Merge PIO code into w6300.cpp, rename pio.pio to qspi.pio

2026-04-04 23:08:33 +09:00
parent 3af0f7695d
commit 8e550d37db
5 changed files with 219 additions and 245 deletions
--- a/w6300/qspi.pio
+++ b/w6300/qspi.pio
@@ -0,0 +1,18 @@
+.program wizchip_pio_spi_quad_write_read
+.side_set 1
+
+write_bits:
+    out pins, 4             side 0
+    jmp x-- write_bits      side 1
+    set pins 0              side 0
+public write_bits_end:
+read_byte_delay:
+    set pindirs 0           side 0
+read_byte:
+    set x 0                 side 1
+read_bits:
+    in pins, 4              side 0
+    jmp x-- read_bits       side 1
+    in pins, 4              side 0
+    jmp y-- read_byte       side 0
+public read_bits_end: