debug

src/ftdiJtagMPSSE.cpp

@@ -19,7 +19,7 @@
 
 using namespace std;
 
-#define DEBUG 0
+#define DEBUG 1
 
 #ifdef DEBUG
 #define display(...) \
@@ -40,6 +40,7 @@ FtdiJtagMPSSE::FtdiJtagMPSSE(const cable_t &cable,
 			_tdo_pos(0)
 {
 	init_internal(cable.config);
+	_verbose = true;
 }
 
 FtdiJtagMPSSE::~FtdiJtagMPSSE()
@@ -235,8 +236,8 @@ int FtdiJtagMPSSE::writeTDI(const uint8_t *tdi, uint8_t *tdo, uint32_t len, bool
 						static_cast<unsigned char>((xfer - 1) & 0xff),       // low
 						static_cast<unsigned char>((((xfer - 1) >> 8) & 0xff))}; // high
 
-	display("%s len : %d %d %d %d\n", __func__, len, real_len, nb_byte,
-		nb_bit);
+	display("%s len : %d %d %d %d last: %d\n", __func__, len, real_len, nb_byte,
+		nb_bit, last);
 
 	if ((nb_byte + _num + 3) > _buffer_size)
 		mpsse_write();

src/ftdipp_mpsse.cpp

@@ -22,7 +22,7 @@
 
 using namespace std;
 
-//#define DEBUG 1
+#define DEBUG 1
 #define display(...) \
 	do { if (_verbose) fprintf(stdout, __VA_ARGS__);}while(0)
 
@@ -488,6 +488,17 @@ int FTDIpp_MPSSE::mpsse_write()
 
 #ifdef DEBUG
 	display("%s %d\n", __func__, _num);
+	printf("\t");
+	int col = 0;
+	for (size_t i = 0; i < _num; i++) {
+		col++;
+		if (col == 10) {
+			col = 0;
+			printf("\n\t");
+		}
+		printf("%02x ", _buffer[i]);
+	}
+	printf("\n");
 #endif
 
 	if ((ret = ftdi_write_data(_ftdi, _buffer, _num)) != _num) {

src/gowin.cpp

@@ -272,6 +272,7 @@ void Gowin::program(unsigned int offset, bool unprotect_flash)
 			programFlash();
 		} else { /* write bitstream into external flash */
 			_jtag->setClkFreq(10000000);
+			_jtag->setClkFreq(1000000);
 
 			if (!EnableCfg())
 				throw std::runtime_error("Error: fail to enable configuration");
@@ -286,6 +287,7 @@ void Gowin::program(unsigned int offset, bool unprotect_flash)
 				wr_rd(NOOP, NULL, 0, NULL, 0);
 				wr_rd(0x16, NULL, 0, NULL, 0);
 				wr_rd(0x00, NULL, 0, NULL, 0);
+				_jtag->set_state(Jtag::TEST_LOGIC_RESET);
 				/* save current read/write edge cfg before switching to SPI mode0
 				 * (rising edge: read / falling edge: write)
 				 */
@@ -870,34 +872,56 @@ int Gowin::spi_put_gw5a(const uint8_t *tx, uint8_t *rx, uint32_t len)
 {
 		uint8_t jtx[len];
 		uint8_t jrx[len];
-		if (rx)
-			len++;
+		uint8_t cmd = 0;
+		int ret = 0;
+		len--; // extract first byte + sent rest
+		for (ret = 0; ret < 5; ret++)
+			printf("\n");
+		//if (rx)
+		//	len++;
 		if (tx != NULL) {
+			cmd = FsParser::reverseByte(tx[0]); // extract first byte.
+
 			/* SPI: MSB, JTAG: LSB -> reverse Bytes */
+			printf("cmd: %02x(%02x)\n", cmd, tx[0]);
 			for (uint32_t i = 0; i < len; i++)
 				printf("write %d 0x%02x\n", i, tx[i]);
 			for (uint32_t i = 0; i < len; i++)
-				jtx[i] = FsParser::reverseByte(tx[i]);
+				jtx[i] = FsParser::reverseByte(tx[i + 1]);
+		}
+		if (tx[0] == 0x9F) {
+			printf("wait\n");
+			_jtag->setClkFreq(500e3);
+			getchar();
 		}
 		/* set TMS/CS low by moving to a state where loop is
 		 * with TMS == 0
 		 */
-		_jtag->set_state(Jtag::RUN_TEST_IDLE);
+		_jtag->set_state(Jtag::RUN_TEST_IDLE, cmd & 0x01);
+		//_jtag->flushTMS(true);
+		cmd >>= 1;
 		/* write/read the sequence. Force set to 0 to manage state here */
-		int ret = _jtag->read_write(jtx, (rx) ? jrx : NULL, 8 * len, 0);
+		ret = _jtag->read_write(&cmd, NULL, 7, 0);
+		ret = _jtag->read_write(jtx, (rx) ? jrx : NULL, 8 * len, 0);
 		if (ret != 0)
 			return -1;
 		/* set TMS/CS high by moving to a state where loop is
 		 * with TMS == 1
 		 */
 		_jtag->set_state(Jtag::TEST_LOGIC_RESET);
+		_jtag->flushTMS(true);
 		if (rx) {
 			/* again data must be reversed due to JTAG LSB */
 			for (uint32_t i = 0; i < len; i++)
 				printf("read %d 0x%02x -> 0x%02x\n", i, jrx[i], FsParser::reverseByte(jrx[i]));
 			for (uint32_t i=0; i < len; i++)
 				rx[i] = FsParser::reverseByte(jrx[i]);
 		}
+		for (ret = 0; ret < 5; ret++)
+			printf("\n");
+		if (tx[0] == 0x9f)
+			sleep(1);
+			//throw std::runtime_error("nothing");
 		return 0;
 }