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| pmod:pmodjstk2:reference-manual [2021/05/14 23:03] – ↷ Page moved from reference:pmod:pmodjstk2:reference-manual to pmod:pmodjstk2:reference-manual Arthur Brown | pmod:pmodjstk2:reference-manual [2022/10/04 11:38] (current) – external edit 127.0.0.1 | ||
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| ===== Using the High Endurance Flash ===== | ===== Using the High Endurance Flash ===== | ||
| - | The calibration constants that the module uses are loaded into %%RAM%% from the High Endurance Flash (HEF) during the firmware initialization which occurs shortly after power is supplied. If a calibration sequence is performed, new calibration constants are loaded into %%RAM%%. In general, it is not necessary to then write the new calibration constants in %%RAM%% to the HEF unless the user wishes to have those new calibration constants available after a power cycle. The factory loaded calibration constants are available in the header file for the Pmod JSTK2 in the [[reference:pmod: | + | The calibration constants that the module uses are loaded into %%RAM%% from the High Endurance Flash (HEF) during the firmware initialization which occurs shortly after power is supplied. If a calibration sequence is performed, new calibration constants are loaded into %%RAM%%. In general, it is not necessary to then write the new calibration constants in %%RAM%% to the HEF unless the user wishes to have those new calibration constants available after a power cycle. The factory loaded calibration constants are available in the header file for the Pmod JSTK2 in the [[pmod: |
| If the user does want to store the calibration constants in a more permanent fashion, they may issue a command to write the constants from %%RAM%% to Flash, but it is recommended to wait at least 5 milliseconds once the Chip Select goes high after the data transfer is complete because the device is unable to respond to traffic on the SPI bus. | If the user does want to store the calibration constants in a more permanent fashion, they may issue a command to write the constants from %%RAM%% to Flash, but it is recommended to wait at least 5 milliseconds once the Chip Select goes high after the data transfer is complete because the device is unable to respond to traffic on the SPI bus. | ||
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| ======= Command Summary ======= | ======= Command Summary ======= | ||
| - | A list of commands supported by the Pmod JSTK2 [[reference:pmod: | + | A list of commands supported by the Pmod JSTK2 [[pmod: |
| ===== Get Commands ===== | ===== Get Commands ===== | ||
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| | 6 | VCC | | 6 | VCC | ||
| - | Although users are welcome to create their own interface code for the Pmod JSTK2 if they so desire, although pre-constructed libraries that provide functions for initializing the module, reading in values, and adjusting calibration values exist. They are available on the %%Pmod JSTK2%% [[reference/pmod/pmodjstk2/start# | + | Although users are welcome to create their own interface code for the Pmod JSTK2 if they so desire, although pre-constructed libraries that provide functions for initializing the module, reading in values, and adjusting calibration values exist. They are available on the %%Pmod JSTK2%% [[pmod:pmodjstk2:start# |
| Any external power applied to the %%Pmod JSTK2%% must be within 2.95V and 5.5V; however, it is recommended that Pmod is operated at 3.3V. | Any external power applied to the %%Pmod JSTK2%% must be within 2.95V and 5.5V; however, it is recommended that Pmod is operated at 3.3V. | ||
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| The schematics of the %%Pmod JSTK2%% are available {{reference: | The schematics of the %%Pmod JSTK2%% are available {{reference: | ||
| - | Example code demonstrating how to get information from the %%Pmod JSTK2%% can be found [[reference/pmod/pmodjstk2/start# | + | Example code demonstrating how to get information from the %%Pmod JSTK2%% can be found [[pmod:pmodjstk2:start# |
| If you have any questions or comments about the %%Pmod JSTK2%%, feel free to post them under the appropriate section (" | If you have any questions or comments about the %%Pmod JSTK2%%, feel free to post them under the appropriate section (" | ||

