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Add raw HF signal plotting (#786)

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* Add raw HF signal plotting
* new fpga module hi_get_trace.v - store A/D converter output to circular buffer on FPGA
* new command 'hf plot' - pull data from FPGA and display it in Graph Window
This commit is contained in:
pwpiwi 2019-02-20 19:18:12 +01:00 • committed by GitHub
parent 7527c2bdd8
commit fc52fbd42f
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GPG key ID: 4AEE18F83AFDEB23
30 changed files with 441 additions and 62 deletions
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22
armsrc/fpgaloader.c
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@ -166,7 +166,7 @@ bool FpgaSetupSscDma(uint8_t *buf, uint16_t sample_count)
AT91C_BASE_PDC_SSC->PDC_RPR = (uint32_t) buf; // transfer to this memory address
AT91C_BASE_PDC_SSC->PDC_RCR = sample_count; // transfer this many samples
AT91C_BASE_PDC_SSC->PDC_RNPR = (uint32_t) buf; // next transfer to same memory address
AT91C_BASE_PDC_SSC->PDC_RNCR = sample_count; // ... with same number of samples AT91C_BASE_PDC_SSC->PDC_PTCR = AT91C_PDC_RXTEN; // go!
AT91C_BASE_PDC_SSC->PDC_RNCR = sample_count; // ... with same number of samples
AT91C_BASE_PDC_SSC->PDC_PTCR = AT91C_PDC_RXTEN; // go!
return true;
}
@ -417,8 +417,10 @@ void FpgaDownloadAndGo(int bitstream_version)
uint8_t output_buffer[OUTPUT_BUFFER_LEN] = {0x00};
// check whether or not the bitstream is already loaded
if (downloaded_bitstream == bitstream_version)
if (downloaded_bitstream == bitstream_version) {
FpgaEnableTracing();
return;
}
// make sure that we have enough memory to decompress
BigBuf_free(); BigBuf_Clear_ext(false);
@ -454,16 +456,30 @@ void FpgaSendCommand(uint16_t cmd, uint16_t v)
while ((AT91C_BASE_SPI->SPI_SR & AT91C_SPI_TXEMPTY) == 0); // wait for the transfer to complete
AT91C_BASE_SPI->SPI_TDR = AT91C_SPI_LASTXFER | cmd | v; // send the data
}
//-----------------------------------------------------------------------------
// Write the FPGA setup word (that determines what mode the logic is in, read
// vs. clone vs. etc.). This is now a special case of FpgaSendCommand() to
// avoid changing this function's occurence everywhere in the source code.
//-----------------------------------------------------------------------------
void FpgaWriteConfWord(uint8_t v)
void FpgaWriteConfWord(uint16_t v)
{
FpgaSendCommand(FPGA_CMD_SET_CONFREG, v);
}
//-----------------------------------------------------------------------------
// enable/disable FPGA internal tracing
//-----------------------------------------------------------------------------
void FpgaEnableTracing(void)
{
FpgaSendCommand(FPGA_CMD_TRACE_ENABLE, 1);
}
void FpgaDisableTracing(void)
{
FpgaSendCommand(FPGA_CMD_TRACE_ENABLE, 0);
}
//-----------------------------------------------------------------------------
// Set up the CMOS switches that mux the ADC: four switches, independently
// closable, but should only close one at a time. Not an FPGA thing, but