Important changes to repositories hosted on mbed.com
Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.
To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.
It is also possible to export all your personal repositories from the account settings page.
Fork of Impedance_Fast_Circuitry by
main.cpp@63:7903a33e2fd4, 2016-02-23 (annotated)
- Committer:
- bmazzeo
- Date:
- Tue Feb 23 19:49:42 2016 +0000
- Revision:
- 63:7903a33e2fd4
- Parent:
- 61:a56cca07d4a6
- Child:
- 64:bb4a4bd57681
Double length buffers appear to work now.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
donatien | 0:bb128f0e952f | 1 | #include "mbed.h" |
timmey9 | 22:523e316cbe70 | 2 | |
timmey9 | 52:5a40cc58c4c2 | 3 | // Sampling |
bmazzeo | 53:83a90a47c1fd | 4 | #include "DMA_sampling/adc.h" |
bmazzeo | 54:1697dc574b96 | 5 | #include "DMA_sampling/dac.h" |
bmazzeo | 55:2526b3317bc8 | 6 | #include "DMA_sampling/pdb.h" |
timmey9 | 22:523e316cbe70 | 7 | |
timmey9 | 22:523e316cbe70 | 8 | // for debug purposes |
timmey9 | 18:b17ddeeb1c09 | 9 | Serial pc(USBTX, USBRX); |
timmey9 | 18:b17ddeeb1c09 | 10 | DigitalOut led_red(LED_RED); |
timmey9 | 18:b17ddeeb1c09 | 11 | DigitalOut led_green(LED_GREEN); |
timmey9 | 18:b17ddeeb1c09 | 12 | DigitalOut led_blue(LED_BLUE); |
bmazzeo | 58:4bee89daccff | 13 | DigitalOut status_0(D0); |
bmazzeo | 58:4bee89daccff | 14 | DigitalOut status_1(D1); |
timmey9 | 51:43143a3fc2d7 | 15 | |
timmey9 | 52:5a40cc58c4c2 | 16 | // defined in dma.cpp |
timmey9 | 45:d591d138cdeb | 17 | extern int len; |
timmey9 | 45:d591d138cdeb | 18 | extern uint16_t sample_array0[]; |
timmey9 | 45:d591d138cdeb | 19 | extern uint16_t sample_array1[]; |
timmey9 | 41:3e0623d81b9a | 20 | |
bmazzeo | 54:1697dc574b96 | 21 | extern uint16_t static_input_array0[]; |
bmazzeo | 54:1697dc574b96 | 22 | extern uint16_t static_input_array1[]; |
bmazzeo | 54:1697dc574b96 | 23 | |
bmazzeo | 55:2526b3317bc8 | 24 | extern uint16_t static_output_array0[]; |
bmazzeo | 56:7e08cbc3a4f1 | 25 | extern uint16_t output_array0[]; |
bmazzeo | 55:2526b3317bc8 | 26 | |
bmazzeo | 57:7b8c49e1c1f6 | 27 | extern uint16_t sampling_status; |
bmazzeo | 57:7b8c49e1c1f6 | 28 | |
timmey9 | 22:523e316cbe70 | 29 | using namespace std; |
timmey9 | 17:2f978f823020 | 30 | |
emilmont | 7:65188f4a8c25 | 31 | int main() { |
timmey9 | 22:523e316cbe70 | 32 | led_blue = 1; |
timmey9 | 35:df40c4566826 | 33 | led_green = 1; |
timmey9 | 18:b17ddeeb1c09 | 34 | led_red = 1; |
timmey9 | 34:44cc9b76a507 | 35 | |
timmey9 | 18:b17ddeeb1c09 | 36 | pc.baud(230400); |
timmey9 | 34:44cc9b76a507 | 37 | pc.printf("Starting\r\n"); |
timmey9 | 27:8c2b30c855d1 | 38 | |
bmazzeo | 55:2526b3317bc8 | 39 | pdb_init(); // Initalize PDB |
