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openFPGALoader
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gowin: mcufw may be written without fs (but this erase all memory)

This commit is contained in:
Gwenhael Goavec-Merou 2023-12-14 13:13:29 +01:00
parent 2093ce7520
commit 22f33618b0
1 changed files with 15 additions and 6 deletions
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21
src/gowin.cpp
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@ -260,8 +260,12 @@ void Gowin::reset()
void Gowin::programFlash()
{
const uint8_t *data = _fs->getData();
int length = _fs->getLength();
const uint8_t *data = NULL;
int length = 0;
if (_fs) {
data = _fs->getData();
length = _fs->getLength();
}
_jtag->setClkFreq(2500000); // default for GOWIN, should use LoadingRate from file header
@ -281,14 +285,18 @@ void Gowin::programFlash()
if (!disableCfg())
return;
/* test status a faire */
if (!writeFLASH(0, data, length))
return;
if (data) {
if (!writeFLASH(0, data, length))
return;
}
if (_mcufw) {
const uint8_t *mcu_data = _mcufw->getData();
int mcu_length = _mcufw->getLength();
if (!writeFLASH(0x380, mcu_data, mcu_length))
return;
}
if (_verify)
printWarn("writing verification not supported");
@ -301,7 +309,8 @@ void Gowin::programFlash()
usleep(2*150*1000);
/* check if file checksum == checksum in FPGA */
if (!skip_checksum)
/* don't try to read checksum in mcufw mode only */
if (!skip_checksum && data)
checkCRC();
if (_verbose)
@ -385,7 +394,7 @@ void Gowin::programSRAM()
void Gowin::program(unsigned int offset, bool unprotect_flash)
{
if (!_fs)
if (!_fs && !_mcufw)
return;
if (_mode == FLASH_MODE) {