Mark Underwood
Test program running on MAX32625MBED. Control through USB Serial commands using a terminal emulator such as teraterm or putty.
Dependencies: MaximTinyTester CmdLine MAX541 USBDevice
Diff: Test_Main_MAX11043.cpp
- Revision:
- 70:f44a577c9e59
- Parent:
- 68:ffee1e54d3fe
- Child:
- 71:62bcd01ea87f
--- a/Test_Main_MAX11043.cpp Fri Feb 21 00:45:32 2020 +0000 +++ b/Test_Main_MAX11043.cpp Fri Feb 21 10:40:45 2020 +0000 @@ -1719,7 +1719,27 @@ DigitalOut SHDN_pin(D8); // Digital Configuration Input to MAX11043 device DigitalOut DACSTEP_pin(D7); // Digital Configuration Input to MAX11043 device DigitalOut UP_slash_DWNb_pin(D6); // Digital Configuration Input to MAX11043 device +//-------------------------------------------------- +// MAX11043 ADC Read operations must be synchronized to EOC End Of Conversion +// EOC# asserts low when new data is available. +// Initiate a data read prior to the next rising edge of EOC# or the result is overwritten. +#ifndef MAX11043_EOC_INTERRUPT_POLLING +#define MAX11043_EOC_INTERRUPT_POLLING 1 +#endif // MAX11043_EOC_INTERRUPT_POLLING +//-------------------------------------------------- +// MAX11043 ADC Read operations must be synchronized to EOC End Of Conversion +// EOC# asserts low when new data is available. +// Initiate a data read prior to the next rising edge of EOC# or the result is overwritten. +#if MAX11043_EOC_INTERRUPT_POLLING +// MAX11043 EOC End Of Conversion input should be InterruptIn(PinName:EOC_pin).fall(onEOCFallingEdge); +// Workaround using DigitalIn(PinName:EOC_pin) polled to sync with EOC falling edge for ADC reads +// 2020-02-20 MAX11043_EOC_INTERRUPT_POLLING works on MAX32625MBED at 9us conversion rate, with 1us timing margin DigitalIn EOC_pin(D2); // Digital Event Output from MAX11043 device +#else // MAX11043_EOC_INTERRUPT_POLLING +// MAX11043 EOC End Of Conversion input is InterruptIn(PinName:EOC_pin).fall(onEOCFallingEdge); +InterruptIn EOC_pin(D2); // Digital Event Output from MAX11043 device +#endif // MAX11043_EOC_INTERRUPT_POLLING +//-------------------------------------------------- // example code declare device instance MAX11043 g_MAX11043_device(spi, spi_cs, CONVRUN_pin, SHDN_pin, DACSTEP_pin, UP_slash_DWNb_pin, EOC_pin, MAX11043::MAX11043_IC);