esp8266/boards/GENERIC_512K: Add custom minimal _boot.py.

dpgeorge · dpgeorge · commit eb7ae538f91b · 2021-06-18T14:13:18.000+10:00
Commit 0abf6f8 removed _boot.py from the manifest for the GENERIC_512K board because the build does not include a filesystem. But the main code expects _boot.py to be there and prints an error if it's not. So add a custom _boot.py, which just sets the gc.threshold(). Signed-off-by: Damien George <damien@micropython.org>
diff --git a/ports/esp8266/boards/GENERIC_512K/_boot.py b/ports/esp8266/boards/GENERIC_512K/_boot.py
@@ -0,0 +1,3 @@
+import gc
+
+gc.threshold((gc.mem_free() + gc.mem_alloc()) // 4)
diff --git a/ports/esp8266/boards/GENERIC_512K/manifest.py b/ports/esp8266/boards/GENERIC_512K/manifest.py
@@ -1,3 +1,4 @@
+freeze("$(BOARD_DIR)", "_boot.py", opt=3)
 freeze("$(PORT_DIR)/modules", ("apa102.py", "neopixel.py", "ntptime.py", "port_diag.py"))
 freeze("$(MPY_DIR)/drivers/dht", "dht.py")
 freeze("$(MPY_DIR)/drivers/onewire")

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,3 @@`
	`1`	`+import gc`
	`2`	`+`
	`3`	`+gc.threshold((gc.mem_free() + gc.mem_alloc()) // 4)`
Original file line number	Diff line number	Diff line change
`@@ -1,3 +1,4 @@`
	`1`	`+freeze("$(BOARD_DIR)", "_boot.py", opt=3)`
`1`	`2`	`freeze("$(PORT_DIR)/modules", ("apa102.py", "neopixel.py", "ntptime.py", "port_diag.py"))`
`2`	`3`	`freeze("$(MPY_DIR)/drivers/dht", "dht.py")`
`3`	`4`	`freeze("$(MPY_DIR)/drivers/onewire")`