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main.cpp
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#include <stdio.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <iostream>
#include <fcntl.h> // File control definitions
#include <errno.h> // Error number definitions
#include <termios.h> // POSIX terminal control definitions
#include <string>
#include <string.h>
#include <fstream>
#include <sys/ioctl.h>
#include <stdint.h>
#include <vector>
#include "misc.h"
#include "HexUtils.h"
using namespace std;
string version = "0.2";
enum BLCommand {
BLCommand_Start = 's',
BLCommand_GetDevID = 'i',
BLCommand_GetBLVersion = 'v',
BLCommand_SetRWAddress = 'a',
BLCommand_Write = 'w',
BLCommand_Read = 'r',
BLCommand_SetUsrMainAddress = 'm',
BLCommand_ErasePage = 'e',
BLCommand_Exit = 'x',
BLCommand_Any = '*',
BLCommand_Unknown = '?',
BLCommand_Timeout = '$',
BLCommand_Unexpected = '!',
};
string blDevIdToString[]
{
"Nordic nRF24LU1(+)",
"Nordic nRF24LE1-24",
"Nordic nRF24LE1-32",
"Nordic nRF24LE1-48"
};
enum ResetPin
{
DISABLED,
DTR,
RTS,
CTS,
};
enum Command
{
C_CHECK,
C_FLASH,
};
enum BLCommandReturnType
{
BLCommandReturnType_OK,
BLCommandReturnType_BadCharacter,
BLCommandReturnType_Timeout,
BLCommandReturnType_SerialPortFailure,
};
string hexfile = "";
string port = "/dev/ttyUSB0";
speed_t baudrate = B38400;
ResetPin resetpin = DTR;
ResetPin blenabled = DISABLED;
Command command = C_CHECK;
void usage() {
cout << "Usage : nrf24lx1Flash -f [hexfile] -p port -b baudrate -r reset -b BL_enabled -c command\n";
cout << "-f [hexfile], path to hex file\n";
cout << "-p port, port device\n\t-default /dev/ttyUSB0 \n";
cout << "-b baudrate, UART speed\n\t-default 38400 \n";
cout << "-r reset, reset pin DTR, RTS or CTS\n\t-default DTR\n";
cout << "-bl BL_enabled, DISABLED or DTR or RTS\n\t-default DISABLED\n";
cout << "-c command, CHECK, FLASH\n\t-default CHECK\n";
cout << "\nVersion " << version << "\n";
}
bool processCommandLine(int argc, char **argv) {
int i;
for(i=1;i<argc;i++) {
if(strcmp(argv[i],"-f")==0) {
if( i + 1 == argc ) {
cout << "Error: hex file not specified.\n";
usage();
} else {
hexfile = argv[i+1];
}
}
if(strcmp(argv[i],"-p")==0) {
if( i + 1 == argc ) {
cout << "Error: port not specified.\n";
} else {
port = argv[i+1];
}
}
if(strcmp(argv[i],"-b")==0) {
if( i + 1 == argc ) {
cout << "Error: baudrate not specified.\n";
} else {
if(strcmp(argv[i+1],"50")==0) { baudrate = B50; continue;};
if(strcmp(argv[i+1],"75")==0) { baudrate = B75; continue;};
if(strcmp(argv[i+1],"110")==0) { baudrate = B110; continue;};
if(strcmp(argv[i+1],"134")==0) { baudrate = B134; continue;};
if(strcmp(argv[i+1],"150")==0) { baudrate = B150; continue;};
if(strcmp(argv[i+1],"200")==0) { baudrate = B200; continue;};
if(strcmp(argv[i+1],"300")==0) { baudrate = B300; continue;};
if(strcmp(argv[i+1],"600")==0) { baudrate = B600; continue;};
if(strcmp(argv[i+1],"1200")==0) { baudrate = B1200; continue;};
if(strcmp(argv[i+1],"1800")==0) { baudrate = B1800; continue;};
if(strcmp(argv[i+1],"2400")==0) { baudrate = B2400; continue;};
if(strcmp(argv[i+1],"4800")==0) { baudrate = B4800; continue;};
if(strcmp(argv[i+1],"9600")==0) { baudrate = B9600; continue;};
if(strcmp(argv[i+1],"19200")==0) { baudrate = B19200; continue;};
