script improvements

cc2500_init.json

@@ -3,8 +3,8 @@
     "FIFOTHR" :     { "hex":"0x47", "dec":71},
     "PKTCTRL0":     { "hex":"0x05", "dec":5},
     "FREQ2"   :     { "hex":"0x5D", "dec":93},
-    "FREQ1"   :     { "hex":"0x93", "dec":147},
-    "FREQ0"   :     { "hex":"0xB1", "dec":177},
+    "FREQ1"   :     { "hex":"0xD1", "dec":209},
+    "FREQ0"   :     { "hex":"0x4A", "dec":74},
     "MDMCFG4" :     { "hex":"0x0D", "dec":13},
     "MDMCFG3" :     { "hex":"0x3B", "dec":59},
     "MDMCFG2" :     { "hex":"0x73", "dec":115},

read.py

@@ -2,9 +2,6 @@ import spidev
 import time
 import json
  
-# Example register to read (e.g., version)
-VERSION_REG = 0xF1  # CC2500 version register (0xF1 is 0x31 | 0xC0 for read + burst)
-
 # Initialize SPI
 global spi 
 global init_data
@@ -47,7 +44,7 @@ def read_register(addr):
 
 def init_cc2500():
     spi.open(0, 0)  # Bus 0, CE0 (Pin 24)
-    spi.max_speed_hz = 500000  # Safe start speed
+    spi.max_speed_hz = 2000000  # Safe start speed
     spi.mode = 0b00  # SPI mode 0
 
     print("Sending SRES (reset)...")
@@ -97,13 +94,13 @@ def receive_packet():
         return None
 
     # Read data
-    data = burst_read(0x3F, rx_bytes)  # 0x3F = RX FIFO
+    RXFIFO = MEMORY["RXFIFO"]["dec"]
+    data = burst_read(RXFIFO, rx_bytes)  # 0x3F = RX FIFO
     print(f"Received: {data}")
     return data
 
 def test_read_write_reg():
-    # FIFOTHR = CONFIG_REGS["FIFOTHR"]["dec"]
-    FIFOTHR = 0x03
+    FIFOTHR = CONFIG_REGS["FIFOTHR"]["dec"]
     print("reg ", hex(FIFOTHR))
     initial_val = read_register(FIFOTHR)
     test_value = initial_val + 1
@@ -152,7 +149,7 @@ if __name__ == "__main__":
 
     for reg_name, values in init_data.items():
         addr_dec = regs_data["CONFIG_REGS"][reg_name]["dec"]
-        addr_hex = regs_data["CONFIG_REGS"][reg_name]["dec"]
+        addr_hex = regs_data["CONFIG_REGS"][reg_name]["hex"]
         value_hex = values["hex"]
         value_dec = values["dec"]
         # print(addr)
@@ -160,7 +157,9 @@ if __name__ == "__main__":
         # print("writing "+str(addr_hex) + " to "+str(addr_dec))
         write_reg(addr_dec, value_dec)
     print("Read + Write test ", test_read_write_reg())
+    try:
         while True:
             receive_packet()
             time.sleep(1)
+    finally:
         spi.close()