wip

panda/tests/gmbitbang/recv.py

@@ -0,0 +1,18 @@
+#!/usr/bin/env python3
+
+from panda import Panda
+
+if __name__ == "__main__":
+  p = Panda()
+  p.set_safety_mode(Panda.SAFETY_ALLOUTPUT)
+  p.set_gmlan(bus=2)
+  #p.can_send(0xaaa, b"\x00\x00", bus=3)
+  last_add: int | None = None
+  while True:
+    ret = p.can_recv()
+    if len(ret) > 0:
+      add = ret[0][0]
+      if last_add is not None and add != last_add + 1:
+        print("MISS: ", last_add, add)
+      last_add = add
+      print(ret)

panda/tests/gmbitbang/rigol.py

@@ -0,0 +1,36 @@
+#!/usr/bin/env python3
+# pylint: skip-file
+# type: ignore
+import numpy as np
+import visa
+import matplotlib.pyplot as plt
+
+resources = visa.ResourceManager()
+print(resources.list_resources())
+
+scope = resources.open_resource('USB0::0x1AB1::0x04CE::DS1ZA184652242::INSTR', timeout=2000, chunk_size=1024000)
+print(scope.query('*IDN?').strip())
+
+#voltscale = scope.ask_for_values(':CHAN1:SCAL?')[0]
+#voltoffset = scope.ask_for_values(":CHAN1:OFFS?")[0]
+
+#scope.write(":STOP")
+scope.write(":WAV:POIN:MODE RAW")
+scope.write(":WAV:DATA? CHAN1")[10:]
+rawdata = scope.read_raw()
+data = np.frombuffer(rawdata, 'B')
+print(data.shape)
+
+s1 = data[0:650]
+s2 = data[650:]
+s1i = np.argmax(s1 > 100)
+s2i = np.argmax(s2 > 100)
+s1 = s1[s1i:]
+s2 = s2[s2i:]
+
+plt.plot(s1)
+plt.plot(s2)
+plt.show()
+#data = (data - 130.0 - voltoffset/voltscale*25) / 25 * voltscale
+
+print(data)

panda/tests/gmbitbang/test.py

@@ -0,0 +1,32 @@
+#!/usr/bin/env python3
+import time
+from panda import Panda
+
+p1 = Panda('380016000551363338383037')
+p2 = Panda('430026000951363338383037')
+
+# this is a test, no safety
+p1.set_safety_mode(Panda.SAFETY_ALLOUTPUT)
+p2.set_safety_mode(Panda.SAFETY_ALLOUTPUT)
+
+# get versions
+print(p1.get_version())
+print(p2.get_version())
+
+# this sets bus 2 to actually be GMLAN
+p2.set_gmlan(bus=2)
+
+# send w bitbang then without
+#iden = 123
+iden = 18000
+#dat = "\x01\x02"
+dat = "\x01\x02\x03\x04\x05\x06\x07\x08"
+while 1:
+  iden += 1
+  p1.set_gmlan(bus=None)
+  p1.can_send(iden, dat, bus=3)
+  #p1.set_gmlan(bus=2)
+  #p1.can_send(iden, dat, bus=3)
+  time.sleep(0.01)
+  print(p2.can_recv())
+  #exit(0)

panda/tests/gmbitbang/test_one.py

@@ -0,0 +1,22 @@
+#!/usr/bin/env python3
+import time
+from panda import Panda
+
+p = Panda()
+p.set_safety_mode(Panda.SAFETY_ALLOUTPUT)
+
+# hack anything on bus
+p.set_gmlan(bus=2)
+time.sleep(0.1)
+while len(p.can_recv()) > 0:
+  print("clearing")
+  time.sleep(0.1)
+print("cleared")
+p.set_gmlan(bus=None)
+
+iden = 18000
+dat = "\x01\x02\x03\x04\x05\x06\x07\x08"
+while 1:
+  iden += 1
+  p.can_send(iden, dat, bus=3)
+  time.sleep(0.01)

panda/tests/gmbitbang/test_packer.c

@@ -0,0 +1,28 @@
+#include <stdio.h>
+#include <stdint.h>
+
+#define CANPACKET_DATA_SIZE_MAX 8
+#include "../../board/can_definitions.h"
+
+#include "../../board/drivers/canbitbang.h"
+
+int main() {
+  char out[300];
+  CANPacket_t to_bang = {0};
+  to_bang.addr = 20 << 18;
+  to_bang.data_len_code = 1;
+  to_bang.data[0] = 1;
+
+  int len = get_bit_message(out, &to_bang);
+  printf("T:");
+  for (int i = 0; i < len; i++) {
+    printf("%d", out[i]);
+  }
+  printf("\n");
+  printf("R:0000010010100000100010000010011110111010100111111111111111");
+  printf("\n");
+  return 0;
+}
+
+
+