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;
}
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);
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