wip

CMakeLists.txt

@@ -208,6 +208,8 @@ add_executable(openFPGALoader
 	${OPENFPGALOADER_HEADERS}
 )
 
+add_executable(fsread src/fsread.cpp src/configBitstreamParser.cpp src/fsparser.cpp src/display.cpp)
+
 include_directories(
 	${LIBUSB_INCLUDE_DIRS}
 	${LIBFTDI_INCLUDE_DIRS}
@@ -300,6 +302,7 @@ endif()
 if (ZLIB_FOUND)
 	include_directories(${ZLIB_INCLUDE_DIRS})
 	target_link_libraries(openFPGALoader ${ZLIB_LIBRARIES})
+	target_link_libraries(fsread ${ZLIB_LIBRARIES})
 	add_definitions(-DHAS_ZLIB=1)
 else()
 	message("zlib library not found: can't flash intel/altera devices")

src/fsparser.cpp

@@ -76,13 +76,24 @@ int FsParser::parseHeader()
 			case 0x0B: /* only present when bit_security is set */
 				_hdr["SecurityBit"] = "ON";
 				break;
-			case 0x10:
+			case 0x10: {
 				/* unknown conversion */
-				_hdr["loading_rate"] = to_string(0xff & (val >> 16));
-				_compressed = 0x01 & (val >> 13);
+				unsigned rate = (val >> 16) & 0xff;
+				if (rate) {
+					rate &= 0x7f;
+					rate ^= 0x44;
+					rate = (rate >> 2) + 1;
+					rate = 125000000/rate;
+				} else {
+					rate = 2500000; // default
+				}
+				_hdr["LoadingRate"] = to_string(rate);
+				_compressed = (val >> 13) & 1;
 				_hdr["Compress"] = (_compressed) ? "ON" : "OFF";
-				_hdr["ProgramDoneBypass"] = (0x01 & (val >> 12))?"ON":"OFF";
+				_hdr["ProgramDoneBypass"] = ((val >> 12) & 1) ? "ON" : "OFF";
+				printf("Loading Rate: %f MHz\n", rate*1e-6);
 				break;
+			}
 			case 0x12: /* unknown */
 				break;
 			case 0x51:
@@ -245,9 +256,10 @@ int FsParser::parse()
 	_checksum = 0;
 	for (uint32_t pos = 0; pos < tmp.size(); pos+=16)
 		_checksum += (uint16_t)bitToVal(&tmp[pos], 16);
-
-	if (_verbose)
+	
+	if (_verbose) {
 		printf("checksum 0x%04x\n", _checksum);
+	}
 
 	printSuccess("Done");
 

src/fsread.cpp

@@ -0,0 +1,7 @@
+#include "fsparser.hpp"
+
+int main(int argc, char *argv[]) {
+	FsParser fs(argv[1], true, 1);
+	fs.parse();
+	return 0;
+}

src/gowin.cpp

@@ -200,8 +200,9 @@ Gowin::~Gowin()
 bool Gowin::send_command(uint8_t cmd)
 {
 	_jtag->shiftIR(&cmd, nullptr, 8);
-	_jtag->toggleClk(8);
-
+	_jtag->toggleClk(6);
+	_jtag->flush();
+	usleep(250);
 	return true;
 }
 
@@ -224,9 +225,11 @@ bool Gowin::send_command(uint8_t cmd)
 
 uint32_t Gowin::readReg32(uint8_t cmd)
 {
-	uint32_t reg = 0, tmp = 0xff;
+	uint32_t reg = 0, tmp = 0xffffffffU;
 	send_command(cmd);
 	_jtag->shiftDR((uint8_t *)&tmp, (uint8_t *)&reg, 32);
+	_jtag->flush();
+	usleep(200);
 	return le32toh(reg);
 }
 
@@ -241,15 +244,15 @@ void Gowin::programFlash()
 	const uint8_t *data = _fs->getData();
 	int length = _fs->getLength();
 
-	_jtag->setClkFreq(2500000);
+	_jtag->setClkFreq(3000000);
 
 	send_command(CONFIG_DISABLE);
-	send_command(NOOP);
+	send_command(0);
 	_jtag->go_test_logic_reset();
-	_jtag->flush();
-	usleep(500*1000);
+	//_jtag->flush();
+	//usleep(500*1000);
 
-	eraseSRAM();
+	//eraseSRAM();
 	if (!eraseFLASH())
 		return;
 	/* test status a faire */
@@ -481,6 +484,7 @@ inline uint32_t bswap_32(uint32_t x)
 bool Gowin::writeFLASH(uint32_t page, const uint8_t *data, int length)
 {
 	printInfo("Write FLASH ", false);
+	//return true;
 	uint8_t xpage[256];
 	length /= 8;
 	for (int off = 0; off < length; off += 256) {
@@ -565,6 +569,15 @@ bool Gowin::writeSRAM(const uint8_t *data, int length)
 bool Gowin::eraseFLASH()
 {
 	printInfo("Erase Flash ", false);
+	send_command(CONFIG_DISABLE);
+	send_command(0);
+	send_command(CONFIG_DISABLE);
+	send_command(0);
+	readStatusReg();
+	readStatusReg();
+	readStatusReg();
+	readReg32(0x11);
+	usleep(500);
 	send_command(CONFIG_ENABLE);
 	send_command(EFLASH_ERASE);
 	uint32_t tx = 0;
@@ -574,20 +587,20 @@ bool Gowin::eraseFLASH()
 			_jtag->shiftDR((uint8_t *)&tx, NULL, 32);
 	}
 	sendClkUs(150*1000);
-	if (_verbose)
-		displayReadReg(readStatusReg());
 	send_command(CONFIG_DISABLE);
 	send_command(NOOP);
+	send_command(0x11);
 	send_command(CONFIG_DISABLE);
 	send_command(NOOP);
 	send_command(RELOAD);
 	send_command(NOOP);
+	_jtag->flush();
+	usleep(500*1000);
+	readReg32(0x11);
+	readReg32(0x11);
 	if (_verbose)
 		displayReadReg(readStatusReg());
 	_jtag->flush();
-	usleep(500*1000);
-	if (_verbose)
-		displayReadReg(readStatusReg());
 	printSuccess("Done");
 	return true;
 }
@@ -606,6 +619,19 @@ void Gowin::sendClkUs(unsigned us)
 bool Gowin::eraseSRAM()
 {
 	printInfo("Erase SRAM ", false);
+	
+	send_command(CONFIG_DISABLE);
+	send_command(0);
+	_jtag->go_test_logic_reset();
+	readReg32(0x11);
+	readReg32(0x41);
+	_jtag->go_test_logic_reset();
+	send_command(CONFIG_DISABLE);
+	send_command(0);
+	_jtag->go_test_logic_reset();
+	readReg32(0x41);
+	readReg32(0x11);
+
 	send_command(CONFIG_ENABLE);
 	send_command(ERASE_SRAM);
 	send_command(NOOP);