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openFPGALoader
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gowin: checks if fs is targeted for connected device

This commit is contained in:
Gwenhael Goavec-Merou 2021-06-24 08:57:18 +02:00
parent bb9d22d89a
commit b150bbdd23
1 changed files with 8 additions and 1 deletions
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9
src/gowin.cpp
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@ -75,6 +75,8 @@ Gowin::Gowin(Jtag *jtag, const string filename, const string &file_type,
is_gw1n1(false)
{
_fs = NULL;
uint32_t idcode = idCode();
if (!_file_extension.empty()) {
if (_file_extension == "fs") {
if (prg_type == Device::WR_FLASH)
@ -98,6 +100,11 @@ Gowin::Gowin(Jtag *jtag, const string filename, const string &file_type,
if (_verbose)
_fs->displayHeader();
string idcode_str = _fs->getHeaderVal("idcode");
uint32_t fs_idcode = std::stoul(idcode_str.c_str(), NULL, 16);
if (fs_idcode != idcode) {
throw std::runtime_error("mismatch between target's idcode and fs idcode");
}
} else {
throw std::runtime_error("incompatible file format");
}
@ -105,7 +112,7 @@ Gowin::Gowin(Jtag *jtag, const string filename, const string &file_type,
_jtag->setClkFreq(2500000);
/* erase and program flash differ for GW1N1 */
if (idCode() == 0x0900281B)
if (idcode == 0x0900281B)
is_gw1n1 = true;
}