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working neopixel

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This commit is contained in:
Greg Steiert 2021-01-03 23:01:18 +00:00
parent f44c588dd7
commit 33f0d4b314
1 changed files with 24 additions and 14 deletions
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38
hw/bsp/double_m33_express/double_m33_express.c
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@ -93,17 +93,20 @@ void USB1_IRQHandler(void)
#define NEO_EVENT_NEXT 3
#define NEO_EVENT_START 4
#define NEO_SCT_OUTPUT 6
#define NEO_STATE_IDLE 8
#define NEO_ARRAY_SIZE (3 * NEOPIXEL_NUMBER)
#define NEO_STATE_IDLE 24
//#define NEO_ARRAY_SIZE (3 * NEOPIXEL_NUMBER)
volatile uint32_t _neopixel_array[NEO_ARRAY_SIZE] = {0x10, 0x20, 0x30, 0x40, 0x50, 0x60};
//volatile uint32_t _neopixel_array[NEO_ARRAY_SIZE] = {0x10, 0x20, 0x30, 0x40, 0x50, 0x60};
volatile uint32_t _neopixel_array[NEOPIXEL_NUMBER] = {0x404040, 0x202020};
volatile uint32_t _neopixel_count = 0;
void neopixel_int_handler(void){
uint32_t eventFlag = NEO_SCT->EVFLAG;
if ((eventFlag == (1 << NEO_EVENT_NEXT)) && (_neopixel_count < (NEO_ARRAY_SIZE))) {
NEO_SCT->EV[NEO_EVENT_FALL_0].STATE = 0xFF & (~_neopixel_array[_neopixel_count]);
// if ((eventFlag & (1 << NEO_EVENT_NEXT)) && (_neopixel_count < (NEO_ARRAY_SIZE))) {
// NEO_SCT->EV[NEO_EVENT_FALL_0].STATE = 0xFF & (~_neopixel_array[_neopixel_count]);
if ((eventFlag & (1 << NEO_EVENT_NEXT)) && (_neopixel_count < (NEOPIXEL_NUMBER))) {
_neopixel_count += 1;
NEO_SCT->EV[NEO_EVENT_FALL_0].STATE = 0xFFFFFF & (~_neopixel_array[_neopixel_count]);
NEO_SCT->EVFLAG = eventFlag;
NEO_SCT->CTRL &= ~(SCT_CTRL_HALT_L_MASK);
} else {
@ -118,13 +121,16 @@ void SCT0_DriverIRQHandler(void){
void neopixel_update(uint32_t pixel, uint32_t color){
if (pixel < NEOPIXEL_NUMBER) {
/*
uint32_t index = 3*pixel;
_neopixel_array[index++] = color>>8; // green first
_neopixel_array[index++] = color>>16; // red
_neopixel_array[index] = color; // blue
// _neopixel_array[pixel] = color;
*/
_neopixel_array[pixel] = color;
_neopixel_count = 0;
NEO_SCT->EV[NEO_EVENT_FALL_0].STATE = 0xFF & (~_neopixel_array[0]);
// NEO_SCT->EV[NEO_EVENT_FALL_0].STATE = 0xFF & (~_neopixel_array[0]);
NEO_SCT->EV[NEO_EVENT_FALL_0].STATE = 0xFFFFFF & (~_neopixel_array[0]);
NEO_SCT->CTRL &= ~(SCT_CTRL_HALT_L_MASK);
}
}
@ -147,30 +153,32 @@ void neopixel_init(void) {
NEO_SCT->EV[NEO_EVENT_START].STATE = (1 << NEO_STATE_IDLE);
NEO_SCT->EV[NEO_EVENT_START].CTRL = (
kSCTIMER_OutputLowEvent | SCT_EV_CTRL_IOSEL(NEO_SCT_OUTPUT) |
SCT_EV_CTRL_STATELD(1) | SCT_EV_CTRL_STATEV(7));
NEO_SCT->EV[NEO_EVENT_RISE].STATE = 0xFE;
SCT_EV_CTRL_STATELD(1) | SCT_EV_CTRL_STATEV(23));
// NEO_SCT->EV[NEO_EVENT_RISE].STATE = 0xFE;
NEO_SCT->EV[NEO_EVENT_RISE].STATE = 0xFFFFFE;
NEO_SCT->EV[NEO_EVENT_RISE].CTRL = (
kSCTIMER_MatchEventOnly | SCT_EV_CTRL_MATCHSEL(NEO_MATCH_PERIOD) |
SCT_EV_CTRL_STATELD(0) | SCT_EV_CTRL_STATEV(31));
NEO_SCT->EV[NEO_EVENT_FALL_0].STATE = 0x0;
NEO_SCT->EV[NEO_EVENT_FALL_0].CTRL = (
kSCTIMER_MatchEventOnly | SCT_EV_CTRL_MATCHSEL(NEO_MATCH_0) |
SCT_EV_CTRL_STATELD(0) | SCT_EV_CTRL_STATEV(31));
NEO_SCT->EV[NEO_EVENT_FALL_1].STATE = 0xFF;
SCT_EV_CTRL_STATELD(0) );
// NEO_SCT->EV[NEO_EVENT_FALL_1].STATE = 0xFF;
NEO_SCT->EV[NEO_EVENT_FALL_1].STATE = 0xFFFFFF;
NEO_SCT->EV[NEO_EVENT_FALL_1].CTRL = (
kSCTIMER_MatchEventOnly | SCT_EV_CTRL_MATCHSEL(NEO_MATCH_1) |
SCT_EV_CTRL_STATELD(0) | SCT_EV_CTRL_STATEV(31));
SCT_EV_CTRL_STATELD(0) );
NEO_SCT->EV[NEO_EVENT_NEXT].STATE = 0x1;
NEO_SCT->EV[NEO_EVENT_NEXT].CTRL = (
kSCTIMER_MatchEventOnly | SCT_EV_CTRL_MATCHSEL(NEO_MATCH_PERIOD) |
SCT_EV_CTRL_STATELD(1) | SCT_EV_CTRL_STATEV(NEO_STATE_IDLE));
NEO_SCT->LIMIT = (1 << NEO_EVENT_START) | (1 << NEO_EVENT_RISE);
NEO_SCT->LIMIT = (1 << NEO_EVENT_START) | (1 << NEO_EVENT_RISE) | (1 << NEO_EVENT_NEXT);
NEO_SCT->HALT = (1 << NEO_EVENT_NEXT);
NEO_SCT->START = (1 << NEO_EVENT_START);
NEO_SCT->OUT[NEO_SCT_OUTPUT].SET = (1 << NEO_EVENT_START) | (1 << NEO_EVENT_RISE);
NEO_SCT->OUT[NEO_SCT_OUTPUT].CLR = (1 << NEO_EVENT_FALL_0) | (1<< NEO_EVENT_FALL_1);
NEO_SCT->OUT[NEO_SCT_OUTPUT].CLR = (1 << NEO_EVENT_FALL_0) | (1 << NEO_EVENT_FALL_1) | (1 << NEO_EVENT_NEXT);
NEO_SCT->STATE = NEO_STATE_IDLE;
NEO_SCT->OUTPUT = 0x0;
@ -322,6 +330,8 @@ void board_init(void)
void board_led_write(bool state)
{
GPIO_PinWrite(GPIO, LED_PORT, LED_PIN, state ? LED_STATE_ON : (1-LED_STATE_ON));
_neopixel_array[1] = _neopixel_array[0];
neopixel_update(0, state ? 0x001000 : 0x100000);
}
uint32_t board_button_read(void)