Trying to write character from Arduino pin to Putty - c++

Question

So, i am writing a code to send a character (8 data-bits) and a stop bit to Putty using the Arduino timer 1 interrupt. When I try to send a character it shows something in Putty, so it does send, but not the character I am sending. I have searched for all sorts of documentation but i can't seem to find what i need, also I don't know what I'm doing wrong. Code:
#define Fosc 16000000
int rxPin = 7;
int txPin = 8;
int dataBits = 0;
uint8_t txBuffer;
void setup() {
Serial.begin(9600);
pinMode(txPin, OUTPUT);
pinMode(rxPin, INPUT);
setupInterrupts(9600);
}
void loop() {
ReadMessage();
}
void setupInterrupts(long baud)
{
long cmr = ((Fosc / (64 * baud)) - 1); //compare match register
noInterrupts();
TCCR1A = 0;
TCCR1B = 0;
TCNT1 = 0; //counter value to 0
OCR1A = cmr;
TCCR1B |= (1 << WGM12); // CTC mode
TCCR1B |= (1 << CS11) | (1 << CS10); // Set bits for 64 prescaler
//TIMSK1 = _BV(OCIE1A); //attach
interrupts();
}
ISR(TIMER1_COMPA_vect)
{
transmit();
}
void transmit()
{
if (dataBits < 8)
{
if (txBuffer & 0b1) {
digitalWrite(txPin, HIGH);
}
else {
digitalWrite(txPin, LOW);
}
txBuffer >>= 1;
}
dataBits++;
if (dataBits == 9)
{
dataBits = 0;
digitalWrite(txPin, HIGH);
TIMSK1 &= ~_BV(OCIE1A); //detach
}
}
bool getParity(unsigned int n)
{
bool parity = 0;
while (n)
{
parity = !parity;
n = n & (n - 1);
}
return parity;
}
int incomingByte;
void ReadMessage() {
if (Serial.available() > 0) {
incomingByte = Serial.read();
char receivedCharacter = (char) incomingByte;
txBuffer = receivedCharacter;
Serial.println((char)txBuffer);
TIMSK1 = _BV(OCIE1A); //attach
}
}
Putty Output