diff options
Diffstat (limited to 'laser-tag software/main.c')
| -rwxr-xr-x | laser-tag software/main.c | 158 |
1 files changed, 93 insertions, 65 deletions
diff --git a/laser-tag software/main.c b/laser-tag software/main.c index 383ec91..3cfcf45 100755 --- a/laser-tag software/main.c +++ b/laser-tag software/main.c @@ -28,37 +28,90 @@ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ -/////////////////////////////////////////////////////////////////////////////// -// Includes -/////////////////////////////////////////////////////////////////////////////// -// SDK Included Files -#include "board.h" -#include "fsl_lptmr_driver.h" -#include "fsl_debug_console.h" +#include "fsl_clock_manager.h" #include "fsl_dac_driver.h" +#include "fsl_dma_driver.h" +#include "fsl_gpio_driver.h" +#include "fsl_lptmr_driver.h" #include "fsl_os_abstraction.h" +#include "fsl_pit_driver.h" +#include "fsl_smc_hal.h" -//////////////////////////////////////////////////////////////////////////////// -// Definitions -//////////////////////////////////////////////////////////////////////////////// -// Timer period: 500000uS -#define TMR_PERIOD 500000U -#if defined(TWR_KV46F150M) -#define LPTMR0_IDX LPTMR_IDX -#endif +//////////////////////////// +// A bunch of config structs +/* Configuration for enter VLPR mode. Core clock = 2MHz. */ +static const clock_manager_user_config_t g_defaultClockConfigVlpr = { + .mcgliteConfig = + { + .mcglite_mode = kMcgliteModeLirc8M, // Work in LIRC_8M mode. + .irclkEnable = true, // MCGIRCLK enable. + .irclkEnableInStop = false, // MCGIRCLK disable in STOP mode. + .ircs = kMcgliteLircSel2M, // Select LIRC_2M. + .fcrdiv = kMcgliteLircDivBy1, // FCRDIV is 0. + .lircDiv2 = kMcgliteLircDivBy1, // LIRC_DIV2 is 0. + .hircEnableInNotHircMode = false, // HIRC disable. + }, + .simConfig = + { + .er32kSrc = kClockEr32kSrcOsc0, // ERCLK32K selection, use OSC. + .outdiv1 = 0U, + .outdiv4 = 1U, + }, + .oscerConfig = + { + .enable = false, // OSCERCLK disable. + .enableInStop = false, // OSCERCLK disable in STOP mode. + } +}; -const gpio_output_pin_user_config_t lcdBacklight = { +/* Configuration for enter RUN mode. Core clock = 48MHz. */ +static const clock_manager_user_config_t g_defaultClockConfigRun = { + .mcgliteConfig = + { + .mcglite_mode = kMcgliteModeHirc48M, // Work in HIRC mode. + .irclkEnable = false, // MCGIRCLK disable. + .irclkEnableInStop = false, // MCGIRCLK disable in STOP mode. + .ircs = kMcgliteLircSel2M, // Select LIRC_2M. + .fcrdiv = kMcgliteLircDivBy1, // FCRDIV is 0. + .lircDiv2 = kMcgliteLircDivBy1, // LIRC_DIV2 is 0. + .hircEnableInNotHircMode = true, // HIRC disable. + }, + .simConfig = + { + .er32kSrc = kClockEr32kSrcOsc0, // ERCLK32K selection, use OSC. + .outdiv1 = 0U, + .outdiv4 = 1U, + }, + .oscerConfig = + { + .enable = false, // OSCERCLK disable. + .enableInStop = false, // OSCERCLK disable in STOP mode. + } +}; + +// LCD backlight GPIO pin +static const gpio_output_pin_user_config_t g_lcdBacklight = { .pinName = GPIO_MAKE_PIN(GPIOE_IDX, 31U), .config.outputLogic = 1, .config.slewRate = kPortSlowSlewRate, .config.driveStrength = kPortLowDriveStrength, }; -//////////////////////////////////////////////////////////////////////////////// +// LPTMR configurations +static const lptmr_user_config_t g_lptmrConfig = { + .timerMode = kLptmrTimerModeTimeCounter, + .freeRunningEnable = false, + .prescalerEnable = true, + .prescalerClockSource = kClockLptmrSrcLpoClk, + .prescalerValue = kLptmrPrescalerDivide2, + .isInterruptEnabled = true, +}; + +/////// // Code -//////////////////////////////////////////////////////////////////////////////// + /*! * @brief LPTMR interrupt call back function. * The function is used to toggle LED1. @@ -66,7 +119,7 @@ const gpio_output_pin_user_config_t lcdBacklight = { void lptmr_call_back(void) { // Toggle LED1 - GPIO_DRV_TogglePinOutput(lcdBacklight.pinName); + GPIO_DRV_TogglePinOutput(g_lcdBacklight.pinName); } /*! @@ -74,60 +127,35 @@ void lptmr_call_back(void) */ int main (void) { - // LPTMR configurations - lptmr_user_config_t lptmrConfig = - { - .timerMode = kLptmrTimerModeTimeCounter, - .freeRunningEnable = false, - .prescalerEnable = true, - .prescalerClockSource = kClockLptmrSrcLpoClk, - .prescalerValue = kLptmrPrescalerDivide2, - .isInterruptEnabled = true, - }; - // LPTMR driver state information - lptmr_state_t lptmrState; + /* enable clock for PORTs */ + //CLOCK_SYS_EnablePortClock(PORTA_IDX); + //CLOCK_SYS_EnablePortClock(PORTC_IDX); - // Initialize standard SDK demo application pins - hardware_init(); + /* Set allowed power mode, allow all. */ + SMC_HAL_SetProtection(SMC, kAllowPowerModeAll); - // Initialize LPTMR - LPTMR_DRV_Init(LPTMR0_IDX, &lptmrState, &lptmrConfig); - // Set timer period for TMR_PERIOD seconds - LPTMR_DRV_SetTimerPeriodUs(LPTMR0_IDX, TMR_PERIOD); - // Install interrupt call back function for LPTMR - LPTMR_DRV_InstallCallback(LPTMR0_IDX, lptmr_call_back); - // Start LPTMR - LPTMR_DRV_Start(LPTMR0_IDX); + /* Set system clock configuration. */ + CLOCK_SYS_SetConfiguration(&g_defaultClockConfigRun); - // Initialize LED1 - GPIO_DRV_OutputPinInit(&lcdBacklight); + /* Initialize LPTMR */ + lptmr_state_t lptmrState; + LPTMR_DRV_Init(LPTMR0_IDX, &lptmrState, &g_lptmrConfig); + LPTMR_DRV_SetTimerPeriodUs(LPTMR0_IDX, 500000); + LPTMR_DRV_InstallCallback(LPTMR0_IDX, lptmr_call_back); - // Print the initial banner - PRINTF("\r\nHello World!\n\n\r"); + /* Initialize LCD backlight LED GPIO */ + GPIO_DRV_OutputPinInit(&g_lcdBacklight); + /* Initialize the DAC Converter. */ dac_converter_config_t MyDacUserConfigStruct; - // Fill the structure with configuration of software trigger. // DAC_DRV_StructInitUserConfigNormal(&MyDacUserConfigStruct); - // Initialize the DAC Converter. // DAC_DRV_Init(0, &MyDacUserConfigStruct); - // Output the DAC value. // - uint16_t p = 0x1000; - uint16_t i = 0x2ff; - int8_t d = 1; - while(1) { - if (i == 0x2ff) { - d = 1; - } else if (i == 0x4ff) { - d = -1; - p = p * 7 / 8; - if (p == 0) p = 0x1000; - } - i += d; - DAC_DRV_Output(0, i); - //OSA_TimeDelay(1); - uint16_t c; - for(c = 0; c < p; ++c); - } + + /* Start LPTMR */ + LPTMR_DRV_Start(LPTMR0_IDX); + + // TODO: low power mode? + for(;;); } /* vim: set expandtab ts=4 sw=4: */ |