bmazzeo | 55:2526b3317bc8 | 40 | |
bmazzeo | 54:1697dc574b96 | 41 | dac_init(); // initializes DAC |
bmazzeo | 54:1697dc574b96 | 42 | |
timmey9 | 45:d591d138cdeb | 43 | adc_init(); // always initialize adc before dma |
bmazzeo | 53:83a90a47c1fd | 44 | |
bmazzeo | 53:83a90a47c1fd | 45 | pc.printf("ADC Initialized\r\n"); |
bmazzeo | 53:83a90a47c1fd | 46 | |
timmey9 | 51:43143a3fc2d7 | 47 | dma_init(); // initializes DMAs |
bmazzeo | 55:2526b3317bc8 | 48 | dma_reset(); // This clears any DMA triggers that may have gotten things into a different state |
timmey9 | 45:d591d138cdeb | 49 | |
bmazzeo | 54:1697dc574b96 | 50 | |
timmey9 | 46:a015ebf4663b | 51 | led_green = 1; |
timmey9 | 38:ec3b16c130d7 | 52 | |
timmey9 | 40:bd6d8c35e822 | 53 | pc.printf("\r\n\r\n\r\n"); |
timmey9 | 37:8bdc71f3e874 | 54 | |
bmazzeo | 63:7903a33e2fd4 | 55 | //pdb_start(); |
bmazzeo | 63:7903a33e2fd4 | 56 | /* while(1) |
bmazzeo | 61:a56cca07d4a6 | 57 | { |
bmazzeo | 61:a56cca07d4a6 | 58 | while(sampling_status == 0) |
bmazzeo | 61:a56cca07d4a6 | 59 | { |
bmazzeo | 61:a56cca07d4a6 | 60 | led_green = 1; |
bmazzeo | 61:a56cca07d4a6 | 61 | status_0 = 1; |
bmazzeo | 61:a56cca07d4a6 | 62 | } |
bmazzeo | 54:1697dc574b96 | 63 | |
bmazzeo | 61:a56cca07d4a6 | 64 | sampling_status = 0; |
bmazzeo | 61:a56cca07d4a6 | 65 | led_green = 0; |
bmazzeo | 61:a56cca07d4a6 | 66 | status_0 = 0; |
bmazzeo | 58:4bee89daccff | 67 | |
bmazzeo | 61:a56cca07d4a6 | 68 | status_1 = 1; |
bmazzeo | 61:a56cca07d4a6 | 69 | for(int i = 0; i < len; i++) |
bmazzeo | 61:a56cca07d4a6 | 70 | { |
bmazzeo | 61:a56cca07d4a6 | 71 | static_output_array0[i] = static_input_array0[i] >> 4; |
bmazzeo | 61:a56cca07d4a6 | 72 | //pc.printf("%i\r\n", static_input_array0[i]); |
bmazzeo | 61:a56cca07d4a6 | 73 | } |
bmazzeo | 61:a56cca07d4a6 | 74 | status_1 = 0; |
bmazzeo | 61:a56cca07d4a6 | 75 | } |
bmazzeo | 61:a56cca07d4a6 | 76 | } |
bmazzeo | 63:7903a33e2fd4 | 77 | |
bmazzeo | 63:7903a33e2fd4 | 78 | */ |
bmazzeo | 63:7903a33e2fd4 | 79 | while(1) |
bmazzeo | 63:7903a33e2fd4 | 80 | { |
bmazzeo | 63:7903a33e2fd4 | 81 | if(pc.readable() > 0) { |
bmazzeo | 61:a56cca07d4a6 | 82 | char temp = pc.getc(); |
bmazzeo | 61:a56cca07d4a6 | 83 | |
bmazzeo | 61:a56cca07d4a6 | 84 | switch(temp) { |
bmazzeo | 61:a56cca07d4a6 | 85 | case 'F': // clear the samples |
bmazzeo | 61:a56cca07d4a6 | 86 | case 'f': |
bmazzeo | 61:a56cca07d4a6 | 87 | for(int i = 0; i < len; i++) {sample_array0[i] = 0; sample_array1[i] = 0;} |
bmazzeo | 61:a56cca07d4a6 | 88 | pc.printf("Arrays cleared\r\n"); |
bmazzeo | 61:a56cca07d4a6 | 89 | // then display the samples |
bmazzeo | 61:a56cca07d4a6 | 90 | break; |
bmazzeo | 61:a56cca07d4a6 | 91 | case 'S': // display what's been sampled |
