fix booting ram, commit to new size

minimal-payload/Makefile

@@ -13,7 +13,7 @@ all: main.uf2
 main.elf: startup.o main.o
 
 %.uf2: %.bin
-	~/code/uf2/utils/uf2conv.py -c -f 0xdeadbeef -b 0x08002000 -o $@ $<
+	~/code/uf2/utils/uf2conv.py -c -f 0xdeadbeef -b 0x08001000 -o $@ $<
 
 %.bin: %.elf
 	$(OBJCOPY) -O binary $< $@
@@ -29,4 +29,4 @@ main.elf: startup.o main.o
 	$(CC) $(CFLAGS) -c -o $@ $<
 
 clean:
-	rm -f *.o *.elf *.map *.dump
+	rm -f *.o *.elf *.map *.dump *.uf2