Nick Johnson Arachnid
Arachnid
/ gist:0436410147f979d4a119
Last active
August 29, 2015 14:08
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| #define register(exporter, var) ExportedVariable _exported ## #var (exporter, #var, &var) | |
| Exporter ex; | |
| int blah; | |
| register(ex, blah); |
Arachnid
/ gist:ef2abaf78e600b97aab0
Created
October 30, 2014 13:39
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| CommsLink cl("My device", 12345); | |
| int my_int; | |
| void ioinit() { | |
| cl.register(&my_int); | |
| } | |
| void loop() { | |
| while(1) { |
Arachnid
/ gist:cb86b6a2a50620a7792f
Created
August 28, 2014 22:00
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| >>> struct.pack("B", 0x38) + struct.pack("H", 0) | |
| '8\x00\x00' | |
| >>> struct.pack("BH", 0x38, 0) | |
| '8\x00\x00\x00' |
Arachnid
/ Bootloader.map
Created
July 21, 2014 19:21
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| Archive member included because of file (symbol) | |
| .\CortexM0\ARM_GCC_473\Release\Bootloader.a(cyfitter_cfg.o) | |
| .\CortexM0\ARM_GCC_473\Release\Cm0Start.o (cyfitter_cfg) | |
| .\CortexM0\ARM_GCC_473\Release\Bootloader.a(Bootloader.o) | |
| .\CortexM0\ARM_GCC_473\Release\Cm0Start.o (CyBtldr_CheckLaunch) | |
| .\CortexM0\ARM_GCC_473\Release\Bootloader.a(UART.o) | |
| .\CortexM0\ARM_GCC_473\Release\main.o (UART_Start) | |
| .\CortexM0\ARM_GCC_473\Release\Bootloader.a(UART_SPI_UART.o) | |
| .\CortexM0\ARM_GCC_473\Release\main.o (UART_SpiUartGetRxBufferSize) |
Arachnid
/ gist:9040807
Last active
August 29, 2015 13:56
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| I want to make better tools for electronics makers and hobbyists, and I want you | |
| to help me do it. | |
| About a year ago, I was working on a project with a power supply I needed to | |
| test, and I designed the original Re:load. As it happens, I'm not the only one | |
| that needed one, and the Re:load became my first commercial product, and led to | |
| the formation of Arachnid Labs. The Re:load's hugely popular with anyone who | |
| needs to test a power supply, check battery life or discharge rates, or anything | |
| else that requires a steady current source - especially if they don't have | |
| thousands of dollars to throw at expensive lab equipment. |
Arachnid
/ splashscreen.c
Created
December 26, 2013 12:45
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| const char splashscreen_data[] = { | |
| // 0-37: Page 0 | |
| 0x01, 0xFF, 0xFF, 0xE0, 0xFF, 0x00, 0xE0, 0xFF, 0x00, 0xE0, | |
| 0x0A, 0x00, 0x00, 0x00, 0x40, 0x13, 0x01, 0x00, 0x80, 0x40, | |
| 0x05, 0xE0, 0x10, 0x00, 0x02, 0x02, 0xFD, 0xFD, 0x20, 0x23, | |
| 0x60, 0x29, 0xE0, 0x21, 0x00, 0x01, 0xFF, 0xFF, | |
| // 38-109: Page 1 | |
| 0x04, 0xFF, 0xDF, 0xFF, 0xBF, 0xFF, 0xE0, 0xFF, 0x03, 0xE1, | |
| 0x34, 0x07, 0x03, 0xEF, 0xB8, 0xFF, 0xC0, 0x21, 0x4B, 0x02, | |
| 0xFF, 0xFF, 0xFE, 0x20, 0x03, 0xE0, 0xC5, 0x00, 0x00, 0x00, |
Arachnid
/ quadrature_decoding.c
Created
December 24, 2013 19:23
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| // Maps current state (index) to next state for a forward transition. | |
| const int8 quadrature_states[] = {0x1, 0x3, 0x0, 0x2}; | |
| CY_ISR(quadrature_event_isr) { | |
| static int8 last_levels = 3; | |
| static int8 count = 0; | |
| int levels = Quadrature_Read(); | |
| Quadrature_ClearInterrupt(); |
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| void main() | |
| { | |
| int i; | |
| if(Bootloader_GET_RUN_TYPE == Bootloader_START_BTLDR) | |
| Bootloader_Start(); | |
| for(i = 0; i < 2000; i++) { | |
| uint8 status = Button_Read(); | |
| if(status) |
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| void CyBtldrCommStart(void) { | |
| UART_Start(); | |
| } | |
| void CyBtldrCommStop (void) { | |
| UART_Stop(); | |
| } | |
| void CyBtldrCommReset(void) { | |
| UART_SpiUartClearRxBuffer(); |
Arachnid
/ gist:7888833
Created
December 10, 2013 10:53
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| uint8_t row_counts[4]; | |
| for(int row = 0; row < NUM_ROWS; row++) | |
| for(int col = 0; col < NUM_COLUMNS; col++) | |
| row_counts[row] += (scan[col] >> row) & 1; | |
| for(int col = 0; col < NUM_COLUMNS; col++) { | |
| uint8_t column_count = set_bits[scan[col]]; | |
| for(int row = 0; row < NUM_ROWS; row++) { | |
| if(row_counts[row] > 1 && column_count > 1) |