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Fix exception 9 when modbus tx enable is used

This commit is contained in:
Theo Arends 2022-12-28 15:19:09 +01:00
parent 2e1f8fd756
commit c1484f761c
2 changed files with 6 additions and 7 deletions
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2
lib/default/TasmotaSerial-3.6.0/src/TasmotaSerial.cpp
View File

@ -460,7 +460,7 @@ size_t TasmotaSerial::write(uint8_t b) {
size = 1;
}
if (m_tx_enable_pin > -1) {
delay(1);
delayMicroseconds(800); // delay(1) will exception here
digitalWrite(m_tx_enable_pin, LOW);
}
return size;

11
lib/lib_basic/TasmotaModbus-3.6.0/src/TasmotaModbus.cpp
View File

@ -31,11 +31,6 @@ TasmotaModbus::TasmotaModbus(int receive_pin, int transmit_pin, int tx_enable_pi
{
// setTransmitEnablePin(tx_enable_pin);
mb_tx_enable_pin = tx_enable_pin;
if (mb_tx_enable_pin > -1) {
pinMode(mb_tx_enable_pin, OUTPUT);
digitalWrite(mb_tx_enable_pin, LOW);
}
mb_address = 0;
}
@ -64,6 +59,10 @@ int TasmotaModbus::Begin(long speed, uint32_t config)
if (begin(speed, config)) {
result = 1;
if (hardwareSerial()) { result = 2; }
if (mb_tx_enable_pin > -1) {
pinMode(mb_tx_enable_pin, OUTPUT);
digitalWrite(mb_tx_enable_pin, LOW);
}
}
return result;
}
@ -161,7 +160,7 @@ uint8_t TasmotaModbus::Send(uint8_t device_address, uint8_t function_code, uint1
}
write(frame, framepointer);
if (mb_tx_enable_pin > -1) {
delay(1);
delayMicroseconds(800); // delay(1) will exception here
digitalWrite(mb_tx_enable_pin, LOW);
}
free(frame);