mirror
/
esp-idf
kopia lustrzana https://github.com/espressif/esp-idf
1
0
Forkuj 0
Kod Zgłoszenia Projekty Wydania Wiki Aktywność

esp_psram: fixed 40mhz cs signal glitch issue

pull/9624/head^2
Armando 2022-08-18 20:33:12 +08:00
rodzic 91e6b5de70
commit d08be42a53
1 zmienionych plików z 12 dodań i 1 usunięć
Pokaż statystyki Ściągnij plik aktualizacji Ściągnij plik porównania Expand all files Collapse all files

13
components/esp_hw_support/port/esp32/spiram_psram.c
Wyświetl plik

@ -123,6 +123,17 @@ typedef enum {
#define PICO_V3_02_PSRAM_CLK_IO 10
#define PICO_V3_02_PSRAM_CS_IO 9
#if CONFIG_SPIRAM_SPEED_40M && CONFIG_ESPTOOLPY_FLASHFREQ_40M
#define PSRAM_CS_HOLD_TIME 0
#elif CONFIG_SPIRAM_SPEED_40M && CONFIG_ESPTOOLPY_FLASHFREQ_80M
#define PSRAM_CS_HOLD_TIME 0
#elif CONFIG_SPIRAM_SPEED_80M && CONFIG_ESPTOOLPY_FLASHFREQ_80M
#define PSRAM_CS_HOLD_TIME 1
#else
#error "FLASH speed can only be equal to or higher than SRAM speed while SRAM is enabled!"
#endif
typedef struct {
uint8_t flash_clk_io;
uint8_t flash_cs_io;
@ -659,7 +670,7 @@ void psram_set_cs_timing(psram_spi_num_t spi_num, psram_clk_mode_t clk_mode)
if (clk_mode == PSRAM_CLK_MODE_NORM) {
SET_PERI_REG_MASK(SPI_USER_REG(spi_num), SPI_CS_HOLD_M | SPI_CS_SETUP_M);
// Set cs time.
SET_PERI_REG_BITS(SPI_CTRL2_REG(spi_num), SPI_HOLD_TIME_V, 1, SPI_HOLD_TIME_S);
SET_PERI_REG_BITS(SPI_CTRL2_REG(spi_num), SPI_HOLD_TIME_V, PSRAM_CS_HOLD_TIME, SPI_HOLD_TIME_S);
SET_PERI_REG_BITS(SPI_CTRL2_REG(spi_num), SPI_SETUP_TIME_V, 0, SPI_SETUP_TIME_S);
} else {
CLEAR_PERI_REG_MASK(SPI_USER_REG(spi_num), SPI_CS_HOLD_M | SPI_CS_SETUP_M);