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Altera_Forum
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14 years ago

JTAG USB dropping data when printing to terminal

I've got a system setup to print out ADC samples via a NIOS processor (standard) and JTAG USB. The ADC samples at 48Khz and the samples are streamed to the NIOS processor to be printed through PIO. ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

Generating counter data (ie just a for loop counting up to 1000) inside the C program and then printing it out via alt_printf() and JTAG USB shows no speed issues (no drops or jumps or stutters when printing to terminal). Only when data is transferred from the FPGA/Verilog system through the PIO to NIOS does data loss occur.