67 lines
1.5 KiB
Arduino
67 lines
1.5 KiB
Arduino
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#include "Arduino.h"
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#include "esp32-hal.h"
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extern "C" void receive_trampoline(uint32_t *data, size_t len, void * arg);
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class MyProcessor {
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private:
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rmt_obj_t* rmt_recv = NULL;
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float realNanoTick;
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uint32_t buff; // rolling buffer of most recent 32 bits.
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int at = 0;
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public:
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MyProcessor(uint8_t pin, float nanoTicks) {
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if ((rmt_recv = rmtInit(pin, RMT_RX_MODE, RMT_MEM_192)) == NULL)
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{
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Serial.println("init receiver failed\n");
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}
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realNanoTick = rmtSetTick(rmt_recv, nanoTicks);
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};
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void begin() {
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rmtRead(rmt_recv, receive_trampoline, this);
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};
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void process(rmt_data_t *data, size_t len) {
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for (int i = 0; len; len--) {
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if (data[i].duration0 == 0)
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break;
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buff = (buff << 1) | (data[i].level0 ? 1 : 0);
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i++;
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if (data[i].duration1 == 0)
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break;
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buff = (buff << 1) | (data[i].level1 ? 1 : 0);
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i++;
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};
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};
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uint32_t val() {
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return buff;
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}
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};
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void receive_trampoline(uint32_t *data, size_t len, void * arg)
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{
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MyProcessor * p = (MyProcessor *)arg;
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p->process((rmt_data_t*) data, len);
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}
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// Attach 3 processors to GPIO 4, 5 and 10 with different tick/speeds.
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MyProcessor mp1 = MyProcessor(4, 1000);
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MyProcessor mp2 = MyProcessor(5, 1000);
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MyProcessor mp3 = MyProcessor(10, 500);
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void setup()
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{
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Serial.begin(115200);
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mp1.begin();
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mp2.begin();
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mp3.begin();
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}
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void loop()
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{
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Serial.printf("GPIO 4: %08x 5: %08x 10: %08x\n", mp1.val(), mp2.val(), mp3.val());
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delay(500);
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}
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