Posted on May 17, 2011 at 11:57Moderator,
Let me try to explain better what I’m doing (I’m using uPSD3212):
1.In the PSDsoft I configure Main PSD flash as Data and Second PSD flash as Program;
2.My memory map:
fs0 = 0~3FFF Ã PAG 0
fs1 = 4000~7FFF Ã PAG 0
fs2 = 8000~BFFF Ã PAG 0
fs3 = C000~FFFF Ã PAG 0
csboot0 = 0~1FFF
csboot1 = 2000~3FFF
3.In “Merge MCU/DCP Firmware with PSD� option a put Program_2 in the FS0 and Program_1 in the csboot0;
Program 1:
void main(void) {
[Initialize peripherals and variables]
printfLCD(''Start on Flash-2\n'');
//1a message delay_ms(100);
PSD8xx_reg.PAGE = 0;
PSD8xx_reg.VM = 0x8C; // Here the program
//should jump to FLASH 1
Vm= PSD8xx_reg.VM;
Page = PSD8xx_reg.PAGE;
printfLCD(''I'm on Flash-2\n'');
//2a message printfLCD(''Page= %x VM= %x\n'',Page,Vm;
//3a message delay_ms(100);
while (1) // Main demo loop
{ }
} // End main
Program 2:
void main(void) {
[Initialize peripherals and variables]
printfLCD(''Start on Flash-1\n'');
//4a message delay_ms(100);
PSD8xx_reg.PAGE = 0;
PSD8xx_reg.VM = 0x92; // Here the program should jump
// to FLASH 2
Vm= PSD8xx_reg.VM;
Page = PSD8xx_reg.PAGE;
printfLCD(''I'm on Flash-1\n'');
//5a message printfLCD(''Page= %x VM= %x\n'',Page,Vm);
//6a message delay_ms(100);
while (1) // Main demo loop
{ }
} // End main
The program 1 start ok , show the 1a message and after I execute the command “PSD8xx_reg.VM = 0x8C;� I have on my LCD the 5a message from program 2. I can jump from one flash to the other, but I can come back to the beginning of the program (Do you understand me ?).
When I force a reset, the VM register come back to the value that I programmed using PSDsoft and not to the value that a set with the command “PSD8xx_reg.VM = 0x8C;�. How can I change it definitely? How can I come back to the begging of my program after switching?
Thanks a lot
