David Rimer
Replacement for regular GPIO (DigitalIn, DigitalOut, DigitalInOut) classes which has superior speed.
Revision 20:ed72895a2402, committed 2016-05-17
- Comitter:
- Sissors
- Date:
- Tue May 17 20:06:23 2016 +0000
- Parent:
- 19:89d6ae484a35
- Child:
- 21:a1dfa6c65400
- Commit message:
- Initial version for the NRF51822. I am reasonably sure it works, but with lacking an LED on my board or a logic analyzer it might have issues :).
Changed in this revision
| Devices/FastIO_NRF51822.h | Show annotated file Show diff for this revision Revisions of this file |
| FastIO.h | Show annotated file Show diff for this revision Revisions of this file |
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/Devices/FastIO_NRF51822.h Tue May 17 20:06:23 2016 +0000
@@ -0,0 +1,28 @@
+#ifdef TARGET_MCU_NRF51822
+
+#include "mbed.h"
+#include "gpio_api.h"
+
+typedef struct {
+ uint32_t mask;
+} fastio_vars;
+
+#define PINMASK (1 << pin)
+
+
+#define INIT_PIN container.mask = PINMASK; NRF_GPIO->PIN_CNF[pin] = (GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos) \
+ | (GPIO_PIN_CNF_DRIVE_S0S1 << GPIO_PIN_CNF_DRIVE_Pos) \
+ | (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) \
+ | (NRF_GPIO->PIN_CNF[pin] & 0x01);
+#define DESTROY_PIN
+
+#define SET_DIR_INPUT NRF_GPIO->DIRCLR = PINMASK
+#define SET_DIR_OUTPUT NRF_GPIO->DIRSET = PINMASK
+#define SET_MODE(pull) NRF_GPIO->PIN_CNF[pin] = (NRF_GPIO->PIN_CNF[pin] & (~GPIO_PIN_CNF_PULL_Msk)) | pull
+
+#define WRITE_PIN_SET NRF_GPIO->OUTSET = PINMASK
+#define WRITE_PIN_CLR NRF_GPIO->OUTCLR = PINMASK
+
+#define READ_PIN ((NRF_GPIO->IN & container.mask) ? 1 : 0)
+
+#endif
\ No newline at end of file
--- a/FastIO.h Fri Feb 05 14:47:23 2016 +0000 +++ b/FastIO.h Tue May 17 20:06:23 2016 +0000 @@ -12,6 +12,7 @@ #include "FastIO_LPC11XX.h" #include "FastIO_EFM32.h" #include "FastIO_LPC43XX.h" +#include "FastIO_NRF51822.h" #ifndef INIT_PIN #warning Target is not supported by FastIO