if(strcmp(argv[i+1],"38400")==0) { baudrate = B38400; continue;};
if(strcmp(argv[i+1],"57600")==0) { baudrate = B57600; continue;};
if(strcmp(argv[i+1],"115200")==0) { baudrate = B115200; continue;};
if(strcmp(argv[i+1],"230400")==0) { baudrate = B230400; continue;};
if(strcmp(argv[i+1],"460800")==0) { baudrate = B460800; continue;};
if(strcmp(argv[i+1],"500000")==0) { baudrate = B500000; continue;};
if(strcmp(argv[i+1],"576000")==0) { baudrate = B576000; continue;};
if(strcmp(argv[i+1],"921600")==0) { baudrate = B921600; continue;};
if(strcmp(argv[i+1],"1000000")==0) { baudrate = B1000000; continue;};
if(strcmp(argv[i+1],"1152000")==0) { baudrate = B1152000; continue;};
if(strcmp(argv[i+1],"1500000")==0) { baudrate = B1500000; continue;};
if(strcmp(argv[i+1],"2000000")==0) { baudrate = B2000000; continue;};
if(strcmp(argv[i+1],"2500000")==0) { baudrate = B2500000; continue;};
if(strcmp(argv[i+1],"3000000")==0) { baudrate = B3000000; continue;};
if(strcmp(argv[i+1],"3500000")==0) { baudrate = B3500000; continue;};
if(strcmp(argv[i+1],"4000000")==0) { baudrate = B4000000; continue;};
cout << "Error: invalid baudrate " << argv[i+1] << "\n";
return false;
}
}
if(strcmp(argv[i],"-r")==0) {
if( i + 1 == argc ) {
cout << "Error: reset not specified.\n";
return false;
} else {
if(strcmp(argv[i+1],"DTR")==0) { resetpin = DTR; continue; };
if(strcmp(argv[i+1],"RTS")==0) { resetpin = RTS; continue; };
if(strcmp(argv[i+1],"CTS")==0) { resetpin = CTS; continue; };
cout << "Error: invalid reset specified " << argv[i+1] << "\n";
return false;
}
}
if(strcmp(argv[i],"-bl")==0) {
if( i + 1 == argc ) {
cout << "Error: reset not specified.\n";
return false;
} else {
if(strcmp(argv[i+1],"DISABLED")==0) { blenabled = DISABLED; continue; };
if(strcmp(argv[i+1],"DTR")==0) { blenabled = DTR; continue; };
if(strcmp(argv[i+1],"RTS")==0) { blenabled = RTS; continue; };
cout << "Error: invalid blenabled specified " << argv[i+1] << "\n";
return false;
}
}
if(strcmp(argv[i],"-c")==0) {
if( i + 1 == argc ) {
cout << "Error: command not specified.\n";
return false;
} else {
if(strcmp(argv[i+1],"CHECK")==0) { command = C_CHECK; continue; };
if(strcmp(argv[i+1],"FLASH")==0) { command = C_FLASH; continue; };
cout << "Error: invalid command specified " << argv[i+1] << "\n";
return false;
}
}
if(strcmp(argv[i],"-h")==0 | strcmp(argv[i],"--help")==0 ) {
usage();
exit(0);
}
}
if(hexfile.compare("")==0 && command == C_FLASH) {
cout<< "Error: hexfile not specified\n";
return 0;
}
return true;
}
int
set_interface_attribs (int fd, int speed, int parity)
{
struct termios tty;
memset (&tty, 0, sizeof tty);
if (tcgetattr (fd, &tty) != 0)
{
cout << "error %d from tcgetattr" << errno;
return -1;
}
cfsetospeed (&tty, speed);
cfsetispeed (&tty, speed);
tty.c_cflag = (tty.c_cflag & ~CSIZE) | CS8; // 8-bit chars
// disable IGNBRK for mismatched speed tests; otherwise receive break
// as \000 chars
tty.c_iflag &= ~IGNBRK; // disable break processing
tty.c_lflag = 0; // no signaling chars, no echo,
// no canonical processing
tty.c_oflag = 0; // no remapping, no delays
tty.c_cc[VMIN] = 0; // read doesn't block
tty.c_cc[VTIME] = 5; // 0.5 seconds read timeout
tty.c_iflag &= ~(IXON | IXOFF | IXANY); // shut off xon/xoff ctrl
tty.c_cflag |= (CLOCAL | CREAD);// ignore modem controls,
