Hiseonroz wrote:Hey Rudi.. I'd like to revive this thread!
Firstly, thanks for all of your work on getting PSRAM working on the PICO-D4!
What are the final pin mappings you used for rev1 silicon?
How i can order this board?seonroz wrote: I have a board that I have designed (TinyPICO - http://tinypico.com ) that I am trying to get PSRAM working with.
Thanks Boris!loboris wrote:I think you must remap the pins, otherwise the psRAM driver will try to use the wrong pins for psRAM and it will not work...seonroz wrote:NOTE: I've NOT tried re-mapping pins in spiram_psram.c as that's just a bad idea... I want TinyPICO to be compatible with PICO boards.
Conditional defines should probably be used in final spiram_psram.c for psSRAM with PICO.
For example, on ESP32-PICO-D4 GPIO17 is used for Flash/psRAM IO1, on other ESP32 chips for Flash CLK. Other pins are connected differently too.
Hopefully this will be supported officially soon...
Code: Select all
#define PSRAM_SPIQ_IO
#define PSRAM_SPID_IO
#define PSRAM_SPIWP_IO
#define PSRAM_SPIHD_IO
Thanks rudi! I'll go over those links tomorrow (almost bed time here in Australia).rudi ;-) wrote:Hiseonroz wrote:Hey Rudi.. I'd like to revive this thread!
Firstly, thanks for all of your work on getting PSRAM working on the PICO-D4!
What are the final pin mappings you used for rev1 silicon?
https://esp32.com/viewtopic.php?f=2&p=18439#p17627
https://esp32.com/viewtopic.php?f=2&p=18439#p18431
How i can order this board?seonroz wrote: I have a board that I have designed (TinyPICO - http://tinypico.com ) that I am trying to get PSRAM working with.
best wishes
rudi
btwseonroz wrote:Thanks rudi! I'll go over those links tomorrow (almost bed time here in Australia).rudi ;-) wrote:Hiseonroz wrote:Hey Rudi.. I'd like to revive this thread!
Firstly, thanks for all of your work on getting PSRAM working on the PICO-D4!
What are the final pin mappings you used for rev1 silicon?
https://esp32.com/viewtopic.php?f=2&p=18439#p17627
https://esp32.com/viewtopic.php?f=2&p=18439#p18431
How i can order this board?seonroz wrote: I have a board that I have designed (TinyPICO - http://tinypico.com ) that I am trying to get PSRAM working with.
best wishes
rudi
TinyPICO is not available yet.. all it's waiting on is getting PSRAM working and it's done. I'm off to Shenzhen in a few weeks to talk to some small run PCBA people... but at this stage I might be hand assembling them
Cheers,
Seon
unexpectedmaker.com
Code: Select all
typedef struct {
int mosi_io_num; ///< GPIO pin for Master Out Slave In (=spi_d) signal, or -1 if not used.
int miso_io_num; ///< GPIO pin for Master In Slave Out (=spi_q) signal, or -1 if not used.
int sclk_io_num; ///< GPIO pin for Spi CLocK signal, or -1 if not used.
int quadwp_io_num; ///< GPIO pin for WP (Write Protect) signal which is used as D2 in 4-bit communication modes, or -1 if not used.
int quadhd_io_num; ///< GPIO pin for HD (HolD) signal which is used as D3 in 4-bit communication modes, or -1 if not used.
int max_transfer_sz; ///< Maximum transfer size, in bytes. Defaults to 4094 if 0.
uint32_t flags; ///< Abilities of bus to be checked by the driver. Or-ed value of ``SPICOMMON_BUSFLAG_*`` flags.
} spi_bus_config_t;
Thanks Boris!loboris wrote:SPID -> IO0Code: Select all
typedef struct { int mosi_io_num; ///< GPIO pin for Master Out Slave In (=spi_d) signal, or -1 if not used. int miso_io_num; ///< GPIO pin for Master In Slave Out (=spi_q) signal, or -1 if not used. int sclk_io_num; ///< GPIO pin for Spi CLocK signal, or -1 if not used. int quadwp_io_num; ///< GPIO pin for WP (Write Protect) signal which is used as D2 in 4-bit communication modes, or -1 if not used. int quadhd_io_num; ///< GPIO pin for HD (HolD) signal which is used as D3 in 4-bit communication modes, or -1 if not used. int max_transfer_sz; ///< Maximum transfer size, in bytes. Defaults to 4094 if 0. uint32_t flags; ///< Abilities of bus to be checked by the driver. Or-ed value of ``SPICOMMON_BUSFLAG_*`` flags. } spi_bus_config_t;
SPIQ -> IO1
SPIWP -> IO2
SPIHD -> IO3
Code: Select all
#define FLASH_CLK_IO 6 //Psram clock is a delayed version of this in 40MHz mode
#define FLASH_CS_IO 11
#define PSRAM_CLK_IO 21 // 17
#define PSRAM_CS_IO 22 // 16
#define PSRAM_SPIQ_IO 23 // 7
#define PSRAM_SPID_IO 18 // 8
#define PSRAM_SPIWP_IO 19 // 10
#define PSRAM_SPIHD_IO 25 // 9Code: Select all
#define PSRAM_CLK_IO 6 // 17
#define PSRAM_CS_IO 9 // 16
#define PSRAM_SPIQ_IO 8 // 7
#define PSRAM_SPID_IO 17 // 8
#define PSRAM_SPIWP_IO 7 // 10
#define PSRAM_SPIHD_IO 11 // 9Users browsing this forum: No registered users and 163 guests