70 lines
1.8 KiB
C
70 lines
1.8 KiB
C
#include "includes.h"
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// Note Off 0x8n
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void SendNoteOffMidiEvent(uint8_t Key, uint8_t OffVal)
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{
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uint8_t midibuff[3] = {0x80 , Key , OffVal};
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USART2_SendData(midibuff,sizeof(midibuff));
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}
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// Note On 0x9n
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void SendNoteOnMidiEvent(uint8_t Key, uint8_t OnVal)
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{
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uint8_t midibuff[3] = {0x90 , Key , OnVal};
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USART2_SendData(midibuff,sizeof(midibuff));
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}
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void SendProgramChangeMidiEvent(uint8_t channel,uint8_t CC)
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{
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uint8_t midibuff[2] = {0xC0|channel , CC };
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SendMidiDataToDreamDSP(midibuff,2);
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}
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void SendVolumeChangeMidiEvent(uint8_t channel,uint8_t CC)
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{
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uint8_t midibuff[3] = {0xB0|channel ,0x07, CC };
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SendMidiDataToDreamDSP(midibuff,3);
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}
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/* Bank Select：CC0(MSB)=bank，CC32(LSB)=0。Dream 双音色库：0=伴奏，1=主弦 */
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void SendBankChangeMidiEvent(uint8_t channel, uint8_t bank)
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{
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uint8_t midibuff[3] = {0xB0|(channel & 0x0F) ,0x00, bank };
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SendMidiDataToDreamDSP(midibuff,3);
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midibuff[1] = 0x20; /* CC32 Bank LSB */
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midibuff[2] = 0;
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SendMidiDataToDreamDSP(midibuff,3);
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}
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/* 先选 Bank 再 Program Change，避免漏发 Bank Select 落到错误音色库 */
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void SendProgramWithBankMidiEvent(uint8_t channel, uint8_t bank, uint8_t program)
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{
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SendBankChangeMidiEvent(channel, bank);
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SendProgramChangeMidiEvent(channel, program);
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}
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void SendMidiDataToDreamDSP(uint8_t* buff, uint16_t cnt)
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{
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USART2_SendData(buff,cnt);
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}
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#define AT32_UID_BASE 0x1FFFF7E8UL
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void BleBuildDeviceName(char *out)
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{
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static const char hex[] = "0123456789ABCDEF";
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const uint32_t *uid = (const uint32_t *)AT32_UID_BASE;
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uint32_t tail = uid[2] & 0x00FFFFFFu;
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unsigned i;
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out[0] = 'P';
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out[1] = 'H';
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out[2] = 'O';
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out[3] = 'N';
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out[4] = '_';
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for (i = 0; i < 6; i++)
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out[5 + i] = hex[(tail >> (4 * (5 - i))) & 0xFu];
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out[BLE_DEVICE_NAME_LEN] = '\0';
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}
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