diff options
| author | Luke T. Shumaker <lukeshu@lukeshu.com> | 2025-03-02 21:16:35 -0700 |
|---|---|---|
| committer | Luke T. Shumaker <lukeshu@lukeshu.com> | 2025-03-02 23:49:27 -0700 |
| commit | 6354a440b24d9a0b157c8c5571403f09dd04c245 (patch) | |
| tree | 303b9bb8d5cb80c9ec5b85cfee34f06bc519c8d6 /cmd/sbc_harness | |
| parent | 5a3d7bafd47067e9659c5773e371e796e6d3585b (diff) | |
libhw: Update comments and asserts about clock rate
Diffstat (limited to 'cmd/sbc_harness')
| -rw-r--r-- | cmd/sbc_harness/config/config.h | 4 | ||||
| -rw-r--r-- | cmd/sbc_harness/main.c | 10 |
2 files changed, 9 insertions, 5 deletions
diff --git a/cmd/sbc_harness/config/config.h b/cmd/sbc_harness/config/config.h index 0fa95ae..e923ac8 100644 --- a/cmd/sbc_harness/config/config.h +++ b/cmd/sbc_harness/config/config.h @@ -9,6 +9,10 @@ #include <stddef.h> /* for size_t */ +/* RP2040 *********************************************************************/ + +#define CONFIG_RP2040_SPI_DEBUG 1 /* bool */ + /* W5500 **********************************************************************/ /** diff --git a/cmd/sbc_harness/main.c b/cmd/sbc_harness/main.c index 6f1d0ca..6fa76bd 100644 --- a/cmd/sbc_harness/main.c +++ b/cmd/sbc_harness/main.c @@ -168,11 +168,11 @@ COROUTINE init_cr(void *) { rp2040_hwspi_init(&globals.dev_spi, "W5500", RP2040_HWSPI_0, SPI_MODE_0, /* the W5500 supports mode 0 or mode 3 */ - 60*1000*1000, /* as close to the W5500's max rate of 80MHz as we can without hwspi borking */ - 16, /* PIN_MISO */ - 19, /* PIN_MOSI */ - 18, /* PIN_CLK */ - 17); /* PIN_CS */ + 31250000, /* min(w5500, hwspi); w5500=80MHz; hwspi=31.25MHz, see rp2040_hwspi.h for a comment about why this is so low */ + 16, /* PIN_MISO */ + 19, /* PIN_MOSI */ + 18, /* PIN_CLK */ + 17);/* PIN_CS */ w5500_init(&globals.dev_w5500, "W5500", lo_box_rp2040_hwspi_as_spi(&globals.dev_spi), 21, /* PIN_INTR */ |