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Tester23 2025-09-13 17:44:54 +02:00
parent e3167f30a6
commit 812956fa2b
1 changed files with 19 additions and 20 deletions
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39
src/driver/drv_dmx512.c
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@ -44,7 +44,26 @@ static int dmx_pixelSize = 3;
int dmx_pin = 22;
void DMX_Show() {
// BREAK: pull TX low manually
//HAL_PIN_Setup_Output(dmx_pin);
//HAL_PIN_SetOutputValue(dmx_pin, 0);
//HAL_Delay_us(120); // ≥88µs
//HAL_PIN_SetOutputValue(dmx_pin, 1);
//HAL_Delay_us(12); // MAB ≥8µs
#define DMX_BREAK_DURATION_MICROS 88
uint32_t breakBaud = 1000000 * 8 / DMX_BREAK_DURATION_MICROS;
HAL_SetBaud(breakBaud);
HAL_UART_SendByte(0);
HAL_UART_Flush();
HAL_SetBaud(250000);
// restore UART and send DMX data
for (int i = 0; i < DMX_BUFFER_SIZE; i++) {
// HAL_UART_SendByte(g_dmxBuffer[i]);
}
//Serial485.begin(250000, SERIAL_8N2, RS485_RX_PIN, RS485_TX_PIN);
////Serial485.write(dmxBuffer, sizeof(dmxBuffer));
//Serial485.flush();
}
byte DMX_GetByte(uint32_t idx) {
@ -79,26 +98,6 @@ void DMX_Init() {
void HAL_UART_Flush(void);
void HAL_SetBaud(uint32_t baud);
void DMX_OnEverySecond() {
// BREAK: pull TX low manually
//HAL_PIN_Setup_Output(dmx_pin);
//HAL_PIN_SetOutputValue(dmx_pin, 0);
//HAL_Delay_us(120); // ≥88µs
//HAL_PIN_SetOutputValue(dmx_pin, 1);
//HAL_Delay_us(12); // MAB ≥8µs
#define DMX_BREAK_DURATION_MICROS 88
uint32_t breakBaud = 1000000 * 8 / DMX_BREAK_DURATION_MICROS;
HAL_SetBaud(breakBaud);
HAL_UART_SendByte(0);
HAL_UART_Flush();
HAL_SetBaud(250000);
// restore UART and send DMX data
for (int i = 0; i < DMX_BUFFER_SIZE; i++) {
// HAL_UART_SendByte(g_dmxBuffer[i]);
}
//Serial485.begin(250000, SERIAL_8N2, RS485_RX_PIN, RS485_TX_PIN);
////Serial485.write(dmxBuffer, sizeof(dmxBuffer));
//Serial485.flush();
}