c4
1 changed files with 25 additions and 24 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

49
components/driver/test/test_rs485.c
View File

@ -5,7 +5,6 @@
*/
/* This file is from test_uart.c, but mainly about RS485 */
#include <string.h>
#include <sys/param.h>
#include "unity.h"
@ -14,29 +13,30 @@
#include "esp_log.h"
#include "esp_system.h" // for uint32_t esp_random()
#define UART_TAG "Uart"
#define UART_NUM1 (UART_NUM_1)
#define BUF_SIZE (100)
#define UART1_RX_PIN (22)
#define UART1_TX_PIN (23)
#define UART_BAUD_11520 (11520)
#define UART_BAUD_115200 (115200)
#define TOLERANCE (0.02) //baud rate error tolerance 2%.
#define UART_TOLERANCE_CHECK(val, uper_limit, lower_limit) ( (val) <= (uper_limit) && (val) >= (lower_limit) )
#define UART_NUM1 (UART_NUM_1)
#define UART_BAUD_RATE (115200 * 10)
#define BUF_SIZE (512)
#define UART1_RX_PIN (22)
#define UART1_TX_PIN (23)
// RTS for RS485 Half-Duplex Mode manages DE/~RE
#define UART1_RTS_PIN (18)
#define UART1_RTS_PIN (18)
// Number of packets to be send during test
#define PACKETS_NUMBER (10)
#define PACKETS_NUMBER (30)
// Wait timeout for uart driver
#define PACKET_READ_TICS (1000 / portTICK_RATE_MS)
#define PACKET_READ_TICS (2000 / portTICK_PERIOD_MS)
// This is for workarond to avoid master-slave syncronization issues
// when slave gets the "Master_started" signal with delay ~2-3 seconds
#define TEST_ALLOW_PROC_FAIL (10)
#define TEST_CHECK_PROC_FAIL(fails, threshold) TEST_ASSERT((fails * 100 / PACKETS_NUMBER) <= threshold)
#if !TEMPORARY_DISABLED_FOR_TARGETS(ESP32S2, ESP32S3, ESP32C3)
//No runners
static const char *TAG = "rs485_test";
// The table for fast CRC16 calculation
static const uint8_t crc_hi[] = {
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
@ -158,7 +158,7 @@ static uint16_t buffer_fill_random(uint8_t *buffer, size_t length)
static void rs485_init(void)
{
uart_config_t uart_config = {
.baud_rate = UART_BAUD_115200,
.baud_rate = UART_BAUD_RATE,
.data_bits = UART_DATA_8_BITS,
.parity = UART_PARITY_DISABLE,
.stop_bits = UART_STOP_BITS_1,
@ -166,7 +166,7 @@ static void rs485_init(void)
.rx_flow_ctrl_thresh = 120,
.source_clk = UART_SCLK_APB,
};
printf("RS485 port initialization...\r\n");
ESP_LOGI(TAG, "RS485 port initialization...");
TEST_ESP_OK(uart_wait_tx_idle_polling(UART_NUM1));
// Configure UART1 parameters
TEST_ESP_OK(uart_param_config(UART_NUM1, &uart_config));
@ -205,12 +205,12 @@ static void rs485_slave(void)
rs485_init();
uint8_t* slave_data = (uint8_t*) malloc(BUF_SIZE);
uint16_t err_count = 0, good_count = 0;
printf("Start recieve loop.\r\n");
unity_send_signal("Slave_ready");
unity_wait_for_signal("Master_started");
ESP_LOGI(TAG, "Start recieve loop.");
for(int pack_count = 0; pack_count < PACKETS_NUMBER; pack_count++) {
//Read slave_data from UART
int len = uart_read_bytes(UART_NUM1, slave_data, BUF_SIZE, (PACKET_READ_TICS * 2));
int len = uart_read_bytes(UART_NUM1, slave_data, BUF_SIZE, PACKET_READ_TICS);
//Write slave_data back to UART
if (len > 2) {
esp_err_t status = print_packet_data("Received ", slave_data, len);
@ -229,12 +229,12 @@ static void rs485_slave(void)
err_count++;
}
}
printf("Test completed. Received packets = %d, errors = %d\r\n", good_count, err_count);
ESP_LOGI(TAG, "Test completed. Received packets = %d, errors = %d", good_count, err_count);
// Wait for packet to be sent
uart_wait_tx_done(UART_NUM1, PACKET_READ_TICS);
free(slave_data);
uart_driver_delete(UART_NUM1);
TEST_ASSERT(err_count < 2);
TEST_CHECK_PROC_FAIL(err_count, TEST_ALLOW_PROC_FAIL);
}
// Master test of multi device test case.
@ -249,7 +249,7 @@ static void rs485_master(void)
// The master test case should be synchronized with slave
unity_wait_for_signal("Slave_ready");
unity_send_signal("Master_started");
printf("Start recieve loop.\r\n");
ESP_LOGI(TAG, "Start recieve loop.");
for(int i = 0; i < PACKETS_NUMBER; i++) {
// Form random buffer with CRC16
buffer_fill_random(master_buffer, BUF_SIZE);
@ -259,7 +259,7 @@ static void rs485_master(void)
uart_write_bytes(UART_NUM1, (char*)master_buffer, BUF_SIZE);
uart_wait_tx_idle_polling(UART_NUM1);
// Read translated packet from slave
int len = uart_read_bytes(UART_NUM1, slave_buffer, BUF_SIZE, (PACKET_READ_TICS * 2));
int len = uart_read_bytes(UART_NUM1, slave_buffer, BUF_SIZE, PACKET_READ_TICS);
// Check if the received packet is too short
if (len > 2) {
// Print received packet and check checksum
@ -280,9 +280,10 @@ static void rs485_master(void)
uart_wait_tx_done(UART_NUM1, PACKET_READ_TICS);
// Free the buffer and delete driver at the end
free(master_buffer);
free(slave_buffer);
uart_driver_delete(UART_NUM1);
TEST_ASSERT(err_count <= 1);
printf("Test completed. Received packets = %d, errors = %d\r\n", (uint16_t)good_count, (uint16_t)err_count);
ESP_LOGI(TAG, "Test completed. Received packets = %d, errors = %d", good_count, err_count);
TEST_CHECK_PROC_FAIL(err_count, TEST_ALLOW_PROC_FAIL);
}
/*