The "Practice60" Board, Blue Pill powered (#4407)

* Starting point for blue pill based practice60

* Changes

* add

* try raw bin no botloader

* swap back to bootloader version

* edit

* Remove debug LED flash

* Disable JTAG to open up B3 and B4

* Add led backlight support (no breathing yet)

* Update matrix for correctness

* RGB Underglow working in a very simple state

* not as bright

* Move to handwired

* revert ChibiOS_Test changes

* Changes based on PR comments

* Address PR comments v2

* Move files

keyboards/handwired/practice60/practice60.c

@@ -0,0 +1,32 @@
+
+#include "practice60.h"
+
+#include "ch.h"
+#include "hal.h"
+
+#include "underglow.h"
+#include "print.h"
+#include "debug.h"
+#include "util.h"
+
+/* generic STM32F103C8T6 board */
+#ifdef BOARD_GENERIC_STM32_F103
+#define LED_ON()    do { palClearPad(GPIOC, 13) ;} while (0)
+#define LED_OFF()   do { palSetPad(GPIOC, 13); } while (0)
+#define LED_TGL()   do { palTogglePad(GPIOC, 13); } while (0)
+#endif
+
+void matrix_init_kb(void){
+      /* MOSI pin*/
+    palSetPadMode(GPIOB, 15, PAL_MODE_STM32_ALTERNATE_PUSHPULL);
+
+    LED_ON();
+    palSetPad(GPIOA, 8);
+    wait_ms(500);
+    palClearPad(GPIOA, 8);
+    LED_OFF();
+
+    leds_init();
+
+
+}