diff options
Diffstat (limited to 'openpcd/firmware/src/rc632_debug.c')
| -rw-r--r-- | openpcd/firmware/src/rc632_debug.c | 31 |
1 files changed, 29 insertions, 2 deletions
diff --git a/openpcd/firmware/src/rc632_debug.c b/openpcd/firmware/src/rc632_debug.c index f3e36b7..ef68835 100644 --- a/openpcd/firmware/src/rc632_debug.c +++ b/openpcd/firmware/src/rc632_debug.c @@ -16,12 +16,39 @@ static int rc632_reg_write_verify(u_int8_t reg, u_int8_t val) return (val == tmp); } +static u_int8_t tx_buf[0x40+1]; +static u_int8_t rx_buf[0x40+1]; + + +int rc632_dump(void) +{ + u_int8_t i; + u_int16_t rx_len = sizeof(rx_buf); + + for (i = 0; i <= 0x3f; i++) { + tx_buf[i] = i << 1; + rx_buf[i] = 0x00; + } + + /* MSB of first byte of read spi transfer is high */ + tx_buf[0] |= 0x80; + + /* last byte of read spi transfer is 0x00 */ + tx_buf[0x40] = 0x00; + rx_buf[0x40] = 0x00; + + spi_transceive(tx_buf, 0x41, rx_buf, &rx_len); + + for (i = 0; i < 0x3f; i++) + DEBUGP("REG 0x%02x = 0x%02x\r\n", i, rx_buf[i+1]); +} + int rc632_test(void) { - if (rc632_reg_write_verify(RC632_REG_MOD_WIDTH, 0x55) != 1) + if (rc632_reg_write_verify(RC632_REG_RX_WAIT, 0x55) != 1) return -1; - if (rc632_reg_write_verify(RC632_REG_MOD_WIDTH, 0xAA) != 1) + if (rc632_reg_write_verify(RC632_REG_RX_WAIT, 0xAA) != 1) return -1; return 0; |