/* AppWarmStart():
* This function is provided to allow the application to partially
* restart the monitor. It supports the situation where an application
* run but the monitor has not already been initialized. This would be
* the case if some type of debugger (JTAG or BDM probably) was attached
* to the target and it was used to download and run the application.
* If this type of debug connection does not support the ability to run
* after the monitor runs, then the application must be able to somehow
* get the monitor initialized without having it go through a complete
* warmstart.
* This will only run through the stack space provided by the application.
*/
void
AppWarmStart(ulong mask)
{
/* First initialize monitor bss space (skipping over MonStack[]): */
if(mask & WARMSTART_BSSINIT) {
umonBssInit();
}
StateOfMonitor = INITIALIZE;
/* Initialize some of the real fundamental stuff regardless of
* the incoming mask.
*/
init0();
/* Subset of init1(): */
if(mask & WARMSTART_IOINIT) {
initCPUio();
InitRemoteIO();
if(ConsoleBaudRate == 0) {
ConsoleBaudRate = DEFAULT_BAUD_RATE;
}
devInit(ConsoleBaudRate);
}
init2();
_init3(mask);
}
/* init1():
* This is the first level of initialization (aside from the most fundamental
* stuff that must be done in reset.s) that is done after the system resets.
*/
void
init1(void)
{
initCPUio(); /* Configure all chip-selects, parallel IO
* direction registers, etc... This may have
* been done already in reset.s
*/
vinit(); /* Initialize the CPU's vector table. */
InitRemoteIO(); /* Initialize all application-settable IO functions */
if(ConsoleBaudRate == 0) {
ConsoleBaudRate = DEFAULT_BAUD_RATE;
}
devInit(ConsoleBaudRate);
}
/* InitUART():
Fed the baudrate.
*/
int
Init403UART(int baud)
{
int divisor, brdl, brdh;
if (baud == 0)
baud = ConsoleBaudRate;
/* Keep track of the last baud rate, so that it can be used if the */
/* incoming baudrate is NULL. */
ConsoleBaudRate = baud;
/* Compute Baud Rate Divisor value */
divisor = (MON_CPU_CLOCK/(16*baud)) - 1;
brdl = divisor & 0xff;
brdh = divisor / 0x100;
/* Initialize 403GCX UART: */
CPU_SPU_SPRC = 0; /* Disable xmitter and receiver */
CPU_SPU_SPTC = 0;
CPU_SPU_SPLS = 0xf8; /* Clear bits in line status reg */
CPU_SPU_BRDL = brdl; /* Set baud rate divisor lsb */
CPU_SPU_BRDH = brdh; /* Set baud rate divisor msb */
CPU_SPU_SPCTL = 0x38; /* Set DTR & RTS, 8 bits, no parity */
CPU_SPU_SPRC = 0x80; /* Enable receiver */
CPU_SPU_SPTC = 0x80; /* Enable transmitter */
CPU_SPU_SPHS = 0xc0; /* Clear bits in handshake reg */
InitRemoteIO();
return(0);
}
