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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,18 @@ | ||
| /* | ||
| * rn4020.h | ||
| * | ||
| * Created on: 2019/04/25 | ||
| */ | ||
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| #ifndef RN4020_H_ | ||
| #define RN4020_H_ | ||
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| #include <stdint.h> | ||
| #include "usart.h" | ||
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| // TX characteristics (NOTIFY) | ||
| #define NOTIFY_CHARA "SUW,010203040506070809000A0B0C0D0E0F," | ||
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| void notify(uint8_t *data, int len); | ||
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| #endif /* RN4020_H_ */ |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,70 @@ | ||
| /* | ||
| * rn4020.c | ||
| * | ||
| * Created on: 2019/04/25 | ||
| */ | ||
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| #include "rn4020.h" | ||
| #include <stdio.h> | ||
| #include <stdbool.h> | ||
| #include <stdlib.h> | ||
| #include <string.h> | ||
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| #include "app_nfc_uri.h" | ||
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| #define BUFSIZE 64U | ||
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| uint8_t uart_rx_data; | ||
| uint8_t data_buf[BUFSIZE/2]; | ||
| volatile bool command_received = false; | ||
| volatile int data_len; | ||
| uint8_t cnt = 0; | ||
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| char send_buf[100]; | ||
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| typedef enum { | ||
| CNT_CHARA, URI_CHARA | ||
| } tx_chara; | ||
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| /** | ||
| * Transfer byte array to a BLE central via RN4020 module. | ||
| * | ||
| * Note: binary data (uint8_t) is converted into hex in ASCII, | ||
| * because RN4020 accepts binary data in ASCII mode. | ||
| * | ||
| */ | ||
| void notify(uint8_t *data, int len) { | ||
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| int i = 0; | ||
| int idx = 0; | ||
| char ascii_hex_buf[3]; | ||
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| // TX characteristics | ||
| strcpy(send_buf, NOTIFY_CHARA); | ||
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| while (true) { | ||
| sprintf(ascii_hex_buf, "%02x", data[idx]); | ||
| send_buf[37+i*2] = ascii_hex_buf[0]; | ||
| send_buf[37+i*2+1] = ascii_hex_buf[1]; | ||
| i++; | ||
| idx++; | ||
| if (i == 20) { // The length of 20 bytes | ||
| send_buf[37 + i*2] = '\n'; | ||
| HAL_UART_Transmit(&huart6, (uint8_t *)send_buf, 37+i*2+1, 0xffff); | ||
| // For debug | ||
| send_buf[37 + i*2] = '\0'; | ||
| printf("sendData(@20): %s\n", send_buf); | ||
| // NOTIFY interval | ||
| HAL_Delay(500); | ||
| i = 0; | ||
| } else if (idx >= len) { // The length of data | ||
| send_buf[37 + i*2] = '\n'; | ||
| HAL_UART_Transmit(&huart6, (uint8_t *)send_buf, 37+i*2+1, 0xffff); | ||
| // For debug | ||
| send_buf[37 + i*2] = '\0'; | ||
| printf("sendData(@len): %s\n", send_buf); | ||
| break; | ||
| } | ||
| } | ||
| } |
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