// enable reading
tty.c_cflag &= ~(PARENB | PARODD); // shut off parity
tty.c_cflag |= parity;
tty.c_cflag &= ~CSTOPB;
tty.c_cflag &= ~CRTSCTS;
if (tcsetattr (fd, TCSANOW, &tty) != 0)
{
cout << "error from tcsetattr:" << errno;
return -1;
}
return 0;
}
void
set_blocking (int fd, int should_block)
{
struct termios tty;
memset (&tty, 0, sizeof tty);
if (tcgetattr (fd, &tty) != 0)
{
cout << "error from tggetattr: " << errno;
return;
}
tty.c_cc[VMIN] = should_block ? 1 : 0;
tty.c_cc[VTIME] = 5; // 0.5 seconds read timeout
if (tcsetattr (fd, TCSANOW, &tty) != 0)
cout << "error setting term attributes:"<<errno;
}
int progSerPort;
bool OpenSerialPort(speed_t baudRate)
{
string s = port;
strreplace(s,"/dev/", "");
string lockFileName = "/tmp/LCK.." + s;
try
{
ifstream *lockFile = new ifstream(lockFileName.c_str());
}
catch (...)
{
cout << "Error: Lock file " + lockFileName + " exists! It is likely that another serial terminal has this port open!\r\n";
return false;
}
progSerPort = open(port.c_str(),O_RDWR | O_NOCTTY | O_SYNC );
set_interface_attribs (progSerPort, B38400, 0);
set_blocking (progSerPort, 0);
return true;
}
void RtsSet(int fd, bool value) {
int sercmd = TIOCM_RTS;
if(value) {
ioctl(fd, TIOCMBIS, &sercmd); // Set the RTS pin.
} else {
ioctl(fd, TIOCMBIC, &sercmd); // Reset the RTS pin.
}
}
void DtrSet(int fd, bool value) {
int sercmd = TIOCM_DTR;
if(value) {
ioctl(fd, TIOCMBIS, &sercmd); // Set the DTR pin.
} else {
ioctl(fd, TIOCMBIC, &sercmd); // Reset the DTR pin.
}
}
void CtsSet(int fd, bool value) {
int sercmd = TIOCM_CTS;
if(value) {
ioctl(fd, TIOCMBIS, &sercmd); // Set the CTS pin.
} else {
ioctl(fd, TIOCMBIC, &sercmd); // Reset the CTS pin.
}
}
void ResetDevice()
{
//Enable the reset signal, which will put the chip in reset (the reset signal must be either RTS or DTR)
if (resetpin == RTS)
{
RtsSet(progSerPort,true);
}
else if(resetpin = CTS)
{
CtsSet(progSerPort,true);
}
else
{
DtrSet(progSerPort,true);
}
//Wait 100 ms for the UART driver to have time to process any serial data the chip was sending prior to reset
sleep_ms(100);
//If the bootloader enable signal is enabled (set to RTS or DTR), then enable the signal here before we come out of reset
if (blenabled == RTS)
{
RtsSet(progSerPort,true);
sleep_ms(1);
}
else if (blenabled == DTR)
{
DtrSet(progSerPort,true);
//Sleep for 1 ms to give the enable pin plenty of time to activate
sleep_ms(1);
}
//Disable the reset signal, which returns the device to the normal state
if (resetpin == RTS)
{
RtsSet(progSerPort,false);
}
else if(resetpin = CTS)
{
CtsSet(progSerPort,false);
}
else
{
DtrSet(progSerPort,false);
}
//Sleep for 1 ms to give the device time to power up
sleep_ms(1);
//If the bootloader enable signal is enabled (set to RTS or DTR), then disable the signal now that the device is powered up
if (blenabled == RTS)
{
RtsSet(progSerPort,false);
//Sleep for 1 ms to give the enable pin plenty of time to activate
sleep_ms(1);
}
else if (blenabled == DTR)
{
DtrSet(progSerPort,false);
//Sleep for 1 ms to give the enable pin plenty of time to activate
sleep_ms(1);
}
}
BLCommandReturnType WriteSerialByte(unsigned char buffer)
{
try
{
write(progSerPort,&buffer,1);
fsync(progSerPort);
sleep_ms(1);
return BLCommandReturnType_OK;
}
catch(...)