bmazzeo | 61:a56cca07d4a6 | 92 | case 's': |
bmazzeo | 61:a56cca07d4a6 | 93 | for(int i = 0; i < len; i++) pc.printf("%i: %f\t %f\t %f\t %f\r\n",i,sample_array0[i]*3.3/65535,sample_array1[i]*3.3/65535,static_input_array0[i]*3.3/65535,static_input_array1[i]*3.3/65535); |
bmazzeo | 63:7903a33e2fd4 | 94 | for(int i = len; i < len*2; i++) pc.printf("%i: %f\t %f\t %f\t %f\r\n",i,sample_array0[i]*3.3/65535,sample_array1[i]*3.3/65535,(float) 100, (float) 100); |
bmazzeo | 61:a56cca07d4a6 | 95 | pc.printf("\r\n"); |
bmazzeo | 63:7903a33e2fd4 | 96 | //pc.printf("0: %f\t %f\t %f\t %f\r\n",0,sample_array0[0]*3.3/65535,sample_array1[0]*3.3/65535,static_input_array0[0]*3.3/65535,static_input_array1[0]*3.3/65535); |
bmazzeo | 63:7903a33e2fd4 | 97 | //pc.printf("\r\n"); |
bmazzeo | 61:a56cca07d4a6 | 98 | break; |
bmazzeo | 61:a56cca07d4a6 | 99 | |
bmazzeo | 61:a56cca07d4a6 | 100 | case 'D': // DMA debug |
bmazzeo | 61:a56cca07d4a6 | 101 | case 'd': |
bmazzeo | 61:a56cca07d4a6 | 102 | pc.printf("DMA Status:\r\n"); |
bmazzeo | 61:a56cca07d4a6 | 103 | pc.printf("DMA_TCD0_SOFF: %x\r\n", DMA_TCD0_SOFF); |
bmazzeo | 61:a56cca07d4a6 | 104 | pc.printf("DMA_TCD1_SOFF: %x\r\n", DMA_TCD1_SOFF); |
bmazzeo | 63:7903a33e2fd4 | 105 | pc.printf("DMA_TCD0_SADDR: %i\r\n", DMA_TCD0_SADDR); |
bmazzeo | 63:7903a33e2fd4 | 106 | pc.printf("DMA_TCD0_DADDR: %i\r\n", DMA_TCD0_DADDR); |
bmazzeo | 63:7903a33e2fd4 | 107 | |
bmazzeo | 61:a56cca07d4a6 | 108 | pc.printf("DMA_TCD0_CITER_ELINKNO: %x\r\n", DMA_TCD0_CITER_ELINKNO); |
bmazzeo | 61:a56cca07d4a6 | 109 | pc.printf("DMA_TCD0_BITER_ELINKNO: %x\r\n", DMA_TCD0_BITER_ELINKNO); |
bmazzeo | 61:a56cca07d4a6 | 110 | pc.printf("DMA_TCD1_CITER_ELINKNO: %x\r\n", DMA_TCD1_CITER_ELINKNO); |
bmazzeo | 61:a56cca07d4a6 | 111 | pc.printf("DMA_TCD1_BITER_ELINKNO: %x\r\n", DMA_TCD1_BITER_ELINKNO); |
bmazzeo | 61:a56cca07d4a6 | 112 | pc.printf("DMA_TCD2_CITER_ELINKNO: %x\r\n", DMA_TCD2_CITER_ELINKNO); |
bmazzeo | 61:a56cca07d4a6 | 113 | pc.printf("DMA_TCD2_BITER_ELINKNO: %x\r\n", DMA_TCD2_BITER_ELINKNO); |
bmazzeo | 61:a56cca07d4a6 | 114 | pc.printf("DMA_TCD3_CITER_ELINKNO: %x\r\n", DMA_TCD3_CITER_ELINKNO); |
bmazzeo | 61:a56cca07d4a6 | 115 | pc.printf("DMA_TCD3_BITER_ELINKNO: %x\r\n", DMA_TCD3_BITER_ELINKNO); |
bmazzeo | 63:7903a33e2fd4 | 116 | pc.printf("DMA Status:\r\n"); |
bmazzeo | 63:7903a33e2fd4 | 117 | pc.printf("DMA_TCD4_SADDR: %i\r\n", DMA_TCD4_SADDR); |
bmazzeo | 63:7903a33e2fd4 | 118 | pc.printf("DMA_TCD4_DADDR: %i\r\n", DMA_TCD4_DADDR); |
bmazzeo | 63:7903a33e2fd4 | 119 | pc.printf("DMA_TCD4_CITER_ELINKNO: %x\r\n", DMA_TCD4_CITER_ELINKNO); |
bmazzeo | 63:7903a33e2fd4 | 120 | pc.printf("DMA_TCD4_BITER_ELINKNO: %x\r\n", DMA_TCD4_BITER_ELINKNO); |
