| 29 | #endif /* HC32F4A8 && BSP_USING_DAC2 */ |
| 30 | |
| 31 | static int dac_vol_sample(int argc, char *argv[]) |
| 32 | { |
| 33 | char dac_device_name[] = "dac1"; |
| 34 | rt_uint8_t channel = 1; |
| 35 | rt_uint8_t max_channel = 2; |
| 36 | rt_dac_device_t dac_dev; |
| 37 | rt_uint32_t value = 1365; /* 默认1.1V */ |
| 38 | rt_uint32_t convertBits; |
| 39 | rt_uint32_t vol; |
| 40 | rt_err_t ret = RT_EOK; |
| 41 | |
| 42 | /* 参数无输入或者输入错误按照默认值处理 */ |
| 43 | if (argc >= 2) |
| 44 | { |
| 45 | if (0 == rt_strcmp(argv[1], "dac1")) |
| 46 | { |
| 47 | rt_strcpy(dac_device_name, "dac1"); |
| 48 | max_channel = 2; |
| 49 | } |
| 50 | #if defined (HC32F4A0) || defined (HC32F472) || defined (HC32F4A8) || defined (HC32F334) |
| 51 | else if (0 == rt_strcmp(argv[1], "dac2")) |
| 52 | { |
| 53 | rt_strcpy(dac_device_name, "dac2"); |
| 54 | #if defined (HC32F4A0) || defined (HC32F472) || defined (HC32F4A8) |
| 55 | max_channel = 2; |
| 56 | #elif defined (HC32F334) |
| 57 | max_channel = 1; |
| 58 | #endif |
| 59 | } |
| 60 | #endif |
| 61 | #if defined (HC32F472) |
| 62 | else if (0 == rt_strcmp(argv[1], "dac3")) |
| 63 | { |
| 64 | rt_strcpy(dac_device_name, "dac3"); |
| 65 | max_channel = 2; |
| 66 | } |
| 67 | else if (0 == rt_strcmp(argv[1], "dac4")) |
| 68 | { |
| 69 | rt_strcpy(dac_device_name, "dac4"); |
| 70 | max_channel = 2; |
| 71 | } |
| 72 | #endif |
| 73 | else |
| 74 | { |
| 75 | rt_kprintf("The chip hasn't the dac unit!\r\n"); |
| 76 | return -RT_ERROR; |
| 77 | } |
| 78 | } |
| 79 | #if (defined (HC32F4A8) || defined (HC32F4A0)) && defined (BSP_USING_DAC2) |
| 80 | EthPhyDisable(); |
| 81 | #endif |
| 82 | /* 查找设备 */ |
| 83 | dac_dev = (rt_dac_device_t)rt_device_find(dac_device_name); |
| 84 | if (dac_dev == RT_NULL) |
| 85 | { |
| 86 | rt_kprintf("dac sample run failed! can't find %s device!\n", dac_device_name); |
| 87 | return -RT_ERROR; |
| 88 | } |
nothing calls this directly
no test coverage detected