{
return BLCommandReturnType_SerialPortFailure;
}
}
BLCommandReturnType ReadSerialDataByte(unsigned char *buffer)
{
fd_set set;
struct timeval timeout;
int rv;
FD_ZERO(&set); /* clear the set */
FD_SET(progSerPort, &set); /* add our file descriptor to the set */
timeout.tv_sec = 0;
timeout.tv_usec = 2000000;
rv = select(progSerPort + 1, &set, NULL, NULL, &timeout);
if(rv == -1)
return BLCommandReturnType_SerialPortFailure; /* an error accured */
else if(rv == 0)
return BLCommandReturnType_Timeout; /* a timeout occured */
else
read( progSerPort, (void *)buffer,1 ); /* there was data to read */
return BLCommandReturnType_OK;
}
BLCommandReturnType ReadSerialCommandByte(BLCommand command)
{
unsigned char buffer = 0;
BLCommandReturnType blCommandReturnVal;
blCommandReturnVal = ReadSerialDataByte(&buffer);
if (blCommandReturnVal == BLCommandReturnType_OK)
{
if ((command == BLCommand_Any) || (buffer == (char)command))
{
return BLCommandReturnType_OK;
}
else
{
return BLCommandReturnType_BadCharacter;
}
}
else
{
return blCommandReturnVal;
}
}
BLCommandReturnType ExecuteCommandStartBootloader()
{
if (!OpenSerialPort(baudrate))
{
return BLCommandReturnType_SerialPortFailure;
}
//reset the chip
ResetDevice();
//send the start byte
if (WriteSerialByte((unsigned char)BLCommand_Start) != BLCommandReturnType_OK)
{
return BLCommandReturnType_SerialPortFailure;
}
//wait for the return character and return it
return ReadSerialCommandByte(BLCommand_Start);
}
BLCommandReturnType ExecuteCommandGetDevID(uint16_t *buffer)
{
unsigned char tempByte = 0;
if (WriteSerialByte((unsigned char )BLCommand_GetDevID) != BLCommandReturnType_OK)
{
return BLCommandReturnType_SerialPortFailure;
}
if (ReadSerialDataByte(&tempByte) != BLCommandReturnType_OK)
{
return BLCommandReturnType_Timeout;
}
*buffer = tempByte;
if (ReadSerialDataByte(&tempByte) != BLCommandReturnType_OK)
{
return BLCommandReturnType_Timeout;
}
(*buffer) += ((uint16_t)tempByte) << 8;
return ReadSerialCommandByte(BLCommand_GetDevID);
}
BLCommandReturnType ExecuteCommandGetBLVersion(unsigned char *buffer)
{
if (WriteSerialByte((unsigned char)BLCommand_GetBLVersion) != BLCommandReturnType_OK)
{
return BLCommandReturnType_SerialPortFailure;
}
if (ReadSerialDataByte(buffer) != BLCommandReturnType_OK)
{
return BLCommandReturnType_Timeout;
}
return ReadSerialCommandByte(BLCommand_GetBLVersion);
}
BLCommandReturnType ExecuteCommandExitBootloader()
{
BLCommandReturnType retVal = BLCommandReturnType_Timeout;
if (WriteSerialByte((unsigned char)BLCommand_Exit) != BLCommandReturnType_OK)
{
return BLCommandReturnType_SerialPortFailure;
}
retVal = ReadSerialCommandByte(BLCommand_Exit);
return retVal;
}
string ConvertBLDevIDToString(uint16_t blDevId)
{
string retVal;
if(blDevId >= sizeof(&blDevIdToString))
{
retVal = "[Invalid Device ID]";
}
else
{
retVal = blDevIdToString[blDevId];
}
retVal += " (ID: " + ToString(blDevId) + ")\n";
return retVal;
}
bool CheckUC()
{
string s = port;
BLCommandReturnType blCommandReturnVal;
if (resetpin == blenabled)
{
cout << "Reset and bootloader enable pins cannot be the same!\n";
return false;
}
//begin start bootloader
blCommandReturnVal = ExecuteCommandStartBootloader();
if (blCommandReturnVal == BLCommandReturnType_SerialPortFailure)
{
cout << "Error: Could not open COM port!\n";
return false;
}
else if (blCommandReturnVal != BLCommandReturnType_OK)
{
cout << "Error: Device not connected!\n";
return false;
}
//end start bootloader
//begin device id check
uint16_t devId = 0;
blCommandReturnVal = ExecuteCommandGetDevID(&devId);
