Merge pull request #3690 from hathach/claude/board-test-idle-park

hil: park boards with idle board_test instead of erasing flash

1 files changed, 30 insertions, 4 deletions

diff --git a/examples/device/board_test/src/main.c b/examples/device/board_test/src/main.c
index 71e7e1da7..3d8cf9979 100644
--- a/examples/device/board_test/src/main.c
+++ b/examples/device/board_test/src/main.c
@@ -54,6 +54,11 @@ void tusb_time_delay_ms_api(uint32_t ms) {
 //
 //--------------------------------------------------------------------+
 
+// CI_BUILD (defined for all CI builds, see hw/bsp/family_support.cmake) skips the
+// blink/echo loop below: after HIL tests, this firmware is flashed to park the
+// board in a quiet, low-power idle state (no USB, LED, or UART activity).
+#ifndef CI_BUILD
+
 // Task parameter type: ULONG for ThreadX, void* for FreeRTOS and noos
 #if CFG_TUSB_OS == OPT_OS_THREADX
   #define RTOS_PARAM ULONG
@@ -107,19 +112,37 @@ static void board_test_loop(RTOS_PARAM param) {
   }
 }
 
+#endif // CI_BUILD
+
 int main(void) {
+#ifdef CI_BUILD
+  // Park the board in a quiet, low-power idle loop. board_init() is intentionally
+  // skipped: no clocks, peripherals, USB, LED, or UART are brought up, so the MCU
+  // just idles after CI flashes this over a board's previous test firmware.
+  while (1) {
+    #if defined(ESP_PLATFORM)
+    vTaskDelay(portMAX_DELAY); // ESP runs FreeRTOS: yield this task indefinitely
+    #elif defined(__ARM_ARCH) || defined(__arm__)
+    __asm volatile("wfe");     // Cortex-M: sleep until an event
+    #else
+    // other architectures (e.g. RISC-V): spin
+    #endif
+  }
+  // no return: the loop never exits (an unreachable return trips IAR's Pe111)
+#else
   board_init();
   board_led_write(true);
 
-#if CFG_TUSB_OS == OPT_OS_FREERTOS
+  #if CFG_TUSB_OS == OPT_OS_FREERTOS
   freertos_init();
-#elif CFG_TUSB_OS == OPT_OS_THREADX
+  #elif CFG_TUSB_OS == OPT_OS_THREADX
   tx_kernel_enter();
-#else
+  #else
   board_test_loop(NULL);
-#endif
+  #endif
 
   return 0;
+#endif
 }
 
 #ifdef ESP_PLATFORM
@@ -128,6 +151,7 @@ void app_main(void) {
 }
 #endif
 
+#ifndef CI_BUILD
 //--------------------------------------------------------------------+
 // FreeRTOS
 //--------------------------------------------------------------------+
@@ -173,3 +197,5 @@ void tx_application_define(void *first_unused_memory) {
                    1, 1, TX_NO_TIME_SLICE, TX_AUTO_START);
 }
 #endif
+
+#endif // CI_BUILD