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openFPGALoader
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main: avoid potential miss with probe clock frequency

This commit is contained in:
Gwenhael Goavec-Merou 2021-07-14 08:04:43 +02:00
parent fd329158de
commit 13af012163
1 changed files with 14 additions and 6 deletions
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20
src/main.cpp
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@ -72,7 +72,7 @@ int main(int argc, char **argv)
/* command line args. */
struct arguments args = {0, false, false, false, 0, "", "", "-", "", -1,
DEFAULT_FREQ, "-", false, false, false, false, Device::WR_SRAM, false,
0, "-", false, false, false, false, Device::WR_SRAM, false,
false, false, "", "", "", -1, 0};
/* parse arguments */
try {
@ -97,8 +97,6 @@ int main(int argc, char **argv)
board = &(board_list[args.board]);
}
uint32_t freq = args.freq;
/* if a board name is specified try to use this to determine cable */
if (board) {
/* set pins config (only when user has not already provided
@ -128,9 +126,13 @@ int main(int argc, char **argv)
else if (!board->fpga_part.empty() && args.fpga_part.empty())
args.fpga_part = board->fpga_part;
/* Some boards can override the default clock speed */
if (board->default_freq != CABLE_DEFAULT && freq == DEFAULT_FREQ)
freq = board->default_freq;
/* Some boards can override the default clock speed
* if args.freq == 0: the `--freq` arg has not been used
* => apply board->default_freq with a value of
* 0 (no default frequency) or > 0 (board has a default frequency)
*/
if (args.freq == 0)
args.freq = board->default_freq;
}
if (args.cable[0] == '-') { /* if no board and no cable */
@ -139,6 +141,12 @@ int main(int argc, char **argv)
args.cable = "ft2232";
}
/* if args.freq == 0: no user requirement nor board default
* clock speed => set default frequency
*/
if (args.freq == 0)
args.freq = DEFAULT_FREQ;
auto select_cable = cable_list.find(args.cable);
if (select_cable == cable_list.end()) {
printError("error : " + args.cable + " not found");