Apple-2-HW/afterburner
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version 0.4 - baud rate changed to 57600. Please re-upload .ino sketch.

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After testing with genuine arduino uno I could not make
it to work reliably using the original baudrate 38400 on
Windows 7. Linux worked OK, but Windows 7 inserted extra 2
bytes 0xFE or 0xFF at the beginnig of the serial communication
(at least that's what arduino read from the serial line).
Baudrate 57600 so far had no issue, another reliable option
seem to be 9600.
This commit is contained in:
ole00 2022-04-01 22:15:43 +01:00
parent 443072e423
commit b5d6fa6683
3 changed files with 24 additions and 8 deletions
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3
afterburner.ino
View File

@ -253,12 +253,13 @@ void printHelp(char full) {
// setup the Arduino board
void setup() {
// initialize serial:
Serial.begin(38400);
Serial.begin(57600);
isUploading = 0;
endOfLine = 0;
echoEnabled = 0;
mapUploaded = 0;
typeCheck = 1; //do type check
lineIndex = 0;
// Serial output from the GAL chip, input for Arduino
pinMode(PIN_SDOUT, INPUT);

9
src_pc/afterburner.c
View File

@ -51,7 +51,7 @@ To compile: gcc -g3 -O0 afterburner afterburner.c
#include "serial_port.h"
#define VERSION "v.0.3.1"
#define VERSION "v.0.4"
#define MAX_LINE 200
@ -466,7 +466,7 @@ static char readJedec(void) {
}
static int openSerial(void) {
char buf[512];
char buf[512] = {0};
char devName[256] = {0};
int total;
int labelPos;
@ -596,8 +596,13 @@ static int waitForSerialPrompt(char* buf, int bufSize, int maxDelay) {
}
}
if (maxDelay > 0) {
/* WIN_API handles timeout itself */
#ifndef _USE_WIN_API_
usleep(3 * 1000);
maxDelay -= 3;
#else
maxDelay -= 30;
#endif
}
}
return bufPos;

20
src_pc/serial_port.h
View File

@ -37,18 +37,26 @@ static inline SerialDeviceHandle serialDeviceOpen(char* deviceName) {
return INVALID_HANDLE;
}
dcbSerialParams.BaudRate = CBR_38400; // Setting BaudRate = 38400
dcbSerialParams.BaudRate = CBR_57600; // Setting BaudRate
dcbSerialParams.ByteSize = 8; // Setting ByteSize = 8
dcbSerialParams.StopBits = ONESTOPBIT;// Setting StopBits = 1
dcbSerialParams.Parity = NOPARITY; // Setting Parity = None
dcbSerialParams.fOutxCtsFlow = FALSE;
dcbSerialParams.fOutxDsrFlow = FALSE;
dcbSerialParams.fDtrControl = DTR_CONTROL_DISABLE;
dcbSerialParams.fOutX = FALSE;
dcbSerialParams.fInX = FALSE;
dcbSerialParams.fRtsControl = RTS_CONTROL_DISABLE;
dcbSerialParams.fBinary = TRUE;
result = SetCommState(h, &dcbSerialParams);
if (!result) {
return INVALID_HANDLE;
}
timeouts.ReadIntervalTimeout = 50; // in milliseconds
timeouts.ReadTotalTimeoutConstant = 50; // in milliseconds
timeouts.ReadIntervalTimeout = 30; // in milliseconds
timeouts.ReadTotalTimeoutConstant = 30; // in milliseconds
timeouts.ReadTotalTimeoutMultiplier = 10; // in milliseconds
timeouts.WriteTotalTimeoutConstant = 50; // in milliseconds
timeouts.WriteTotalTimeoutMultiplier = 10; // in milliseconds
@ -57,6 +65,8 @@ static inline SerialDeviceHandle serialDeviceOpen(char* deviceName) {
if (!result) {
return INVALID_HANDLE;
}
//ensure no leftover bytes exist on the serial line
result = PurgeComm(h, PURGE_RXCLEAR | PURGE_TXCLEAR | PURGE_RXABORT | PURGE_TXABORT);
return h;
} else {
@ -128,8 +138,8 @@ static inline SerialDeviceHandle serialDeviceOpen(char* deviceName) {
struct termios serial;
memset(&serial, 0, sizeof(struct termios));
cfsetispeed(&serial, B38400);
cfsetospeed(&serial, B38400);
cfsetispeed(&serial, B57600);
cfsetospeed(&serial, B57600);
serial.c_cflag |= CS8; // no parity, 1 stop bit
serial.c_cflag |= CREAD | CLOCAL;