feat: read memory page by page

Author: eigen-value

examples/read_mem.py

@@ -1,6 +1,5 @@
 from sys import exit
 from stm32_flash import *
-from stm32_flash import _STM32_readMode, _STM32_sendAddress, _STM32_readPage
 
 ans = STM32_startCommunication()
 if ans == STM32_NACK:
@@ -9,13 +8,5 @@
 
 print('\nSTM32 FOUND')
 
-print('\nREADING MEMORY')
-
-_STM32_readMode()
-print('\nREAD MODE')
-
-_STM32_sendAddress(STM32_ADDRESS)
-print('\nADDRESS SENT')
-
-page = _STM32_readPage()
-print(page)
+print("\nREADING 10 MEM PAGES")
+STM32_readMEM(10)

stm32_flash.py

@@ -1,5 +1,5 @@
 from time import sleep_ms
-from machine import Pin, UART
+from machine import UART
 
 STM32_INIT = b'\x7F'
 STM32_NACK = b'\x1F'
@@ -167,7 +167,7 @@ def _STM32_sendAddress(address: bytes) -> bytes:
 
 def _incrementAddress(address: bytearray):
     """
-    Incremets address by one page (256 bytes)
+    Increments address by one page (256 bytes)
     :param address:
     :return:
     """
@@ -220,3 +220,21 @@ def _STM32_flashPage(data: bytearray) -> bytes:
     uart.write(bytes([checksum]))
 
     return _STM32_waitForAnswer()
+
+
+def STM32_readMEM(pages: int):
+    """
+    Reads n 256-bytes pages from memory
+    :param pages: number of pages to read
+    :return:
+    """
+
+    for i in range(0, pages):
+        _STM32_readMode()
+        _STM32_sendAddress(readAddress)
+
+        page = _STM32_readPage()
+        print(f"Page {i+1} content:\n")
+        print(page.hex())
+
+        _incrementAddress(readAddress)