blinking LEDs via stlink also works

diff --git a/src/test_sg.c b/src/test_sg.c
index 19a2ef510e0a156d4d7972e35220a80c7776f6df..899efc3a9dd3a25ac068554a32c6b0806be0aaf6 100644 (file)
--- a/src/test_sg.c
+++ b/src/test_sg.c
@@ -78,7 +78,7 @@ int main(int argc, char *argv[]) {
        stlink_read_mem32(sl, 0x4001100c, 4);
        DD(sl, "GPIOC_ODR = 0x%08x", read_uint32(sl->q_buf, 0));
 #endif
-#if 0
+#if 1
        // happy new year 2011: let blink all the leds
        // see "RM0041 Reference manual - STM32F100xx advanced ARM-based 32-bit MCUs"
 
@@ -89,23 +89,23 @@ int main(int argc, char *argv[]) {
 #define LED_GREEN      (1<<9) // pin 9
        stlink_read_mem32(sl, GPIOC_CRH, 4);
        uint32_t io_conf = read_uint32(sl->q_buf, 0);
-       DD(sl, "GPIOC_CRH = 0x%08x", io_conf);
+       DLOG("GPIOC_CRH = 0x%08x\n", io_conf);
 
        // set: general purpose output push-pull, output mode, max speed 10 MHz.
        write_uint32(sl->q_buf, 0x44444411);
        stlink_write_mem32(sl, GPIOC_CRH, 4);
 
-       clear_buf(sl);
+       memset(sl->q_buf, 0, sizeof(sl->q_buf));
        for (int i = 0; i < 100; i++) {
                write_uint32(sl->q_buf, LED_BLUE | LED_GREEN);
                stlink_write_mem32(sl, GPIOC_ODR, 4);
                /* stlink_read_mem32(sl, 0x4001100c, 4); */
                /* DD(sl, "GPIOC_ODR = 0x%08x", read_uint32(sl->q_buf, 0)); */
-               delay(100);
+               usleep(100 * 1000);
 
-               clear_buf(sl);
+               memset(sl->q_buf, 0, sizeof(sl->q_buf));
                stlink_write_mem32(sl, GPIOC_ODR, 4); // PC lo
-               delay(100);
+        usleep(100 * 1000);
        }
        write_uint32(sl->q_buf, io_conf); // set old state
 
@@ -126,7 +126,7 @@ int main(int argc, char *argv[]) {
        stlink_read_mem32(sl, 0x08000c00, 256);
        stlink_read_mem32(sl, 0x08000c00, 256);
 #endif
-#if 1
+#if 0
        // sram 0x20000000 8kB
        fputs("\n++++++++++ read/write 8bit, sram at 0x2000 0000 ++++++++++++++++\n\n", stderr);
     memset(sl->q_buf, 0, sizeof(sl->q_buf));