From 0de96b017a8f11c2abe1a256ba4d1524b58da4c2 Mon Sep 17 00:00:00 2001
From: Giovanni Di Sirio <gdisirio@gmail.com>
Date: Sun, 30 Jul 2023 16:36:04 +0000
Subject: [PATCH] STM32C031 demo compiles, ready for testing.

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@16353 27425a3e-05d8-49a3-a47f-9c15f0e5edd8
---
 demos/STM32/NIL-STM32C031C6-NUCLEO64/Makefile |  4 +-
 demos/STM32/NIL-STM32C031C6-NUCLEO64/main.c   | 72 ++++++++++++++++++-
 os/hal/ports/STM32/STM32C0xx/hal_lld.h        |  5 ++
 3 files changed, 78 insertions(+), 3 deletions(-)

diff --git a/demos/STM32/NIL-STM32C031C6-NUCLEO64/Makefile b/demos/STM32/NIL-STM32C031C6-NUCLEO64/Makefile
index 6603cfa20..7f01302fb 100644
--- a/demos/STM32/NIL-STM32C031C6-NUCLEO64/Makefile
+++ b/demos/STM32/NIL-STM32C031C6-NUCLEO64/Makefile
@@ -109,8 +109,8 @@ include $(CHIBIOS)/os/common/ports/ARMv6-M/compilers/GCC/mk/port.mk
 # Auto-build files in ./source recursively.
 include $(CHIBIOS)/tools/mk/autobuild.mk
 # Other files (optional).
-#include $(CHIBIOS)/os/test/test.mk
-#include $(CHIBIOS)/test/nil/nil_test.mk
+include $(CHIBIOS)/os/test/test.mk
+include $(CHIBIOS)/test/nil/nil_test.mk
 #include $(CHIBIOS)/test/oslib/oslib_test.mk
 
 # Define linker script file here
diff --git a/demos/STM32/NIL-STM32C031C6-NUCLEO64/main.c b/demos/STM32/NIL-STM32C031C6-NUCLEO64/main.c
index 7ef08096a..e6e8f1087 100644
--- a/demos/STM32/NIL-STM32C031C6-NUCLEO64/main.c
+++ b/demos/STM32/NIL-STM32C031C6-NUCLEO64/main.c
@@ -14,13 +14,83 @@
     limitations under the License.
 */
 
-#include <stdbool.h>
+#include "hal.h"
+#include "ch.h"
+#include "nil_test_root.h"
+//#include "oslib_test_root.h"
+
+/*
+ * Blinker thread #1.
+ */
+static THD_WORKING_AREA(waThread1, 128);
+static THD_FUNCTION(Thread1, arg) {
+
+  (void)arg;
+
+  while (true) {
+    while (true) {
+      palClearLine(LINE_LED_GREEN);
+      chThdSleepMilliseconds(500);
+      palSetLine(LINE_LED_GREEN);
+      chThdSleepMilliseconds(500);
+    }
+  }
+}
+
+/*
+ * Tester thread.
+ */
+THD_WORKING_AREA(waThread3, 256);
+THD_FUNCTION(Thread3, arg) {
+
+  (void)arg;
+
+  /*
+   * Activates the serial driver 1 using the driver default configuration.
+   * PA9 and PA10 are routed to USART1.
+   */
+  sdStart(&SD2, NULL);
+
+  /* Welcome message.*/
+  chnWrite(&SD2, (const uint8_t *)"Hello World!\r\n", 14);
+
+  /* Waiting for button push and activation of the test suite.*/
+  while (true) {
+    if (palReadLine(LINE_BUTTON) == PAL_LOW) {
+      test_execute((BaseSequentialStream *)&SD2, &nil_test_suite);
+      //test_execute((BaseSequentialStream *)&SD2, &oslib_test_suite);
+    }
+    chThdSleepMilliseconds(500);
+  }
+}
+
+/*
+ * Threads creation table, one entry per thread.
+ */
+THD_TABLE_BEGIN
+  THD_TABLE_THREAD(0, "blinker1",     waThread1,       Thread1,      NULL)
+  THD_TABLE_THREAD(4, "tester",       waThread3,       Thread3,      NULL)
+THD_TABLE_END
 
 /*
  * Application entry point.
  */
 int main(void) {
 
+  /*
+   * System initializations.
+   * - HAL initialization, this also initializes the configured device drivers
+   *   and performs the board-specific initializations.
+   * - Kernel initialization, the main() function becomes a thread and the
+   *   RTOS is active.
+   */
+  halInit();
+  chSysInit();
+
+  /* This is now the idle thread loop, you may perform here a low priority
+     task but you must never try to sleep or wait in this loop. Note that
+     this tasks runs at the lowest priority level so any instruction added
+     here will be executed after all other tasks have been started.*/
   while (true) {
   }
 }
diff --git a/os/hal/ports/STM32/STM32C0xx/hal_lld.h b/os/hal/ports/STM32/STM32C0xx/hal_lld.h
index e188a5c57..49cd5dbf2 100644
--- a/os/hal/ports/STM32/STM32C0xx/hal_lld.h
+++ b/os/hal/ports/STM32/STM32C0xx/hal_lld.h
@@ -870,6 +870,11 @@
   #error "invalid source selected for USART1 clock"
 #endif
 
+/**
+ * @brief   USART2 clock frequency.
+ */
+#define STM32_USART2CLK             hal_lld_get_clock_point(CLK_PCLK)
+
 /**
  * @brief   I2C1 clock frequency.
  */