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openFPGALoader
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use RawParser for gowin mcu flashing

This commit is contained in:
balika011 2022-07-24 17:31:36 +02:00
parent c3d13e8b75
commit e44af80776
2 changed files with 22 additions and 29 deletions
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49
src/gowin.cpp
View File

@ -83,7 +83,9 @@ Gowin::Gowin(Jtag *jtag, const string filename, const string &file_type, std::st
_spi_msk(BSCAN_SPI_MSK)
{
_fs = NULL;
uint32_t idcode = _jtag->get_target_device_id();;
_mcufw = NULL;
uint32_t idcode = _jtag->get_target_device_id();
if (prg_type == Device::WR_FLASH)
_mode = Device::FLASH_MODE;
@ -159,23 +161,16 @@ Gowin::Gowin(Jtag *jtag, const string filename, const string &file_type, std::st
if (idcode != 0x0100981b)
throw std::runtime_error("Microcontroller firmware flashing only supported on GW1NSR-4C");
FILE *fd = fopen(mcufw.c_str(), "rb");
if (!fd)
throw std::runtime_error("Error: fail to open " + filename);
fseek(fd, 0, SEEK_END);
int file_size = ftell(fd);
fseek(fd, 0, SEEK_SET);
_mcufw = new RawParser(mcufw, false);
mcufwdata.resize(file_size);
if (_mcufw->parse() == EXIT_FAILURE) {
printError("FAIL");
delete _mcufw;
throw std::runtime_error("can't parse file");
} else {
printSuccess("DONE");
}
int ret = fread((char *) mcufwdata.data(), sizeof(char), file_size, fd);
fclose(fd);
if (ret != file_size)
throw std::runtime_error("Error: fail to read " + mcufw);
/* FIXME: implement checksum calculation */
skip_checksum = true;
}
}
@ -184,6 +179,8 @@ Gowin::~Gowin()
{
if (_fs)
delete _fs;
if (_mcufw)
delete _mcufw;
}
void Gowin::reset()
@ -195,20 +192,16 @@ void Gowin::reset()
void Gowin::programFlash()
{
int status;
uint8_t *data;
int length;
uint8_t *mcu_data;
int mcu_length;
data = _fs->getData();
length = _fs->getLength();
uint8_t *data = _fs->getData();
int length = _fs->getLength();
if (mcufwdata.size() == 0) {
mcu_data = nullptr;
mcu_length = 0;
} else {
mcu_data = (uint8_t *) mcufwdata.data();
mcu_length = mcufwdata.size() * 8;
uint8_t *mcu_data = nullptr;
int mcu_length = 0;
if (_mcufw) {
mcu_data = _mcufw->getData();
mcu_length = _mcufw->getLength();
}
/* erase SRAM */

2
src/gowin.hpp
View File

@ -62,6 +62,6 @@ class Gowin: public Device, SPIInterface {
uint8_t _spi_di; /**< di signal (mosi) offset in bscan SPI */
uint8_t _spi_do; /**< do signal (miso) offset in bscan SPI */
uint8_t _spi_msk; /** default spi msk with only do out */
std::string mcufwdata;
ConfigBitstreamParser *_mcufw;
};
#endif // GOWIN_HPP_