specchioriflesso/USB_Host_Shield_2.0
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Added support for Adafruit NRF52840 Feather Express

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Added definitions for Adafruit NRF52840 Feather Express based on the
existing RBL_NRF51822 variant. The PS5 controller and USB_desc examples
have been tested and seem to work fine with a knockoff Duinofun USBmini
2.0 shield (after accounting for the mislabled pins on this hardware,
and cutting the USB VDD trace to wire it to 5V).
This commit is contained in:
Joseph Duchesne 2021-03-22 09:28:22 -04:00
parent 37c7c5155a
commit a56613ae66
4 changed files with 71 additions and 2 deletions
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2
SPP.h
View file

@ -114,7 +114,7 @@ public:
*/
size_t write(const uint8_t* data, size_t size);
/** Pull in write(const char *str) from Print */
#if !defined(RBL_NRF51822)
#if !defined(RBL_NRF51822) && !defined(NRF52_SERIES)
using Print::write;
#endif
#else

62
avrpins.h
View file

@ -1294,6 +1294,68 @@ MAKE_PIN(P19, GPIOC, GPIO_PIN_0); // A5
#undef MAKE_PIN
#elif defined(ARDUINO_NRF52840_FEATHER)
#define MAKE_PIN(className, pin) \
class className { \
public: \
static void Set() { \
nrf_gpio_pin_set(pin); \
} \
static void Clear() { \
nrf_gpio_pin_clear(pin); \
} \
static void SetDirRead() { \
nrf_gpio_cfg_input(pin, NRF_GPIO_PIN_NOPULL); \
} \
static void SetDirWrite() { \
nrf_gpio_cfg_output(pin); \
} \
static uint8_t IsSet() { \
return (uint8_t)nrf_gpio_pin_read(pin); \
} \
};
// Based on variants/feather_nrf52840_express/variant.cpp
// g_ADigitalPinMap ould be used directly, but it would be slower
MAKE_PIN(P0, (25));
MAKE_PIN(P1, (24));
MAKE_PIN(P2, (10));
MAKE_PIN(P3, (47));
MAKE_PIN(P4, (42));
MAKE_PIN(P5, (40));
MAKE_PIN(P6, (7));
MAKE_PIN(P7, (34));
MAKE_PIN(P8, (16));
MAKE_PIN(P9, (26));
MAKE_PIN(P10, (27));
MAKE_PIN(P11, (6));
MAKE_PIN(P12, (8));
MAKE_PIN(P13, (41));
MAKE_PIN(P14, (4));
MAKE_PIN(P15, (5));
MAKE_PIN(P17, (30));
MAKE_PIN(P18, (28));
MAKE_PIN(P16, (2));
MAKE_PIN(P19, (3));
MAKE_PIN(P20, (29));
MAKE_PIN(P21, (31));
MAKE_PIN(P22, (12));
MAKE_PIN(P23, (11));
MAKE_PIN(P24, (15));
MAKE_PIN(P25, (13));
MAKE_PIN(P26, (14));
MAKE_PIN(P27, (19));
MAKE_PIN(P28, (20));
MAKE_PIN(P29, (17));
MAKE_PIN(P30, (22));
MAKE_PIN(P31, (23));
MAKE_PIN(P32, (21));
MAKE_PIN(P33, (9));
#undef MAKE_PIN
#else
#error "Please define board in avrpins.h"

5
settings.h
View file

@ -157,6 +157,11 @@ e-mail : support@circuitsathome.com
#define SPI SPI_Master
#define MFK_CASTUINT8T (uint8_t) // RBLs return type for sizeof needs casting to uint8_t
#endif
#ifdef NRF52_SERIES
#include <SPI.h>
#include <nrf_gpio.h>
#define MFK_CASTUINT8T (uint8_t) // NRF return type for sizeof needs casting to uint8_t
#endif
#if defined(__PIC32MX__) || defined(__PIC32MZ__)
#include <../../../../hardware/pic32/libraries/SPI/SPI.h> // Hack to use the SPI library
#endif

4
usbhost.h
View file

@ -70,7 +70,7 @@ public:
#else
USB_SPI.setClockDivider(SPI_CLOCK_DIV2); // This will set the SPI frequency to 8MHz - it could be higher, but it is not supported in the old API
#endif
#elif !defined(RBL_NRF51822)
#elif !defined(RBL_NRF51822) && !defined(NRF52_SERIES)
USB_SPI.setClockDivider(4); // Set speed to 84MHz/4=21MHz - the MAX3421E can handle up to 26MHz
#endif
}
@ -120,6 +120,8 @@ typedef SPi< P16, P18, P17, P10 > spi;
typedef SPi< P14, P13, P12, P15 > spi;
#elif defined(ESP32)
typedef SPi< P18, P23, P19, P5 > spi;
#elif defined(ARDUINO_NRF52840_FEATHER)
typedef SPi< P26, P25, P24, P5 > spi;
#else
#error "No SPI entry in usbhost.h"
#endif