HackRF
(continued from previous page)
LPC_SGPIO->SLICE_MUX_CFG[3] =
(0L << 8) | // INV_QUALIFIER = 0 (use normal qualifier)
(0L << 6) | // PARALLEL_MODE = 0 (shift 1 bit per clock)
(0L << 4) | // DATA_CAPTURE_MODE = 0 (detect rising edge)
(0L << 3) | // INV_OUT_CLK = 0 (normal clock)
(0L << 2) | // CLKGEN_MODE = 0 (use clock from COUNTER)
(0L << 1) | // CLK_CAPTURE_MODE = 0 (use rising clock edge)
(0L << 0); // MATCH_MODE = 0 (do not match data)
LPC_SGPIO->PRESET[3] = 0;
LPC_SGPIO->COUNT[3] = 0;
LPC_SGPIO->POS[3] = (0x1FL << 8) | (0x1FL << 0);
LPC_SGPIO->REG[0] = 0xAAAAAAAA; // Primary output data register
LPC_SGPIO->REG_SS[0] = 0xAAAAAAAA; // Shadow output data register
// Start SGPIO operation by enabling slice clocks.
LPC_SGPIO->CTRL_ENABLED =
(1L << 3) | // Slice D
(1L << 0); // Slice A
98 Chapter 25. LPC4350 SGPIO Experimentation
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