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* renamed .ino (must be identical to parent folder name)

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* build CRC over settings, only if the CRC matches settings are applied
* send command 0x80 (set time was wrong)
* improved crc16 routine
* added statistics for received commands and send statistics (channels are not correct for now!)
* receive of commands 0x01, 0x02, 0x03, 0x81 and 0x84 working
This commit is contained in:
lumapu 2022-04-20 08:58:23 +02:00
parent 5f927ad8c5
commit a7add69719
11 changed files with 226 additions and 123 deletions
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43
tools/esp8266/crc.cpp Normal file
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#include "crc.h"
uint8_t crc8(uint8_t buf[], uint8_t len) {
uint8_t crc = CRC8_INIT;
for(uint8_t i = 0; i < len; i++) {
crc ^= buf[i];
for(uint8_t b = 0; b < 8; b ++) {
crc = (crc << 1) ^ ((crc & 0x80) ? CRC8_POLY : 0x00);
}
}
return crc;
}
uint16_t crc16(uint8_t buf[], uint8_t len) {
uint16_t crc = 0xffff;
uint8_t shift = 0;
for(uint8_t i = 0; i < len; i ++) {
crc = crc ^ buf[i];
for(uint8_t bit = 0; bit < 8; bit ++) {
shift = (crc & 0x0001);
crc = crc >> 1;
if(shift != 0)
crc = crc ^ 0xA001;
}
}
return crc;
}
uint16_t crc16nrf24(uint8_t buf[], uint16_t lenBits, uint16_t startBit, uint16_t crcIn) {
uint16_t crc = crcIn;
uint8_t idx, val = buf[(startBit >> 3)];
for(uint16_t bit = startBit; bit < lenBits; bit ++) {
idx = bit & 0x07;
if(0 == idx)
val = buf[(bit >> 3)];
crc ^= 0x8000 & (val << (8 + idx));
crc = (crc & 0x8000) ? ((crc << 1) ^ CRC16_NRF24_POLYNOM) : (crc << 1);
}
return crc;
}