if (blCommandReturnVal != BLCommandReturnType_OK)
{
cout << "Lost communications with device!\n";
return false;
}
//end device id check
//begin bootloader version check
unsigned char blVersion = 0;
blCommandReturnVal = ExecuteCommandGetBLVersion(&blVersion);
if (blCommandReturnVal != BLCommandReturnType_OK)
{
cout << "Lost communications with device!\n";
return false;
}
//end device id check
//begin exit bootloader only
blCommandReturnVal = ExecuteCommandExitBootloader();
if (blCommandReturnVal != BLCommandReturnType_OK)
{
cout<< "Lost communications with device!\n";
return false;
}
//end exit bootloader
//If we have made it this far, then everything went to plan, so update the microcontroller type and bootloader version textboxes
cout << ConvertBLDevIDToString(devId);
cout << "Device found!\n";
return true;
}
BLCommandReturnType ExecuteCommandErasePage(uint8_t pageNum)
{
if (WriteSerialByte((uint8_t)BLCommand_ErasePage) != BLCommandReturnType_OK)
{
return BLCommandReturnType_SerialPortFailure;
}
if (WriteSerialByte(pageNum) != BLCommandReturnType_OK)
{
return BLCommandReturnType_SerialPortFailure;
}
return ReadSerialCommandByte(BLCommand_ErasePage);
}
BLCommandReturnType ExecuteCommandSetRWAddress(uint16_t address)
{
if (WriteSerialByte((uint8_t)BLCommand_SetRWAddress) != BLCommandReturnType_OK)
{
return BLCommandReturnType_SerialPortFailure;
}
if (WriteSerialByte((uint8_t)address & 0xFF) != BLCommandReturnType_OK)
{
return BLCommandReturnType_SerialPortFailure;
}
if (WriteSerialByte((uint8_t)(address >> 8)) != BLCommandReturnType_OK)
{
return BLCommandReturnType_SerialPortFailure;
}
return ReadSerialCommandByte(BLCommand_SetRWAddress);
}
BLCommandReturnType ExecuteCommandWrite(uint8_t buffer[], uint16_t startIndex, uint16_t len)
{
uint numWritten = 0;
while(numWritten < len)
{
uint numToWrite;
//The write operation only supports writing up to 256 bytes per write
if ((len - numWritten) > 256)
{
numToWrite = 256;
}
else
{
numToWrite = len - numWritten;
}
//Send write command
if (WriteSerialByte((uint8_t)BLCommand_Write) != BLCommandReturnType_OK)
{
return BLCommandReturnType_SerialPortFailure;
}
//Send number of bytes to be written (0 here indicates we want to write 256 bytes, so casting numToWrite to a byte does the trick of getting rid of the MSb)
if (WriteSerialByte((uint8_t)numToWrite) != BLCommandReturnType_OK)
{
return BLCommandReturnType_SerialPortFailure;
}
//Send the bytes to be written one by one
for(unsigned int x = 0; x < numToWrite; x++)
{
if (WriteSerialByte(buffer[startIndex + numWritten]) != BLCommandReturnType_OK)
{
return BLCommandReturnType_SerialPortFailure;
}
numWritten++;
}
if (ReadSerialCommandByte(BLCommand_Write) != BLCommandReturnType_OK)
{
return BLCommandReturnType_Timeout;
}
}
return BLCommandReturnType_OK;
}
BLCommandReturnType ExecuteCommandSetUsrMainAddress(uint16_t address)
{
if (WriteSerialByte((uint8_t)BLCommand_SetUsrMainAddress) != BLCommandReturnType_OK)
{
return BLCommandReturnType_SerialPortFailure;
}
if (WriteSerialByte((uint8_t)address & 0xFF) != BLCommandReturnType_OK)
{
return BLCommandReturnType_SerialPortFailure;
}
if (WriteSerialByte((uint8_t)address >> 8) != BLCommandReturnType_OK)
{
return BLCommandReturnType_SerialPortFailure;
}
return ReadSerialCommandByte(BLCommand_SetUsrMainAddress);
}
BLCommandReturnType ExecuteCommandRead(uint8_t buffer[], uint16_t startIndex, uint16_t len)
{
unsigned int numRead = 0;
while(numRead < len)
{
unsigned int numToRead;
//The read operation only supports reading up to 256 bytes per read
