Fix i2c and spi to compile for Netduino Plus 2
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53775026e7
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f70630c58f
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@ -17,6 +17,8 @@
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#define MICROPY_HW_ENABLE_TIMER (1)
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#define MICROPY_HW_ENABLE_SERVO (1)
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#define MICROPY_HW_ENABLE_DAC (0)
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#define MICROPU_HW_ENABLE_I2C1 (0)
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#define MICROPU_HW_ENABLE_SPI1 (0)
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// USRSW is pulled low. Pressing the button makes the input go high.
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#define MICROPY_HW_USRSW_PIN (pin_B11)
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21
stmhal/i2c.c
21
stmhal/i2c.c
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@ -13,6 +13,10 @@
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#include "genhdr/pins.h"
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#include "i2c.h"
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#if !defined(MICROPU_HW_ENABLE_I2C1)
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#define MICROPY_HW_ENABLE_I2C1 (1)
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#endif
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I2C_HandleTypeDef I2CHandle1 = {.Instance = NULL};
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I2C_HandleTypeDef I2CHandle2 = {.Instance = NULL};
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@ -32,6 +36,7 @@ void i2c_init(I2C_HandleTypeDef *i2c) {
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GPIO_InitStructure.Pull = GPIO_NOPULL; // have external pull-up resistors on both lines
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const pin_obj_t *pins[2];
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#if MICROPY_HW_ENABLE_I2C1
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if (i2c == &I2CHandle1) {
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// X-skin: X9=PB6=SCL, X10=PB7=SDA
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pins[0] = &pin_B6;
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@ -39,7 +44,9 @@ void i2c_init(I2C_HandleTypeDef *i2c) {
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GPIO_InitStructure.Alternate = GPIO_AF4_I2C1;
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// enable the I2C clock
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__I2C1_CLK_ENABLE();
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} else {
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} else
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#endif
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if (i2c == &I2CHandle2) {
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// Y-skin: Y9=PB10=SCL, Y10=PB11=SDA
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pins[0] = &pin_B10;
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pins[1] = &pin_B11;
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@ -54,13 +61,6 @@ void i2c_init(I2C_HandleTypeDef *i2c) {
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HAL_GPIO_Init(pins[i]->gpio, &GPIO_InitStructure);
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}
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// enable the I2C clock
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if (i2c == &I2CHandle1) {
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__I2C1_CLK_ENABLE();
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} else {
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__I2C2_CLK_ENABLE();
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}
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// init the I2C device
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i2c->Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
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i2c->Init.ClockSpeed = 400000;
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@ -88,7 +88,10 @@ typedef struct _pyb_i2c_obj_t {
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I2C_HandleTypeDef *i2c;
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} pyb_i2c_obj_t;
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STATIC const pyb_i2c_obj_t pyb_i2c_obj[PYB_NUM_I2C] = {{{&pyb_i2c_type}, &I2CHandle1}, {{&pyb_i2c_type}, &I2CHandle2}};
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STATIC const pyb_i2c_obj_t pyb_i2c_obj[PYB_NUM_I2C] = {
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{{&pyb_i2c_type}, &I2CHandle1},
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{{&pyb_i2c_type}, &I2CHandle2}
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};
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STATIC mp_obj_t pyb_i2c_make_new(mp_obj_t type_in, uint n_args, uint n_kw, const mp_obj_t *args) {
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// check arguments
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39
stmhal/spi.c
39
stmhal/spi.c
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@ -13,11 +13,13 @@
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#include "genhdr/pins.h"
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#include "spi.h"
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#if !defined(MICROPU_HW_ENABLE_SPI1)
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#define MICROPY_HW_ENABLE_SPI1 (1)
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#endif
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SPI_HandleTypeDef SPIHandle1 = {.Instance = NULL};
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SPI_HandleTypeDef SPIHandle2 = {.Instance = NULL};
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#if MICROPY_HW_ENABLE_SPI3
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SPI_HandleTypeDef SPIHandle3 = {.Instance = NULL};
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#endif
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void spi_init0(void) {
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// reset the SPI handles
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@ -25,10 +27,8 @@ void spi_init0(void) {
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SPIHandle1.Instance = SPI1;
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memset(&SPIHandle2, 0, sizeof(SPI_HandleTypeDef));
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SPIHandle2.Instance = SPI2;
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#if MICROPY_HW_ENABLE_SPI3
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memset(&SPIHandle3, 0, sizeof(SPI_HandleTypeDef));
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SPIHandle3.Instance = SPI3;
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#endif
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}
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// TODO allow to take a list of pins to use
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@ -40,6 +40,7 @@ void spi_init(SPI_HandleTypeDef *spi) {
