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xilinx: re-add reset method. Tested on Artix

This commit is contained in:
Gwenhael Goavec-Merou 2019-10-04 08:26:16 +02:00
parent 8b021bdd3a
commit 0b49a72223
2 changed files with 10 additions and 38 deletions
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46
xilinx.cpp
View File

@ -25,49 +25,21 @@ Xilinx::~Xilinx() {}
#define ISC_DISABLE 0x16
#define BYPASS 0x3f
#if 0
void Xilinx::reset()
{
unsigned char instr;
/*unsigned char reset_seq[] = {
0xFF, 0xFF, 0xFF, 0xFF, // dummy word
0xAA, 0x99, 0x55, 0x66, // sync word
0x20, 0x00, 0x00, 0x00, // type1 noop
//0x30, 0x02, 0x00, 0x01,
//0x00, 0x00, 0x00, 0x00,
0x30, 0x00, 0x80, 0x01, // type1 write 1 word to CMD
0x00, 0x00, 0x00, 0x0F, // iprog cmd
0x20, 0x00, 0x00, 0x00}; // noop*/
unsigned char reset_seq[] = {
0xFF, 0xFF, 0xFF, 0xFF, // dummy word
0x55, 0x99, 0xAA, 0x66, // sync word
0x04, 0x00, 0x00, 0x00, // type1 noop
0x0C, 0x40, 0x00, 0x80,
0x00, 0x00, 0x00, 0x00,
0x0C, 0x00, 0x01, 0x80, // type1 write 1 word to CMD
0x00, 0x00, 0x00, 0xf0, // iprog cmd
0x04, 0x00, 0x00, 0x00}; // noop*/
instr = JSHUTDOWN;
_jtag->shiftIR(&instr, NULL, 6);
_jtag->toggleClk(16);
instr = CFG_IN;
_jtag->shiftIR(&instr, NULL, 6);
for (int i =0; i < 4*8; i++) {
printf("%x\n", reset_seq[i]);
}
_jtag->shiftDR(reset_seq, NULL, 4*8*8, FtdiJtag::UPDATE_DR );
_jtag->shiftIR(JSHUTDOWN, 6);
_jtag->shiftIR(JPROGRAM, 6);
_jtag->set_state(FtdiJtag::RUN_TEST_IDLE);
instr = JSTART;
_jtag->shiftIR(&instr, NULL, 6, FtdiJtag::UPDATE_IR);
//_jtag->toggleClk(32);
//instr = BYPASS;
//_jtag->shiftIR(&instr, NULL, 6);
//_jtag->toggleClk(1);
_jtag->toggleClk(10000*12);
_jtag->set_state(FtdiJtag::RUN_TEST_IDLE);
_jtag->toggleClk(2000);
_jtag->go_test_logic_reset();
_jtag->shiftIR(BYPASS, 6);
_jtag->set_state(FtdiJtag::RUN_TEST_IDLE);
_jtag->toggleClk(2000);
}
#endif
int Xilinx::idCode()
{

2
xilinx.hpp
View File

@ -12,7 +12,7 @@ class Xilinx: public Device {
void program(unsigned int offset = 0) override;
int idCode();
//void reset();
void reset();
private:
BitParser _bitfile;
};