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pc-stlinkv2: Try first to reset device if we read a strange version number.

This commit is contained in:
Uwe Bonnes 2019-08-21 12:50:29 +02:00
parent 44f471db53
commit 5d59338de5
1 changed files with 17 additions and 4 deletions
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21
src/platforms/pc-stlinkv2/stlinkv2.c
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@ -800,10 +800,23 @@ void stlink_init(int argc, char **argv)
Stlink.req_trans = libusb_alloc_transfer(0); Stlink.req_trans = libusb_alloc_transfer(0);
Stlink.rep_trans = libusb_alloc_transfer(0); Stlink.rep_trans = libusb_alloc_transfer(0);
stlink_version(); stlink_version();
if (Stlink.ver_stlink < 3 && Stlink.ver_jtag < 32) { if ((Stlink.ver_stlink < 3 && Stlink.ver_jtag < 32) ||
DEBUG("Please update Firmware\n"); (Stlink.ver_stlink == 3 && Stlink.ver_jtag < 3)) {
goto error_1; /* Maybe the adapter is in some strange state. Try to reset */
} else if (Stlink.ver_stlink == 3 && Stlink.ver_jtag < 3) { int result = libusb_reset_device(Stlink.handle);
DEBUG("Trying reset\n");
if (result == LIBUSB_ERROR_BUSY) { /* Try again */
platform_delay(50);
result = libusb_reset_device(Stlink.handle);
}
if (result != LIBUSB_SUCCESS) {
DEBUG("libusb_reset_device failed\n");
goto error_1;
}
stlink_version();
}
if ((Stlink.ver_stlink < 3 && Stlink.ver_jtag < 32) ||
(Stlink.ver_stlink == 3 && Stlink.ver_jtag < 3)) {
DEBUG("Please update Firmware\n"); DEBUG("Please update Firmware\n");
goto error_1; goto error_1;
} }