diff --git a/software/CMakeLists.txt b/software/CMakeLists.txt
index 944c3d9..2a9e74f 100644
--- a/software/CMakeLists.txt
+++ b/software/CMakeLists.txt
@@ -8,13 +8,7 @@ pico_sdk_init()
 
 add_compile_options(-Wall)
 
-## todo board files
-add_definitions(-DDEBUG_PIN0=22 -DDEBUG_N_PINS=4)
-add_definitions(-DPICO_DEFAULT_UART_TX_PIN=16 -DPICO_DEFAULT_UART_RX_PIN=17)
-
 # add_definitions(-DDEFAULT_DVI_SERIAL_CONFIG=picodvi_pmod0_cfg)
-# add_definitions(-DRUN_FROM_CRYSTAL=1)
-# add_definitions(-DDVI_SERIAL_DEBUG=1)
 
 include_directories(
 	assets
diff --git a/software/apps/vista/CMakeLists.txt b/software/apps/vista/CMakeLists.txt
index 0333abd..e583a15 100644
--- a/software/apps/vista/CMakeLists.txt
+++ b/software/apps/vista/CMakeLists.txt
@@ -6,6 +6,10 @@ add_executable(vista
 	main.c
 )
 
+# All code and data must be RAM-resident so we can stream continuously from
+# flash using direct SSI DMA, which would trample on XIP.
+pico_set_binary_type(vista copy_to_ram)
+
 target_compile_definitions(vista PRIVATE
 	DVI_VERTICAL_REPEAT=1
 	DVI_N_TMDS_BUFFERS=5
@@ -14,7 +18,6 @@ target_compile_definitions(vista PRIVATE
 
 target_compile_definitions(vista PRIVATE PICO_STACK_SIZE=0x200)
 
-
 target_link_libraries(vista
 	pico_stdlib
 	pico_multicore