// ucoolib - Microcontroller object oriented library. {{{ // // Copyright (C) 2013 Nicolas Schodet // // APBTeam: // Web: http://apbteam.org/ // Email: team AT apbteam DOT org // // This program is free software; you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation; either version 2 of the License, or // (at your option) any later version. // // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License // along with this program; if not, write to the Free Software // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. // // }}} #include "ucoolib/hal/spi/spi_soft.hh" #include "ucoolib/hal/gpio/gpio.hh" #include "ucoolib/utils/delay.hh" #include "ucoolib/arch/arch.hh" #include "ucoolib/base/test/test.hh" #include #include #include int main (int argc, const char **argv) { ucoo::arch_init (argc, argv); ucoo::Stream &ts = ucoo::test_stream (); // Use connection to LIS302DL device on discovery board. rcc_peripheral_enable_clock (&RCC_AHB1ENR, RCC_AHB1ENR_IOPAEN | RCC_AHB1ENR_IOPEEN); ucoo::Gpio ss (GPIOE, 3); ss.set (); gpio_mode_setup (GPIOE, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, GPIO3); ucoo::Gpio sck (GPIOA, 5), mosi (GPIOA, 7), miso (GPIOA, 6); ucoo::SpiSoftMaster spi (sck, mosi, miso, 1000000, ucoo::SPI_MODE_3); // Loop with simple IU. char buf[64]; unsigned int r; int8_t x, y, z; while (1) { ucoo::delay_ms (200); // Read X, Y, Z. ss.reset (); spi.send (0xe9); x = spi.recv (); spi.recv (); y = spi.recv (); spi.recv (); z = spi.recv (); ss.set (); ucoo::delay_ns (100); r = snprintf (buf, sizeof (buf), "x: %4d, y: %4d, z: %4d\r", x, y, z); r = std::min (sizeof (buf) - 1, r); ts.write (buf, r); // Simple UI. while (ts.poll ()) { char c = ts.getc (); switch (c) { case '?': static const char help[] = "\n? - help\n" "w - who am I\n" "o - turn on\n" "f - turn off\n"; ts.write (help, sizeof (help)); break; case 'w': { // Read Who am I register. ss.reset (); spi.send (0x8f); char rsp = spi.recv (); ss.set (); ucoo::delay_ns (100); // Report result. r = snprintf (buf, sizeof (buf), "\nI am 0x%02x\n", static_cast (rsp)); r = std::min (sizeof (buf) - 1, r); ts.write (buf, r); } break; case 'o': case 'f': { char cmd[] = { 0x20, c == 'o' ? 0x47 : 0x07 }; ss.reset (); spi.send (cmd, sizeof (cmd)); ss.set (); ucoo::delay_ns (100); } break; } } } }