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GPIO_InitStructure.Pull = GPIO_PULLUP; // ST examples use PULLUP
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const pin_obj_t *pins[4];
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#if MICROPY_HW_ENABLE_SPI1
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if (spi->Instance == SPI1) {
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// X-skin: X5=PA4=SPI1_NSS, X6=PA5=SPI1_SCK, X7=PA6=SPI1_MISO, X8=PA7=SPI1_MOSI
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pins[0] = &pin_A4;
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@ -47,25 +48,28 @@ void spi_init(SPI_HandleTypeDef *spi) {
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pins[2] = &pin_A6;
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pins[3] = &pin_A7;
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GPIO_InitStructure.Alternate = GPIO_AF5_SPI1;
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} else if (spi->Instance == SPI2) {
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} else
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#endif
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if (spi->Instance == SPI2) {
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// Y-skin: Y5=PB12=SPI2_NSS, Y6=PB13=SPI2_SCK, Y7=PB14=SPI2_MISO, Y8=PB15=SPI2_MOSI
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pins[0] = &pin_B12;
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pins[1] = &pin_B13;
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pins[2] = &pin_B14;
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pins[3] = &pin_B15;
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GPIO_InitStructure.Alternate = GPIO_AF5_SPI2;
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} else
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#if MICROPY_HW_ENABLE_SPI3
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} else if (spi->Instance == SPI3) {
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if (spi->Instance == SPI3) {
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pins[0] = &pin_A4;
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pins[1] = &pin_B3;
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pins[2] = &pin_B4;
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pins[3] = &pin_B5;
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GPIO_InitStructure.Alternate = GPIO_AF6_SPI3;
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} else
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#endif
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} else {
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{
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// SPI does not exist for this board
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printf("HardwareError: invalid SPI\n");
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return;
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nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, "SPI bus does not exist"));
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}
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for (uint i = 0; i < 4; i++) {
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@ -78,10 +82,8 @@ void spi_init(SPI_HandleTypeDef *spi) {
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__SPI1_CLK_ENABLE();
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} else if (spi->Instance == SPI2) {
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__SPI2_CLK_ENABLE();
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#if MICROPY_HW_ENABLE_SPI3
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} else {
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} else if (spi->Instance == SPI3) {
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__SPI3_CLK_ENABLE();
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#endif
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}
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// init the I2C device
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@ -100,24 +102,25 @@ void spi_deinit(SPI_HandleTypeDef *spi) {
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__SPI1_CLK_DISABLE();
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} else if (spi->Instance == SPI2) {
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__SPI2_CLK_DISABLE();
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#if MICROPY_HW_ENABLE_SPI3
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} else {
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} else if (spi->Instance == SPI3) {
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__SPI3_CLK_DISABLE();
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#endif
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}
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}
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/******************************************************************************/
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/* Micro Python bindings */
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#define PYB_SPI_NUM (2)
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#define PYB_NUM_SPI (2)
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typedef struct _pyb_spi_obj_t {
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mp_obj_base_t base;
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SPI_HandleTypeDef *spi;
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} pyb_spi_obj_t;
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STATIC const pyb_spi_obj_t pyb_spi_obj[PYB_SPI_NUM] = {{{&pyb_spi_type}, &SPIHandle1}, {{&pyb_spi_type}, &SPIHandle2}};
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STATIC const pyb_spi_obj_t pyb_spi_obj[PYB_NUM_SPI] = {
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{{&pyb_spi_type}, &SPIHandle1},
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{{&pyb_spi_type}, &SPIHandle2}
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};
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STATIC void pyb_spi_print(void (*print)(void *env, const char *fmt, ...), void *env, mp_obj_t self_in, mp_print_kind_t kind) {
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pyb_spi_obj_t *self = self_in;
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@ -220,7 +223,7 @@ STATIC mp_obj_t pyb_spi_make_new(mp_obj_t type_in, uint n_args, uint n_kw, const
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machine_int_t spi_id = mp_obj_get_int(args[0]) - 1;
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// check SPI number
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if (!(0 <= spi_id && spi_id < PYB_SPI_NUM)) {
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if (!(0 <= spi_id && spi_id < PYB_NUM_SPI)) {
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nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "SPI bus %d does not exist", spi_id + 1));
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}
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