/*=====================================================================
| FUNCTIONS
| ====================================================================*/
static void _timing(int handle)
{
int cycles;
int ns;
byte[] noresult = new byte[1];
// Test the SS timing
CheetahApi.ch_spi_queue_clear(handle);
Console.Write("Testing inter-SS delays...\n");
Console.Out.Flush();
CheetahApi.ch_spi_queue_oe(handle, 1);
CheetahApi.ch_spi_queue_ss(handle, 0x1);
cycles = CheetahApi.ch_spi_queue_delay_cycles(handle, 51);
Console.Write(" Queued delay of {0:d} cycles within first SS " +
"assert/deassert.\n", cycles);
Console.Out.Flush();
CheetahApi.ch_spi_queue_ss(handle, 0);
CheetahApi.ch_spi_queue_ss(handle, 0x1);
ns = CheetahApi.ch_spi_queue_delay_ns(handle, 1500000);
Console.Write(" Queued delay of {0:d} ns within second SS " +
"assert/deassert.\n", ns);
Console.Out.Flush();
CheetahApi.ch_spi_queue_ss(handle, 0);
CheetahApi.ch_spi_batch_shift(handle, 0, noresult);
// Test data timing in read mode
Console.Write("Testing inter-data (read) delays...\n");
Console.Out.Flush();
CheetahApi.ch_spi_queue_clear(handle);
CheetahApi.ch_spi_queue_ss(handle, 0x1);
CheetahApi.ch_spi_queue_byte(handle, 1, 0xca);
ns = CheetahApi.ch_spi_queue_delay_ns(handle, 250000);
Console.Write(" Queued delay of {0:d} ns after first byte " +
"(0xca).\n", ns);
Console.Out.Flush();
CheetahApi.ch_spi_queue_byte(handle, 2, 0xfe);
cycles = CheetahApi.ch_spi_queue_delay_cycles(handle, 995);
Console.Write(" Queued delay of {0:d} cycles after second byte " +
"(0xfe).\n", cycles);
Console.Out.Flush();
CheetahApi.ch_spi_queue_byte(handle, 3, 0x00);
cycles = CheetahApi.ch_spi_queue_delay_cycles(handle, 20);
Console.Write(" Queued delay of {0:d} cycles after last byte " +
"(0x00).\n", cycles);
Console.Out.Flush();
CheetahApi.ch_spi_queue_ss(handle, 0);
byte[] data_in = new byte[6];
CheetahApi.ch_spi_batch_shift(handle, 6, data_in);
// Test data timing with write mode
Console.Write("Testing inter-data (write) delays...\n");
Console.Out.Flush();
CheetahApi.ch_spi_queue_clear(handle);
CheetahApi.ch_spi_queue_ss(handle, 0x1);
CheetahApi.ch_spi_queue_byte(handle, 1, 0xba);
ns = CheetahApi.ch_spi_queue_delay_ns(handle, 80000);
Console.Write(" Queued delay of {0:d} ns after first byte " +
"(0xba).\n", ns);
Console.Out.Flush();
CheetahApi.ch_spi_queue_byte(handle, 2, 0xbe);
cycles = CheetahApi.ch_spi_queue_delay_cycles(handle, 995);
Console.Write(" Queued delay of {0:d} cycles after second byte " +
"(0xbe).\n", cycles);
Console.Out.Flush();
CheetahApi.ch_spi_queue_byte(handle, 3, 0x00);
cycles = CheetahApi.ch_spi_queue_delay_cycles(handle, 20);
Console.Write(" Queued delay of {0:d} cycles after last byte " +
"(0x00).\n", cycles);
Console.Out.Flush();
CheetahApi.ch_spi_queue_ss(handle, 0);
CheetahApi.ch_spi_queue_oe(handle, 0);
CheetahApi.ch_spi_batch_shift(handle, 1, data_in);
}