La Suno / Mbed 2 deprecated afero_poc15_180413

Added a GPIO to power on/off for external I2C sensor(s) (with LEDs)

Dependencies:   UniGraphic mbed vt100

18-Jun-2018 外部センサの電源オン・オフ機能は下位互換の為に無効になっていました。 この版で再度有効にしました。

af_utils/mbedSPI.cpp@1:8d65cfc3a2e2, 2018-06-18 (annotated)

Committer:
Rhyme
Date:
Mon Jun 18 01:56:00 2018 +0000
Revision:
1:8d65cfc3a2e2
Parent:
0:846e2321c637 
External sensor power on/off function enabled. (Previously disabled)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Rhyme 0:846e2321c637 1 #include "mbed.h"
Rhyme 0:846e2321c637 2 #include "vt100.h"
Rhyme 0:846e2321c637 3 #include "afSPI.h"
Rhyme 0:846e2321c637 4 #include "mbedSPI.h"
Rhyme 0:846e2321c637 5
Rhyme 0:846e2321c637 6 #if defined (TARGET_KL25Z) || defined (TARGET_TEENSY3_1)
Rhyme 0:846e2321c637 7 #ifndef SPI0_C1
Rhyme 0:846e2321c637 8 #define SPI0_C1 (*(uint8_t *)0x40076000)
Rhyme 0:846e2321c637 9 #endif
Rhyme 0:846e2321c637 10 #endif
Rhyme 0:846e2321c637 11 /*
Rhyme 0:846e2321c637 12 class mbedSPI : public afSPI {
Rhyme 0:846e2321c637 13 public:
Rhyme 0:846e2321c637 14 mbedSPI(PinName mosi, PinName miso, PinName sckl, PinName cs) ;
Rhyme 0:846e2321c637 15 virtual void begin() ;
Rhyme 0:846e2321c637 16 virtual void beginSPI() ;
Rhyme 0:846e2321c637 17 virtual void endSPI() ;
Rhyme 0:846e2321c637 18 virtual void transfer(char *bytes,int len) ;
Rhyme 0:846e2321c637 19 private:
Rhyme 0:846e2321c637 20 SPI _spi ;
Rhyme 0:846e2321c637 21 DigitalOut _cs ;
Rhyme 0:846e2321c637 22 } ;
Rhyme 0:846e2321c637 23 */
Rhyme 0:846e2321c637 24
Rhyme 0:846e2321c637 25 mbedSPI::mbedSPI(PinName mosi, PinName miso, PinName sckl, PinName cs) :
Rhyme 0:846e2321c637 26 _spi(mosi, miso, sckl), _cs(cs, 1)
Rhyme 0:846e2321c637 27 {
Rhyme 0:846e2321c637 28 _spi.format(8, 0) ;
Rhyme 0:846e2321c637 29 _spi.frequency(1000000) ; /* 1MHz */
Rhyme 0:846e2321c637 30
Rhyme 0:846e2321c637 31 #if defined (TARGET_KL25Z) || defined (TARGET_TEENSY3_1)
Rhyme 0:846e2321c637 32 #ifndef SPI0_C1
Rhyme 0:846e2321c637 33 #define SPI0_C1 (*(uint8_t *)0x40076000)
Rhyme 0:846e2321c637 34 #endif
Rhyme 0:846e2321c637 35 // SPI0_C1 |= 0x01 ; /* LSB First */
Rhyme 0:846e2321c637 36 // SPI0_C1 &= 0xFE ; /* MSB First */
Rhyme 0:846e2321c637 37 #endif
Rhyme 0:846e2321c637 38
Rhyme 0:846e2321c637 39 }
Rhyme 0:846e2321c637 40
Rhyme 0:846e2321c637 41 void mbedSPI::begin(void)
Rhyme 0:846e2321c637 42 {
Rhyme 0:846e2321c637 43 }
Rhyme 0:846e2321c637 44
Rhyme 0:846e2321c637 45 void mbedSPI::beginSPI()
Rhyme 0:846e2321c637 46 {
Rhyme 0:846e2321c637 47 // printf("+") ; fflush(stdout) ;
Rhyme 0:846e2321c637 48 _cs = 0 ;
Rhyme 0:846e2321c637 49 SPI0_C1 |= 0x01 ; /* LSB First */
Rhyme 0:846e2321c637 50 wait_us(1) ;
Rhyme 0:846e2321c637 51 }
Rhyme 0:846e2321c637 52
Rhyme 0:846e2321c637 53 void mbedSPI::endSPI()
Rhyme 0:846e2321c637 54 {
Rhyme 0:846e2321c637 55 _cs = 1 ;
Rhyme 0:846e2321c637 56 SPI0_C1 &= 0xFE ; /* MSB First */
Rhyme 0:846e2321c637 57 wait_us(1) ;
Rhyme 0:846e2321c637 58 // printf("-") ; fflush(stdout) ;
Rhyme 0:846e2321c637 59 }
Rhyme 0:846e2321c637 60
Rhyme 0:846e2321c637 61 /**
Rhyme 0:846e2321c637 62 * on 17-Jan-2018 disable/enable irq added
Rhyme 0:846e2321c637 63 * before and after of each _spi.writes
Rhyme 0:846e2321c637 64 */
Rhyme 0:846e2321c637 65 void mbedSPI::transfer(char *bytes, int len)
Rhyme 0:846e2321c637 66 {
Rhyme 0:846e2321c637 67 int i ;
Rhyme 0:846e2321c637 68 for (i = 0 ; i < len ; i++ ) {
Rhyme 0:846e2321c637 69 __disable_irq() ; // Disable Interrupts
Rhyme 0:846e2321c637 70 bytes[i] = _spi.write(bytes[i]) ;
Rhyme 0:846e2321c637 71 __enable_irq() ; // Enable Interrupts
Rhyme 0:846e2321c637 72 }
Rhyme 0:846e2321c637 73 }
Rhyme 0:846e2321c637 74