1 files changed, 160 insertions, 0 deletions
diff --git a/usrp2/firmware/apps/ibs_tx_test.c b/usrp2/firmware/apps/ibs_tx_test.c
new file mode 100644
index 000000000..ff9446d92
--- /dev/null
+++ b/usrp2/firmware/apps/ibs_tx_test.c
@@ -0,0 +1,160 @@
+#include "u2_init.h"
+#include "memory_map.h"
+#include "spi.h"
+#include "hal_io.h"
+#include "buffer_pool.h"
+#include "nonstdio.h"
+
+// Globals
+#define EMPTY 0
+#define FILLING 1
+#define FULL 2
+#define EMPTYING 3
+
+#define PORT 2    // ethernet = 2, serdes = 0
+int dsp_rx_buf, dsp_tx_buf, serdes_rx_buf, serdes_tx_buf;
+int dsp_rx_idle, dsp_tx_idle, serdes_rx_idle, serdes_tx_idle;
+
+int buffer_state[4];
+
+static void
+wait_until_status_nonzero(void)
+{
+  while (buffer_pool_status->status == 0)
+    ;
+}
+
+int
+main(void)
+{
+  int i;
+  
+  u2_init();
+  
+  dsp_tx_regs->freq = 0;
+  dsp_tx_regs->scale_iq = (1 << 16) | 1;
+  dsp_tx_regs->interp_rate = 8;
+
+  // Write data to be sent into the first buffer
+  volatile unsigned int *buffer0 = buffer_ram(0);
+  volatile unsigned int *buffer1 = buffer_ram(1);
+  
+
+  putstr("Starting to fill in RAM\n");
+  for(i=0;i<512;i++) 
+    buffer0[i] = i;
+  putstr("Filled in RAM\n");
+  
+  buffer0[0] = 7; // start and end of buffer, send immediately
+  buffer0[1] = 0x0000;  // start time
+  bp_clear_buf(0);
+  bp_send_from_buf(0, 1, 1, 0, 9);
+  while (buffer_pool_status->status == 0)
+    ;
+  while(timer_regs -> time < 0x6000)
+    {}
+
+  buffer0[0] = 3; // start and end of buffer
+  buffer0[1] = 0x8000;  // start time
+  bp_clear_buf(0);
+  bp_send_from_buf(0, 1, 1, 0, 9);
+  while (buffer_pool_status->status == 0)
+    ;
+  while(timer_regs -> time < 0x8400)
+    {}
+
+  buffer0[0] = 3; // start and end of buffer
+  buffer0[1] = 0x8800;  // start time
+  bp_clear_buf(0);
+  bp_send_from_buf(0, 1, 1, 0, 9);
+  while (buffer_pool_status->status == 0)
+    ;
+  while(timer_regs -> time < 0x9000)
+    {}
+
+  buffer0[0] = 0x2;  // not last
+  buffer0[1] = 0x9100;  // start time
+  bp_clear_buf(0);
+  bp_send_from_buf(0, 1, 1, 0, 9);
+  while (buffer_pool_status->status == 0)
+    ;
+  buffer0[0] = 0x1;  // last
+  buffer0[1] = 0x0000;  // start time
+  bp_clear_buf(0);
+  bp_send_from_buf(0, 1, 1, 0, 9);
+  while (buffer_pool_status->status == 0)
+    ;
+
+  
+  buffer0[0] = 0x3;  // first and last
+  buffer0[1] = 0x8000;  // Time in the past
+  bp_clear_buf(0);
+  bp_send_from_buf(0, 1, 1, 0, 9);
+  while (buffer_pool_status->status == 0)
+    ;
+
+  /*
+  buffer0[0] = 0x2; // not last
+  buffer0[1] = 0x9600;  // start time
+  bp_clear_buf(0);
+  bp_send_from_buf(0, 1, 1, 0, 9);
+  while (buffer_pool_status->status == 0)
+    ;
+  */
+
+  while(timer_regs -> time < 0xa000)
+    {}
+
+  putstr("Done\n");
+
+  while(1)
+    {}
+  hal_finish();
+  
+  // Send a bunch, let them pile up in FIFO
+  bp_send_from_buf(0, 2, 1, 21, 80);    wait_until_status_nonzero();
+  bp_clear_buf(0);
+  putstr("First add'l TX done\n");
+  bp_send_from_buf(0, 2, 1, 81, 288);   wait_until_status_nonzero();
+  bp_clear_buf(0);
+  bp_send_from_buf(0, 2, 1, 289, 292);  wait_until_status_nonzero();
+  bp_clear_buf(0);
+  bp_send_from_buf(0, 2, 1, 293, 326);  wait_until_status_nonzero();
+  bp_clear_buf(0);
+  bp_send_from_buf(0, 2, 1, 327, 399);  wait_until_status_nonzero();
+  bp_clear_buf(0);
+  bp_send_from_buf(0, 2, 1, 400, 511);  wait_until_status_nonzero();
+  bp_clear_buf(0);
+  putstr("All add'l TX done\n");
+  
+  bp_receive_to_buf(1, 2, 1, 21, 80);   wait_until_status_nonzero();
+  bp_clear_buf(1);
+  putstr("First add'l RX done\n");
+  bp_receive_to_buf(1, 2, 1, 81, 288);  wait_until_status_nonzero();
+  bp_clear_buf(1);
+  bp_receive_to_buf(1, 2, 1, 289, 292); wait_until_status_nonzero();
+  bp_clear_buf(1);
+  bp_receive_to_buf(1, 2, 1, 293, 326); wait_until_status_nonzero();
+  bp_clear_buf(1);
+  bp_receive_to_buf(1, 2, 1, 327, 399); wait_until_status_nonzero();
+  bp_clear_buf(1);
+  bp_receive_to_buf(1, 2, 1, 400, 511); wait_until_status_nonzero();
+  bp_clear_buf(1);
+  putstr("All add'l RX done\n");
+
+  for(i=0;i<512;i++)
+    if(buffer0[i] != buffer1[i]) {
+      putstr("ERROR at location: ");
+      puthex_nl(i);
+      putstr("Value sent: ");
+      puthex_nl(buffer0[i]);
+      putstr("Value rcvd: ");
+      puthex_nl(buffer1[i]);
+      //break;
+    }
+  
+  putstr("Done Testing\n");
+  
+  hal_finish();
+  return 1;
+}