From c1dafd76a172ae92b171eb176f512430e1d55bb6 Mon Sep 17 00:00:00 2001
From: obijuan <juan@iearobotics.com>
Date: Tue, 3 Sep 2019 11:58:18 +0200
Subject: [PATCH] z80-loader.py added

---
 roms/z80-loader.py | 60 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 60 insertions(+)
 create mode 100755 roms/z80-loader.py

diff --git a/roms/z80-loader.py b/roms/z80-loader.py
new file mode 100755
index 0000000..33fbe93
--- /dev/null
+++ b/roms/z80-loader.py
@@ -0,0 +1,60 @@
+#!/usr/bin/python3
+# -*- coding: latin-1 -*-
+
+import time
+import serial
+import sys
+
+#-- Poner el nombre del puerto serie aquí
+#-- En windows será COMx
+SERIAL_PORT = "/dev/ttyUSB1"
+
+MEM_SIZE = 16384
+
+filename = sys.argv[1]
+
+print("Fichero a cargar: {}".format(filename))
+
+with open(filename, 'rb') as file:
+    raw_binary_data = file.read()
+
+prog_len = len(raw_binary_data)
+
+print("Tamano ROM: {}".format(MEM_SIZE))
+print("Tamano programa: {}".format(prog_len))
+
+data_aschex = ["{:02X}".format(b) for b in raw_binary_data]
+data_aschex = " ".join(data_aschex)
+
+print(data_aschex)
+
+#----- Programa principal
+#-- Abrir el puerto serie
+with serial.Serial(SERIAL_PORT, 115200) as sp:
+
+    #-- Imprimir la información del pueto serie
+    print("Puerto serie: {}".format(sp.portstr))
+
+
+    #-- Enviar un pulso por DTR para entrar en
+    #-- modo bootloader
+    sp.setDTR(1)
+    time.sleep(0.2)
+    sp.setDTR(0)
+    time.sleep(0.2)
+
+    #-- Enviar los datos
+    prog1 = [0x00, 0x00, 0x00, 0x76]
+    prog2 = [0x00, 0x00, 0x18, 0xFE]
+    prog3 = [0x3D, 0xD3, 0x40, 0x76]
+    prog4 = [0x00, 0x3D, 0xD3, 0x40]
+    print("Cargando programa...")
+    sp.write(raw_binary_data)
+    fill = MEM_SIZE - prog_len
+    if (fill < 0):
+        print ("Warning! Programa No cabe en memoria. Falta(n) {} byte(s)".format(abs(fill)))
+    else:
+        print("Enviando relleno...")
+        bytes_fill = bytes(fill)
+        sp.write(bytes_fill)
+        print("Done!")