8 files changed, 24 insertions, 36 deletions
diff --git a/lib/pbdrv/drv/arduino/mod.cpp b/lib/pbdrv/drv/arduino/mod.cpp
index 328c3c7..9130334 100644
--- a/lib/pbdrv/drv/arduino/mod.cpp
+++ b/lib/pbdrv/drv/arduino/mod.cpp
@@ -82,7 +82,3 @@ int main(void) {
  * puzzle modules are likely not using USB.
  */
 
-void pb_null_err(const char * from) {
-	Serial.println(from);
-}
-
diff --git a/lib/pbdrv/mpack-config.h b/lib/pbdrv/mpack-config.h
index 7e7d0b2..f040698 100644
--- a/lib/pbdrv/mpack-config.h
+++ b/lib/pbdrv/mpack-config.h
@@ -11,11 +11,11 @@
 #define MPACK_REALLOC pb_realloc
 
 // more reasonable buffer size (all messages are small)
-#define MPACK_BUFFER_SIZE 80
-#define MPACK_STACK_SIZE 80
-#define MPACK_PAGE_SIZE 80
+#define MPACK_BUFFER_SIZE 256
+#define MPACK_STACK_SIZE MPACK_BUFFER_SIZE
+#define MPACK_PAGE_SIZE MPACK_BUFFER_SIZE
 
-// // disable unused features (causes errors?)
-// #define MPACK_NODE 0
-// #define MPACK_BUILDER 0
+// disable unused features (causes errors?)
+#define MPACK_NODE 0
+#define MPACK_BUILDER 0
 
diff --git a/lib/pbdrv/pb-msg.c b/lib/pbdrv/pb-msg.c
index ab3f5b2..8cf020c 100644
--- a/lib/pbdrv/pb-msg.c
+++ b/lib/pbdrv/pb-msg.c
@@ -3,17 +3,26 @@
 #include "pb-msg.h"
 #include "pb-serial.h"
 #include "pb-mem.h"
+#include "mpack-config.h"
 
 pb_buf_t pb_msg_write(const pb_msg_t * msg) {
 	pb_buf_t buf = { 0 };
 	if (msg == NULL) return buf;
 
+	buf.data = pb_malloc(MPACK_BUFFER_SIZE);
+	if (buf.data == NULL) return buf;
+
 	mpack_writer_t writer;
-	mpack_writer_init_growable(&writer, &buf.data, &buf.size);
+	mpack_writer_init(&writer, buf.data, buf.size);
 
 	pb_ser_w(&writer, msg);
 
-	mpack_writer_destroy(&writer);
+	buf.size = mpack_writer_buffer_used(&writer);
+	if (mpack_writer_destroy(&writer) != mpack_ok) {
+		pb_free(buf.data);
+		buf.data = NULL;
+		buf.size = 0;
+	}
 	return buf;
 }
 
diff --git a/lib/pbdrv/pb-types.h b/lib/pbdrv/pb-types.h
index fab9028..4d085f9 100644
--- a/lib/pbdrv/pb-types.h
+++ b/lib/pbdrv/pb-types.h
@@ -75,9 +75,6 @@ typedef struct {
 	size_t _magic_size; //!< [META] size of \p magic
 } pb_cmd_magic_t;
 
-// DEBUG: remove
-void pb_null_err(const char * from);
-
 #ifdef __cplusplus
 }
 #endif
diff --git a/puzzle/dummy/CMakeLists.txt b/puzzle/dummy/CMakeLists.txt
index 0d5e1bd..6acc4c8 100644
--- a/puzzle/dummy/CMakeLists.txt
+++ b/puzzle/dummy/CMakeLists.txt
@@ -33,6 +33,7 @@ add_subdirectory(lib/FreeRTOS-Kernel)
 
 add_executable(main
 	main.cpp
+	mod.c
 	)
 
 target_link_libraries(main
diff --git a/puzzle/dummy/FreeRTOSConfig.h b/puzzle/dummy/FreeRTOSConfig.h
index f398db9..1cfdd71 100644
--- a/puzzle/dummy/FreeRTOSConfig.h
+++ b/puzzle/dummy/FreeRTOSConfig.h
@@ -20,7 +20,7 @@
 // #define configTOTAL_HEAP_SIZE (1024)
 #define configTOTAL_HEAP_SIZE (7 * 1024)
 #define configCHECK_FOR_STACK_OVERFLOW 0
-#define configUSE_MALLOC_FAILED_HOOK 1
+#define configUSE_MALLOC_FAILED_HOOK 0
 #define configUSE_DAEMON_TASK_STARTUP_HOOK 0
 #define configGENERATE_RUN_TIME_STATS 0
 #define configUSE_TRACE_FACILITY 0
diff --git a/puzzle/dummy/main.cpp b/puzzle/dummy/main.cpp
index 217ce94..41d8993 100644
--- a/puzzle/dummy/main.cpp
+++ b/puzzle/dummy/main.cpp
@@ -3,24 +3,8 @@
 #include <FreeRTOS.h>
 #include <task.h>
 
-#include "pb-mod.h"
-#include "pb-route.h"
-#include "pb-send.h"
-
-const char * PB_MOD_NAME = "dummy";
-const i2c_addr_t PB_MOD_ADDR = 0x69;
-
 void setup() {
 	Serial.begin(115200);
-
-	pb_buf_t buf = pb_send_magic_res();
-	Serial.print("response bytes:");
-	for (size_t i = 0; i < buf.size; i++) {
-		Serial.print(" ");
-		Serial.print(buf.data[i]);
-	}
-	Serial.print("\r\n");
-	pb_buf_free(&buf);
 }
 
 void loop() {
@@ -28,7 +12,3 @@ void loop() {
 	vTaskDelay(1000 / portTICK_PERIOD_MS);
 }
 
-void vApplicationMallocFailedHook(void) {
-	Serial.println("malloc failed!");
-}
-
diff --git a/puzzle/dummy/mod.c b/puzzle/dummy/mod.c
new file mode 100644
index 0000000..018ea68
--- /dev/null
+++ b/puzzle/dummy/mod.c
@@ -0,0 +1,5 @@
+#include "pb-mod.h"
+
+const char * PB_MOD_NAME = "dummy";
+const i2c_addr_t PB_MOD_ADDR = 0x69;
+