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Give time to initialize the FPGA when loaded from JTAG

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This commit is contained in:
Gyorgy Szombathelyi
2022-11-22 19:54:20 +01:00
parent 2404a7c950
commit 01e05d6b08
1 changed files with 12 additions and 12 deletions
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24
fpga.c
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@@ -907,6 +907,7 @@ unsigned char GetFPGAStatus(void)
void fpga_init(const char *name) {
unsigned long time = GetRTTC();
int loaded_from_usb = USB_LOAD_VAR;
unsigned char ct;
// load the global MISTCFG.INI here
// loading between the FPGA init and detect_core_type breaks with some SD-Cards. Reason unknown.
@@ -917,7 +918,6 @@ void fpga_init(const char *name) {
USB_LOAD_VAR = 0;
if((loaded_from_usb != USB_LOAD_VALUE) && !user_io_dip_switch1()) {
unsigned char ct;
if (ConfigureFpga(name)) {
time = GetRTTC() - time;
@@ -926,19 +926,19 @@ void fpga_init(const char *name) {
iprintf("FPGA configuration failed\r");
FatalError(8); // 3
}
// wait max 100 msec for a valid core type
time = GetTimer(100);
do {
EnableIO();
ct = SPI(0xff);
DisableIO();
SPI(0xff); // for old minimig core
} while( ((ct == 0) || (ct == 0xff)) && !CheckTimer(time));
iprintf("ident = %x\n", ct);
}
// wait max 100 msec for a valid core type
time = GetTimer(100);
do {
EnableIO();
ct = SPI(0xff);
DisableIO();
SPI(0xff); // for old minimig core
} while( ((ct == 0) || (ct == 0xff)) && !CheckTimer(time));
iprintf("ident = %x\n", ct);
user_io_detect_core_type();
user_io_init_core();
mist_ini_parse();