// Lua: realclock = setclock( id, clock )
static int ICACHE_FLASH_ATTR lpwm_setclock( lua_State* L )
{
unsigned id;
s32 clk; // signed to error-check for negative values
id = luaL_checkinteger( L, 1 );
MOD_CHECK_ID( pwm, id );
clk = luaL_checkinteger( L, 2 );
if ( clk <= 0 )
return luaL_error( L, "wrong arg range" );
clk = platform_pwm_set_clock( id, (u32)clk );
lua_pushinteger( L, clk );
return 1;
}
// Lua: realclock = setclock( id, clock )
static int pwm_setclock( lua_State *L )
{
unsigned id;
s32 clk; // signed to error-check for negative values
id = luaL_checkinteger( L, 1 );
MOD_CHECK_ID( pwm, id );
clk = luaL_checkinteger( L, 2 );
if ( clk <= 0 )
return luaL_error( L, "frequency must be > 0" );
clk = platform_pwm_set_clock( id, (u32)clk );
lua_pushinteger( L, clk );
return 1;
}
// Lua: realclock = setclock( clock )
static int lpwmled_setclock( lua_State* L )
{
unsigned id;
s32 clk; // signed to error-check for negative values
clk = luaL_checkinteger( L, 1 );
if ( clk <= 0 )
return luaL_error( L, "wrong arg range" );
led.frequency=clk;
led.frequency = platform_pwm_set_clock( led.pwmidr,led.frequency );
//due to ESP construction no need in next two
//led.frequency = platform_pwm_set_clock( led.pwmidg,led.frequency );
//led.frequency = platform_pwm_set_clock( led.pwmidb,led.frequency );
lua_pushinteger( L, led.frequency );
return 1;
}
// Setup all PWM channels
static void platform_setup_pwm()
{
PWM_MATCHCFG_Type PWMMatchCfgDat;
// Keep clock in reset, set PWM code
PWM_ResetCounter( LPC_PWM1 );
// Set match mode (reset on MR0 match)
PWMMatchCfgDat.IntOnMatch = DISABLE;
PWMMatchCfgDat.MatchChannel = 0;
PWMMatchCfgDat.ResetOnMatch = ENABLE;
PWMMatchCfgDat.StopOnMatch = DISABLE;
PWM_ConfigMatch( LPC_PWM1, &PWMMatchCfgDat );
// Set base frequency to 1MHz
platform_pwm_set_clock( 0, 1000000 );
}
