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openFPGALoader
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jtag: when verbose > 1: display unfiltered/raw IDCODE

This commit is contained in:
Gwenhael Goavec-Merou 2022-03-27 07:14:14 +02:00
parent 65c1d2ff0e
commit 10ee84bb6d
1 changed files with 10 additions and 1 deletions
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11
src/jtag.cpp
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@ -65,7 +65,7 @@ using namespace std;
Jtag::Jtag(cable_t &cable, const jtag_pins_conf_t *pin_conf, string dev,
const string &serial, uint32_t clkHZ, int8_t verbose,
const bool invert_read_edge, const string &firmware_path):
_verbose(verbose),
_verbose(verbose > 1),
_state(RUN_TEST_IDLE),
_tms_buffer_size(128), _num_tms(0),
_board_name("nope"), device_index(0)
@ -127,6 +127,7 @@ void Jtag::init_internal(cable_t &cable, const string &dev, const string &serial
int Jtag::detectChain(int max_dev)
{
char message[256];
unsigned char rx_buff[4];
/* WA for CH552/tangNano: write is always mandatory */
unsigned char tx_buff[4] = {0xff, 0xff, 0xff, 0xff};
@ -139,12 +140,20 @@ int Jtag::detectChain(int max_dev)
go_test_logic_reset();
set_state(SHIFT_DR);
if (_verbose)
printInfo("Raw IDCODE:");
for (int i = 0; i < max_dev; i++) {
read_write(tx_buff, rx_buff, 32, (i == max_dev-1)?1:0);
tmp = 0;
for (int ii=0; ii < 4; ii++)
tmp |= (rx_buff[ii] << (8*ii));
if (_verbose) {
snprintf(message, sizeof(message), "- %d -> 0x%08x", i, tmp);
printInfo(message);
}
/* search IDCODE in fpga_list and misc_dev_list
* since most device have idcode with high nibble masked
* we start to search sub IDCODE