got the gyro and adc (I think) working
diff --git a/bbb_cape/src/cape/util.h b/bbb_cape/src/cape/util.h
index 02e72fb..d19a7e9 100644
--- a/bbb_cape/src/cape/util.h
+++ b/bbb_cape/src/cape/util.h
@@ -1,6 +1,8 @@
#ifndef CAPE_UTIL_H_
#define CAPE_UTIL_H_
+#include <stdint.h>
+
#include <STM32F2XX.h>
#define ALIAS_WEAK(f) __attribute__ ((weak, alias (#f)))
@@ -51,10 +53,24 @@
SET_BITS(port->OSPEEDR, 2, speed, pin);
}
+static inline void gpio_setup_in(GPIO_TypeDef *port, int pin) {
+ SET_BITS(port->MODER, 2, 0 /* input */, pin);
+}
+
// exti is which EXTI line to set
// port is 0 for A, 1 for B, etc
static inline void EXTI_set(int exti, int port) {
SET_BITS(SYSCFG->EXTICR[exti / 4], 4, port, exti % 4);
}
+static inline void gpio_on(GPIO_TypeDef *port, int pin) {
+ port->BSRRL = 1 << pin;
+}
+
+static inline void gpio_off(GPIO_TypeDef *port, int pin) {
+ port->BSRRH = 1 << pin;
+}
+
+void led_write(uint32_t value, int bits);
+
#endif // CAPE_UTIL_H_