bmazzeo | 63:7903a33e2fd4 | 121 | pc.printf("DMA_TCD5_SADDR: %i\r\n", DMA_TCD5_SADDR); |
bmazzeo | 63:7903a33e2fd4 | 122 | pc.printf("DMA_TCD5_DADDR: %i\r\n", DMA_TCD5_DADDR); |
bmazzeo | 63:7903a33e2fd4 | 123 | pc.printf("DMA_TCD5_CITER_ELINKNO: %x\r\n", DMA_TCD5_CITER_ELINKNO); |
bmazzeo | 63:7903a33e2fd4 | 124 | pc.printf("DMA_TCD5_BITER_ELINKNO: %x\r\n", DMA_TCD5_BITER_ELINKNO); |
bmazzeo | 63:7903a33e2fd4 | 125 | pc.printf("DMA_TCD6_CITER_ELINKNO: %x\r\n", DMA_TCD6_CITER_ELINKNO); |
bmazzeo | 63:7903a33e2fd4 | 126 | pc.printf("DMA_TCD6_BITER_ELINKNO: %x\r\n", DMA_TCD6_BITER_ELINKNO); |
bmazzeo | 63:7903a33e2fd4 | 127 | pc.printf("DMA_TCD7_CITER_ELINKNO: %x\r\n", DMA_TCD7_CITER_ELINKNO); |
bmazzeo | 63:7903a33e2fd4 | 128 | pc.printf("DMA_TCD7_BITER_ELINKNO: %x\r\n", DMA_TCD7_BITER_ELINKNO); |
bmazzeo | 63:7903a33e2fd4 | 129 | pc.printf("DMA_TCD8_CITER_ELINKNO: %x\r\n", DMA_TCD8_CITER_ELINKNO); |
bmazzeo | 63:7903a33e2fd4 | 130 | pc.printf("DMA_TCD8_BITER_ELINKNO: %x\r\n", DMA_TCD8_BITER_ELINKNO); |
bmazzeo | 63:7903a33e2fd4 | 131 | pc.printf("DMA_TCD9_CITER_ELINKNO: %x\r\n", DMA_TCD9_CITER_ELINKNO); |
bmazzeo | 63:7903a33e2fd4 | 132 | pc.printf("DMA_TCD9_BITER_ELINKNO: %x\r\n", DMA_TCD9_BITER_ELINKNO); |
bmazzeo | 61:a56cca07d4a6 | 133 | break; |
bmazzeo | 61:a56cca07d4a6 | 134 | |
bmazzeo | 61:a56cca07d4a6 | 135 | |
bmazzeo | 61:a56cca07d4a6 | 136 | |
bmazzeo | 61:a56cca07d4a6 | 137 | |
bmazzeo | 61:a56cca07d4a6 | 138 | // Programmable Delay Block debug |
bmazzeo | 61:a56cca07d4a6 | 139 | case 'B': |
bmazzeo | 61:a56cca07d4a6 | 140 | case 'b': |
bmazzeo | 61:a56cca07d4a6 | 141 | pc.printf("Started PDB...samples being taken\r\n"); |
bmazzeo | 61:a56cca07d4a6 | 142 | pdb_start(); |
bmazzeo | 61:a56cca07d4a6 | 143 | break; |
bmazzeo | 61:a56cca07d4a6 | 144 | case 'K': |
bmazzeo | 61:a56cca07d4a6 | 145 | case 'k': |
bmazzeo | 61:a56cca07d4a6 | 146 | pc.printf("Stopped PDB\r\n"); |
bmazzeo | 61:a56cca07d4a6 | 147 | pdb_stop(); |
bmazzeo | 61:a56cca07d4a6 | 148 | break; |
bmazzeo | 63:7903a33e2fd4 | 149 | case 'T': |
bmazzeo | 63:7903a33e2fd4 | 150 | case 't': |
bmazzeo | 63:7903a33e2fd4 | 151 | pc.printf("One step of PDB\r\n"); |
bmazzeo | 63:7903a33e2fd4 | 152 | pdb_step(); |
bmazzeo | 63:7903a33e2fd4 | 153 | break; |
bmazzeo | 61:a56cca07d4a6 | 154 | case 'V': |
bmazzeo | 61:a56cca07d4a6 | 155 | case 'v': |
bmazzeo | 61:a56cca07d4a6 | 156 | pc.printf("PDB: %i\r\n",PDB0_CNT); |
bmazzeo | 61:a56cca07d4a6 | 157 | break; |
bmazzeo | 61:a56cca07d4a6 | 158 | } |
bmazzeo | 61:a56cca07d4a6 | 159 | |
bmazzeo | 55:2526b3317bc8 | 160 | } |
bmazzeo | 61:a56cca07d4a6 | 161 | |
bmazzeo | 61:a56cca07d4a6 | 162 | } |
bmazzeo | 61:a56cca07d4a6 | 163 | |
bmazzeo | 61:a56cca07d4a6 | 164 | } |