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34 | 34 | #include "fsl_lpuart.h"
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35 | 35 |
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36 | 36 | // TODO: Switch this to using DEBUG_UART.
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| 37 | +// Need official way to turn off the port serial code when it is not needed |
37 | 38 | #if defined(USE_DEBUG_PORT_CODE)
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38 | 39 | // static LPUART_Type *uart_instance = LPUART1; // evk
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39 | 40 | static LPUART_Type *uart_instance = LPUART4; // feather 1011
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40 | 41 | // static LPUART_Type *uart_instance = LPUART2; // feather 1062
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41 | 42 |
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42 | 43 | static uint32_t UartSrcFreq(void) {
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43 |
| - uint32_t freq; |
44 |
| - |
45 |
| - /* To make it simple, we assume default PLL and divider settings, and the only |
46 |
| - variable from application is use PLL3 source or OSC source */ |
47 |
| - /* PLL3 div6 80M */ |
48 |
| - if (CLOCK_GetMux(kCLOCK_UartMux) == 0) { |
49 |
| - freq = (CLOCK_GetPllFreq(kCLOCK_PllUsb1) / 6U) / |
50 |
| - (CLOCK_GetDiv(kCLOCK_UartDiv) + 1U); |
51 |
| - } else { |
52 |
| - freq = CLOCK_GetOscFreq() / (CLOCK_GetDiv(kCLOCK_UartDiv) + 1U); |
53 |
| - } |
54 |
| - |
55 |
| - return freq; |
| 44 | + uint32_t freq; |
| 45 | + |
| 46 | + /* To make it simple, we assume default PLL and divider settings, and the only |
| 47 | + variable from application is use PLL3 source or OSC source */ |
| 48 | + /* PLL3 div6 80M */ |
| 49 | + if (CLOCK_GetMux(kCLOCK_UartMux) == 0) { |
| 50 | + freq = (CLOCK_GetPllFreq(kCLOCK_PllUsb1) / 6U) / |
| 51 | + (CLOCK_GetDiv(kCLOCK_UartDiv) + 1U); |
| 52 | + } else { |
| 53 | + freq = CLOCK_GetOscFreq() / (CLOCK_GetDiv(kCLOCK_UartDiv) + 1U); |
| 54 | + } |
| 55 | + |
| 56 | + return freq; |
56 | 57 | }
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57 | 58 |
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58 | 59 | void port_serial_init(void) {
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59 |
| - lpuart_config_t config; |
| 60 | + lpuart_config_t config; |
60 | 61 |
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61 |
| - LPUART_GetDefaultConfig(&config); |
62 |
| - config.baudRate_Bps = 115200; |
63 |
| - config.enableTx = true; |
64 |
| - config.enableRx = true; |
| 62 | + LPUART_GetDefaultConfig(&config); |
| 63 | + config.baudRate_Bps = 115200; |
| 64 | + config.enableTx = true; |
| 65 | + config.enableRx = true; |
65 | 66 |
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66 |
| - LPUART_Init(uart_instance, &config, UartSrcFreq()); |
| 67 | + LPUART_Init(uart_instance, &config, UartSrcFreq()); |
67 | 68 | }
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68 | 69 |
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69 |
| -bool port_serial_connected(void) { return true; } |
| 70 | +bool port_serial_connected(void) { |
| 71 | + return true; |
| 72 | +} |
70 | 73 |
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71 | 74 | char port_serial_read(void) {
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72 |
| - uint8_t data; |
| 75 | + uint8_t data; |
73 | 76 |
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74 |
| - LPUART_ReadBlocking(uart_instance, &data, sizeof(data)); |
| 77 | + LPUART_ReadBlocking(uart_instance, &data, sizeof(data)); |
75 | 78 |
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76 |
| - return data; |
| 79 | + return data; |
77 | 80 | }
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78 | 81 |
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79 | 82 | bool port_serial_bytes_available(void) {
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80 |
| - return LPUART_GetStatusFlags(uart_instance) & kLPUART_RxDataRegFullFlag; |
| 83 | + return LPUART_GetStatusFlags(uart_instance) & kLPUART_RxDataRegFullFlag; |
81 | 84 | }
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82 | 85 |
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83 | 86 | void port_serial_write_substring(const char *text, uint32_t len) {
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84 |
| - if (len == 0) { |
85 |
| - return; |
86 |
| - } |
| 87 | + if (len == 0) { |
| 88 | + return; |
| 89 | + } |
87 | 90 |
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88 |
| - LPUART_WriteBlocking(uart_instance, (uint8_t *)text, len); |
| 91 | + LPUART_WriteBlocking(uart_instance, (uint8_t *)text, len); |
89 | 92 | }
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90 | 93 | #endif // USE_DEBUG_PORT_CODE
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