@User in

/*
 * I/O mapping for analog
 *
 * mprj_io[37]  io_in/out/oeb/in_3v3[26]  ---                    ---
 * mprj_io[36]  io_in/out/oeb/in_3v3[25]  ---                    ---
 * mprj_io[35]  io_in/out/oeb/in_3v3[24]  gpio_analog/noesd[17]  ---
 * mprj_io[34]  io_in/out/oeb/in_3v3[23]  gpio_analog/noesd[16]  ---
 * mprj_io[33]  io_in/out/oeb/in_3v3[22]  gpio_analog/noesd[15]  ---
 * mprj_io[32]  io_in/out/oeb/in_3v3[21]  gpio_analog/noesd[14]  ---
 * mprj_io[31]  io_in/out/oeb/in_3v3[20]  gpio_analog/noesd[13]  ---
 * mprj_io[30]  io_in/out/oeb/in_3v3[19]  gpio_analog/noesd[12]  ---
 * mprj_io[29]  io_in/out/oeb/in_3v3[18]  gpio_analog/noesd[11]  ---
 * mprj_io[28]  io_in/out/oeb/in_3v3[17]  gpio_analog/noesd[10]  ---
 * mprj_io[27]  io_in/out/oeb/in_3v3[16]  gpio_analog/noesd[9]   ---
 * mprj_io[26]  io_in/out/oeb/in_3v3[15]  gpio_analog/noesd[8]   ---
 * mprj_io[25]  io_in/out/oeb/in_3v3[14]  gpio_analog/noesd[7]   ---
 * mprj_io[24]  ---                       ---                    user_analog[10]
 * mprj_io[23]  ---                       ---                    user_analog[9]
 * mprj_io[22]  ---                       ---                    user_analog[8]
 * mprj_io[21]  ---                       ---                    user_analog[7]
 * mprj_io[20]  ---                       ---                    user_analog[6]  clamp[2]
 * mprj_io[19]  ---                       ---                    user_analog[5]  clamp[1]
 * mprj_io[18]  ---                       ---                    user_analog[4]  clamp[0]
 * mprj_io[17]  ---                       ---                    user_analog[3] 
 * mprj_io[16]  ---                       ---                    user_analog[2] 
 * mprj_io[15]  ---                       ---                    user_analog[1]
 * mprj_io[14]  ---                       ---                    user_analog[0]
 * mprj_io[13]  io_in/out/oeb/in_3v3[13]  gpio_analog/noesd[6]   ---
 * mprj_io[12]  io_in/out/oeb/in_3v3[12]  gpio_analog/noesd[5]   ---
 * mprj_io[11]  io_in/out/oeb/in_3v3[11]  gpio_analog/noesd[4]   ---
 * mprj_io[10]  io_in/out/oeb/in_3v3[10]  gpio_analog/noesd[3]   ---
 * mprj_io[9]   io_in/out/oeb/in_3v3[9]   gpio_analog/noesd[2]   ---
 * mprj_io[8]   io_in/out/oeb/in_3v3[8]   gpio_analog/noesd[1]   ---
 * mprj_io[7]   io_in/out/oeb/in_3v3[7]   gpio_analog/noesd[0]   ---
 * mprj_io[6]   io_in/out/oeb/in_3v3[6]   ---                    ---
 * mprj_io[5]   io_in/out/oeb/in_3v3[5]   ---                    ---
 * mprj_io[4]   io_in/out/oeb/in_3v3[4]   ---                    ---
 * mprj_io[3]   io_in/out/oeb/in_3v3[3]   ---                    ---
 * mprj_io[2]   io_in/out/oeb/in_3v3[2]   ---                    ---
 * mprj_io[1]   io_in/out/oeb/in_3v3[1]   ---                    ---
 * mprj_io[0]   io_in/out/oeb/in_3v3[0]   ---                    ---
 *
 */

do`user_analog[0], . . ., user_analog[3], user_analog[7], . . ., user_analog[10]` correspond to the gpio_analog with esd (pad_a_esd_0_h) in the standard I/O cell? on second thought, those

user_analog[*]

are the 11 repurposed GPIO pads, right? if I want to access the old GPIO pins as an analog in/out, I should use these kinds of pins:

* mprj_io[0]   io_in/out/oeb/in_3v3[0]   ---                    ---

but make sure to configure them appropriately? I wanna make sure I configure my functional verilog model correctly 🙂 i might've been reading this pin list wrong... does "gpio_analog/nosed" mean you can get either "gpio_analog" or "gpio_nosed"? this makes the most sense to me

user_analog

are the dedicated analog pins unique to Caravan and do not have any GPIO. They are just straight-through connections from core to pad.

io_in/out/oeb/in_3v3

are all digital signals related to GPIO functions. If you want to connect analog signals to the GPIO, (1) connect to

gpio_analog

(connection to pad through a resistor) or

gpio_noesd

(direct connection to pad), (2) make sure your signal does not exceed VDDIO, and (3) make sure your program in flash for the management SoC shuts off the digital input and output buffers first thing on startup.