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openFPGALoader
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altera: adapt delay according to clock freq

This commit is contained in:
Gwenhael Goavec-Merou 2021-05-15 08:35:16 +02:00
parent 610a76f653
commit 3d60cd647f
1 changed files with 6 additions and 4 deletions
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10
src/altera.cpp
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@ -46,6 +46,8 @@ void Altera::programMem()
int byte_length = _bit.getLength()/8;
uint8_t *data = _bit.getData();
uint32_t clk_period = 1e9/(float)_jtag->getClkFreq();
unsigned char cmd[2];
unsigned char tx[864/8], rx[864/8];
@ -59,7 +61,7 @@ void Altera::programMem()
_jtag->shiftIR(cmd, NULL, IRLENGTH, Jtag::PAUSE_IR);
/* RUNTEST IDLE 12000 TCK ENDSTATE IDLE; */
_jtag->set_state(Jtag::RUN_TEST_IDLE);
_jtag->toggleClk(12000);
_jtag->toggleClk(1000000/clk_period);
/* write */
ProgressBar progress("Flash SRAM", byte_length, 50, _quiet);
@ -89,7 +91,7 @@ void Altera::programMem()
_jtag->shiftIR(cmd, NULL, IRLENGTH, Jtag::PAUSE_IR);
/* RUNTEST 60 TCK; */
_jtag->set_state(Jtag::RUN_TEST_IDLE);
_jtag->toggleClk(60);
_jtag->toggleClk(5000/clk_period);
/*
* SDR 864 TDI
* (000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000)
@ -105,7 +107,7 @@ void Altera::programMem()
_jtag->shiftIR(cmd, NULL, IRLENGTH, Jtag::PAUSE_IR);
/* RUNTEST 49152 TCK; */
_jtag->set_state(Jtag::RUN_TEST_IDLE);
_jtag->toggleClk(49152);
_jtag->toggleClk(4099645/clk_period);
/* RUNTEST 512 TCK; */
_jtag->set_state(Jtag::RUN_TEST_IDLE);
_jtag->toggleClk(512);
@ -115,7 +117,7 @@ void Altera::programMem()
/* RUNTEST 12000 TCK; */
_jtag->set_state(Jtag::RUN_TEST_IDLE);
_jtag->toggleClk(12000);
_jtag->toggleClk(1000000/clk_period);
/* -> idle */
_jtag->set_state(Jtag::RUN_TEST_IDLE);
}