if ((len - numRead) > 256)
{
numToRead = 256;
}
else
{
numToRead = len - numRead;
}
//Send read command
if (WriteSerialByte((uint8_t)BLCommand_Read) != BLCommandReturnType_OK)
{
return BLCommandReturnType_SerialPortFailure;
}
//Send number of bytes to be read (0 here indicates we want to read 256 bytes, so casting numToRead to a byte does the trick of getting rid of the MSb)
if (WriteSerialByte((uint8_t)numToRead) != BLCommandReturnType_OK)
{
return BLCommandReturnType_SerialPortFailure;
}
//Read in the bytes from the micro one by one
for(unsigned int x = 0; x < numToRead; x++)
{
if (ReadSerialDataByte(&buffer[startIndex + numRead]) != BLCommandReturnType_OK)
{
return BLCommandReturnType_SerialPortFailure;
}
numRead++;
}
if (ReadSerialCommandByte(BLCommand_Read) != BLCommandReturnType_OK)
{
return BLCommandReturnType_Timeout;
}
}
return BLCommandReturnType_OK;
}
bool ProgramUC()
{
string debugInfo = "";
vector<HexRecord> *hexRecords;
BLCommandReturnType blCommandReturnVal;
uint8_t readData[512] ;
bool pageErased[31];
bool dataInPage[31];
uint8_t ucFlash [0x4000];
uint8_t jumpInstruction[] = {0x02, 0x3E, 0x00};
ucFlash[0] = jumpInstruction[0];
ucFlash[1] = jumpInstruction[1];
ucFlash[2] = jumpInstruction[2];
#if DEBUG_MSG_BOX_ENABLED
outputString = "";
#endif
cout << "Initiating program/verify sequence...\r\n";
if (resetpin == blenabled)
{
cout << "Reset and bootloader enable pins cannot be the same!";
return false;
}
cout << "Parsing hex file...\r\n";
//begin parse hex file
hexRecords = HexUtils::ParseHexFile(hexfile, debugInfo);
//If hexRecords is null, then the file could not be found
if (hexRecords == NULL)
{
cout << "Could not open hex file!";
return false;
}
for (unsigned int x = 0; x < sizeof(pageErased); x++)
{
pageErased[x] = false;
dataInPage[x] = false;
}
for (unsigned int x = 0; x < sizeof(ucFlash); x++)
{
ucFlash[x] = 0xFF;
}
//Loop through each of the individual hex records to build the complete flash image
for (unsigned int x = 0; x < hexRecords->size(); x++)
{
HexRecord curHexRecord = (HexRecord)hexRecords->at((int)x);
//If an address is found that is in the bootloader's address space, then throw an error
if ((curHexRecord.address + curHexRecord.len) >= 0x3E00)
{
cout << "Attempting to program address in bootloader's address space (0x3E00 through 0x3FFF)!";
return false;
}
//Loop through the data in the hex record to build the flash image
for (unsigned int y = 0; y < curHexRecord.len; y++)
{
uint8_t curPage = (uint8_t)((curHexRecord.address + y) / 512);
uint8_t data = curHexRecord.data[y];
int addr = curHexRecord.address;
ucFlash[ addr + y] = data;
if (!dataInPage[curPage] && (ucFlash[curHexRecord.address + y] != 0xFF))
dataInPage[curPage] = true;
}
}
//end parse hex file
cout << "Parsing hex file complete!\r\n";
cout << "Programming device flash...\r\n";
//begin start bootloader
blCommandReturnVal = ExecuteCommandStartBootloader();
if (blCommandReturnVal == BLCommandReturnType_SerialPortFailure)
{
cout << "Could not open COM port!";
return false;
}
else if (blCommandReturnVal != BLCommandReturnType_OK)
{
cout << "Device not connected!\n";
return false;
}
//end start bootloader
//begin device id check
uint16_t devId = 0;
blCommandReturnVal = ExecuteCommandGetDevID(&devId);
if (blCommandReturnVal != BLCommandReturnType_OK)
{
cout << "Lost communications with device!";
return false;
}
//end device id check
//begin bootloader version check
uint8_t blVersion = 0;
blCommandReturnVal = ExecuteCommandGetBLVersion(&blVersion);
if (blCommandReturnVal != BLCommandReturnType_OK)
{
