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This commit is contained in:
iceman1001 2020-01-12 17:28:12 +01:00
commit ed67936892
11 changed files with 177 additions and 177 deletions
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14
armsrc/fpgaloader.c
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@ -141,16 +141,16 @@ void FpgaSetupSsc(void) {
// Now set up the SSC proper, starting from a known state.
AT91C_BASE_SSC->SSC_CR = AT91C_SSC_SWRST;
// RX clock comes from TX clock, RX starts on Transmit Start,
// data and frame signal is sampled on falling edge of RK
// RX clock comes from TX clock, RX starts on Transmit Start,
// data and frame signal is sampled on falling edge of RK
AT91C_BASE_SSC->SSC_RCMR = SSC_CLOCK_MODE_SELECT(1) | SSC_CLOCK_MODE_START(1);
// 8 bits per transfer, no loopback, MSB first, 1 transfer per sync
// pulse, no output sync
AT91C_BASE_SSC->SSC_RFMR = SSC_FRAME_MODE_BITS_IN_WORD(8) | AT91C_SSC_MSBF | SSC_FRAME_MODE_WORDS_PER_TRANSFER(0);
// TX clock comes from TK pin, no clock output, outputs change on falling
// edge of TK, frame sync is sampled on rising edge of TK, start TX on rising edge of TF
// TX clock comes from TK pin, no clock output, outputs change on falling
// edge of TK, frame sync is sampled on rising edge of TK, start TX on rising edge of TF
AT91C_BASE_SSC->SSC_TCMR = SSC_CLOCK_MODE_SELECT(2) | SSC_CLOCK_MODE_START(5);
// tx framing is the same as the rx framing
@ -439,7 +439,7 @@ void FpgaDownloadAndGo(int bitstream_version) {
// Send a 16 bit command/data pair to the FPGA.
// The bit format is: C3 C2 C1 C0 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
// where C is the 4 bit command and D is the 12 bit data
//
//
// @params cmd and v gets or over eachother. Take careful note of overlapping bits.
//-----------------------------------------------------------------------------
void FpgaSendCommand(uint16_t cmd, uint16_t v) {
@ -461,11 +461,11 @@ void FpgaWriteConfWord(uint16_t v) {
// enable/disable FPGA internal tracing
//-----------------------------------------------------------------------------
void FpgaEnableTracing(void) {
FpgaSendCommand(FPGA_CMD_TRACE_ENABLE, 1);
FpgaSendCommand(FPGA_CMD_TRACE_ENABLE, 1);
}
void FpgaDisableTracing(void) {
FpgaSendCommand(FPGA_CMD_TRACE_ENABLE, 0);
FpgaSendCommand(FPGA_CMD_TRACE_ENABLE, 0);
}
//-----------------------------------------------------------------------------