From 1e6ff8433dc7c1e80ce03d75351fc83c810767ac Mon Sep 17 00:00:00 2001 From: Sugar Glider Date: Sun, 6 Apr 2025 19:28:45 -0300 Subject: [PATCH 1/2] feat(rmt): refactored RMT loopback example --- .../examples/RMT/RMTLoopback/RMTLoopback.ino | 51 ++++++++++++------- 1 file changed, 33 insertions(+), 18 deletions(-) diff --git a/libraries/ESP32/examples/RMT/RMTLoopback/RMTLoopback.ino b/libraries/ESP32/examples/RMT/RMTLoopback/RMTLoopback.ino index 17e7af290bf..0de98aa35f8 100644 --- a/libraries/ESP32/examples/RMT/RMTLoopback/RMTLoopback.ino +++ b/libraries/ESP32/examples/RMT/RMTLoopback/RMTLoopback.ino @@ -1,4 +1,4 @@ -// Copyright 2023 Espressif Systems (Shanghai) PTE LTD +// Copyright 2025 Espressif Systems (Shanghai) PTE LTD // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. @@ -35,14 +35,11 @@ rmt_data_t my_data[256]; rmt_data_t data[256]; -static EventGroupHandle_t events; - #define RMT_FREQ 10000000 // tick time is 100ns -#define RMT_NUM_EXCHANGED_DATA 30 +#define RMT_NUM_EXCHANGED_DATA 32 void setup() { Serial.begin(115200); - events = xEventGroupCreate(); if (!rmtInit(RMT_TX_PIN, RMT_TX_MODE, RMT_MEM_NUM_BLOCKS_1, RMT_FREQ)) { Serial.println("init sender failed\n"); @@ -50,25 +47,43 @@ void setup() { if (!rmtInit(RMT_RX_PIN, RMT_RX_MODE, RMT_MEM_RX, RMT_FREQ)) { Serial.println("init receiver failed\n"); } + Serial.println(); + Serial.println("RMT tick set to: 100ns"); // End of transmission shall be detected when line is idle for 2us = 20*100ns rmtSetRxMaxThreshold(RMT_RX_PIN, 20); // Disable Glitch filter rmtSetRxMinThreshold(RMT_RX_PIN, 0); - Serial.println("real tick set to: 100ns"); - Serial.printf("\nPlease connect GPIO %d to GPIO %d, now.\n", RMT_TX_PIN, RMT_RX_PIN); -} - -void loop() { - // Init data - int i; - for (i = 0; i < 255; i++) { - data[i].val = 0x80010001 + ((i % 13) << 16) + 13 - (i % 13); + // create multiple pulses with different width to be sent + for (int i = 0; i < 255; i++) { + data[i].level0 = 1; // HIGH + data[i].duration0 = 1 + 13 - (i % 13); // number of Tick on High + data[i].level1 = 0; // LOW + data[i].duration1 = 1 + (i % 13); // number of Ticks on Low my_data[i].val = 0; } data[255].val = 0; + Serial.println(); + Serial.println("===================================================================================================="); + Serial.println("Preloaded Data that will sent (time in 0.1us):"); + // Printout the received data plus the original values + for (int i = 0; i < RMT_NUM_EXCHANGED_DATA; i++) { + Serial.printf("%08lx=[%c 0x%02x|%c 0x%02x] ", data[i].val, + data[i].level0 ? 'H' : 'L', data[i].duration0, + data[i].level1 ? 'H' : 'L', data[i].duration1); + if (!((i + 1) % 4)) { + Serial.println(); + } + } + Serial.println("===================================================================================================="); + Serial.printf("Please connect GPIO %d to GPIO %d, now.", RMT_TX_PIN, RMT_RX_PIN); + Serial.println(); + Serial.println(); +} + +void loop() { // Start an async data read size_t rx_num_symbols = RMT_NUM_EXCHANGED_DATA; rmtReadAsync(RMT_RX_PIN, my_data, &rx_num_symbols); @@ -84,13 +99,13 @@ void loop() { Serial.printf("Got %d RMT symbols\n", rx_num_symbols); // Printout the received data plus the original values - for (i = 0; i < 60; i++) { + for (int i = 0; i < RMT_NUM_EXCHANGED_DATA; i++) { Serial.printf("%08lx=%08lx ", my_data[i].val, data[i].val); if (!((i + 1) % 4)) { - Serial.println(""); + Serial.println(); } } - Serial.println("\n"); + Serial.println(); - delay(500); + delay(2000); } From 940ecfbfdaf09b71b1b91cfceeb15f0cfe9046ab Mon Sep 17 00:00:00 2001 From: "pre-commit-ci-lite[bot]" <117423508+pre-commit-ci-lite[bot]@users.noreply.github.com> Date: Wed, 9 Apr 2025 08:29:00 +0000 Subject: [PATCH 2/2] ci(pre-commit): Apply automatic fixes --- .../ESP32/examples/RMT/RMTLoopback/RMTLoopback.ino | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-) diff --git a/libraries/ESP32/examples/RMT/RMTLoopback/RMTLoopback.ino b/libraries/ESP32/examples/RMT/RMTLoopback/RMTLoopback.ino index 0de98aa35f8..5d0406aee0e 100644 --- a/libraries/ESP32/examples/RMT/RMTLoopback/RMTLoopback.ino +++ b/libraries/ESP32/examples/RMT/RMTLoopback/RMTLoopback.ino @@ -57,10 +57,10 @@ void setup() { // create multiple pulses with different width to be sent for (int i = 0; i < 255; i++) { - data[i].level0 = 1; // HIGH - data[i].duration0 = 1 + 13 - (i % 13); // number of Tick on High - data[i].level1 = 0; // LOW - data[i].duration1 = 1 + (i % 13); // number of Ticks on Low + data[i].level0 = 1; // HIGH + data[i].duration0 = 1 + 13 - (i % 13); // number of Tick on High + data[i].level1 = 0; // LOW + data[i].duration1 = 1 + (i % 13); // number of Ticks on Low my_data[i].val = 0; } data[255].val = 0; @@ -69,9 +69,7 @@ void setup() { Serial.println("Preloaded Data that will sent (time in 0.1us):"); // Printout the received data plus the original values for (int i = 0; i < RMT_NUM_EXCHANGED_DATA; i++) { - Serial.printf("%08lx=[%c 0x%02x|%c 0x%02x] ", data[i].val, - data[i].level0 ? 'H' : 'L', data[i].duration0, - data[i].level1 ? 'H' : 'L', data[i].duration1); + Serial.printf("%08lx=[%c 0x%02x|%c 0x%02x] ", data[i].val, data[i].level0 ? 'H' : 'L', data[i].duration0, data[i].level1 ? 'H' : 'L', data[i].duration1); if (!((i + 1) % 4)) { Serial.println();