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Fix CSE7761 read crc calculation

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This commit is contained in:
Theo Arends 2021-03-03 18:17:54 +01:00
parent 22408beacd
commit 2b1be6ef3d
1 changed files with 11 additions and 4 deletions
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15
tasmota/xnrg_19_cse7761.ino
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@ -136,10 +136,16 @@ uint32_t Cse7761Read(uint32_t reg) {
AddLog(LOG_LEVEL_DEBUG_MORE, PSTR("C61: Rcvd %d, Data %*_H"), rcvd, rcvd, buffer);
int result = 0;
uint8_t crc = 0xA5 + reg;
#ifndef CSE7761_REMOVE_CHECKS
if (rcvd > 5) {
return 0;
}
#endif
rcvd--;
for (uint32_t i = 0; i < rcvd -1; i++) {
uint32_t result = 0;
uint8_t crc = 0xA5 + reg;
for (uint32_t i = 0; i < rcvd; i++) {
result = (result << 8) | buffer[i];
crc += buffer[i];
}
@ -147,7 +153,7 @@ uint32_t Cse7761Read(uint32_t reg) {
if (crc != buffer[rcvd]) {
AddLog(LOG_LEVEL_DEBUG, PSTR("C61: CRC error"));
#ifndef CSE7761_REMOVE_CHECKS
result = 0;
return 0;
#endif
}
@ -398,6 +404,7 @@ void Cse7761DrvInit(void) {
CSE7761Data.init = 3; // Init setup steps
Energy.phase_count = 2; // Handle two channels as two phases
Energy.voltage_common = true; // Use common voltage
Energy.frequency_common = true; // Use common frequency
TasmotaGlobal.energy_driver = XNRG_19;
}
}