If you look in the PSoC Creator/4.3/PSoC Creator/cybootloaderutils directory you will find the C source files that you need in order to create your own bootloader host.
In order to do this you need to be able to make and compile a c-program for your target host.
The library is easy to use.... basically you create and fill a structure of type
CyBtldr_CommunicationsDat
The members of this structure are
typedef struct
{
/* Function used to open the communications connection */
int (*OpenConnection)(void);
/* Function used to close the communications connection */
int (*CloseConnection)(void);
/* Function used to read data over the communications connection */
int (*ReadData)(unsigned char*, int);
/* Function used to write data over the communications connection */
int (*WriteData)(unsigned char*, int);
/* Value used to specify the maximum number of bytes that can be trasfered at a time */
unsigned int MaxTransferSize;
} CyBtldr_CommunicationsData;
So you need to provide function pointers to:
open the serial port
close the serial port
read data from the device
write data to the device
And a limit of the maximum transfer size.
I did an I2C implementation for the raspberry pi... here is some cuts of the code.
To use this you do something like this:
printf("Starting Setup\n");
//setup reset pin
if(!bcm2835_init())
{
printf("init failed\n");
exit(0);
}
bcm2835_gpio_fsel(P4RESET, BCM2835_GPIO_FSEL_OUTP);
bcm2835_gpio_clr(P4RESET);
cd.OpenConnection = &CYPIOpenConnection;
cd.CloseConnection = &CYPICloseConnection;
cd.ReadData = &CYPIReadData;
cd.WriteData = &CYPIWriteData;
// cd.MaxTransferSize = 100;
cd.MaxTransferSize = 20;
printf("Ending Setup\n");
return CYRET_SUCCESS;
CyBtldr_Action action = PROGRAM;
rval = CyBtldr_RunAction(action, "p4arduino-creek.cyacd", &cd , &PUpdate);
Alan