cout << "Lost communications with device!";
return false;
}
//end device id check
cout << ConvertBLDevIDToString(devId);
//begin write hex file data
for (uint8_t curPage = 0; curPage < 31; curPage++)
{
unsigned int writeStartAddress = 0;
unsigned int writeEndAddress = 0;
unsigned int curPageStartAddress = (unsigned int )curPage * 512;
unsigned int curPageEndAddress = curPageStartAddress + 512 - 1;
unsigned int curRWAddress = 0;
//If there is data in the page, then we will do some writing
if (dataInPage[curPage])
{
//Page 0 is a special case because it contains the jump to bootloader code
if (curPage == 0)
{
//Erase page 0 here
if (ExecuteCommandErasePage(0) != BLCommandReturnType_OK)
{
cout << "Lost communications with device!";
return false;
}
//Mark page erased
pageErased[0] = true;
//Set the RW address so we can write the jump instruction
if (ExecuteCommandSetRWAddress(0) != BLCommandReturnType_OK)
{
cout << "Lost communications with device!";
return false;
}
//Update our shadow copy of the chip's RW address
curRWAddress = 0;
//Write the jump instruction
if (ExecuteCommandWrite(jumpInstruction, 0, 3) != BLCommandReturnType_OK)
{
cout << "Lost communications with device!";
return false;
}
//Update our shadow copy of the chip's RW address
curRWAddress += 3;
//Set the user main address that lived in the jump instruction of the user's hex file (bytes 1 (MSB) and 2 (LSB))
if (ExecuteCommandSetUsrMainAddress((uint16_t)(ucFlash[1] << 8) + ucFlash[2]) != BLCommandReturnType_OK)
{
cout << "Lost communications with device!";
return false;
}
//Since we've already written the first 3 bytes in the page, update the start address for the rest of the page accordingly
writeStartAddress = 3;
}
else
{
//Erase the page if it hasn't been erased
if (!pageErased[curPage])
{
if (ExecuteCommandErasePage(curPage) != BLCommandReturnType_OK)
{
cout << "Lost communications with device!";
return false;
}
pageErased[curPage] = true;
}
//We haven't written any data, so the start address is just the first address of the page
writeStartAddress = curPageStartAddress;
}
//Loop through this page
while (writeStartAddress <= curPageEndAddress)
{
//Check to see if the current byte is 0xFF or not (FLASH erases to 0xFF, so we do not have to write that value)
if (ucFlash[writeStartAddress] != 0xFF)
{
uint endFFhCount = 0; //Counter for number of 0xFF values seen after the last non-0xFF value
//We have found a non-0xFF value, so now we will try to find where we will end this write operation
writeEndAddress = writeStartAddress;
//curViewingAddress is the address we're inspecting to see if we want to write the value or not
uint curViewingAddress = writeEndAddress + 1;
//Check if curViewingAddress is within the current page boundary
while (curViewingAddress <= curPageEndAddress)
{
//We're in the current page boundary, so check if the next value in the flash image is non-0xFF
if (ucFlash[writeEndAddress + 1] != 0xFF)
{
//The next value is non-0xFF, so set writeEndAddress to curViewingAddress and zero out endFFhCount
writeEndAddress = curViewingAddress;
endFFhCount = 0;
}
else
{
//The next value is 0xFF, so increment endFFhCount
endFFhCount++;
//We have to write at least 8 0xFF values before it makes sense to break a single write into two
if (endFFhCount >= 8)
{
//We are on our 8th 0xFF, so we will break this write
break;
}
}
//curViewingAddress is always one location ahead of writeEndAddress plus endFFhCount
curViewingAddress = writeEndAddress + endFFhCount + 1;
}
//Update the chip's RW address if it isn't equal to writeStartAddress