// ============================================================================
// fXRESInitializeTargetForISSP()
// Implements the intialization vectors for the device.
// Returns:
// 0 if successful
// INIT_ERROR if timed out on handshake to the device.
// ============================================================================
signed char fXRESInitializeTargetForISSP(void)
{
// Configure the pins for initialization
SetSDATAHiZ();
SetSCLKStrong();
SCLKLow();
// Cycle reset and put the device in programming mode when it exits reset
AssertXRES();
DeassertXRES();
// !!! NOTE:
// The timing spec that requires that the first Init-Vector happen within
// 1 msec after the reset/power up. For this reason, it is not advisable
// to separate the above RESET_MODE or POWER_CYCLE_MODE code from the
// Init-Vector instructions below. Doing so could introduce excess delay
// and cause the target device to exit ISSP Mode.
//PTJ: Send id_setup_1 instead of init1_v
//PTJ: both send CA Test Key and do a Calibrate1 SROM function
SendVector(id_setup_1, num_bits_id_setup_1);
if (fIsError = fDetectHiLoTransition()) {
// TX8SW_CPutString("\r\n fDetectHiLoTransition Error");
printk(KERN_INFO "\r\n fDetectHiLoTransition Error\n");
return (INIT_ERROR);
}
SendVector(wait_and_poll_end, num_bits_wait_and_poll_end);
// NOTE: DO NOT not wait for HiLo on SDATA after vector Init-3
// it does not occur (per spec).
return (PASS);
}
/* ============================================================================
// fXRESInitializeTargetForISSP()
// Implements the intialization vectors for the device.
// Returns:
// 0 if successful
// INIT_ERROR if timed out on handshake to the device.
============================================================================*/
signed char fXRESInitializeTargetForISSP(void)
{
/* Configure the pins for initialization */
SetSDATAHiZ();
SetSCLKStrong();
SCLKLow();
#ifdef ACTIVE_LOW_XRES
AssertXRES(); /* assert XRES before setting XRES pin to strong */
SetXRESStrong();
DeassertXRES();
/* Delay(XRES_CLK_DELAY); */
mdelay(1);
AssertXRES();
#else
/* Cycle reset and put the device in programming mode when it exits reset */
SetXRESStrong();
AssertXRES();
Delay(XRES_CLK_DELAY);
DeassertXRES();
#endif
/* !!! NOTE:
// The timing spec that requires that the first Init-Vector happen within
// 1 msec after the reset/power up. For this reason, it is not advisable
// to separate the above RESET_MODE or POWER_CYCLE_MODE code from the
// Init-Vector instructions below. Doing so could introduce excess delay
// and cause the target device to exit ISSP Mode.
*/
SendVector(id_setup_1, num_bits_id_setup_1);
fIsError = fDetectHiLoTransition();
if (fIsError)
return INIT_ERROR;
SendVector(wait_and_poll_end, num_bits_wait_and_poll_end);
/* NOTE: DO NOT not wait for HiLo on SDATA after vector Init-3
// it does not occur (per spec). */
return PASS;
}
// ============================================================================
// ReStartTarget()
// After programming, the target PSoC must be reset to take it out of
// programming mode. This routine performs a reset.
// ============================================================================
void ReStartTarget(void)
{
#ifdef RESET_MODE
// Assert XRES, then release, then disable XRES-Enable
AssertXRES();
Delay(XRES_CLK_DELAY);
DeassertXRES();
#else
// Set all pins to highZ to avoid back powering the PSoC through the GPIO
// protection diodes.
SetSCLKHiZ();
SetSDATAHiZ();
// Cycle power on the target to cause a reset
RemoveTargetVDD();
mdelay(300);
ApplyTargetVDD();
#endif
}
/* ============================================================================
// ReStartTarget()
// After programming, the target PSoC must be reset to take it out of
// programming mode. This routine performs a reset.
============================================================================*/
void ReStartTarget(void)
{
#ifdef RESET_MODE
/* Assert XRES, then release, then disable XRES-Enable */
AssertXRES();
udelay(XRES_CLK_DELAY);
DeassertXRES();
#else
/* Set all pins to highZ to avoid back powering the PSoC through the GPIO */
/* protection diodes. */
SetSCLKHiZ();
SetSDATAHiZ();
/* Cycle power on the target to cause a reset */
RemoveTargetVDD();
udelay(POWER_CYCLE_DELAY);
ApplyTargetVDD();
#endif
}
void ReStartTarget(void)
{
//int i;
#ifdef RESET_MODE
/* Assert XRES, then release, then disable XRES-Enable */
AssertXRES();
Delay(XRES_CLK_DELAY);
DeassertXRES();
#else
/* Set all pins to highZ to avoid back powering
the PSoC through the GPIO protection diodes.
*/
SetSCLKHiZ();
SetSDATAHiZ();
/* Cycle power on the target to cause a reset */
RemoveTargetVDD();
// jjlee for (i = 0; i < 100; i++)
Delay(50000);
ApplyTargetVDD();
#endif
}
/*============================================================================
fXRESInitializeTargetForISSP()
Implements the intialization vectors for the device.
Returns:
0 if successful
INIT_ERROR if timed out on handshake to the device.
============================================================================
*/
signed char fXRESInitializeTargetForISSP(void)
{
/*Configure the pins for initialization*/
SetSDATAHiZ();
SetSCLKStrong();
SCLKLow();
SetXRESStrong();
/* Cycle reset and put the device
in programming mode when it exits reset */
AssertXRES();
Delay(XRES_CLK_DELAY);
DeassertXRES();
/*
!!! NOTE:
The timing spec that requires that the first Init-Vector happen within
1 msec after the reset/power up. For this reason, it is not advisable
to separate the above RESET_MODE or POWER_CYCLE_MODE code from the
Init-Vector instructions below. Doing so could introduce excess delay
and cause the target device to exit ISSP Mode.
PTJ: Send id_setup_1 instead of init1_v
PTJ: both send CA Test Key and do a Calibrate1 SROM function
*/
SendVector(id_setup_1, num_bits_id_setup_1);
fIsError = fDetectHiLoTransition();
if (fIsError != 0)
return INIT_ERROR;
SendVector(wait_and_poll_end, num_bits_wait_and_poll_end);
/*
NOTE: DO NOT not wait for HiLo on SDATA after vector Init-3
it does not occur (per spec).
*/
return PASS;
}
